JPH049097B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rotor for a particle shape adjuster, an impact crusher, etc., which discharges a material to be processed fed from above horizontally in a tangential direction. .

[Prior Art] Conventionally, as the above-mentioned vertical shaft type rotor, for example, the rotor of a crusher disclosed in Japanese Patent Publication No. 53-33785 is known.

This rotor is connected to the upper end of a vertical rotating shaft rotated by an electric motor, and has a rotor body equipped with a radial discharge path having a pocket on the rear side in the direction of rotation, and a rotor body provided with a radial discharge path that has a pocket on the rear side in the rotation direction, and a rotor body that is connected to the upper end of a vertical rotating shaft rotated by an electric motor. a side liner (tip blade) and a bottom liner (anti-wear plate) provided on the side and bottom surfaces; an upper lid provided on the top of the rotor body and provided with an inlet in the center for introducing the material to be treated into the discharge path; It is generally composed of a rotor that is introduced into the discharge path from the inlet, accelerated by centrifugal force, and discharged horizontally from the discharge port. Reduced by bottom liner.

[Problems to be Solved by the Invention] However, in the conventional rotor described above, since the side liners and the bottom liner are fixed with bolts, replacing these liners is troublesome and requires a lot of work time. There are problems such as the need for

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a rotor for a grain shape adjuster, etc., in which the liner can be fixed without using bolts and can be replaced easily and in a short time.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the rotor of the grain shape adjusting machine, etc. of the present invention is a grain shape regulating machine that discharges the processed material fed from above horizontally in a tangential direction. a disc-shaped rotor body connected to the upper end of a vertical rotating shaft rotated by an electric motor, and equipped with a radial discharge path that gradually narrows on the discharge port side;
A bottom liner that is provided in approximately the same shape as the bottom surface of the discharge passage, and is arranged on the bottom surface, and a groove provided on the back surface is engaged with a vertical protrusion provided on the rotor body, and an engagement provided on the lower end. A side liner is provided on at least one side of the discharge passage in the vicinity of the discharge opening by inserting a protrusion between the side surface of the discharge passage and the bottom liner, and a side liner is provided on at least one side of the discharge passage in the vicinity of the discharge opening, and the side liner is removably provided on the upper part of the rotor body and covers the discharge passage. The upper lid has an inlet port for introducing the processed material in the center, and an engaging protrusion that is provided in approximately the same shape as the lower liner and is provided at the upper end of the side liner and is sandwiched between the side surface of the discharge path and the upper lid. and an upper liner attached to the top liner.

[Function] The bottom liner is prevented from moving in the horizontal direction by having a shape similar to the bottom surface of the discharge path where the discharge port side is narrower, and the side liner is prevented from moving in the vertical direction by grooves provided on the back surface of the rotor body. Horizontal movement is prevented by inserting an engaging protrusion that engages the protrusion and is provided at the lower end between the side surface of the discharge channel and the lower liner. By sandwiching the engagement protrusion provided at the upper end of the side liner between the upper liner attached to the upper lid and the side surface of the discharge path, vertical movement of the lower liner and the side liner is prevented.

Furthermore, by removing the top cover from the rotor body, the bottom liner and side liners can be moved freely in the vertical and horizontal directions.

[Example] A first example of the rotor of the particle shape adjuster of the present invention will be described below.
This will be explained with reference to FIGS.

FIG. 1 is a longitudinal cross-sectional view of a grain shape adjusting machine equipped with a rotor according to the present invention. This is a machine that adjusts artificial aggregate into a rounded particle shape similar to that of aggregate.

In the figure, reference numeral 1 denotes a bottomed cylindrical lower housing with a discharge port 2 provided at the center of the bottom, and is placed vertically on a pedestal (not shown). At the upper end of the lower housing 1,
A hollow disk-shaped upper housing 4 is connected to the inside of the lower housing 1 through a lower opening 3. The upper housing 4 is provided so that its upper part can be removed, and an annular polishing chamber 5 is provided in the periphery of the interior thereof.

The annular polishing chamber 5 is for forcing the material to be ground (not shown), which is the material to be processed and released from the rotor described later, to flow in an arc shape from the bottom to the top. A lower repulsion guide plate 6 in the shape of an annular plate attached to the bottom of the upper housing 4 with a conical surface with a required inclination angle that does not form a hardened body; A cylindrical side repulsion guide plate 7 standing upright along the side inside the housing 4 and a side repulsion guide plate 7
It consists of an annular plate-shaped upper repulsion guide plate 8 with a concave curved surface attached to the ceiling in the upper housing 4 facing the lower repulsion guide plate 6 so as to be connected to the upper end, and the upper repulsion guide plate 8 is as follows: It is composed of segments divided in the radial direction from the center side into a vertical inner peripheral part 8a, a horizontal ceiling part 8b, and an inclined outer peripheral part 8c.

On the other hand, a vertical rotating shaft 9 is disposed at the center of the lower housing 1 by means of a bearing 10, a bearing housing 11, and a bracket 12, with its upper end facing the annular polishing chamber 5. A rotor 13 having an appropriately small outer diameter is connected to the upper end of the vertical rotating shaft 9 through the lower opening 3 of the upper housing 4 . The rotor 13 applies a centrifugal force to the material to be ground supplied from a supply pipe, which will be described later, and discharges the material horizontally in a tangential direction toward the lower repulsion guide plate 6, and is configured as follows. That is, the rotary table 14 is fitted to the upper end of the vertical rotation shaft 9 by a boss portion 14a. As detailed in FIGS. 2 and 3, on the rotary table 14, there is a diametrical discharge path 16 having discharge ports 15 at two opposing locations on the circumference that oppose the lower repulsion guide plate 6. A hollow disc-shaped rotor main body 17 with a rotor body 17 is placed thereon, and a truncated cone-shaped distributor 1 for distributing the material to be ground is placed between both discharge passages 16.
8 is attached with bolts 19. The discharge path 16 has both side surfaces arranged symmetrically with respect to the radius, and is gradually narrower near the discharge port 15. A bottom liner 20 and side liners are removably provided on the bottom surface of the discharge path 16 and on both sides near the discharge port 15. The bottom liner 20 is provided in substantially the same shape as the bottom surface of the discharge path 16 to prevent movement in the horizontal direction.
1 inserts the engagement protrusion 21a provided at the lower end between the bottom liner 20 and the side surface of the discharge path 16,
Further, horizontal movement is prevented by engaging the groove 21b provided on the back surface with the vertical protrusion 17a provided on the rotor main body 17. Further, inner side liners 22 are attached to both inner side surfaces of the discharge passage 16 by fasteners 23 such as bolts and nuts. On the upper part of the rotor body 17, there is a circular plate-shaped upper cover 25 with an inlet 24 for the material to be ground in the center, and a gasket 26 made of rubber or the like.
A fastener 27 such as a bolt with a hexagonal socket
It is removably attached. An upper liner 28 provided on the upper lid 25 in substantially the same shape as the bottom liner 20 holds an engaging protrusion 21c provided at the upper end of the side liner 21 between it and the side surface of the discharge path 16, and fastens bolts, etc. The upper liner 28 prevents the bottom liner 20 and the side liners 21 from moving in the vertical direction.

A plurality of regulator blades 30 are hinged around the lower part of the rotor 13 so as to be out of phase with the discharge port 15. As will be described later, the regulator blade 30 is used to reflow a part of the ground material that naturally falls from the upper part of the annular polishing chamber 5, and is constructed as follows. That is, as detailed in FIG. 2, a cylindrical cover bracket 31 is vertically installed on the lower surface of the rotary table 14 of the rotor 13 so as to cover the upper end of the bearing housing 11. A support flange 32 is attached to the outer periphery of the rotary table 14 with an appropriate distance therebetween. The plurality of horizontally extending regulator blades 30 are hinged between the rotary table 14 and the support flange 32 by vertical pins 33, respectively. Each regulator blade 30 is connected to the rotor 13
The length of the rotor 13 is such that the locus drawn by the tip when centrifugal force due to the rotation of the rotor 13 is applied is larger than the outer diameter of the rotor 13.

A driven pulley 34 is attached to the lower end of the vertical rotating shaft 9, and the driven pulley 34 consists of a driving pulley and a belt ( (both are not shown).

A short cylindrical discharge adjustment ring 35 supported by the lower housing 1 is fitted into the lower opening 3 of the upper housing 4 so as to be movable up and down. The discharge adjustment ring 35 is connected to the lower opening 3 of the upper housing 4.
The distance between the rotor 13 and the regulator blade 30 and the lower opening edge of the annular polishing chamber 5 is changed in order to change the discharge resistance of the rotor 13 and the regulator blade 30. This discharge adjustment ring 35 prevents the upper part of the ground material deposited on the lower repulsion guide plate 6 of the annular polishing chamber 5 from reaching the height of the rotor 13 (lower than the discharge port of the rotor). It is provided so that the flow of the ground material discharged from the grinding material 13 is not obstructed by the accumulation of the ground material.

An upper opening 36 is provided in the upper center of the upper housing 4. The upper opening 36 has a supply pipe 38 with a funnel-shaped hopper 37 connected to the upper end.
The lower end of the supply pipe 38 is inserted into the introduction port 24 of the rotor 13.

In order to adjust the grain shape of the material to be ground using the grain shape adjuster with the above configuration, the electric motor is activated to rotate the rotor 13 at 40°
It rotates at a tip circumferential speed of approximately m/s, and the material to be ground is fed into the supply pipe 38 from the hopper 37.
The material to be ground is introduced into the rotor 13 from the introduction port 24, accelerated through the discharge path 16 by centrifugal force, and then horizontally discharged from the discharge port 15 in a tangential direction.

The material to be ground discharged from the discharge port 15 of the rotor 13 hits the lower repulsion guide plate 6 of the annular polishing chamber 5 and is repulsed upward, and is also repelled by the side repulsion guide plate 7 and the upper repulsion guide plate 8. After being guided and forced to flow in an arc shape from below to above within the annular polishing chamber 5, it falls naturally due to a decrease in kinetic energy. In the above-mentioned flow process, the sharp points of the material to be ground, which are weak in strength, are ground by mutual collision and grinding, and the material is adjusted to have a rounded grain shape.

A part of the ground material that falls naturally from the upper part of the annular polishing chamber 5 is flowed again together with the subsequent ground material discharged from the rotor 13, and some of the ground material that falls naturally without flowing together with the subsequent ground material is Since the discharge of the crushed material is prevented by the discharge adjustment ring 35, a part of the crushed material is again thrown out toward the annular polishing chamber 5 by the regulator blade 30, and the inside of this annular polishing chamber 5 is The particles are flowed again at a relatively high concentration together with other flowing materials to be ground to further adjust the particle shape, and the remaining part passes between the rotor 13, the regulator blade 30, and the discharge adjustment ring 35, and is then transferred to the lower housing 1. The product is discharged from the discharge port 2 as a product.

If one of the side liners 21 of the rotor 13 wears unevenly due to the continuation of the above operation, the electric motor is reversed and the rotor 13 is rotated in the opposite direction. Then, the side liner 21 and the bottom liner 2
If the rotor 0 etc. are worn out, first remove the upper part of the upper housing 4 together with the supply pipe 38 etc., and then remove the upper cover 25 of the rotor 13 from the rotor body 17. After the side liner 21 is pulled upward, the inner side liner 22 is removed if necessary, and the bottom liner 20 is also pulled upward and removed. After that, install the new bottom liner 20 and side liner 21 in the reverse order as described above, and replace the top lid 25.
is attached to the rotor body 7, and then the upper part of the upper housing 1 is attached together with the supply pipe 38 and the like.

In the above embodiments, the case where the rotor is used as a grain shape adjusting machine that adjusts the grain shape of the material to be ground as the material to be processed has been described, but the material is not limited to this, and for example, the material to be processed can be used as a deposited hardened product or an impact plate. (Anvil)
It may also be used as a rotor of a vertical shaft type impact crusher that crushes the crusher by impact.

In addition, since the inner side liner 22 has less wear than the side liner 21, fasteners 23 such as bolts
However, the side liner 2
Similarly to 1, engaging protrusions may be provided at the upper and lower ends, and these engaging protrusions may be inserted between the side surface of the discharge path 16 and the bottom liner 20 and the upper liner 28.

Further, the top liner 28 is connected to the inner side liner 22.
For the same reason, it is not limited to the case where it is attached using a fastener 29 such as a bolt, but it is also possible to drop it into the step formed by the engaging protrusion at the upper end of the side liner 21 and the inner side liner 22. Its movement may be prevented.

[Effects of the Invention] As described above, according to the rotor of the particle shape adjuster, etc. of the present invention, the movement of the bottom liner and side liners is controlled by the shape of the discharge path, the grooves provided on the back surface of the side liner, and the rotor body. This is prevented by the protrusions and the engaging protrusions provided on the upper and lower ends of the side liners, so there is no need to use bolts to attach the side liners, etc. as in the past, making it easy to replace these liners. Moreover, it can be carried out in a short time, and as a result, the time required for machine operation to be stopped due to liner replacement can be significantly reduced.

[Brief explanation of drawings]

The figures show an embodiment of a rotor for a grain shape adjuster, etc. of the present invention. FIG. 1 is a longitudinal cross-sectional view of a grain shape adjuster equipped with a rotor according to the present invention, and FIGS. FIG. 2 is a vertical cross-sectional view and a semi-cut plane cross-sectional view of the rotor. 9...Vertical rotation axis, 15...Discharge port, 16...
discharge path, 17...rotor body, 17a...projection,
20... Bottom liner, 21... Side liner, 21
a...Engaging protrusion, 21b...Groove, 21c...Engaging protrusion, 24...Introduction port, 25...Top lid, 28...
upper liner.

Claims (1)

[Claims] 1 The rotor of a particle shape adjuster, etc., which discharges the material to be treated horizontally in the tangential direction, which is supplied from above, is connected to the upper end of a vertical rotating shaft rotated by an electric motor, and the discharge port side is gradually narrowed. A disc-shaped rotor body with a radial discharge path, a bottom liner provided approximately in the same shape as the bottom surface of the discharge path and placed on this bottom surface, and a groove provided on the back surface of the rotor body. A side liner provided on at least one side of the discharge path in the vicinity of the discharge port by inserting an engaging projection provided at the lower end between the side surface of the discharge path and the bottom liner to engage with the protrusion in the direction. , an upper lid which is removably provided on the upper part of the rotor body and has an inlet in the center for introducing the material to be treated into the discharge path; and an upper lid which is provided in approximately the same shape as the lower liner and is provided at the upper end of the side liner. 1. A rotor for a particle shape adjuster, etc., comprising an upper liner attached to the upper lid with an engaging protrusion sandwiched between the side surface of the discharge path and the upper liner.