CN103174049B - Pulp abrasive disc - Google Patents

Abstract

The invention discloses a pulp abrasive disc which can be made of high chromium white iron. According to the pulp abrasive disc, a plurality of single-teeth are distributed on the inner side of the surface of the abrasive disc, annular teeth are arranged on the periphery of the surface of the abrasive disc, each annular tooth is composed of an annular tooth root and an annular tooth body, annular tooth roots are composed by one or more complete circles or a plurality of arcs with the same radius, tooth profile directions of the single-teeth and the annular teeth are all clockwise, height of the single-teeth and the annular teeth is 12-16 mm, height of the annular tooth roots is 8-12 mm, and tooth tail width of the single-teeth or the annular teeth is 12-16 mm. The pulp abrasive disc is capable of increasing volume of an abrasive chamber, increasing the rubbing area of abrasive teeth, and improving grinding efficiency and grinding quality, and suitable for grinding of various pulp such as hardwood pulp, cork wood pulp and non-wood pulp.

Description

Pulp abrasive disc

Technical field

The present invention relates to grinder abrasive disc, refer to the abrasive disc being applicable to pulp grinding and using especially.

Background technology

Grinder work is the relative motion (rotation) relying on Moving plate and quiet dish, to the process that material (as wood pulp) cuts, extrudes and crumples.Every platform grinder has a Moving plate and a quiet dish, and Moving plate is by moving abrasive disc holder and dynamic abrasive disc is formed jointly, and quiet dish is made up of quiet abrasive disc holder and quiet abrasive disc.Abrasive disc (dynamic abrasive disc, quiet abrasive disc) is made up of card and the multiple teeth be distributed in card.Varying in size according to grinder, the disc-shape that card can be overall disc-shape or is combined into by several fanning strips; Different profiles of tooth and different profile of tooth distributions can produce different grinding effects.Dynamic abrasive disc and quiet abrasive disc with the use of time, it is interlaced arrangement that the profile of tooth of dynamic abrasive disc and quiet abrasive disc is distributed in diametric(al).

Number of patent application be " abrasive disc " design patent of CN200630198192.8 relate to the shape that main points are particle, only mention that card has the simple shape abrasive disc of multiple monodentate.

Number of patent application is " abrasive sheet " patent of CN99110380.7, the multiple resinous grinding component of the tubular of minute diameter is passed through in their axis direction end face state in the same plane, the mode connected indissociably between the outer peripheral face of these parts, finally integrally form the micro hole having through-thickness through according to certain regular-scattered, i.e. the slab construction thing in hole.The abrasive action face of abrasive sheet is formed by the end face of the axis direction of grinding component, and the 1st hole is made up of the centre bore of grinding component, the 2nd hole by grinding component outer peripheral face between gap form.Its profile of tooth is circular, and do not have the fine gtinding processing of the hard material such as sharp-pointed tooth head or crown, only applicable metal material, the grinding being not suitable for fiber state or slurry uses.

Summary of the invention

Goal of the invention: overcome the abrasive disc structure of existing grinder simply, be not too applicable to the shortcoming of grinding pulp, provide a kind of and there is clockwise profile of tooth trend, monodentate and ring tooth combining structure, abrasive disc that the good efficiency of grinding wood pulps quality is high.

Technical scheme: Pulp abrasive disc of the present invention, can be used as the dynamic abrasive disc of grinder or quiet abrasive disc, containing card, its card be distributed with multiple monodentate; Card is overall discoid, or connected together by Ji Zhi center, that the peripheral fanning strip be separated combines is discoid.

Inside described card, be substantially evenly distributed with multiple monodentate, outside card, be with ring tooth.

Described ring tooth is made up of ring tooth root and multiple ring tooth, and ring tooth root is the identical arc-shaped of a complete circle shape or multiple radius, can prevent too early the overflowing of material, and material is ground fully.Ring tooth root is connected in card, and multiple ring tooth dispersion is connected on ring tooth root.

Shape near the tooth head of monodentate and ring tooth is triangular pyramid (each face of preferred triangular pyramid is isosceles triangle), the tangential direction that profile of tooth trend (the sideline mid point of the tooth tail in card is to the direction of tooth head) is its position place circular arc (together circle center being circular arc with the center of circle of card), and all in clockwise direction, and in a clockwise direction rotary work (be different from installation and the working method of existing abrasive disc, abrasive disc of the present invention and mounting means thereof can be described as anti-tooth reversion).

The ring tooth root of the concentric ring that described card periphery can have 2-4 radius different or isocentric circular arc, namely can have the concentric annular tooth that 2-4 bar radius is different, greatly, grinding effect is good in grinding space, and the material of grinding not easily leaks outside waste.

The addendum angle of described monodentate and ring tooth can be 60 o-75 o, preferably 65 o-70 o, more preferably 67o.

The height (card, to the distance of crest top land, is called for short tooth depth) of described monodentate and ring tooth is identical, is all preferably 12-16mm; The height of ring tooth root is preferably 8-12mm.

The width (distances at tooth tail two ends) of monodentate tooth tail or ring tooth tooth tail is identical, is all preferably 10-20mm; And preferably the width of monodentate tooth tail or ring tooth tooth tail is greater than the width (distances of ring tooth root both sides) of ring tooth root, make mill thorax volume large.

Described monodentate is identical with the height of ring tooth, is preferably 14mm; The height of ring tooth root is preferably 10mm; The width of monodentate tooth tail or ring tooth tooth tail is identical, is preferably 14mm.

Described abrasive disc is preferably made up of high chromium white iron material matter, wear-and corrosion-resistant, and long perfomance life, manufacturing cost is lower.

Beneficial effect: abrasive disc of the present invention, can increase the volume of mill thorax, improves the useful load of grinder; What increase mill line rubs area, improves the working ability of grinding efficiency and grinder, and fully, through the material fiber fluffy of grinding, steady quality is reliable in grinding.With arrange on abrasive disc clockwise monodentate and ring tooth, abrasive disc with the work of turning clockwise, the installation of this anti-tooth reversion and working method, make the discharging direction of mill just to the blowing direction of material, improve the mass transport ability of grinder.The grinding that this abrasive disc is applicable to the multiple pulps such as hardwood pulp, softwood pulp and the non-wood pulp dregs of rice uses, and its different tooth had and dissimilar tooth form arrangement can produce different grinding effects, to the strong adaptability of different material; And the grinder installing this abrasive disc not easily feed blocking occurs, be convenient to carrying out continuously of subsequent production technique.

Accompanying drawing explanation

Fig. 1 is a fragmentary top TV structure schematic diagram of the present invention;

Fig. 2 is the perspective view of the monodentate that in the present invention, is amplified;

Fig. 3 is the schematic cross-section of the vertical card of the ring tooth that in the present invention, is amplified;

In figure, 1, card; 2, monodentate; 3, ring tooth; 4, ring tooth root; 5, ring tooth; 6, tooth tail; 7, tooth head; 8, tooth depth; 9, tooth top; 10, addendum angle; 11, the height of ring tooth root; 12, the width of tooth tail; 13, the width of ring tooth root.

Detailed description of the invention

Below in conjunction with drawings and Examples, the present invention is described further.

Embodiment:

The Pulp abrasive disc be made up of high chromium white iron material matter as shown in Figure 1, can be used as the dynamic abrasive disc of grinder; Card is the discoid of entirety, is substantially evenly distributed with multiple monodentate, is with the concentric annular tooth that 2 radiuses are different outside card inside described card.

Described ring tooth is made up of ring tooth root and multiple ring tooth, and ring tooth root is a complete circle shape, and ring tooth root is connected in card, and multiple ring tooth dispersion is connected on ring tooth root.

As shown in accompanying drawing 2, accompanying drawing 3, the shape near the tooth head of monodentate and ring tooth is isosceles triangular pyramid, and profile of tooth trend is the tangential direction of its position place circular arc, and all in clockwise direction.The addendum angle of described monodentate and ring tooth is 67 o, and monodentate is all 14mm mutually with the height of ring tooth, and the height of ring tooth root is 9mm; The width of monodentate tooth tail or ring tooth tooth tail is identical, is 16mm, and is greater than the width of the 8mm of ring tooth root.

Claims (4)

1. a Pulp abrasive disc, can be used as the dynamic abrasive disc of grinder, its card is distributed with multiple monodentate; Card is the discoid of entirety; It is characterized in that: inside described card, be substantially evenly distributed with multiple monodentate, outside card, be with ring tooth; Described ring tooth is made up of ring tooth root and multiple ring tooth, and ring tooth root is the identical arc-shaped of multiple radius, and ring tooth root is connected in card, and multiple ring tooth dispersion is connected on ring tooth root;

Shape near the tooth head of described monodentate and ring tooth is triangular pyramid, and profile of tooth trend is the tangential direction of its position place circular arc, and all in clockwise direction;

The addendum angle of described monodentate and ring tooth is 60 o-75 o; Described monodentate is identical with the height of ring tooth, is 12-16mm; The height of described ring tooth root is 8-12mm; The width of described monodentate tooth tail or ring tooth tooth tail is identical, and is greater than the width of ring tooth root.

2. abrasive disc according to claim 1, is characterized in that: be with the concentric annular tooth that 2-4 bar radius is different outside described card.

3. abrasive disc according to claim 1, is characterized in that: described monodentate is identical with the height of ring tooth, is 14mm; The height of ring tooth root is 10mm; The width of described monodentate tooth tail or ring tooth tooth tail is identical, is 10-20mm; Described addendum angle is 65 o-70 o.

4. abrasive disc according to claim 1 and 2, is characterized in that: described abrasive disc is made up of high chromium white iron material matter.