CN220004291U - Two-way cutting knife structure of breaker - Google Patents

Abstract

The utility model belongs to the technical field of crushers, and particularly relates to a two-way cutting knife structure of a crusher, which comprises a machine body of a double-shaft crusher and two knife shafts, wherein a plurality of movable knives and spacing rings are coaxially arranged on the two knife shafts in a penetrating way, each movable knife and each spacing ring are alternately arranged, movable knife edge parts are arranged on the outer sides of the movable knives, fixed knife rests are horizontally arranged on the inner side walls of front side plates and rear side plates of the machine body, a plurality of fixed knives and spacing pieces are detachably arranged on the fixed knife rests, each spacing piece and the fixed knives are alternately stacked, an inner arc surface matched with each spacing piece is arranged on the inner side of each fixed knife, fixed knife edge parts are respectively arranged at the upper end and the lower end of each inner arc surface, and the movable knife edge parts and the fixed knife edge parts are alternately arranged. The movable knife of the crusher can participate in cutting and crushing no matter positively or reversely, the fixed knife is more convenient to assemble, disassemble and replace, and winding materials on the spacer ring can be removed, so that the problem of winding of the movable knife and the spacer ring by medical waste is well solved, and the working efficiency of the shearing type double-shaft crusher can be greatly improved.

Description

Two-way cutting knife structure of breaker

Technical Field

The utility model belongs to the technical field of crushers, and particularly relates to a two-way cutter structure of a crusher.

Background

The medical waste treatment generally uses a shearing type double-shaft crusher to carry out crushing treatment, due to the physical characteristics of the medical waste, the phenomenon of winding a movable cutter and a spacing ring frequently occurs in the crushing process, most stationary cutters only participate in cutting in a unidirectional manner in the process of cutting the medical waste by the movable cutter, the stationary cutters of the conventional double-shaft crusher are directly fixedly connected on the inner wall of the crusher, the cutting edge parts of the stationary cutters are worn or crushed, the stationary cutters are inconvenient to detach and replace, and when the medical waste treatment capacity is too large or the medical waste winds the movable cutter, the cutter shafts are stressed too much and reversely rotate, the stationary cutters cannot intercept the medical waste to participate in cutting until the cutter shafts rotate forward again, and the working efficiency is greatly reduced.

Disclosure of Invention

Aiming at the situation, the utility model designs a two-way cutting knife structure of the crusher, wherein the movable knife can participate in shearing and crushing of medical wastes no matter in forward rotation or reverse rotation, and meanwhile, the winding materials on the spacer ring can be removed.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a two-way cutting knife structure of breaker, including the organism of biax breaker and two cutter arbor that are parallel to each other, both sides are provided with preceding curb plate and posterior lateral plate respectively around the organism, both ends are provided with left end plate and right end plate respectively about the organism, the organism top is provided with the feed inlet, the organism bottom is provided with the discharge gate, the both ends of every cutter arbor rotate with left and right end plate through the bearing respectively, a plurality of moving blades and spacer ring are all fixed wearing to be equipped with on two cutter arbor in coaxial, each moving blade and spacer ring stack setting in turn, each moving blade outside is provided with moving blade portion, each moving blade and spacer ring all are located the organism inside, the inside wall middle part of organism front and posterior lateral plate is provided with stationary knife rest along left and right direction level, be provided with a plurality of stationary knives and spacer piece on the stationary knife rest, each spacer piece stacks the setting in turn, the topside and the base of each stationary knife both sides all are provided with shearing blade portion, each stationary knife inboard is provided with the interior cambered surface that cooperates with the spacer blade, both ends are provided with the scraping blade portion respectively about the cambered surface, moving blade portion and shearing portion and scraping blade portion are crisscross setting.

Further, the fixed knife rest is a T-shaped guide rail, the narrow surface side of the fixed knife rest is fixedly connected with the inner side surface of the machine body in a fitting way, T-shaped clamping grooves are formed in the outer sides of the fixed knives and the spacing pieces in a matched way, the fixed knives can be slidably clamped on the fixed knife rest, and fixed knife blocking plates are fixedly arranged at two ends of the fixed knife rest.

Furthermore, a positioning supporting strip for supporting each fixed knife and each spacing piece in an auxiliary mode is arranged below the fixed knife rack in parallel, and the upper side face of the positioning supporting strip is in fit contact with the lower side face of each fixed knife and each spacing plate.

Further, the movable knife and the spacing ring are both annular, ratchet-shaped movable knife edge parts are arranged on the peripheral edge ring of the movable knife, the inner circles of the centers of the movable knife and the spacing ring are connected with the cutter shaft through splines, external threads are arranged between the two ends of the cutter shaft and the bearings, and movable knife nuts are connected with the two ends of the cutter shaft through threads.

Further, the inner arc surface of the fixed knife is in clearance fit with the outer circumference of the spacing ring of the movable knife, each fixed knife is opposite to the spacing ring, each movable knife is opposite to the spacing piece, and a certain shearing clearance is reserved between each movable knife and the adjacent fixed knife.

The utility model also includes other components that enable normal use thereof, all as is conventional in the art, and in addition, the devices or components not limited in the utility model, such as the machine body, arbor, bearing, etc. of the double-shaft crusher, all employ prior art in the art.

The beneficial effects of the utility model are as follows:

according to the bidirectional cutting knife structure of the crusher, the movable knives can participate in cutting and crushing no matter positively or reversely, the fixed knives are more convenient to assemble, disassemble and replace, the winding materials on the spacer ring can be removed, the problem of winding medical wastes on the movable knives and the spacer ring is well solved, and the working efficiency of the shearing type double-shaft crusher can be greatly improved.

Drawings

Fig. 1 is a schematic top view of a bi-directional cutter structure of a crusher in an embodiment.

Fig. 2 is a schematic cross-sectional view taken along line A-A in fig. 1.

Fig. 3 is a schematic perspective view of the stationary knife in fig. 2.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below in connection with specific embodiments, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all embodiments.

It should be noted that, the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. are shown based on the drawings, and are merely for convenience of description.

Examples

As shown in fig. 1-3, a bidirectional cutter structure of a crusher comprises a machine body of a double-shaft crusher and two cutter shafts 1 which are parallel to each other, wherein a front side plate 2 and a rear side plate 3 are respectively arranged at the front side and the rear side of the machine body, a left end plate 4 and a right end plate 5 are respectively arranged at the left end and the right end of the machine body, a feed inlet 6 is arranged at the top of the machine body, a discharge outlet 7 is arranged at the bottom of the machine body, two ends of each cutter shaft are respectively and rotatably connected with the left end plate and the right end plate through bearings 8, a plurality of movable cutters 9 and spacing rings 10 are coaxially and fixedly arranged on the two cutter shafts in a penetrating manner, each movable cutter is alternately stacked with the spacing rings, movable cutter blades 11 are arranged at the outer sides of each movable cutter, each movable cutter and each spacing ring are positioned in the machine body, a fixed cutter frame 12 is horizontally arranged at the middle part of the inner side wall of the front side plate and the rear side plate of the machine body along the left direction and the right direction, a plurality of fixed cutters 13 and spacing blades 14 are detachably arranged on the fixed cutter frame, each spacing blade is alternately stacked with the fixed cutter blades 21 are respectively arranged on the top side and the bottom of the left side of each fixed cutter, inner cutter is provided with an inner arc surface 15 matched with the spacing blades, the inner arc surface is arranged on the inner side of each fixed cutter, the inner cutter, movable cutter blade is provided with the inner cutter blade 16, the inner cutter blade is provided with the fixed with the upper and lower cutter blade and the fixed cutter blade.

The fixed knife rest is a T-shaped guide rail, the narrow side of the fixed knife rest is fixedly connected with the inner side of the machine body in a fitting way, T-shaped clamping grooves 17 are formed in the outer sides of the fixed knives and the spacing pieces in a matched way, the fixed knives are slidably clamped on the fixed knife rest, fixed knife blocking plates 18 are fixedly arranged at two ends of the fixed knife rest, and the fixed knife blocking plates are fixedly connected with fixed knife rest bolts.

And a positioning supporting strip 19 for supporting each fixed knife and each spacing piece in an auxiliary supporting manner is arranged in parallel below the fixed knife rack, and the upper side surface of the positioning supporting strip is in fit contact with the lower side surfaces of the fixed knives and the spacing plates.

The movable knife and the spacing ring are circular, the periphery edge ring of the movable knife is provided with a ratchet-shaped movable knife edge part, the center inner circles of the movable knife and the spacing ring are in spline connection with the knife shaft, spline grooves are formed in the inner circle surfaces of the movable knife and the spacing ring, spline surfaces are arranged on the outer sides in the middle of the knife shaft, external threads are arranged between the two ends of the knife shaft and the bearings, and the two ends of the knife shaft are in threaded connection with movable knife nuts 20.

The inner arc surface of the fixed knife is in clearance fit with the outer circumference of the spacing ring of the movable knife, the fit clearance is 0-1mm, each fixed knife is opposite to the spacing ring, each movable knife is opposite to the spacing piece, and a shearing clearance of 0-1mm is reserved between each movable knife and the adjacent fixed knife.

When the crusher cutter shaft rotates positively, the cutter shaft drives the crusher movable cutter to cut medical waste, at the moment, the shearing blade of the fixed cutter participates in shearing, and the scraping blade of the fixed cutter scrapes the medical waste rotating along with the spacer ring while participating in cutting, so that the medical waste is prevented from winding the movable cutter; similarly, when the cutter shaft is reversed, the working mechanism of the fixed cutter is the same.

The technical solution of the present utility model is not limited to the above-described specific embodiments, and many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments, and any technical modifications made within the spirit and principles of the present utility model fall within the scope of the present utility model.

Claims (5)

1. The utility model provides a two-way cutting knife structure of breaker, includes the organism and two arbor that are parallel to each other of biax breaker, and both sides are provided with preceding curb plate and posterior lateral plate respectively around the organism, and both ends are provided with left end plate and right end plate respectively about the organism, and the organism top is provided with the feed inlet, and the bottom of the body is provided with the discharge gate, and the both ends of every arbor are rotated through bearing and left and right end plate respectively and are connected, its characterized in that: the two cutter shafts are coaxially and fixedly penetrated with a plurality of movable cutters and spacing rings, the movable cutters and the spacing rings are alternately stacked, movable cutter edge parts are arranged on the outer sides of the movable cutters, the movable cutters and the spacing rings are positioned inside the machine body, fixed cutter holders are horizontally arranged in the middle of the inner side walls of the front side plate and the rear side plate of the machine body along the left-right direction, a plurality of fixed cutters and spacing pieces are detachably arranged on the fixed cutter holders, the spacing pieces and the fixed cutters are alternately stacked, the top edges and the bottom edges of the left side surface and the right side surface of each fixed cutter are respectively provided with a shearing cutter edge part, the inner sides of the fixed cutters are respectively provided with an inner arc surface matched with the spacing pieces, the upper ends and the lower ends of the inner arc surfaces are respectively provided with scraping cutter edge parts, and the movable cutter edge parts and the scraping cutter edge parts are alternately arranged.

2. The bi-directional cutting blade structure of a crusher according to claim 1, wherein: the fixed knife rest is a T-shaped guide rail, T-shaped clamping grooves are formed in the outer sides of the fixed knives and the spacing pieces in a matched mode, the fixed knives are slidably clamped on the fixed knife rest, and fixed knife blocking plates are fixedly arranged at two ends of the fixed knife rest.

3. The bi-directional cutting blade structure of a crusher of claim 2, wherein: and positioning supporting strips for supporting the fixed cutters and the spacing pieces in an auxiliary mode are arranged below the fixed cutter frame in parallel.

4. The bi-directional cutting blade structure of a crusher according to claim 1, wherein: the movable knife and the spacing ring are both annular, ratchet-shaped movable knife edge parts are arranged on the peripheral edge ring of the movable knife, the inner circles of the centers of the movable knife and the spacing ring are connected with the cutter shaft through splines, and movable knife nuts are fixedly arranged at two ends of the cutter shaft.

5. The bi-directional cutting blade structure of a crusher according to claim 1, wherein: the inner arc surface of the fixed knife is in clearance fit with the outer circumference of the spacing ring of the movable knife, each fixed knife is opposite to the spacing ring, each movable knife is opposite to the spacing piece, and a shearing gap is reserved between each movable knife and the adjacent fixed knife.