JP2007022658A - Granule body transporting vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tank structure suitable for a granule body transporting vehicle. <P>SOLUTION: A granule body transporting vehicle 1is provided which has a tank 2 filled with granule body installed thereon. This granule body transporting vehicle 1 comprises a discharging pipe 60 for use in discharging granule body with its opening end being faced against the bottom part of the tank and a composite discharging pipe 72 for use in transporting the granule body fed from the discharging pipe 60. The composite discharging pipe 72 is installed in the tank 2 and the discharging pipe 60 is curved within the tank 2 and connected to the composite discharging pipe 72. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a powder carrier for transporting powder such as alumina, granulated sugar, cement, lime, wheat flour, and plastic resin pellets, coarse particles such as ore, fine coal, etc., and discharging them to a predetermined place. It is about improvement.

  Conventionally, there exists a thing as shown, for example in FIG. 12 as this kind of granular material transport vehicle (refer patent document 1).

To explain this, as shown in FIG. 12, a sealed tank 2 is mounted on the chassis frame of the granular material transport vehicle 1. The tank 2 is formed long in the traveling direction of the granular material transport vehicle 1, that is, in the front-rear direction, and a manhole 5 that is opened and closed by a manhole cover 6 is opened in the ceiling wall. A granular material is thrown in and accommodated. Three granular material discharge units 10 are provided in the lower part of the tank 2. The powder collected in the powder discharge unit 10 is discharged through the discharge pipes 11 and the collective discharge pipes 12 by pressurized air.
JP-A-11-180557 JP-A-57-121526

  However, in such a conventional granular material transport vehicle, as shown in FIG. 13, the tank 2 is provided with a cylindrical tank shell 13 and a funnel-shaped slide cylinder 14 coupled to each other. Due to the structure in which the cylindrical tank shell 13 covers the entire slide cylinder 14, there is a problem that the weight of the tank 2 is increased and the amount of the granular material mounted is reduced.

  As shown in FIG. 14, in order to reduce the weight of the tank 2, a semi-cylindrical tank shell 13 and a funnel-shaped slide cylinder 14 are combined and provided, and the slide cylinder 14 is provided outside the tank shell 13. There is a structure that is exposed to the surface. However, in this case, there is a problem that it is difficult to ensure the rigidity of the tank 2 (see Patent Document 2).

  In addition, since the granular material in the tank 2 is discharged through each discharge pipe 11 extending outside and inside the tank 2 and the collective discharge pipe 12 arranged outside the tank 2, each discharge pipe 11 Therefore, there is a problem in that the passage length from the exhaust pipe 12 to the collective discharge pipe 12 becomes long, and the granular material is easily clogged in the middle of each discharge pipe 11.

  Further, for example, in Japanese Patent Application Laid-Open No. 10-35890, there is a structure including a tank discharge port that opens to the bottom of the tank and discharges the granular material, and a discharge pipe that is connected to the tank discharge port and extends to the outside of the tank. It is disclosed. However, in this case, since the discharge pipe protrudes from the lower part of the tank, there is a problem that the overall height of the vehicle is increased by the amount of protrusion of the discharge pipe and the running stability is deteriorated.

  This invention is made | formed in view of said problem, and it aims at providing the tank structure suitable for a granular material transport vehicle.

  1st invention is applied to the granular material carrier vehicle which mounts the tank in which a granular material is accommodated.

  The tank has a structure in which a semi-cylindrical tank shell and a funnel-shaped slide cylinder are connected to each other, and most of the slide cylinder is exposed to the outside of the tank shell.

  According to a second aspect, in the first aspect, the tank shell has a protruding portion that protrudes so as to face the outer surface of the slide cylinder.

  3rd invention is a granular material transport vehicle which mounts the tank in which a granular material is accommodated in a granular material transport vehicle, the tank outlet which opens to the bottom part of a tank and discharges a granular material, and this And a discharge pipe connected to the tank discharge port and extending to the outside of the tank. The discharge pipe is formed such that its passage width gradually increases from the tip end portion to the base end portion.

  A fourth invention is characterized in that, in the third invention, the discharge pipe is formed so as to extend substantially in the horizontal direction and its passage center line is located above the tank discharge port.

  5th invention is a granular material transport vehicle, The discharge pipe which discharges a granular material with the opening end facing the bottom part of a tank, The collective discharge pipe which carries out the granular material guide | induced from this discharge pipe, The collective discharge pipe is disposed in the tank, and the discharge pipe is bent in the tank and connected to the collective discharge pipe.

  A sixth invention is characterized in that, in the fifth invention, a discharge valve for opening and closing the discharge pipe is provided, and the discharge valve is arranged in the tank.

  According to a seventh invention, in the fifth or sixth invention, the collective discharge pipe is disposed so as to extend in the vehicle front-rear direction through the substantially central portion of the tank, and the exhaust hose connected to the collective exhaust pipe is provided at the approximate center of the vehicle. It was taken out from the part.

  According to the first invention, the tank has a structure in which a semi-cylindrical tank shell and a funnel-shaped slide cylinder are coupled to each other, so that a conventional cylindrical tank shell covering the entire slide cylinder is provided. In comparison, the tank shell is significantly reduced in size and the weight of the tank can be reduced.

  According to the second aspect of the invention, the tank shell has the protruding portion that protrudes so as to face the outer surface of the slide cylinder, so that both the rigidity of the tank can be secured and the weight of the tank can be reduced.

  According to the third aspect of the present invention, the discharge pipe disposed in the conventional tank is opposed to the bottom of the granular material discharge section because the discharge pipe is provided at the bottom of the tank and extends to the outside of the tank. In comparison with the above, the resistance of the powder particles flowing from the tank to the discharge pipe is suppressed to be small, and the powder particles can be discharged quickly. Further, since the discharge pipe is not interposed in the tank, the inside of the tank can be easily cleaned.

  And since the discharge pipe is formed so that its passage width gradually increases from its front end to the base end, the discharge pipe does not protrude greatly downward from the tank, and the passage cross-sectional area of the discharge pipe is sufficiently large. It can be secured. For this reason, the overall height of the vehicle can be kept low.

  According to the fourth aspect of the invention, the discharge pipe extends in a substantially horizontal direction and the passage center line of the discharge pipe is formed above the tank discharge port, so that the discharge pipe protrudes greatly downward from the tank. Therefore, the passage cross-sectional area of the discharge pipe can be sufficiently secured. For this reason, the overall height of the vehicle can be kept low.

  According to the fifth invention, since the collective discharge pipe is disposed so as to penetrate the inside of the tank, compared with the structure in which the conventional collective discharge pipe is arranged outside the tank, the distance from the tank discharge port to the collective discharge pipe is increased. The passage length can be shortened. As a result, it is possible to prevent the particles from clogging the discharge pipe by flowing smoothly through the discharge pipe and being guided to the collective discharge pipe.

  According to the sixth aspect of the invention, since the discharge valve is provided in the tank, the speed of the particles that collide with the discharge valve is reduced, and wear of the discharge valve is suppressed.

  According to the seventh aspect of the present invention, the discharge hose extends in the same manner to the left and right of the vehicle because the collective discharge pipe extending in the vehicle front-rear direction is passed through the substantially central portion of the tank and the discharge hose is taken out from the substantially central portion of the vehicle. Can be carried out easily.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, a sealed tank 2 is mounted on a chassis frame of the granular material transport vehicle 1 via a support frame 3. The tank 2 is roughly divided into a front chamber, a middle chamber, and a rear chamber. A manhole 5 is opened at the top of the tank 2, and a manhole cover 6 that opens and closes the manhole 5 is provided. The granular material charged from the manhole 5 is accommodated in the tank 2.

  As shown in FIGS. 2 (a), 2 (b) and 3, the tank 2 has an open end of a semi-cylindrical tank shell 21 opened downward and a funnel-shaped slide cylinder 22 opened upward. Provided in combination. The tank shell 21 has a protruding portion 21 a that protrudes so as to face the outer surface of the slide cylinder 22. That is, the tank shell 21 has a structure in which the lower part of the conventional cylindrical tank shell 21 covering the entire slide cylinder 22 is deleted, and most of the slide cylinder 22 is exposed to the outside.

  As shown in FIG. 6, the protruding portion 21 a of the tank shell 21 is formed to protrude away from the outer wall surface of the slide cylinder 22. In addition to this structure, as shown in FIG. 7, the protruding portion 21 a of the tank shell 21 may be bent and coupled to the outer wall surface of the slide cylinder 22.

  In the lower part in the tank 2, there are provided three powder body discharge units 10 that are front, rear, and intermediate at intervals in the longitudinal direction. As shown in FIG. 4, an aeration canvas 11 is stretched in a funnel shape inside each granular material discharge section 10, and the granular material is pulverized by fluidizing the powder fluid by air pressure on the aeration canvas 11. It collects at the bottom of the discharge part 10.

  As shown in FIGS. 3 (a), 3 (b), and FIG. 4, a tank discharge port 55 is opened at the bottom of each granular material discharge unit 10, and is connected to the tank discharge port 55 to be outside the tank 2. Each extending discharge pipe 50 is provided. The discharge pipe 50 extends in a substantially horizontal direction, and is formed so that the passage center line O of the discharge pipe 50 is located above the tank discharge port 55. That is, the passage center line O of the discharge pipe 50 is disposed higher than the bottom of each granular material discharge unit 10.

  As shown in FIG. 5, the passage width W of the discharge pipe 50 is gradually increased from the distal end portion 50 b to the base end portion 50 a, and the passage height is secured while ensuring the passage cross-sectional area at the base end portion 50 a of the discharge pipe 50. Try to suppress this. The passage width W is formed larger than the passage height at the base end portion 50a of the discharge pipe 50.

  As shown in FIG. 4, the bottom surface 50c of the discharge pipe 50 is formed to be inclined upward from the base end portion 50a to the tip end portion 50b. Moreover, the outer wall member 19 of each granular material discharge | emission part 10 comprises the upper wall part of the discharge pipe 50. FIG.

  As shown in FIG. 8, each discharge pipe 50 is connected to a collective discharge pipe 52 extending in the longitudinal direction of the tank 2 via each discharge valve 51. The discharge valve 51 is a butterfly type having a valve body that rotates in the discharge pipe 50 and is manually opened and closed.

  The granular material in the tank 2 is discharged to the outside through the discharge pipes 50 and the collective discharge pipes 52 by pressurized air. Each powder particle discharge unit 10 is connected to a pipe 8 for introducing pressurized air, and an upstream end of the collective discharge pipe 52 is connected to an ejector pipe 54 for introducing pressurized air. The tank 2 is pressurized when the powder is discharged, and the powder is pushed out of the tank 2 to the discharge pipe 50. At the same time, pressurized air is passed from the ejector pipe 54 to the collect discharge pipe 52 to collect the powder. Pressure is discharged from the discharge pipe 52 to the discharge hose 53.

  In the present embodiment, each discharge pipe 50 is independently connected to the collective discharge pipe 52. As another embodiment, as shown in FIG. 9, the front discharge pipe 50 and the intermediate discharge pipe 50 may be joined and connected to the collective discharge pipe 52. In any case, the intermediate discharge pipe 50 is disposed so as to avoid the left rear wheel 58, and the collective discharge pipe 52 is disposed above the left rear wheel 58.

  Next, the operation will be described.

  Since the tank 2 has a structure in which a semi-cylindrical tank shell 21 and a funnel-shaped slide cylinder 22 are connected to each other, the tank 2 is compared with a structure in which a cylindrical tank shell covering the entire slide cylinder is provided. The shell 21 is greatly reduced in size, and the tank 2 can be reduced in weight.

  The tank shell 21 has a protruding portion 21a protruding so as to face the outer surface of the slide cylinder 22, and the length of the protruding portion 21a is arbitrarily set to ensure the rigidity of the tank 2, and the tank 2 can be reduced.

  Since each discharge pipe 50 is provided at the bottom of each granular material discharge section 10 and extends outside the tank 2, the discharge pipe disposed in the conventional tank is opposed to the bottom of the granular discharge section. Compared with the structure to be made, the resistance of the granular material which flows into the discharge pipe 50 from the tank 2 is suppressed small, and the granular material can be discharged quickly. Further, since no discharge pipe is interposed in the tank 2, the inside of the tank 2 can be easily cleaned.

  However, since the discharge pipe 50 is provided so as to protrude from the lower part of the tank 2, the overall height of the vehicle is increased by the amount that the discharge pipe 50 protrudes. In response to this, the discharge pipe 50 extends in a substantially horizontal direction and is formed so that the passage center line O of the discharge pipe 50 is located above the tank discharge port 55. While not projecting greatly downward, the overall height of the vehicle can be suppressed, and the passage cross-sectional area of the discharge pipe 50 can be sufficiently secured.

  Next, another embodiment shown in FIGS. 10A and 10B and FIGS. 11A and 11B will be described. In addition, the same code | symbol is attached | subjected to the same structure part as the said embodiment.

  While the discharge pipes 60 are opposed to the bottoms of the granular material discharge units 10, the collective discharge pipes 72 that collect the discharge pipes 60 are arranged so as to penetrate the tank 2, and the discharge pipes 60 are elbowed in the tank 2. And is connected to the collective discharge pipe 72.

  The collective discharge pipe 72 passes through a substantially central portion of the tank 2 and extends in the vehicle front-rear direction, and has a portion 74 exposed to the outside between the tanks 2 in the middle thereof. The discharge hose 73 is connected to the rear end of the collective discharge pipe 72 and is taken out from the substantially rear central portion of the vehicle.

  The discharge pipe 60 has an open end 61 that extends downward, and the open end 61 is attached to the discharge pipe 60 via a discharge valve 62. That is, the discharge valve 62 is provided in the tank 2. The butterfly discharge valve 62 is operated via a rod 63 that penetrates the tank 2.

  Constructed as described above, the granular material in the tank 2 is discharged to the outside through the discharge pipes 60 and the collective discharge pipes 72 by pressurized air. At the time of discharge of the granular material, the inside of the tank 2 is pressurized to push out the granular material from the tank 2 to the discharge pipe 60, and pressurized air is allowed to flow from the ejector pipe 54 to the collective discharge pipe 72. The pressure is fed from the collective discharge pipe 72 to the discharge hose 73.

  Because of the structure in which the collective discharge pipe 72 is disposed so as to penetrate through the tank 2, the length of the passage from the exhaust pipe 60 to the ejector pipe 54 can be shortened compared to the conventional structure in which the collective discharge pipe is arranged outside the tank. . As a result, even the particles can smoothly flow through the discharge pipe 60 and be led to the collective discharge pipe 72, and the particles can be prevented from clogging the discharge pipe 60.

  Since the discharge valve 62 is provided in the tank 2 immediately downstream of the opening end 61 of the discharge pipe 60, the speed of the particles that collide with the discharge valve 62 is reduced, and wear of the discharge valve 62 is suppressed.

  Since the collective discharge pipe 72 extending in the vehicle front-rear direction is passed through the substantially central portion of the tank 2 and the discharge hose 73 is taken out from the substantially central portion of the vehicle, the discharge hose 73 can be similarly extended to the left and right sides of the vehicle. Thus, the carry-out work can be easily performed.

  The present invention is not limited to the above-described embodiment, and it is obvious that various modifications can be made within the scope of the technical idea.

The side view of the granular material carrier vehicle which shows embodiment of this invention. Similarly (a) is sectional drawing of the tank which follows the BB line of (b), (b) is a side view of a tank. Similarly (a) is sectional drawing which follows the AA line of FIG. 2, (b) is a side view of a discharge pipe. Similarly sectional drawing of a granular material discharge part and a discharge pipe. Similarly, (a) is a plan view of the discharge pipe and the collective discharge pipe. The schematic sectional drawing of a tank similarly. The schematic sectional drawing of a tank similarly. Similarly, (a) is a plan view of the discharge pipe and the collective discharge pipe, and (b) is a front view. (A) is sectional drawing of the tank which shows other embodiment, (b) is a side view of a tank. (A) is sectional drawing of the tank which shows other embodiment, (b) is a side view of a tank. Similarly, (a) is a sectional view of the tank in the front chamber, and (b) is a sectional view of the tank in the middle chamber and the rear chamber. The side view of the granular material transport vehicle which shows a prior art example. The schematic sectional drawing of a tank similarly. The schematic sectional drawing of a tank similarly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Granule carrier vehicle 2 Tank 10 Granule discharge part 21 Tank shell 21a Protrusion part 22 Slide cylinder 50 Discharge pipe 51 Discharge valve 52 Collective discharge pipe 53 Discharge hose 54 Ejector pipe 55 Tank discharge port 60 Discharge pipe 62 Discharge valve 72 Aggregation Discharge pipe 73 Discharge hose

Claims (7)

  In a granular material transport vehicle equipped with a tank for storing granular material, the tank is formed by combining the open end of a semi-cylindrical tank shell that opens downward with a funnel-shaped slide cylinder that opens upward. A granular material carrier characterized by being provided.   The granular material transport vehicle according to claim 1, wherein the tank shell has a protruding portion protruding so as to face the outer surface of the slide cylinder.   In a granular material transport vehicle equipped with a tank that contains powder particles, a tank discharge port that opens to the bottom of the tank and discharges powder particles, and a discharge that extends to the outside of the tank connected to the tank discharge port A particulate transport vehicle, characterized in that the discharge pipe is formed such that its passage width gradually increases from the tip end portion to the base end portion.   The granular material transport vehicle according to claim 3, wherein the discharge pipe is formed so as to extend in a substantially horizontal direction and a passage center line thereof is positioned above the tank discharge port.   In a granular material transport vehicle equipped with a tank in which the granular material is accommodated, a discharge pipe for discharging the granular material with its open end facing the bottom of the tank, and a granular material guided from the discharge pipe A particulate transport vehicle comprising a collective discharge pipe to be carried out, the collective discharge pipe disposed in a tank, and the discharge pipe being bent in the tank and connected to the collective discharge pipe.   6. The granular material transport vehicle according to claim 5, further comprising a discharge valve that opens and closes the discharge pipe, and the discharge valve is disposed in the tank.   6. The collective discharge pipe is disposed so as to extend in the vehicle front-rear direction through a substantially central portion of the tank, and a discharge hose connected to the collective discharge pipe is taken out from the substantially central portion of the vehicle. 6. The granular material carrier vehicle according to 6.