JPH06300192A - Tank made of aluminum - Google Patents

Abstract

PURPOSE:To provide a tank made of aluminum which is constituted to be light and have no weld part and facilitate assembly and manufacture by a method wherein the body drum part of a tank made of aluminum formed such that end plates are welded on both sides of a cylindrical body drum part is formed of an extruded material made of aluminum. CONSTITUTION:The body drum part 10 of a tank is formed of an extruded material made of aluminum and an end plate 20 is formed of an aluminum alloy. The tank made of aluminum comprising the body drum part 10 and the end plates 20 is used as a part of a pneumatic brake system for a truck and an air tank to feed high pressure air as occasion demands. By forming a whole by using aluminum, the weight of the tank is reduced and the weight of the brake system is reduced. Since the body drum part 10 is formed of an extruded material made of aluminum, the body drum part 10 is formed without a conventional roll bending work and longitudinal seam welding. This constitution facilitates assembly of the tank, eliminates a need for inspection of seal weld, and provides the body drum part which can be used as a pressure container with no weld part and is further solid.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an aluminum tank,
The present invention relates to an aluminum tank that can be used as an air tank used for an Anna lock brake system in trucks and other air brake systems.

[0002]

2. Description of the Related Art Conventionally, steel tanks are generally used as air tanks used in air brake systems for trucks and the like. In these air tanks, the body portion of the main body is formed into a cylindrical body by bending a plate material into a cylindrical shape by rolls and performing vertical seam welding, and the end plates are welded to both sides of the body portion to complete the tank.

[0003]

However, recently, due to various circumstances, there has been a demand for reducing the weight of trucks and the like to contribute to the regulation of exhaust gas and the improvement of loading capacity.
In addition, the number of vehicles equipped with the Anna Lock Brake System has been increasing recently, and this device requires 4 to 5 air tanks, compared with the conventional device that required 1 to 2 air tanks. The influence of the weight of the air tank is increasing. Further, in the conventional steel air tanks used for the air brake system of the above trucks and the like, the main body portion of the tank is constituted by the plate material by roll bending, but the roll bending work, the seam welding work and the post-welding work are performed. Post-processing such as deburring was an obstacle. In addition, it was necessary to inspect seam welding as a pressure vessel.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the problems of the conventional steel-made air tanks that require roll bending and seam welding, and provide an aluminum tank that is light and easy to manufacture.

[0005]

The aluminum tank of the present invention is an aluminum tank in which end plates are welded to both sides of a cylindrical main body, and the main body is extruded from aluminum. The first feature is that it is made of wood. In addition to the above-mentioned first characteristic, the aluminum tank of the present invention has, in addition to the above-mentioned first feature, a protruding pedestal portion having a flat top surface having a constant width over the entire length in the longitudinal direction extruded integrally with the main body portion. And a connection nozzle for connecting with an external pipe for introducing a fluid into the body barrel or outflowing a fluid from the body barrel is welded to the flat top surface of the protruding pedestal. It has a second feature. Further, in addition to the first characteristic, the aluminum tank of the present invention is such that, on the outer surface of the main body, a protrusion having a constant width over the entire length in the longitudinal direction is integrally formed with the main body by extrusion. A third feature of the present invention is that the projecting portion has a connection hole for connection with an external pipe for introducing a fluid into the main body portion or flowing out the fluid from the main body portion. The aluminum tank of the present invention, in addition to the above-mentioned first feature, is subjected to spatula processing or machining on the outer circumference of the main body to weld the outer wall of the main body in the circumferential direction. For forming a groove groove for use in the main body, and a ridge positioning guide is formed on the inner wall surface of the main body at the same longitudinal position as that of the groove, and a partition end plate for partitioning the internal space of the main body is positioned for the ridge. The fourth characteristic is that the positioning is performed by the guide and the welding is performed from the outside of the main body through the groove.

[0006]

According to the first feature of the present invention described above, since the main body body is made of the extruded material made of aluminum, it is possible to use a cylindrical shape from the beginning, without roll bending or vertical seam welding. The body barrel can be configured. Therefore, the assembly work of the tank is facilitated, the inspection of seam welding is not required, and a more solid main body portion having no welded portion can be obtained as the pressure vessel. In addition, the entire tank is made of aluminum, so the weight can be reduced. According to the second feature, in addition to the action of the first feature, the flat top surface of the protruding pedestal portion integrally formed on the outer surface of the main body by extrusion is connected to the external pipe. Since the connecting nozzle for the welding is welded, the mounting of the connecting nozzle is very easy and reliable. That is, since the cylindrical body body itself has an arc-shaped cross section, as in the conventional case, a hole for fluid inflow and outflow is formed directly through the wall surface of the body body having the arc-shaped cross section. Alternatively, it is not always easy to directly weld the connecting nozzle with the external pipe to the wall surface of the main body having an arcuate cross section, and there is a mounting defect,
There is a problem that the strength is likely to decrease. However, by forming a protruding pedestal part having a flat top surface by extruding together with the main body part from the beginning as in this feature, a hole for fluid inflow and outflow is provided in the flat surface of the protruding pedestal part, and the protruding pedestal is also formed. By welding the connection nozzle to the flat surface of the portion, their processing and attachment are facilitated and ensured. In addition, a decrease in strength near the attachment is also prevented. Further, according to the third feature, in addition to the action of the first feature, a connecting hole for connection that also functions as a hole for fluid inflow and outflow is provided on the protrusion formed integrally with the body barrel by extrusion. By providing the structure, the structure of the connecting means for connecting with the external pipe for inflowing and outflowing the fluid does not need to use welding means, etc., and is simpler, more reliable, and configured without causing strength reduction or the like. It Further, according to the fourth feature, in addition to the action of the first feature, the partitioning end plate for partitioning the inner space of the main body body is kept in contact with the ridge positioning guide on the inner wall surface of the main body body. It is positioned by being inserted, and at that position, it is welded from the outside of the main body along the groove. Therefore, the welding of the partition end plate is very easily and accurately performed by welding from the outside, and the tank in which the inner space of the main body is partitioned is easily and surely constructed.

[0007]

1 is a front view of an embodiment tank of the present invention, and FIG. 2 is a right side view of the embodiment tank of the present invention. FIG. 3 is a cross-sectional view of an essential part of a tank embodying the present invention, FIG. 4 is a cross-sectional view of an essential part of another embodying tank of the present invention, and FIG. 5 is an essential part of another embodying tank of the present invention. It is sectional drawing of a part.

In FIGS. 1 and 2, reference numeral 10 denotes a main body of the tank, and 20 denotes end plates welded to both sides of the main body 10. The main body portion 10 of the tank is made of an extruded material made of aluminum, and for example, an aluminum alloy of the 6000th generation such as 6063 alloy can be used. The end plate 20 is made of aluminum alloy such as 5083 alloy. The aluminum tank including the main body portion 10 and the end plate 20 is used as an air tank for supplying high-pressure air as needed as part of an air brake system for a truck or the like. By making the whole body of aluminum, the weight of the tank and the braking system can be reduced, and the body body is made of aluminum extruded material, eliminating the need for roll bending and vertical seam welding as in the past. Since the main body can be configured, therefore, the assembly work of the tank can be facilitated, the seam welding inspection is not required, and a more solid main body without a welded portion can be obtained as the pressure vessel.

On the outer surface of the main body portion 10, a protruding pedestal portion 11 having a constant width is integrally formed on the outer surface thereof by extrusion. One or a plurality of protruding pedestals 11 are provided as necessary, and the top surface thereof is a flat top surface 11a which is a plane perpendicular to the radial direction of the main body portion 10.
I am trying. The structure of the protruding pedestal portion 11 having the flat top surface 11a is an effective means for attaching the connecting nozzle 12 for connecting the outer pipe P (see FIG. 3). That is, in the protruding pedestal portion 11 extending in the longitudinal direction, at a position where the external pipe P (see FIG. 3) is to be connected, the flat top surface 11a is provided with a through hole 11b in the radial direction, and the through hole 11b is formed. The connecting nozzle 12 is attached to the main body portion 10 by welding the connecting nozzle 12 in the form of a short tube in a form of communicating with the flat top surface 11a. A short cylindrical inner hole of the connection nozzle 12 is formed with a female screw 12a, and a connection is made by screwing a male screw at the tip of the outer pipe P. The fluid is introduced into the tank from the external pipe P through the connecting nozzle 12 or flows out of the tank into the external pipe P through the connecting nozzle 12.

Since the top surface of the protruding pedestal portion 11 is the flat top surface 11a, the welding of the connecting nozzle 12 can be performed very easily and surely as compared with the case where the welding is performed on the arcuate surface. . Further, by making the flat top surface 11a of the protruding pedestal portion 11 a plane perpendicular to the radial direction, it is only necessary to make a hole at a right angle to the top surface 11a, and a flow hole that matches the tank radial direction.
11b can be configured easily and reliably. Further, by making the flat top surface 11a of the protruding pedestal portion 11 a plane perpendicular to the radial direction, the connection nozzle 12 can be simply and surely aligned and welded in the radial direction of the tank.

In the above embodiment, the protruding pedestal portion 11 is integrally formed on the main body portion 10 by extrusion, and the connecting nozzle is connected to this.
Although 12 is welded, FIG. 4 shows an example in which it is possible to easily connect and connect the external pipe P without welding a separate connecting nozzle 12. That is, in FIG. 4, the protrusion 15 having a constant width is integrally formed on the outer surface of the main body portion 10 over the entire length in the longitudinal direction. The protrusion 15 has a larger degree of protrusion than the protrusion pedestal 11 in the above-described embodiment.
The flat top surface 15a of 15 is a plane perpendicular to the radial direction of the main body 10. A connection hole 15b, which is a female screw hole for connection with the external pipe P, is provided at a position in the longitudinal direction selected for allowing the fluid to flow in and out of the flat top surface 15a. The connection hole 15b is formed in a direction perpendicular to the flat top surface 15a which is perpendicular to the radial direction of the main body portion 10, so that the connection hole 15b coincides with the radial direction of the main body portion 10. An external pipe P is provided in the connection hole 15b.
A male screw at the tip of is connected by screwing. As a result, the fluid is introduced into the tank from the outside or the fluid flows out from the tank to the outside. As above, the protrusion
15 is extruded and formed integrally with the main body 10, and the protrusion 15
By providing the connection hole 15b in the, the connecting means with the external pipe P can be configured very simply.

As shown by the broken line in FIG. 1, the space inside the main body portion 10 of the tank may be partitioned by a partitioning end plate 30 so as to have a plurality of chambers in the longitudinal direction, if necessary. Although it is possible, the partition end plate 30 is attached to a structure as shown in FIG. That is, the main body 10
Corresponding to the longitudinal partition position of the inner space of the body, the outer wall surface of the main body portion 10 is recessed by a spatula drawing or machining to form a groove groove 16 for welding in the circumferential direction and the main body same portion 10 The inner wall surface of the ridge is projected to form the ridge positioning guide 17, and the ridge positioning guide 17 is attached to the ridge positioning guide 17.
The groove 30 is positioned by being inserted until the outer peripheral end face 31 of the groove contacts, and the groove 30 is positioned from the outside of the main body 10.
By welding along 16, the main body portion 10 and the partition end plate 30 on the inside are welded from the outside and fixed. By providing a groove groove 16 and a ridge positioning guide 17 at the same time and corresponding to the same position by a spatula drawing process or a machining process for a longitudinal position to be partitioned,
Positioning of the partition end plate 30 within the main body portion 10 becomes very easy. And by performing the back side welding by welding from the outside along the groove 16, it is possible to construct a tank in which the partition end plate 30 is reliably welded without performing difficult welding in the main body portion 10. can do.

[0013]

According to the present invention, which has the above-described structure,
According to the aluminum tank described in (1), since the main body portion is made of the extruded aluminum material, a cylindrical main body portion can be formed from the beginning without roll bending or vertical seam welding. Therefore, the assembly work of the tank becomes easy,
No seam welding inspection is required, and a more rigid body body without welds can be obtained as a pressure vessel. Further, since the entire tank is made of aluminum, it can be made lightweight enough to be mounted on a truck or the like. According to the aluminum tank of claim 2, the aluminum tank according to claim 1
In addition to the effect of the above, the protruding pedestal part with a flat top surface is extruded integrally with the main body part, and the connecting nozzle for connecting to the external pipe is welded to this Even when compared to the above case, drilling and welding attachment of the connecting nozzle become very easy and reliable, and reduction in strength near the nozzle attachment is prevented. According to the aluminum tank of claim 3, in addition to the effect of the structure of claim 1, the protrusion is formed integrally with the body barrel by extrusion, and a connection hole for connection with an external pipe is formed in the protrusion. Therefore, the structure of the connecting means for inflow and outflow of the fluid can be formed very easily, reliably and firmly. According to the aluminum tank of claim 4, in addition to the effect of the configuration of claim 1, the tank whose internal space of the main body is partitioned can be easily and surely without difficult welding. Can be configured.

[Brief description of drawings]

FIG. 1 is a front view of an implementation tank of the present invention.

FIG. 2 is a right side view of an implementation tank of the present invention.

FIG. 3 is a sectional view of an essential part of the tank of the present invention.

FIG. 4 is a cross-sectional view of a main part showing an example of another embodiment tank of the present invention.

FIG. 5 is a cross-sectional view of a main part showing an example of still another embodiment tank of the present invention.

[Explanation of symbols]

 10 Main body 11 Projection pedestal 11a Flat top surface 12 Connecting nozzle 15 Projection 15b Connection hole 16 Groove for welding 17 Convex positioning guide 20 End plate 30 End plate for partition P External pipe

Claims (4)

[Claims] 1. An aluminum tank which is formed by welding end plates to both sides of a cylindrical main body, wherein the main body is made of an extruded aluminum material. 2. A projecting pedestal having a flat top surface of a constant width over the entire length in the longitudinal direction is formed on the outer surface of the body trunk by extrusion integrally with the body trunk, and the flat top surface of the projecting pedestal is formed. The aluminum tank according to claim 1, wherein a connection nozzle for connecting with an external pipe for introducing a fluid into the main body portion or flowing out the fluid from the main body portion is welded. 3. A protrusion having a constant width over the entire length in the longitudinal direction is formed on the outer surface of the main body by being extruded integrally with the main body, and a fluid is introduced into the main body from the projection. 2. The aluminum tank according to claim 1, wherein a connection hole for connection with an external pipe for letting out a fluid from the inside of the main body is formed. 4. A groove for welding is formed in a circumferential direction on an outer wall surface of the main body body by subjecting the outer periphery of the main body body to spatula machining or machining, and at the same time, A ridge positioning guide is formed on the inner wall surface at the same longitudinal position as the groove, and a partition end plate for partitioning the inner space of the body barrel is positioned by the ridge positioning guide and is opened from the outside of the body barrel. The aluminum tank according to claim 1, which is welded through a groove.