RU2488782C2 - Body of wing feeder and method of its manufacturing - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: group of inventions comprises a body of a wing feeder, comprising an open cylindrical shell, bottoms made with holes and welded to the shell, at the same time the cylindrical shell is connected with bottoms by a welded joint between the inner surface of the shell and the outer surface of the bottoms, and also the method of its manufacturing. In process of body manufacturing they install bottoms relative to each other on a rotation shaft. The open cylindrical shell is manufactured and installed by means of rolling of a metal sheet and its installation relative to the bottoms with provision of contact of its inner surface with edges of the bottoms and subsequent bracing of the sheet. Bottoms are connected with the shell by means of the welded joint between the inner surface of the shell and the outer surface of the bottoms.

EFFECT: improved manufacturability of design of a wing feeder body due to simplification of the method of its manufacturing, with high accuracy of body shell manufacturing and reduction of its weight, namely, the method of wing feeder body manufacturing differs by simplicity and makes it possible to manufacture a body of light and geometrically accurate design.

2 cl, 4 dwg

Description

The invention relates to blowing equipment used to pump heat and sound insulation into building structures, in particular, to feeders for transporting bulk materials through zones with different pressures.

Known body dispenser of bulk materials (patent RU 1672223, publ. 1991), containing a closed cylindrical shell with blades on the inner surface. At the ends of the shell there are bottoms with holes for the axis of rotation of the housing and with inlet and outlet openings for the material to be moved. The bottoms touch their edges with the inner surface of the shell and are connected to it by a welded outer seam.

The housing design provides a method for its manufacture, including the following sequence of operations: manufacturing a closed cylindrical shell and bottoms, installing the bottoms inside the cylindrical shell and connecting the bottoms to the cylindrical shell with an external weld.

The known housing design does not provide for the possibility of moving the material through zones with different pressures. The method of manufacturing the housing does not allow to manufacture the design of the housing with an open shell, which is used when moving material through zones with different pressures.

Closest to the claimed invention is a blade feeder housing. designed to move material through zones with different pressures (Owners manual fiber moving machine model # 500, KRENDL Machine Com., U.S.A., 2007, p. 12). The housing contains an open cylindrical shell, the upper open ends of which are connected to the walls of the input channel for the material to be moved. The ends of the shell are welded to the bottoms by a weld between the outer surface of the shell and the inner surface of the bottoms. The bottoms are made with holes coaxial to the axis of rotation. In this case, one bottom is made with an additional hole for blowing air, and the other bottom is with an additional hole for blowing air together with the material to be moved.

The design of the blade feeder housing determines the method of its manufacture. including: installing the bottoms in parallel and at a predetermined distance relative to each other on a rotation shaft with auxiliary disks; the manufacture and installation of an open cylindrical shell by rolling a metal sheet to give it an approximate shape to the cylinder, and installing a metal sheet relative to the bottoms, followed by a screed of the sheet. Before the screed, the metal sheet is installed on the auxiliary disks between the bottoms to ensure that the edges of the sheet contact the inner surface of the bottoms. After the coupler, the ends of the shell are connected with the bottoms by a weld between the outer surface of the shell and the inner surface of the bottoms.

Given the warping of the ends of the shell during welding and ensuring a stable position of the open shell on the flat surface of the bottoms, a relatively large thickness of the shell (3-4 mm or more) is necessary, which complicates the bending of the sheet in the manufacture of the shell and increases its weight. When screeding a metal sheet, auxiliary composite disks of complex design are used. The above disadvantages reduce manufacturability and increase the cost of the known design of the hull.

The technical effect of the invention is to improve the manufacturability of the design of the blade feeder housing by simplifying the method of its manufacture, with high precision manufacturing of the shell of the housing and reducing its weight.

To achieve a technical effect in the case of a blade feeder containing an open cylindrical shell, bottoms made with holes and welded to the shell, the cylindrical shell is connected to the bottoms by a weld between the inner surface of the shell and the outer surface of the bottoms.

A method of manufacturing a blade feeder housing, includes installing the bottoms relative to each other on a rotation shaft, manufacturing and installing an open cylindrical shell by rolling a metal sheet, installing it relative to the bottoms, followed by screed sheet. The bottoms are connected to the shell with a weld. Before the screed, the metal sheet is installed to ensure that its inner surface contacts the edges of the bottoms. After the coupler, the bottoms are connected to the shell with a weld between the inner surface of the shell and the outer surface of the bottoms.

The use of the bottoms of the housing as devices instead of auxiliary disks when screeding a metal sheet simplifies the manufacture of the housing by reducing the installation and removal of auxiliary composite disks. At the same time, rigid bottoms provide greater accuracy in the manufacture of the shell compared to auxiliary disks, which is an important design indicator for blade feeders.

When installing the shell relative to the bottoms of the shell, the inner surface of the shell is in contact with the edges of the bottoms, which makes it possible to use a thinner metal sheet to facilitate stability of the mutual arrangement of the shell and the bottoms and facilitates its rolling. The location of the weld between the inner surface of the shell and the outer surface of the bottoms eliminates warping of the shell during welding, which also reduces the required thickness of the shell.

Thus, the proposed combination of features makes it possible to manufacture a blade feeder housing in a simpler and, accordingly, cheaper way, to increase manufacturing accuracy and reduce the weight of the shell shell.

Figure 1 presents the claimed housing of the blade feeder.

Figure 2 presents the bottom of the housing mounted on the auxiliary shaft through a cylindrical device.

Figure 3 presents the metal sheet of the shell and the bottom of the housing located in the clamping device.

Figure 4 presents the assembly of the clamping device.

The blade feeder housing contains a bottom 1, an open cylindrical shell 2, the upper open end of which is connected to the wall 3 of the inlet channel for the material to be moved (Fig. 1). The bottoms 1 with the edges 4 are conjugated with the inner surface 5 of the shell 2 and connected to it by an external weld 6 between the inner surface of the shell and the outer surface of the bottoms. In the bottoms of the housing there are holes 7 for setting the axis of rotation and a hole 8 for blowing air and an outlet 9 (Fig. 1) for blowing air together with the material being moved.

A method of manufacturing a blade feeder housing includes the following operations. The bottom 1 of the housing is installed through a cylindrical device 10 on the auxiliary shaft 11 together with washers and nuts to ensure parallelism and alignment. the mutual arrangement of the bottoms in the housing of the feeder (figure 2). In the clamping device 12, a pre-rolled metal sheet of the shell 2 and the bottom 1 with a cylindrical device 10 on the shaft is arranged (Fig. 3). Next, the coupling device 12 is assembled and, using bolts 13, the metal sheet of the shell 2 is coupled until the edges 4 of the bottoms 1 come in contact with the inner surface 5 of the open cylindrical shell 2 along the entire length of its generatrix (Fig. 4). The shell 2 is connected with the bottoms 1 with an external weld 6 (Fig. 1). Due to the location of the outer seam 6 between the inner surface of the shell 5 and the outer surface of the bottoms during welding, the shell of the body is not warped, which allows it to be made thinner. The absence of complex components inside the manufactured housing excludes the operation of disassembling and removing them. A simple cylindrical fixture is easy to remove.

The proposed method for manufacturing a blade feeder housing is simple and makes it possible to manufacture a housing of a lighter and geometrically accurate design.

Claims (2)

1. The housing of the paddle feeder, containing an open cylindrical shell, bottoms made with holes and welded to the shell, characterized in that the cylindrical shell is connected to the bottoms by a weld between the inner surface of the shell and the outer surface of the bottoms. 2. A method of manufacturing a blade feeder housing, including installing the bottoms relative to each other on a rotation shaft, manufacturing and installing an open cylindrical shell by rolling a metal sheet and installing it relative to the bottoms, followed by a sheet tie, connecting the bottoms to the shell with a weld, characterized in that before the metal sheet is installed with a screed to ensure that its inner surface contacts the edges of the bottoms, connect the bottoms to the shell with a weld between the inner surface of the shell and the outer surface of the bottoms.

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