CN85105208A

CN85105208A - Roll grinding machine

Info

Publication number: CN85105208A
Application number: CN 85105208
Authority: CN
Inventors: 相马博; 桥本勳; 木下统右; 内田正博; 内山进
Original assignee: Kawasaki Heavy Industries Ltd
Current assignee: Kawasaki Heavy Industries Ltd
Priority date: 1985-07-08
Filing date: 1985-07-08
Publication date: 1987-01-14
Also published as: CN85105208B

Abstract

According to a kind of roll grinding machine of the present invention, include one and be suitable for being driven and the charging tray that rotates around the axle of perpendicular.This charging tray is suitable for receiving the material around this central area.This charging tray has a substantially horizontal upper surface, has radially outward located a cannelure in the central area of upper surface, and the bottom surface of groove is crooked.Also include at least one roller, its rotating shaft crosses one another with the charging tray axle above the upper surface of charging tray.Roller is stretched in the groove and goes, and the cross section of roller outer periphery surface is crooked.When using edge mill, make the rotation of charging tray and roller, material is diffused in the void space between the bottom surface of roller periphery surface and groove and goes.Charging tray has annular outstanding in the outer circumference of upper surface adjacent grooves, to block above-mentioned void space.

Description

Roll grinding machine

The present invention relates to a kind of vertical edge mill, be used for cinder or blast furnace cinder are pulverized into cement material.

Accompanying drawing 1 has been represented a kind of general vertical roll grinding machine, and it is published on " day the disclosure special permission communique " on January 22nd, 1985 60-12151 number.Among Fig. 1, a rotation charging tray 2 has endless groove 4, has only represented 1 among the several rollers 6(figure) be supported on the groove 4, between groove and roller, form a void space 8, this space 8 radially outwards narrows down, and stops that the material that pulverized outwards flows, thus make pulverize more effective.

The purpose of this invention is to provide a kind of vertical roll grinding machine, it is improved aspect pulverizing between rotation charging tray and the roller making to be retained in for a long time by ground material.

Form by a charging tray and at least one roller according to roll grinding machine of the present invention.This charging tray is suitable for being driven and rotating around a basic vertical axis, also is suitable for receiving the material around the central area of axle.Charging tray has the upper surface of basic horizontal, the central area of upper surface radially outward located a cannelure, the basal surface of groove is crooked.The rotating shaft of this roller intersects with the charging tray axle above the upper surface of charging tray.Roller is stretched in the groove, and the cross section of its outer periphery surface is crooked.When using edge mill, make the rotation of charging tray and roller, material is diffused in the void space between the basal surface of the periphery surface of roller and groove and goes.Charging tray has an annular outstanding on the upper surface of the neighboring of adjacent grooves, is used for blocking void space.

Preferred embodiment of the present invention, as shown in drawings, wherein:

Fig. 1 is a kind of partial side view that the section axial cross section is arranged of general roll grinding machine.

Fig. 2 to 5 is partial side views that the section axial cross section is arranged of several embodiment of the present invention.

Fig. 6 is the cross-sectional view at VI along the line-VI place among Fig. 5.

In the accompanying drawings, corresponding part is provided identical reference number.

Among Fig. 2, vertical roll grinding machine has comprised the metal rotation charging tray of an anti-appearance 2a, and it is supported on (not shown) on the base, is driven around a vertical axis 10 during work.The upper surface of charging tray 2a is fixed with the liner 12 of an annular, and liner 12 has cannelure 4a on the surface thereon, and groove 4a generally is a garden shape from the cross section that comprises charging tray axle 10.

The material (not shown) that need pulverize is fed to the center of charging tray 2a, and material radially outward moves by centrifugal action, enters among the groove 4a and goes.

Several rollers 6a is contained in the top of charging tray 2a.Each roller 6a is an axle journal with an end of arm 14, that is, an end of arm in by the vertical plane in charging tray axle center 10 with on the pivotally connected pedestal that is contained in edge mill, but this arm can not leave this plane.The outer periphery surface 18 of roller 6a sees it is garden shape on the cross section that comprises axle 20.

Each roller 6a and arm 14 by general pressure apparatus (not shown) to lower swing, so when material outwards moved through narrow space 16 between roller surfaces 18 and the groove 4a, roller 6a just was pressed in above the material.So material is compressed between roller and groove and pulverizes.

Space 16 radially outward narrows down along charging tray 2a along radially inner this side of charging tray in the sagittal plane 22 from the axial centre of roller 6a, so that material enters the gap easily and pulverized effectively; And on the plane 22 Outboard Sections, gap 16 is constant, so that roll meticulous.

Charging tray 2a has a ring-type protrusion 24 to be fixed on the outer circumference of its upper surface adjacent grooves 4a, and protrusion 24 has the inboard 26 of a garden arc, hides and obstruction space 16, stops that effectively material outwards flows out or leakage.Like this, just make that the material in space 16 keeps the long time in the outside, fine ground fully up to its quilt.

The embodiment of Fig. 3, its structure and Fig. 2 are similar.

Among Fig. 3, the periphery surface of roller 6b, cross section are garden shapes, have the radius of curvature 28 and the center of curvature 30, and center 30 is positioned on the sagittal plane 22b of roller axial centre.

Charging tray liner 12b has cannelure 4b on its upper surface, the cross section of groove 4b is a garden shape, has the radius of curvature 32 and the center of curvature 34, and center 34 also is positioned on the 22b of plane.Depart from center 30 in the direction of leaving groove 4b.

In the side along charging tray 2b radial centripetal of plane 22b, the space between roller 6b and the groove 4b has formed first space 36, and space 36 radially outward narrows down gradually along charging tray 2b.

Formed second space 38 between the roller 6b of the opposite side of plane 22b and groove 4b, it radially outward broadens gradually along charging tray 2b.The outer circumference of charging tray liner 12b adjacent grooves 4b on it has an annular projection 24b.This projection 24b has a radial inner conical surface 26b, hides second gap 38, thereby has stopped the outflow or the leakage of material effectively.

The dilation 39 that second space 38 forms, its two ends are all getting clogged.This dilation 39 has been full of a thick layer of material that is pulverized, and the effect of pulverizing certainly that has therefore improved material is so that roll meticulous.

Structure and Fig. 3 of the embodiment of Fig. 4 are similar.

Among Fig. 4, the cross section of the periphery surface 18c of roller 6c is a garden shape, has radius of curvature 28c and center of curvature 30c, and center 30c is positioned on the sagittal plane 22c of axial centre of roller.

Charging tray liner 12c is having cannelure 4c in the main region except that periphery area on its upper surface, its slot cross-section is a garden shape, have radius of curvature 32c and center of curvature 34c, center 34c also is positioned on the 22c of plane, but departs from center 30c in the direction of leaving groove 4c.

Externally regional, the cross section of groove 4c has the curvature 40 and the center of curvature 42.Radius 40 is slightly littler than the radius 28c of roller 6c.Center 42 is positioned in axially outer half one of roller.This has just formed the interior ring surface 26c of a garden arc, and it is crooked and hide outer void 38c between roller and the groove 4c to roller 6c.

In the embodiment of Fig. 5 and Fig. 6, edge mill comprises a rotation charging tray 2a, at its upper surface a cannelure 4d is arranged.

Charging tray 2d is equipped with several arc dividing plates or projecting block 24d in the outer circumference of adjacent grooves 4d, and as shown in Figure 6, each dividing plate 24d is installed on the upper surface of charging tray 2d, and can radially slides by dovetail joint.

Dividing plate 24d is connected with a bell crank lever 46, and the bell crank lever pivotal support is on charging tray 2d, and another arm of bell crank lever 46 is connected with an arm of bar 48 and another bell crank lever 50.This bell crank lever also is supported on the charging tray 2d.Another arm of this bell crank lever 50 is connected with hydraulic pressure or Electric Drive device 52 on being fixed on charging tray 2d.Driver 52 moves radially dividing plate 24d so that change the covering amount on the groove 4d.

Claims

A kind of roll grinding machine that is used to pulverize material is characterized in that being made up of charging tray and at least one roller.This charging tray is suitable for being driven and rotating around a basic vertical axis, also is suitable for receiving the material around the central area of above-mentioned axle.Above-mentioned charging tray has the upper surface of a basic horizontal.A cannelure has radially outward been located in above-mentioned central area on above-mentioned upper surface, and above-mentioned groove has the bottom surface of a bending.The rotating shaft of roller intersects with above-mentioned vertical axis above above-mentioned upper surface.Above-mentioned roller is stretched in the above-mentioned groove, and the cross section of its outer periphery surface is crooked.When using above-mentioned edge mill, make the rotation of above-mentioned charging tray and above-mentioned roller, material is diffused in the void space between above-mentioned periphery surface and the above-mentioned bottom surface and goes.The above-mentioned upper surface of above-mentioned charging tray in the neighboring of contiguous above-mentioned groove has annular outstanding, to block above-mentioned void space.