JP2532983Y2 - Liners in centrifugal abrasive projection equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a liner surrounding an impeller in a centrifugal projection device for centrifugally projecting abrasive grains.

[0002]

2. Description of the Related Art Generally, an impeller in a centrifugal projection apparatus for centrifugally projecting abrasive grains is surrounded by a liner made of abrasion-resistant cast steel, and this liner is conventionally divided into a plurality of inverted boxes. The cover is detachably attached to the inner surface of the cover by bolts. Therefore, when replacing the entire liner, the components of the liner must be removed or attached from the inner surface of the cover, which is very troublesome. In addition, when the impeller is disposed in the cleaning room, the cover needs to have a special shape, so that there is a problem that the liner also needs to be special. in addition,,
Since the cover is made of cans, the components of the liner cannot be assembled with high precision, and a gap is created between the joints of the components of the liner.As a result, the projected abrasive particles leak from the gap. There were also problems such as colliding with the cover and causing the cover to wear out early. The present invention has been made to solve the above problems.

[0003]

In order to achieve the above object, a liner according to the present invention has a liner main body having a vertical cross section and a detachably attached to the horizontal end of the liner main body by bolts. With a plate-shaped lid liner
The vertical cross section has an inverted U shape as a whole.

[0004]

With the above construction, a plate-shaped lid liner is attached to the horizontal end of the liner body with bolts.
After assembling into a liner having an inverted U-shape in vertical section as a whole, the liner is attached to a predetermined location in a cantilevered state by bolts in the liner body.

A first embodiment of the present invention will be described below with reference to FIGS. 1 to 3. As shown in FIG. 1 which is a partial cross-sectional front view, a common base 17 is provided on the upper surface of a cabinet 1 constituting a cleaning chamber. The impeller 4 is attached to the output shaft of the electric motor 2 installed via the hub 3 via the hub 3.
The impellers 4 face each other at a required interval and
Two rotating plates 21, 21 concentrically integrated with each other;
These two rotating plates 21 and 21 are centered on these centers.
Blades 22, 2 mounted radially
And 2. An inverted box-shaped liner 5 surrounding the impeller 4 is provided around the impeller 4.
The liner 5 is detachably attached to the inner surface of the inverted box-shaped cover 6 installed on the common base 17. As shown in FIG. 1, the liner 5 has the impeller 4
Holes 23 large enough to allow passage of rotating plates 21
Have been. The liner 5 has a liner body 8 having a vertical cross-section having an inverted Γ shape, and is detachably attached to the cover 6 via bolts 7 in a cantilevered manner.
It comprises a plate-shaped lid liner 10 detachably attached to the horizontal left end of the liner body 8 via bolts 9, 9, and has a vertically inverted U-shaped vertical cross section as a whole. As shown in FIG. 3, the liner body 8 and the lid liner 1
0 is divided into a plurality of pieces, and the liner body part 8a
8f, the lid liner parts 10a and 10b, and the gauge insertion bracket 18. And gauge insertion
The input bracket 18 closes the hole 23.
ing. The cover 6 also includes a cover body 11 having a vertical cross-section in the shape of an inverted triangle, and a bolt 1 on the left end of the cover body 11.
It is composed of a plate-like lid cover 13 which is detachably attached via the second and the second 12 (see FIG. 1). In the drawing, 14 is a distributor, 15 is an introduction tube, and 16 is an introduction tube.

[0006] The above-mentioned structure is supplied when the impeller 4, the distributor 14 and the like are rotated by driving the electric motor 2 and then the abrasive grains are supplied from the introduction pipe 16 to the distributor 14 via the introduction cylinder 15. The abrasive grains are centrifugally projected by the impeller 4 in the same manner as in this type of conventional apparatus, but when replacing the liner 10, first loosen the bolts 12 and 12 to remove the lid cover 13 and then remove the bolt 9 , 9 to remove the lid liner 10 from the liner body 8 or to replace the liner 5, the bolts 7, 7 are loosened to remove the liner body 8 from the cover body 11. In order to attach the liner 5 to the cover 13, the above operation may be performed in reverse. Further, when the liner 5 is installed in the cover 13 at one time, the cover liner 10 is attached to the liner body 8 to form an inverted U-shape as a whole, and then the liner body 8 is attached to the cover body 11. Although the liner 5 is attached to the inner surface of the cover 6 in the above-described embodiment, the liner 5 is directly attached to the inner surface of the cabinet 1 by bolts 18 as shown in FIG. Is also good. Further, the liner body 8 and the lid liner 10 of the liner 5 do not have to be divided. In addition, liner 10
As a matter of course, when the entire apparatus is mounted upward on the bottom of the cabinet or the like, the vertical cross section naturally forms a U-shape.

[0007]

[Effect of the Invention] As is clear from the above description, the present invention comprises a liner having a liner body having a vertical cross section and a lid liner attached to a horizontal end of the liner body by bolts. As a result, the liner can be mounted in a predetermined position in a cantilevered support state by bolts in the liner body, so that the liner can be extremely easily assembled and mounted, and the cover provided in the cleaning chamber can be easily mounted. Even an impeller can be easily surrounded. In addition, since the lid liner is directly attached to the liner body via bolts, there is no gap at their joints,
An excellent practical effect is obtained, such as that the projected abrasive grains do not collide with the cover and the cover is not worn away at an early stage.

[Brief description of the drawings]

FIG. 1 is a sectional front view of an embodiment of the present invention.

FIG. 2 is a view taken along the line AA in FIG. 1;

FIG. 3 is an exploded perspective view of a main part of one embodiment of the present invention.

FIG. 4 is a partial cross-sectional front view of another embodiment of the present invention.

[Explanation of symbols]

 8 Liner body 9 Bolt 10 Lid liner

Claims (1)

(57) [Scope of request for utility model registration] 1. A liner surrounding an impeller in a centrifugal projection device for centrifugally projecting abrasive grains, wherein a liner main body 8 having a vertical cross section having a Γ shape, and a bolt 9 at a horizontal end of the liner main body 8, 9 and a plate-like lid liner 10 detachably attached by the same 9 so that the longitudinal section as a whole is inverted U
And the lid liner 10 is
4. The lid liner parts 10a and 10b each having a hole 23 of a size through which the rotary plates 21 and 21 can pass , and the hole 23 is closed.
A liner in a centrifugal projection device for abrasive grains, comprising: