CN210522719U

CN210522719U - Cutter shaft structure and single-shaft crusher

Info

Publication number: CN210522719U
Application number: CN201920891344.4U
Authority: CN
Inventors: 吕文星; 郭华全
Original assignee: Zhongshan Shredder Machinery Co ltd
Current assignee: Zhongshan Shredder Machinery Co ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-05-15
Anticipated expiration: 2029-06-13

Abstract

The utility model discloses an arbor structure, including the arbor main part, the arbor main part is provided with cylindrical surface, and the arbor main part is provided with a plurality of sword grains of arranging along its axial on cylindrical surface, and two adjacent sword grains closely laminate to make there is not the clearance between two adjacent sword grains, for sparse arrangement's distribution mode, laminate each other and can set up more sword grains for promote cutting efficiency. Furthermore, the utility model provides a single-shaft crusher, carry out the stationary knife of cutting including arbor and cooperation arbor, the arbor sets up to an arbor structure of above-mentioned structure, and is rotatory to the stationary knife through smashing the cutting edge, and then cuts by cooperation between them, has greatly improved cutting speed and cutting efficiency, synthesizes the beneficial effect of above-mentioned arbor structure, can satisfy solid waste's high yield and low-cost demand well.

Description

Cutter shaft structure and single-shaft crusher

Technical Field

The utility model belongs to the technical field of the breaker, concretely relates to arbor structure and adopt single-shaft crusher of this arbor structure.

Background

With the rapid development of China's society, economy and industry for many years, the production amount of solid wastes is getting larger and larger. In the process of treating various solid wastes according to the principle of 'harmlessness, recycling and reduction', the single-shaft crusher is more and more widely applied to crushing the solid wastes due to the advantages of uniform crushing size, capability of controlling the discharge size through the screen, short maintenance time and the like. However, the existing single-shaft crusher has the problems of low cutting and discharging efficiency and high operation cost due to fast abrasion of cutters, and the reason is mainly that cutter grains on a single-shaft crushing cutter shaft are sparsely arranged, so that the cutting efficiency is low; secondly, the protruding height of the knife particles is low, so that the knife eating amount is further insufficient, and the material eating efficiency is low; and no effective measure is available to discharge the crushed materials in time, so that the discharging efficiency is low. The material can not in time be discharged and the sword grain wearing and tearing can increase, leads to output low and sword grain wearing and tearing big simultaneously, means that per ton material required cutter cost is very high for the customer, is difficult to match the high output and the low cost demand of solid waste.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an arbor structure of close-packed sword grain and adopt single-shaft crusher of this arbor structure.

The utility model provides a technical scheme that its technical problem adopted is:

on the one hand, the utility model provides an arbor structure, including the arbor main part, the arbor main part is provided with cylindrical surface, and the arbor main part is provided with a plurality of sword grains of arranging along its axial on cylindrical surface, and two adjacent sword grains closely laminate.

Preferably, a plurality of the knife particles are uniformly distributed along the circumferential direction of the knife shaft main body and are formed into a plurality of rows of knife particles, and the length direction of each row of the knife particles extends along the axial direction of the knife shaft main body or spirally extends along the axial direction of the knife shaft main body, so that a plurality of crushing knife edges are formed, and two adjacent knife particles in each crushing knife edge are tightly attached.

Preferably, two adjacent knife grains on each crushing blade are staggered by a certain angle along the circumferential direction of the cutter shaft main body, and the staggering directions of the knife grains at the two ends of the crushing blade are opposite, so that a V-shaped or W-shaped crushing blade is formed.

Preferably, the cross section of the knife particle is square, a V-shaped mounting groove matched with the knife particle is formed in the cylindrical surface of the knife shaft main body, and the knife particle is mounted in the V-shaped mounting groove, so that the outer side of the knife particle protrudes out of the cylindrical surface.

Preferably, the widths of the two side walls of the V-shaped mounting groove are matched with the widths of the side walls corresponding to the two adjacent side edges of the square section of the knife particle, so that the V-shaped mounting groove is completely attached to the two side walls of the knife particle.

Preferably, the cutter shaft main body is provided with a cutter holder with a threaded through hole in the mounting groove, the cutter grains are provided with threaded connecting holes corresponding to the threaded through holes, the cutter grains penetrate into the threaded connecting holes from the threaded through holes of the cutter holder through a fastening bolt, and the cutter grains are completely fixed on the cutter holder by matching with the V-shaped mounting groove.

Preferably, the tool apron is welded on the V-shaped mounting groove.

Preferably, the knife shaft main body is provided with a knife groove at the cutting end of the knife grain, and the bottom surface of the knife groove is lower than the bottom surface of the mounting groove.

Preferably, the projection width of the knife-feeding groove in the axial direction of the knife shaft main body is equal to the projection width of the knife grain in the axial direction of the knife shaft main body.

On the other hand, the utility model also provides a single-shaft crusher, carry out the stationary knife of cutting including arbor and cooperation arbor, the arbor sets up to foretell arbor structure.

The utility model has the advantages that: the knife particles on the knife shaft are closely arranged, the crushing knife edges are formed in a close-packed mode, and the adjacent knife particles on the same crushing knife edge are tightly attached to each other, so that gaps do not exist between the adjacent knife particles, the cutting capability of the crushing knife edges is extremely strong, and the cutting efficiency is high; the cutter grain is effectively fixed by the installation groove arranged on the cylindrical surface of the cutter shaft main body and the cutter holder arranged in the installation groove; the knife feeding groove is arranged at the cutting end of the knife particles, and the bottom surface of the knife feeding groove is lower than that of the mounting groove, so that the knife feeding groove is distributed in a step shape in the axial direction of the knife shaft main body, the feeding space of materials can be larger, the materials can be more easily close to the knife particles to be cut, the cut materials can be quickly discharged through the knife feeding groove, even if the materials at the bottom cannot be discharged in time, the materials can be contained at the bottom of the knife feeding groove, the knife particles are prevented from being accumulated on the knife particles to further and continuously rub, the abrasion of the knife particles is reduced to a certain extent, and the service life of the knife particles is prolonged; to sum up, the utility model provides an arbor structure has improved cutting efficiency, helps promoting cutting output, is favorable to solid waste's big batch processing demand, has prolonged the life of cutter simultaneously, has reduced manufacturing cost.

Furthermore, the utility model provides an adopt the unipolar breaker of above-mentioned arbor structure utilizes the advantage of above-mentioned arbor structure well, has the good processing and production ability.

Drawings

The invention will be further described with reference to the following figures and examples:

FIG. 1 is a schematic view of the cutter shaft and the stationary knife in shearing;

FIG. 2 is a schematic view of the knife shaft structure;

FIG. 3 is a schematic view of a cartridge installation;

in the figure, 101-a cutter shaft main body, 102-a fixed cutter, 103-a mounting groove, 104-a cutter feeding groove, 201-a cutter seat, 202-a cutter grain and 203-a fastening bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Referring to fig. 1 to 3, the present embodiment discloses a cutter shaft structure, including cutter shaft main body 101, cutter shaft main body 101 is provided with the cylindrical surface, and cutter shaft main body 101 is provided with a plurality of cutter grains 202 of arranging along its axial on the cylindrical surface, and two adjacent cutter grains 202 closely laminate to there is not the clearance between making two adjacent cutter grains 202, for sparse arrangement's distribution mode, laminate each other and can set up more cutter grains 202 for promote cutting efficiency.

Further, a plurality of sword grain 202 evenly arrange and be formed with many rows of sword grain 202 along the circumferencial direction of arbor main part 101, and the length direction of every row of sword grain 202 extends along the axial of arbor main part 101 or extends along its axial spiral, thereby form a plurality of crushing cutting edges, here, the row number sets up between 2-6 rows, the production demand decision is seen to concrete number, closely laminate between two adjacent sword grains 202 in every crushing cutting edge, guarantee not have the clearance between two adjacent sword grains, the cutter grain that closely arranges that the formation helps the arbor cutting force in cutting process even, avoid appearing the condition that can not cut material or material card between two adjacent sword grains 202, be favorable to accelerating cutting speed, and then promote cutting efficiency.

In consideration of the torque requirement of the cutter during cutting, two adjacent cutter particles 202 on each crushing blade are staggered by a certain angle along the circumferential direction of the cutter shaft main body 101, and the staggered directions of the cutter particles 202 at the two ends of each crushing blade are opposite, so that a V-shaped or W-shaped crushing blade is formed, the torque of each crushing blade can be effectively exerted, the phenomenon of jamming can be avoided, and the continuity of the whole cutting process is ensured.

Preferably, the utility model discloses a sword grain 202's cross-section is the square, arbor main part 101 be provided with in cylindrical surface with the V type mounting groove 103 of sword grain 202 adaptation, the axial of V type mounting groove (103) perpendicular to main shaft body (101), sword grain 202 is installed in V type mounting groove 103 and is makeed its outside salient in cylindrical surface, is favorable to fixed sword grain 202 to have the salient height of certain degree simultaneously.

Further, the width of the two side walls of the V-shaped mounting groove 103 is adapted to the width of the two side walls corresponding to the two adjacent side edges of the square cross section of the knife particle 202, so that the two side walls of the V-shaped mounting groove 103 completely cover the two side walls of the knife particle 202, and thus the knife particle 202 can be effectively prevented from being mounted on the V-shaped mounting groove 103, and due to the existence of a gap, the knife particle 202 is forced to rotate in the cutting process, so that the stress point of the knife particle 202 is changed, the abrasion of the knife particle 202 can be aggravated, and the service life of the knife particle 202 is prolonged to a certain extent.

Further, as shown in fig. 1, the cutting insert 202 is provided with four straight chamfers, the straight chamfer at the lowest end is attached to the bottom surface of the V-shaped mounting groove 103, the straight chamfer at the top is directly used for cutting, and the straight chamfers at two sides are used for attaching the straight chamfers of the adjacent cutting inserts (202). By the arrangement, on one hand, the straight chamfer angle converts the line structure into a surface structure, so that the cutting machine can bear larger impact force, reduce abrasion and further improve cutting efficiency; on the other hand, after the straight chamfer at the top is worn, the straight chamfer at the bottom of the cutter grain 202 can be placed at the top through rotating by 180 degrees, so that the installation and fixation are not influenced, the straight chamfer can be used for one-time production, and the use cost of the cutter is effectively reduced.

Specifically, in consideration of installation of the insert 202, the arbor main body 101 is provided with an insert seat 201 with a threaded through hole in an installation groove, the insert 202 is provided with a threaded connection hole corresponding to the threaded through hole, the insert 202 is inserted into the connection threaded connection hole from the threaded through hole of the insert seat 201 through a fastening bolt 203, and the insert 202 is completely fixed on the insert seat 201 by matching with the V-shaped installation groove 103.

Considering that the tool holder 201 bears a large force, the tool holder 201 is welded on the V-shaped mounting groove 103.

In order to improve the discharging efficiency and the cutting efficiency, the knife-edge groove 104 is arranged at the cutting end of the knife grain 202 of the knife shaft main body 101, and the bottom surface of the knife-edge groove 104 is lower than the bottom surface of the mounting groove 103.

Furthermore, the projection width of the knife-feeding groove 104 in the axial direction of the knife shaft main body 101 is equal to the projection width of the knife grain 202 in the axial direction of the knife shaft main body 101, so that the knife-feeding groove 104 which is distributed in a step shape in the axial direction of the knife shaft main body 101 as shown in fig. 1 can be obtained, the feeding space of the material is larger, the material can be more easily close to the knife grain 202 to be cut, and the cut material can be quickly discharged through the knife-feeding groove 104, even if the material at the bottom cannot be timely discharged, the material can be accommodated at the groove bottom of the knife-feeding groove 104, so that the knife grain 202 is prevented from being further and continuously rubbed on the knife grain 202, the abrasion of the knife grain 202 is reduced to a certain extent, and the service life of the knife grain 202 is prolonged.

Furthermore, the utility model provides a single-shaft crusher refers to the structural arrangement shown in fig. 1, carry out the stationary knife 102 of cutting including arbor and cooperation arbor, the arbor sets up to an arbor structure of above-mentioned structure, and is rotatory to stationary knife 102 through smashing the cutting edge, and then cuts by cooperation between them, has greatly improved cutting speed and cutting efficiency, synthesizes the beneficial effect of above-mentioned arbor structure, can satisfy solid waste's high yield and low-cost demand well.

The above embodiments are merely preferred embodiments of the present invention, and other embodiments are also possible. Equivalent modifications or substitutions may be made by those skilled in the art without departing from the spirit of the invention, and such equivalent modifications or substitutions are intended to be included within the scope of the claims set forth herein.

Claims

1. The utility model provides a knife shaft structure, its characterized in that includes knife shaft main part (101), knife shaft main part (101) are provided with cylindrical surface, and knife shaft main part (101) are provided with a plurality of sword grain (202) of arranging along its axial on cylindrical surface, and two adjacent sword grains (202) closely laminate.

2. The cutter shaft structure as claimed in claim 1, wherein a plurality of the cutter grains (202) are uniformly arranged along the circumferential direction of the cutter shaft main body (101) and are formed with a plurality of rows of the cutter grains (202), and the length direction of each row of the cutter grains (202) extends along the axial direction of the cutter shaft main body (101) or spirally extends along the axial direction thereof, so as to form a plurality of crushing cutter edges, and two adjacent cutter grains (202) in each crushing cutter edge are tightly attached to each other.

3. An arbor structure as defined in claim 2, wherein the adjacent two blades (202) of each crushing blade are angularly offset in the circumferential direction of the arbor body (101), and the offset directions of the blades (202) at the two ends of the crushing blade are opposite to each other, thereby forming a V-shaped or W-shaped crushing blade.

4. An arbor structure as defined in claim 1, wherein the cross-section of the cutting insert (202) is square, the arbor body (101) is provided with a V-shaped mounting groove (103) on the cylindrical surface thereof for fitting the cutting insert (202), and the cutting insert (202) is mounted in the V-shaped mounting groove (103) such that the outer side thereof protrudes from the cylindrical surface.

5. The cutter shaft structure as claimed in claim 4, wherein the widths of the two side walls of the V-shaped mounting groove (103) are adapted to the widths of the side walls corresponding to the two adjacent side edges of the square section of the cutter blade (202), so that the V-shaped mounting groove (103) completely covers the two side walls of the cutter blade (202).

6. The arbor structure of claim 5, wherein the arbor body (101) is provided with a tool seat (201) having a threaded through hole in the mounting groove, the insert (202) is provided with a threaded connecting hole corresponding to the threaded through hole, the insert (202) is inserted into the connecting threaded connecting hole from the threaded through hole of the tool seat (201) by a fastening bolt (203), and the insert (202) is completely fixed on the tool seat (201) by matching with the V-shaped mounting groove (103).

7. A cutter shaft structure as claimed in claim 6, wherein the tool holder (201) is welded to the V-shaped mounting groove (103).

8. The cutter shaft structure as claimed in claim 1, wherein the cutter shaft main body (101) is provided with a tool-receiving groove (104) at the cutting end of the blade (202), and the bottom surface of the tool-receiving groove (104) is lower than the bottom surface of the mounting groove (103).

9. The arbor structure of claim 8, wherein the projected width of the tool-feeding slot (104) in the axial direction of the arbor main body (101) is equal to the projected width of the blade (202) in the axial direction of the arbor main body (101).

10. A single-shaft crusher comprising a shaft and a stationary knife (102) cooperating with the shaft for cutting, characterized in that the shaft is provided with a shaft construction according to any of claims 1-9.