CN210097828U - Grinding ring of grinding machine - Google Patents

Abstract

The utility model discloses a grinding ring of a grinding machine, which is in a multilayer form and is provided with a plurality of layers of internal grinding rings, and each layer of internal grinding ring is polished; the outer ring of the grinding ring is a smooth polished surface, an annular groove is formed in the position of the outer ring corresponding to the middle of the two inner grinding rings, and a hoisting hole is formed in the groove. The utility model discloses design the grinding ring into take multilayer internal grinding annular form, the mounting height of reducible whole equipment shortens the clearance of emery wheel from top to bottom simultaneously, and the during operation, the material can be smashed again when the clearance of two emery wheels from top to bottom is pure, and pure more abundant is smashed, has improved pure efficiency of smashing. Meanwhile, stress can be effectively dispersed by the grooves formed in the outer ring of the grinding ring, the service life of the grinding ring is prolonged, the hoisting holes are refitted to the grooves of the outer ring, the hoisting position is changed, and the grinding ring is prevented from being damaged during hoisting.

Description

Grinding ring of grinding machine

Technical Field

The utility model relates to a pure equipment field of powder especially relates to a mill grinding ring.

Background

The mills can be classified into ball mills, column mills, rod mills, tube mills, autogenous mills, rotary mortar mills, vertical mills, multi-layer vertical mills, vertical roll mills, generalized disc mills, DMC mills, etc., depending on the grinding medium and the grinding material. The grinding machine mainly adopts the principles of impact, rolling and grinding to crush materials, for example, a vertical roller mill adopts an assembly structure of revolution of a grinding wheel frame and rotation of a grinding wheel, a certain gap is formed between the grinding wheel and a grinding pin, when the grinding wheel frame revolves along with a main shaft, the grinding wheel is thrown to a grinding ring by centrifugal force and rotation, and the inner wall of the grinding ring is tightly pressed to form grinding force, so that the extrusion strength and the shearing capacity of the grinding wheel on the materials are enhanced, the effect of strengthening grinding material powder is achieved, and the grinding machine has the characteristics of high yield and high fineness of ground material powder.

The grinding ring of current mill receives the vibration that equipment operation produced when material striking and grinding for a long time, has stress concentration district, easy fracture damage, consequently for conveniently changing the grinding ring, multiunit emery wheel about current adopts the mode that every group used single grinding ring more, and the grinding ring is the single circle form promptly, as shown in fig. 1, causes whole equipment height to increase like this, and a plurality of grinding rings are difficult for the installation fixed, and long-time striking and the easy off tracking of vibration cause the material to have phenomenon such as piling up the dead angle. In addition, the grinding ring is large in size and weight, and needs to be hoisted by external hoisting equipment, hoisting holes (namely screw holes for installing hoisting bolts) of the existing single-ring grinding ring are formed in the end face of the grinding ring, the end face is thin, and the hoisting holes are subjected to large stress during hoisting and are prone to cracking.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mill grinding ring solves current single grinding ring easy cracking, too high scheduling problem, improves the installation effectiveness.

The utility model provides a technical problem can adopt following technical scheme to realize:

a grinding ring of a grinding machine is characterized in that: the grinding ring is in a multilayer form and is provided with a plurality of layers of inner grinding rings, and each layer of inner grinding ring is subjected to polishing treatment; the outer ring of the grinding ring is a smooth polished surface, an annular groove is formed in the position, corresponding to the middle of the two inner grinding rings, of the outer ring, and hoisting holes are formed in the groove.

Preferably, the inner grinding ring is a cambered surface, and the radius of the cambered surface is R110-R125 mm.

Preferably, the grooves are not polished and have rough surfaces.

Preferably, the width of the groove is 40-60mm, and the depth is 3-6 mm.

Preferably, the central line of the groove is superposed with the middle line between the upper inner grinding ring and the lower inner grinding ring.

Preferably, the hoisting hole is formed in the center line of the groove.

Preferably, the upper edge and the lower edge of the outer ring are provided with clamping grooves.

The utility model discloses design the grinding ring into take multilayer internal grinding annular form, the mounting height of reducible whole equipment shortens the clearance of emery wheel from top to bottom simultaneously, and the during operation, the material can be smashed again when the clearance of two emery wheels from top to bottom is pure, and pure more abundant is smashed, has improved pure efficiency of smashing. Meanwhile, stress can be effectively dispersed by the grooves formed in the outer ring of the grinding ring, the service life of the grinding ring is prolonged, the hoisting holes are refitted to the grooves of the outer ring, the hoisting position is changed, and the grinding ring is prevented from being damaged during hoisting.

Drawings

Fig. 1 is a schematic perspective view of a conventional grinding ring.

Fig. 2 is a schematic perspective view of the present invention.

Fig. 3 is a schematic cross-sectional view of the present invention.

In the figure, an inner grinding ring 1, an outer ring 2, a groove 3, a clamping groove 4 and a hoisting hole 5.

Detailed Description

The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.

As fig. 2, 3 are the utility model discloses an optimal scheme, the grinding ring is the multilayer form, be equipped with many layers internal grinding ring 1 (this embodiment uses two layers internal grinding ring as the example), polishing treatment is all done to every layer internal grinding ring 1, among the prior art, internal grinding ring 1 is mostly spherical (the spherical zone is planar, the central point falls on the sphere vertical line mid point down promptly), because of the sphere camber is big, cause the material whereabouts smooth and easy inadequately, this embodiment designs internal grinding ring 1 into the cambered surface (the central point is the centre of a circle point of whole toroidal), cambered surface radius is R110-R125 mm.

The outer ring 2 of the grinding ring is a smooth polished surface, an annular groove 3 is formed in the position of the outer ring 2 corresponding to the middle position of the two inner grinding rings 1, the central line of the groove 3 is overlapped with the middle line between the upper inner grinding ring 1 and the lower inner grinding ring 1, the groove 3 is not required to be polished, rough machining can be conducted, machining cost can be reduced, and machining efficiency is improved. The arrangement of the groove 3 can improve the overall compression resistance of the grinding ring, disperse stress, eliminate the influence of expansion with heat and contraction with cold, provide a deformation space for the inner grinding ring 1 to deform under impact, and meanwhile, the depth of the groove 3 ensures that the strength of the grinding ring at the set position is not affected and cannot be too deep, and in the embodiment, the width of the groove 3 is 40-60mm and the depth is 3-6 mm.

Draw-in groove 4 has been seted up to the upper and lower edge of outer lane 2, during the installation with the supporting joint of outside mounting bracket, can carry on spacingly to the grinding ring.

In the embodiment, the hoisting hole 5 is arranged on the central line of the groove 3, the whole annular surface of the groove 3 is stressed during hoisting, and the phenomenon that the hoisting hole at the end face is easy to crack is avoided.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments still belong to the protection scope of the present invention.

Claims (7)

1. A grinding ring of a grinding machine is characterized in that: the grinding ring is in a multilayer form and is provided with a plurality of layers of inner grinding rings, and each layer of inner grinding ring is subjected to polishing treatment; the outer ring of the grinding ring is a smooth polished surface, an annular groove is formed in the position, corresponding to the middle of the two inner grinding rings, of the outer ring, and hoisting holes are formed in the groove.

2. A mill grinding ring according to claim 1, wherein: the inner grinding ring is an arc surface, and the radius of the arc surface is R110-R125 mm.

3. A mill grinding ring according to claim 1, wherein: the groove is not polished and is a rough surface.

4. A mill grinding ring according to claim 1, wherein: the width of the groove is 40-60mm, and the depth is 3-6 mm.

5. A mill grinding ring according to claim 1, wherein: the central line of the groove is superposed with the middle line between the upper inner grinding ring and the lower inner grinding ring.

6. A mill grinding ring according to claim 1, wherein: the hoisting hole is formed in the center line of the groove.

7. A mill grinding ring according to claim 1, wherein: and the upper edge and the lower edge of the outer ring are provided with clamping grooves.

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