JPS5917416Y2 - rotor spray machine - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement of a complete rotor spray machine.

There is a complete rotor spraying machine as a means for dry spraying materials such as furnace materials and concrete, and its structure is generally a rotary mill with many cylindrical holes 42 vertically arranged around the circumference as shown in Fig. 1, and a rotor 40. A hopper 43 is provided on the upper part of the machine via the machine side upper plate 24, a machine side nozzle 44 is provided on the machine side lower plate 35 below the rotor, and a material drop hole 45, an air injection hole 46 and Circumferential direction between them −
Exhaust holes 47 are provided at several locations, and the lower plate 35 on the machine side is provided with a material passage hole 48 that matches the machine side nozzle 44, and an exhaust hole 49 is provided at one location apart from the material passage hole 48.
When the cylindrical hole 42 and material drop hole 45 match, material A is filled from the hopper 43 into the cylindrical hole 42, and then the material A is filled into the cylindrical hole 42.
When the machine side nozzle 44 communicates with the machine side nozzle 44, compressed air from the air injection hole 46 sends out the material in the cylindrical hole to the machine side nozzle 44, and the compressed air blown into this machine side nozzle 44 forces the material. After that, the remaining air in the hole was discharged to the outside from the exhaust hole 47.49.

However, if operation is performed with the above structure, the machine side upper/lower plate (24.35) and the upper and lower end surfaces of the rotor 40 will come into contact with metal, resulting in poor sealing and expensive main parts. impairs the durability of

Therefore, friction plates 411, 41 are placed on the upper and lower end surfaces of the rotor 40.
At the same time, an upper seal rubber plate 53 and a lower seal rubber plate 54 are fixed to the machine side upper plate 24 and machine side lower plate 35 via the iron plates 51 and 52, respectively, and the upper seal rubber plates 51 and 52 are fixed to the machine side upper plate 24 and the machine side lower plate 35. 53 and the lower seal rubber plate 54, the friction plates 411 and 421 are brought into close contact with the rotor seal.

However, in such a rotor seal structure, one side of the upper seal rubber plate 53 and the lower seal rubber plate 54 is the iron plate 51.
．． 52, the sealing surface that can be used is limited to one side. Therefore, if the sealing surface becomes worn due to use of the machine, complicated and costly polishing must be performed. Even if such repair is performed, it is difficult to overcome the deformability and restore the accuracy of the seal plate, and there is a drawback that a good sealing effect cannot be expected in spite of the high cost.

Instead of this method, several spare seal plates are prepared and replaced with new seal plates as wear progresses, but this type of seal plate is made of highly wear-resistant material and It is an extremely expensive part that requires additional man-hours to bake a precision-finished iron plate.

As a result, a rise in running costs could not be avoided.

The present invention aims to solve the above-mentioned problems of the conventional rotor set spraying machine, and its purpose is to make it possible to use both sides of a single seal plate as a sealing surface, thereby making it possible to The aim is to reduce the running costs of spray machines.

For this purpose, the present invention has developed an upper seal plate in which the material drop hole, air injection hole, and exhaust hole are formed line-symmetrically with respect to the circular half-cut line, and the upper and lower surfaces are formed line-symmetrically with the board thickness center line as the boundary. Similarly, the lower seal plate, in which the material drop hole and the exhaust hole are formed line-symmetrically with the circular half-cut line as the border, and the upper and lower surfaces are formed line-symmetrically with the plate thickness center line as the border, is fixed to the machine body to form a plate-shaped retainer. The upper and lower seal plates are each clamped and fixed between the plate-shaped holder and the retaining ring, and when the surface that slides on the rotor is worn, the seal plates are turned upside down and assembled. This makes it possible to immediately restore good sealing performance.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a complete rotor spraying machine according to the present invention will be described below with reference to the accompanying drawings.

In FIGS. 2 and 3, numeral 1 is an upper sealing plate, in which a material drop hole 10, an air injection hole 11, and two exhaust holes 12a, 12b are arranged in line symmetry with respect to the circular half-cut line A-A in the plane. A central recessed portion 15.15' is recessed at the same depth from the upper surface 14 and the lower surface 14', respectively, around the central rotating shaft insertion hole 13 and at the outer edge in the longitudinal section.
and an outer circumferential recessed portion 16.16'.

On the other hand, in FIGS. 4 and 5, 2 is a lower seal plate, in which a material drop hole 17 and two exhaust holes 18a and 18b are formed line-symmetrically with the circular half-cut line B-B as a boundary in the plane. Moreover, in the longitudinal section, a central recess 21.21' and an outer circumferential recess 22.22' are recessed at equal depths from the upper surface 20 and lower surface 20', respectively, around the central rotating shaft insertion hole 19 and at the outer edge. The upper seal plate 1
and the central recessed portions 15.15' and 21.2 of the lower seal plate 2.
1' and the outer peripheral recessed parts 16, 16', 22.22',
Screw insertion holes 23a, 23b, 23 at required intervals
C, 23d are arranged.

In FIGS. 6 and 7, 3 indicates the machine side upper plate 24.
It is a disc-shaped upper holder attached to the lower surface, and is located at the same position as the upper seal plate 1 and the machine side upper plate 24, and has a material drop hole 10', an air injection hole 11', and an exhaust hole 12a of the same size. ' and a center rotation shaft insertion hole 27.
A central recess 15. of the upper sealing plate 1 around and at the outer edge.
15' and an outer peripheral recessed part 16.16'.
5' and the outer peripheral recess 16 or 16', the upper seal plate 1 is attached to the upper holder 3, and the rotating shaft is inserted into the central recess 15' or 15 on the opposite side of the upper holder 3. While fitting the upper inner ring 4 having the hole 28,
The upper outer ring 5 is fitted into the outer peripheral recessed part 16 or 16', and the upper inner ring 4 and upper outer ring 5, and the central convex part 25 and outer peripheral convex part 26 of the upper holder 3 are fitted with the upper seal, respectively. Screw insertion holes 29 a, 29 b are spaced at the same distance as the screw insertion holes 23 a, 23 b of the plate 1.

29C and 29d, and insert screw 33 into these screw insertion holes.
The upper seal plate 1 is fixed under pressure by passing through the hole and screwing it into a screw hole provided in the upper plate 24 on the machine side.

On the other hand, on the lower surface of the machine side lower plate 35, as shown in FIGS. 6 and 8, there is a material drop hole 17 that matches the lower seal plate 2.
A disk-shaped lower holder 6 having an exhaust hole 18a' and an exhaust hole 18a' is positioned, and this lower holder 6 also has a central recess 21, 21' of the lower seal plate 2 around the rotary shaft insertion hole and at its outer edge.
and a central convex portion 31 corresponding to the outer peripheral concave portion 22, 22'
and an outer circumferential convex part 32 are formed, and the central concave part 21 or 21' and the outer circumferential concave part 22 or 22' are fitted into the central convex part 31 and the outer circumferential convex part 32, and in this state, the central concave part The lower inner ring 7 is placed in the central recess 21' or 21 on the opposite side.
Also, the outer circumferential recessed part 22' or 2 on the opposite side to the outer circumferential recessed part
The lower seal plate 2 is clamped by fitting the lower outer tongue 8 into the lower seal plate 2 and screwing the hiss 33 passed through the screw insertion holes 34a, 34b, 34C, and 34d provided at the same positions into the machine side lower plate 35. Fixed.

In addition, the present invention forms a surrounding part 37 on the upper surface of the holder 3 as shown in FIG. A flange 39 of a protector 38 is attached to this surrounding portion 37, and the half-cylindrical portion 39 is fitted into the material drop hole 10 of the upper seal plate 1.

Although not shown, the lower seal plate 2 also has a similar configuration.

In other countries, 40 is a rotor, and 411 and 412 are friction plates attached to the upper and lower end surfaces of the rotor 40.

Since the present invention has the above configuration, the hopper 43
The material A fed into the machine is passed through the material drop hole 45 of the machine side upper plate 24, the material drop hole 10' of the upper holder 3 and the upper seal plate 1, and the cylindrical hole 4 of the rotor 40 that rotates through the material drop hole 45 of the machine side upper plate 24.
2 is sequentially filled, and then moved in the circumferential direction with the upper and lower sides closed by the upper seal plate 1 and the lower seal plate 2, and the cylinder hole 42 reaches the position of the air injection holes 46.11' and 11. , when these communicate with the cylindrical hole 42 and the machine side nozzle 44, the material A is pressed by compressed air and passes through the machine side nozzle 44.
and is pumped into the hose.

The compressed air remaining in the cylindrical hole 42 that has become empty in this way is removed by the rotation of the rotor 40 and the cylindrical hole 42 is discharged into the exhaust holes 18a, 18a'.
During such material pumping action, the upper seal plate 1 and the lower seal plate 2 always slide closely relative to the friction plates 411 and 421 of the rotor 40. .

Therefore, due to continuous operation, upper seal plate 1 and lower seal plate 2
However, in the present invention, the upper seal plate 1 and the lower seal plate 2 are symmetrical in plane and cross section, and this is achieved by screw 3.
3, the upper holder 3, the lower holder 6 and the inner ring 4
, 7, clamped with outer rings 5 and 8, and played on the machine side) 24.
It is fixed at 35.

Therefore, if the sealing surfaces of the upper sealing plate 1 and the lower sealing plate 2 are worn out, for example, the upper surface 14.20, the screw 33
If you loosen the inner rings 4, 7 and outer rings 5, 8, the upper seal plate 1 and lower seal plate 2 will be free.
If the top and bottom of the upper seal plate 1 and lower seal plate 2 are reversed, and the inner rings 4, 7 and outer rings 5, 8 are installed and tightened again, the new seal surfaces, for example, flat surfaces 14', 20', will become friction plates 411, 421, and the operation can be started immediately.

In addition, there is a central recess 1 in the upper seal plate 1 and the lower seal plate 2.
5.15', 21.21' and outer circumference recessed part 16.16'
, 22°22', it is possible to increase the thickness of the parts that are prone to wear, and it is possible to perform the sealing surface rearrangement work extremely easily without causing any positional deviation.

According to the present invention described above, the friction plate 4 of the rotor 40
Upper seal plate 1 and lower seal plate 2 in contact with 11,421
are configured line-symmetrically in plane and cross section, and the upper seal plate 1 and lower seal plate 2 are respectively held by upper and lower holders 3, 6 and rings 4.5.7°8 and fixed to the machine side. This makes it possible to use both sides of a single seal plate as a sealing surface, and it is also extremely easy to rearrange the sealing surfaces.The economical use of such an expensive sealing plate reduces running costs. An excellent effect can be obtained in that it is possible to reduce the

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view schematically showing a conventional rotor set spray machine;
Fig. 2 is a plan view of the upper seal plate in the rotor set spraying machine of the present invention, Fig. 3 is a sectional view thereof, Fig. 4 is a plan view of the lower seal plate, Fig. 5 is a sectional view thereof, and Fig. 6 7 is a plan view of the upper holder in the invention, FIG. 8 is a plan view of the lower holder, and FIG. 9 is a sectional view of the protector attachment part in the invention. FIG. 3 is a partial cross-sectional view showing the structure. In the figure, 1 is an upper seal plate, 2 is a lower seal plate, and 3 is a lower seal plate.
is the upper holder, 4 and 7 are the inner rings, 5゜8 is the outer ring,
6 is the lower holder, 10.17 is the material drop hole, 11 is the air injection hole, 12 a, 12 b, 18 a, 18 b
is the exhaust hole, 14.14' is the upper and lower surfaces of the upper seal plate, 20
20' indicates the upper and lower surfaces of the lower seal plate.

Claims (1)

[Scope of utility model registration request] The material drop hole, air injection hole, and exhaust hole are formed line-symmetrically with the circular half-cut line as the border, and the upper seal plate has the upper and lower surfaces formed line-symmetrically with the plate thickness center line as the border, and the material drop hole and the exhaust hole are also formed. The lower seal plates are formed line-symmetrically with a circular half-cut line as a boundary, and the upper and lower surfaces are line-symmetrically formed with a plate thickness center line as a boundary, and each is attached to a plate-shaped holder fixed to the machine body, and the plate-shaped holder is attached to the plate-shaped holder. A complete rotor spraying machine characterized in that the upper and lower seal plates are respectively clamped and fixed by a tool and a ring.