JPH057186Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application The present invention relates to a tank for a powder transport vehicle that carries powdered materials to a destination.

(B) Conventional technology As shown in FIG. 3, the tank of a conventional powder conveyance vehicle is manufactured so that the upper surface 1a of the tank 1 has a substantially flat surface shape. After transporting the powder to a predetermined destination, a valve (not shown) is opened to force the pressurized powder inside to the outside.

Incidentally, the lower surface 1b of the tank 1 is provided with an angle of inclination (angle of repose) of 12 to 15 degrees with respect to the horizontal plane, so that the powder in the tank 1 can be easily discharged to the outside.

(c) Problems to be solved by the invention However, as in the past, the upper surface of the tank 1
If a has a substantially flat surface shape, when the powder is introduced into the tank 1 from the inlet 2 located at the top, it will be accommodated as shown by diagonal lines in FIG. The state will be as follows.

Since this gap 3 is a wasted space in which no powder is accommodated, the conventional tank 1 has a problem in that the efficiency of accommodating the powder is poor in proportion to its size.

The purpose of the present invention was made in view of the above-mentioned problems, and is to provide a tank for a powder pumping vehicle that has good powder storage efficiency and is easy to process.

(d) Means for solving the problem In order to achieve the above object, the tank of the powder pumping vehicle of the present invention has a central cylindrical plate that is open at both ends, and a tank that is open at one end and at the other end. In the tank of a powder pumping vehicle formed by joining the open end of a closed cylindrical body in the shape of a truncated cone, the length in the axial direction on the lower surface of the central cylindrical plate is made larger than on the upper surface side, and The upper surface of the cylindrical body is inclined at a predetermined angle with respect to a horizontal plane when the cylindrical body is bonded and fixed to the central cylindrical plate.

(e) Effects In the present invention, the upper surface of the cylinder is inclined, and the void created in the tank when powder is introduced is minimized, so that the powder can be accommodated efficiently.

Further, since the tank has a three-part structure consisting of a central cylindrical plate and a substantially truncated conical cylinder that is fitted and fixed to the central cylindrical plate, it is easy to process.

By making the central cylindrical plate a special shape in which the bottom side is longer than the top side, the conical shell can be joined perpendicularly to the open end surface of the central cylindrical plate by joining a normal symmetrical conical shell. Since the inclination angle of the tank top surface can be easily set by selecting the vertical dimension difference of the central cylindrical plate to a desired value, processing such as cutting of materials and assembly becomes much easier.

(f) Examples Hereinafter, details of the present invention will be explained using examples shown in the drawings.

FIG. 1 is a side view showing an embodiment of a tank of a powder feeding vehicle according to the present invention, and FIG. 2 is a side view of a powder feeding vehicle equipped with the same tank.

Powder is put into the tank 5 mounted on the powder transport vehicle 4 through an inlet 5a provided at the top, and when the powder reaches a predetermined destination, the internal pressure is increased by opening the valve 6. The compressed powder is forced to the outside.

The tank 5 is composed of a central cylindrical plate 7 with both ends open, and a pair of substantially truncated conical cylinders 8 and 9 fitted and fixed on both sides of the central cylindrical plate 7.

As shown in detail in FIG. 1, the central cylindrical plate 7 has upper and lower surfaces 7a and 7b that are parallel to each other, and both side surfaces 7c are slanted to expand downward.

Further, the cylinders 8 and 9 have the same shape, and have a structure in which one end is open and the other end is closed by end plates 10 and 11.

The openings 8a, 9a of the cylinders 8, 9 are fitted into the openings from both side surfaces 7c of the central cylindrical plate 7, and then fixed by welding.

Incidentally, when fixed by welding, the angle between the center line of the cylinders 8 and 9 and both side surfaces 7c of the central cylindrical plate 7 is 90 degrees.

When the central cylindrical plate 7 and the cylindrical bodies 8, 9 are fixed, the upper surfaces 8b, 9b of the cylindrical bodies 8, 9 are on the horizontal plane 13.
It is inclined at a predetermined angle θ (3 degrees to 5 degrees) with respect to the surface.

That is, this inclination angle θ is set to be approximately equal to the inclination angle formed by the upper surface of the powder when the powder is put into the tank 5, and therefore, when the powder is contained, the inclination angle θ is The number of voids is minimized, and the powder storage efficiency can be greatly improved.

Further, the tank 5 can be made smaller by eliminating unnecessary space, which has the advantage of making it easier to mount it on the powder pumping vehicle 4.

Further, the tank 5 has upper and lower surfaces 8b, 9b,
Because the inclination angles of the upper surfaces 8c and 9c are different (the inclination angles of the upper surfaces 8b and 9b are 3 degrees to 5 degrees, the lower surfaces 8c and 9
c), it is extremely difficult to process it in one piece.

Therefore, the tank 5 is made into a three-part structure consisting of a central cylindrical plate 7 and a pair of cylindrical bodies 8 and 9 each having a substantially truncated conical shape to facilitate processing.

(g) Effects of the invention As described above, in the invention, the upper surface of the cylinder is inclined at a predetermined angle with respect to the horizontal plane, and the upper surface of the tank is made to approximately match the angle of inclination of the upper surface of the powder when it is introduced into the tank. With this structure, the powder can be stored in the tank almost completely, and the powder storage efficiency can be greatly improved compared to the conventional tank.

Furthermore, since unnecessary space is eliminated from the tank, the tank itself can be made smaller and can be easily mounted on a powder pumping vehicle.

Furthermore, since the tank has a three-part structure consisting of a central cylindrical plate and a pair of cylindrical bodies, machining can be easily performed.

Furthermore, especially regarding the shape of the central cylindrical plate, by making the bottom side longer than the top side (when assembled into a tank), the conical cylinder (shell) has a special shape, for example. 1978-
Instead of an asymmetrical deformed conical shape as seen in the prior art described in Publication No. 20685, a normal symmetrical conical shape can be joined perpendicularly to the open end surface of the central cylindrical plate, and the angle of inclination of the top surface of the tank can also be changed. The advantages are very great, such as the fact that it can be easily set by selecting the vertical dimension difference of the central cylindrical plate to a desired value, making processing such as cutting and assembly of materials much easier. It is.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the tank of the powder transport vehicle according to the present invention, Fig. 2 is a side view of a powder transport vehicle equipped with the same tank, and Fig. 3 is an example of a conventional tank. FIG. 4... Powder feeding vehicle, 5... Tank, 7... Central cylindrical plate, 8, 9... Cylindrical body, 8a, 9a... Upper surface.

Claims (1)

[Scope of utility model registration request] In a tank for a powder pumping vehicle, which is formed by joining an open end of a substantially truncated conical cylinder having one end open and the other end closed to an open end of a central cylindrical plate having both ends open, the central cylindrical plate The axial length of the lower surface of the cylinder is larger than that of the upper surface, and the upper surface of the cylinder is inclined at a predetermined angle with respect to the horizontal plane when the cylinder is bonded and fixed to the central cylindrical plate. A tank for a powder pumping vehicle.