WO2023090551A1 - Separable pulverization roller assembly - Google Patents

Separable pulverization roller assembly Download PDF

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Publication number
WO2023090551A1
WO2023090551A1 PCT/KR2022/006199 KR2022006199W WO2023090551A1 WO 2023090551 A1 WO2023090551 A1 WO 2023090551A1 KR 2022006199 W KR2022006199 W KR 2022006199W WO 2023090551 A1 WO2023090551 A1 WO 2023090551A1
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Prior art keywords
cover
inner ring
ring member
roller assembly
cover unit
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PCT/KR2022/006199
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French (fr)
Korean (ko)
Inventor
김기원
김종훈
김우종
Original Assignee
(주)코리아테크
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Publication of WO2023090551A1 publication Critical patent/WO2023090551A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs

Definitions

  • the present invention relates to a pulverizing roller assembly, and more particularly, to a pulverizing roller assembly installed and used in a pulverizer that receives and pulverizes pulverizing materials.
  • crushers are used to grind pulverized materials.
  • a crusher is used for crushing solid fuels such as coal or biomass or crushing stones for producing cement.
  • a rotatably supported crushing table 4 is installed inside the housing 2 inside the housing 2.
  • the crushing roller assembly 5 is rotatably supported and installed on the crushing rotation shaft 17.
  • the grinding table 4 is rotated while the grinding material is supplied through the grinding material supply pipe 7 on the upper side of the housing 2, the grinding roller assembly 5 crushes the grinding material.
  • the crushing roller assembly 5 rolls with respect to the crushing table 4 by driving the crushing table 4 to press and crush the crushing material.
  • the pulverized material thus pulverized is moved upward by conveying air supplied through the air supply duct 3 and is discharged through the outlet port 9 .
  • Patent Document 1 The specific structure of such a grinder is disclosed in Patent Document 1.
  • the crushing roller assembly used in such a crusher requires very high wear resistance because it is exposed to shock and vibration for a long time and comes into high-pressure contact with the crushing material.
  • the casting method is a method in which the grinding roller assembly is integrally cast using chrome steel, processed, and heat treated.
  • large-sized equipment is required, resulting in increased manufacturing cost.
  • the welding coating method is a method in which an approximate shape of the crushing roller assembly is manufactured using low carbon steel and then coated with a welding rod of high hardness steel on the surface of the low carbon steel.
  • the crushing roller assembly manufactured by this method has problems in that cracks frequently occur on the surface during manufacture and durability is low.
  • such a conventional crushing roller assembly has a problem of shortening the life of the welding base material. Therefore, there is a problem of increasing the maintenance cost of the crusher.
  • the present invention has been made to solve the problems described above, and an object of the present invention is to provide a separable grinding roller assembly having a structure with low manufacturing cost and low maintenance cost.
  • the present invention provides a housing for receiving grinding materials, a grinding table disposed below the inside of the housing and rotatably installed, and disposed above the grinding table with respect to the housing.
  • a crushing device comprising: a crushing rotary shaft rotatably installed; and a detachable crushing roller assembly installed on the crushing rotary shaft to roll against the crushing table and crush the crushing material disposed on the crushing table when the crushing table rotates.
  • an inner ring member formed in a ring shape and coupled to the crushing rotation shaft; and a cover unit formed to surround an outer circumference of a portion of the inner ring member facing the crushing table in a circumferential direction and coupled to the inner ring member.
  • the separable crushing roller assembly of the present invention has an effect of manufacturing a high-performance and high-quality separable crushing roller assembly at low cost by configuring the structure in which the inner ring member and the cover unit are separately provided and assembled.
  • the separable grinding roller assembly of the present invention has an effect of reducing the maintenance cost of the grinding machine by being composed of a structure in which maintenance of the worn separation type grinding roller assembly is easy.
  • FIG. 1 schematically illustrates an example of a grinder in which a detachable grinder roller assembly according to the present invention is used.
  • FIG. 2 is a front view of a detachable crushing roller assembly according to a first embodiment of the present invention.
  • FIG. 3 is an exploded perspective view of the detachable grinding roller assembly shown in FIG. 2;
  • FIG. 4 is a cross-sectional view of the detachable grinding roller assembly shown in FIG. 2;
  • FIG. 5 is a front view of a separable grinding roller assembly according to a second embodiment of the present invention.
  • FIG. 6 is an exploded perspective view of the detachable grinding roller assembly shown in FIG. 5;
  • FIG. 7 is an exploded perspective view showing only a portion of the detachable crushing roller assembly shown in FIG. 5 .
  • FIG. 8 is an exploded perspective view of a detachable crushing roller assembly according to a third embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of the detachable grinding roller assembly shown in FIG. 8.
  • FIG. 1 schematically illustrates an example of a grinder in which a detachable grinder roller assembly according to the present invention is used.
  • FIG. 2 is a front view of a detachable grinding roller assembly according to a first embodiment of the present invention
  • FIG. 3 is an exploded perspective view of the detachable grinding roller assembly shown in FIG. 2
  • FIG. 4 is a view of the detachable grinding roller assembly shown in FIG. it is a cross section
  • the separable grinding roller assembly according to the first embodiment of the present invention includes an inner ring member 1100 and a cover unit 1200 .
  • the inner ring member 1100 is formed in a ring shape and is formed to be coupled to the crushing rotation shaft of the crushing device.
  • the inner ring member 1100 includes a ring body 1110 and a fixing groove 1120.
  • the ring body portion 1110 is formed in a ring shape.
  • the ring body portion 1110 serves to couple and support the cover unit 1200 with respect to the crushing rotation shaft by being coupled to and fixed to the crushing rotation shaft.
  • a fixing groove 1120 is formed on the outer circumferential surface of the body of the ring body 1110 along the circumferential direction.
  • fixing grooves 1120 are formed in two rows along the circumferential direction.
  • a fixing protrusion 1222 of the cover unit 1200 to be described later is inserted into the fixing groove 1120 .
  • the cover unit 1200 is a portion that surrounds the outer circumferential surface of the inner ring member 1100 along the circumferential direction.
  • the cover unit 1200 is coupled to the inner ring member 1100 and serves to crush the grinding material by pressing the grinding material against the grinding table.
  • the cover unit 1200 is arranged so as to surround the outer circumferential surface of the portion where the inner ring member 1100 faces the grinding table along the circumferential direction of the inner ring member 1100 .
  • the cover unit 1200 includes a plurality of cover segments 1210 .
  • a plurality of cover segments 1210 are arranged along the circumferential direction of the inner ring member 1100 and coupled to the inner ring member 1100, respectively.
  • each cover segment 1210 is formed in the same shape as each other and disposed to contact adjacent cover segments 1210 with each other. That is, it is arranged so that there is no gap between adjacent cover segments 1210 .
  • the cover segments 1210 are composed of two cover members 1211 and 1212 .
  • the two cover members 1211 and 1212 are arranged along the width direction of the inner ring member 1100 .
  • the two cover members may be formed in a shape symmetrical to each other, but in the case of the present embodiment, they are formed in an asymmetrical shape as shown in FIGS. 2 to 4 . That is, each cover member is not formed by dividing the cover unit 1200 into two parts along the width direction of the inner ring member 1100, but one of the cover members 1211 and 1212 is formed larger than the other one. do.
  • the cover members 1211 disposed on one side of the inner ring member 1100 extend longer along the width direction of the inner ring member 1100 than the cover members 1212 disposed on the opposite side.
  • the cover members 1211 in the direction in which a greater abrasion will occur while grinding the grinding material can be made larger.
  • the size, thickness, shape, and material of the cover members 1211 and 1212 can be variously designed and changed as needed.
  • Each of the cover members 1211 and 1212 includes a fixing protrusion 1222 extending toward the inner ring member 1100 . Positions of the cover members 1211 and 1212 in the width direction are fixed by inserting the fixing protrusions 1222 of the cover members 1211 and 1212 into the fixing grooves 1120 of the inner ring member 1100 .
  • a through hole 112 is formed in each of the cover members 1211 and 1212 .
  • Coupling holes 111 are formed in the inner ring member 1100 corresponding to the through holes 112 of the cover members 1211 and 1212, respectively.
  • the coupling bolts 113 are fastened to the coupling holes 111 of the inner ring member 1100 via the through holes 112 of the cover members 1211 and 1212, respectively, the cover members 1211 and 1212 are connected to the inner ring members. (1100).
  • some of the coupling holes 111 are formed in the cover members 1211 and 1212 . That is, a coupling hole 111 is formed in the fixing protrusion 1222 of the cover members 1211 and 1212, and a through hole 112 is formed in the inner ring member 1100 corresponding to the coupling hole 111. is formed That is, at a position adjacent to the fixing groove 1120, the coupling bolt 113 is fastened to the coupling hole 111 of the cover members 1211 and 1212 via the through hole 112 of the inner ring member 1100.
  • helical inserts 114 are inserted and installed into the coupling holes 111, respectively.
  • the coupling bolts 113 are fastened to the coupling holes 111 through helical inserts 114, respectively.
  • the coupling bolt 113 can stably maintain a fastened state to the coupling hole 111 due to the helical insert 114 .
  • the cover unit 1200 is coupled to the inner ring member 1100 in a detachable manner. That is, the cover unit 1200 can be easily separated from the inner ring member 1100 by unscrewing the coupling bolt 113 from the coupling hole 111 .
  • the separable grinding roller assembly constructed as described above is assembled and used in the same state as shown in FIG. 2 .
  • the separable grinding roller assembly of this embodiment is installed and used in a type of grinding device as shown in FIG. 1 . That is, the separation-type grinding roller assembly of the present embodiment is mounted on the crushing rotation shaft of the crushing device, and the crushing rotation shaft and the inner ring member 1100 are coupled to each other. In this case, an appropriate distance may exist between the detachable pulverizing roller assembly and the pulverizing table according to the size of the particles to be pulverized.
  • the grinding material may be coal or stone for cement production.
  • Feeding grinding material into the housing and rotating the grinding table causes the detachable grinding roller assembly to roll against the grinding table.
  • the pulverizing material between the pulverizing table and the detachable pulverizing roller assembly is pulverized by the pressing force of the detachable pulverizing roller assembly.
  • the cover unit 1200 of the detachable crushing roller assembly is worn out. As the wear of the cover unit 1200 progresses, the pulverization performance of the pulverizer deteriorates. In this way, when the cover unit 1200 is worn beyond the limit, the separable grinding roller assembly needs to be replaced.
  • the inner ring member 1100 can be reused and only the cover unit 1200 can be replaced. Since the separable grinding roller assembly of the present embodiment has a structure in which the cover unit 1200 is detachably coupled to the inner ring member 1100, only the cover unit 1200 is separated from the inner ring member 1100 to create a new cover. It is possible to replace with unit 1200. That is, overall maintenance costs can be reduced by reusing the inner ring member 1100 and replacing only the cover unit 1200 without replacing the entire separable grinding roller assembly with a new one.
  • the separable grinding roller assembly of this embodiment has the advantage of low manufacturing cost.
  • the inner ring member 1100 is manufactured using low-carbon steel that is easy to weld or process, and the cover unit 1200 can be separately manufactured from high-hardness special steel. Unlike conventional crushing roller assemblies, it is possible to manufacture a separable crushing roller assembly at a very low cost because there is no need to make the entire structure of high-hardness special steel.
  • the manufacturing cost of the separable grinding roller assembly can be drastically reduced.
  • the size of the cover segment 1210 is smaller than the size of the entire separable grinding roller assembly, it is easier to manufacture the individual cover segments 1210 by processing metal, so the process cost is lowered.
  • the smaller the volume of the cover segment 1210 is, the easier it is to perform heat treatment such as quenching, so that the cover segment 1210 with high hardness can be manufactured at a relatively low cost.
  • the heat capacity for heating or cooling the cover segment 1210 decreases as the volume of the cover segment 1210 decreases, it is easy to effectively quench the cover segment 1210 and secure high hardness characteristics by quenching.
  • cover segment 1210 as two cover members 1211 and 1212
  • additional maintenance cost savings can be expected.
  • the cover member disposed closer to the grinding table among the two cover members 1211 and 1212 constituting the cover segment 1210 ( 1211) progresses more rapidly. Therefore, of the two types of cover members 1211 and 1212 constituting the cover segment 1210, only the cover member 1212 of the side with more wear is replaced and used, thereby reducing the maintenance cost of the separable grinding roller assembly.
  • the cover member 1211 disposed closer to the crushing table may be larger than the cover members 1211 and 1212 on the opposite side, as in the present embodiment.
  • the cover member 1211 disposed closer to the grinding table is made of a material with high strength and hardness, such as chrome steel or high carbon steel, and the opposite cover member 1212 is relatively Therefore, it is possible to reduce the overall manufacturing cost by composing the material with low strength and hardness.
  • the cover segment 2210 is composed of three cover members 2211 and 2212 .
  • the plurality of cover segments 2210 are composed of a center cover member 2211 and two side cover members 2212, respectively.
  • the center cover member 2211 is disposed on the outer circumferential surface of the central portion in the width direction of the inner ring member 2100, and the side cover members 2212 are disposed on both sides of the center cover member 2211, respectively.
  • two rows of fixing grooves 2120 are formed in the ring body 2110 of the inner ring member 2100 .
  • Fixing protrusions 2222 are formed on each of the side cover members 2212 on both sides. As the fixing protrusions 2222 of the side cover member 2212 are inserted into the fixing grooves 2120 of the inner ring member 2100, respectively, the position in the width direction is fixed.
  • coupling holes 111 are formed in the center cover member 2211 and the side cover member 2212, respectively, and the inner ring member 2100 has a corresponding coupling hole 111.
  • a through hole 112 is formed at the location.
  • the coupling bolt 113 is inserted into the through hole 112 in the radial direction from the inside of the inner ring member 2100 and is fastened to the coupling hole 111 of the center cover member 2211 or the side cover member 2212.
  • the helical insert 114 may be inserted into the coupling hole 111 in the case of the separable grinding roller assembly of the second embodiment.
  • the separable grinding roller assembly of the second embodiment also uses the cover unit 2200 composed of a plurality of cover segments 2210, thereby reducing the manufacturing cost of the separable grinding roller assembly and providing high performance.
  • a separable grinding roller assembly of can be easily manufactured.
  • the inner ring member 2100 can be reused and only the cover segments 2210 can be replaced, thereby reducing maintenance costs of the separable grinding roller assembly.
  • cover segment 2210 which is small compared to the overall size of the separable grinding roller assembly, is made of high-hardness special steel at a relatively low cost, the manufacturing cost of the separable grinding roller assembly can be reduced and the service life can be extended.
  • the cover segment 3210 is formed integrally with the cover member instead of being separated.
  • Each cover segment 3210 is formed to cover the inner ring member 3100 along the width direction.
  • a plurality of cover segments 3210 are arranged to come into contact with each other along the circumferential direction and surround the outer circumferential surface of the inner ring member 3100 in the circumferential direction.
  • Two rows of fixing grooves 3120 are formed in the ring body 3110 of the inner ring member 3100, and two fixing protrusions 3222 are formed in the cover segment 3210, respectively.
  • the fixing protrusions 3222 of the cover segment 3210 are inserted into the fixing grooves 3120 of the inner ring member 3100, the position of the cover segment 3210 in the width direction is fixed.
  • a through hole 112 is formed in the inner ring member 3100, and a coupling hole 111 is formed in a position corresponding to the through hole 112 in the cover segment 3210. do.
  • the coupling bolt 113 is fastened to the coupling hole 111 of the cover segment 3210 via the through hole 112 of the inner ring member 3100 .
  • the helical insert 114 may be inserted into the coupling hole 111 .
  • some of the coupling holes 111 are formed in the fixing protrusion 3222, and some of the through holes 112 are formed to pass through the fixing groove 3120. Accordingly, the coupling bolt 113 is fastened to the fixing protrusion 3222 inserted into the fixing groove 3120, thereby coupling the cover segment 3210 to the inner ring member 3100. The other coupling bolt 113 is fastened at the center of the inner ring member 3100 and the cover segment 3210 to couple the cover segment 3210 to the inner ring member 3100.
  • the separation type grinding roller assembly of the third embodiment can be expected to reduce manufacturing cost and maintenance cost.
  • the separation type grinding roller assembly of the third embodiment can also describe the effect of life extension.
  • cover segments 1210, 2210, and 3210 have been described as being arranged to be in contact with the adjacent cover segments 1210, 2210, and 3210, but in some cases, a cover such that a gap exists between the cover segments. It is also possible to form a unit. Even when the cover segment is composed of a plurality of cover members, the cover segment may be configured such that there is a gap between the cover members.
  • the size, shape, and number of the cover segments and cover members may be variously modified as needed.
  • cover units 1200, 2200, and 3200 are coupled to the inner ring members 1100, 2100, and 3100 by the coupling bolt 113 .
  • the cover unit may be coupled to the inner ring member using a variety of other methods, such as fitting.
  • the cover unit may be coupled to the inner ring member by using a separate fixing member or a fixing mechanical element.
  • the cover member may be coupled to the inner ring member by coupling a fixing member formed to be caught on the top or side surface of the cover unit to the inner ring member.
  • a cutting method may be used to separate the cover unit from the inner ring member. That is, when replacing a cover unit for maintenance, the existing cover unit is cut and separated from the inner ring member, and a new cover unit is used after being coupled to the inner ring member.
  • the plurality of cover segments 1210, 2210, and 3210 have the same shape
  • two or more types of cover segments having different shapes are used in combination to form a separable grinding roller assembly. It is also possible. For example, it is also possible to configure the separable crushing roller assembly by providing two types of cover segments and alternately arranging the two types of cover segments along the circumferential direction of the inner ring member.
  • cover segments 1210 and 2210 composed of a plurality of cover members 1211, 1212, 2211 and 2212 as in the first and second embodiments described above, the number of cover members is necessary. can be changed in various ways depending on
  • cover units 1200, 2200, and 3200 are detachably coupled to the inner ring members 1100, 2100, and 3100 has been described as an example, but in some cases, as in the method of bonding and welding described above. It is also possible to couple the cover unit to the inner ring member in a non-removable manner. Even in the case of the separable grinding roller assembly having such a structure, since individual cover segments can be made of high-hardness special steel material easily and at low cost, it can have sufficient durability and economy compared to conventional grinding roller assemblies.
  • cover segments 1210, 2210, and 3210 have been described and illustrated as having fixing protrusions, in some cases, it is also possible to construct a separable grinding roller assembly so that only some of the cover segments have fixing protrusions.
  • a separable grinding roller assembly having a structure that does not include the fixing protrusion 1222 and the fixing groove 1120 .
  • the number of fixing protrusions and fixing grooves can also be variously changed.
  • cover segments 1210 constituting the cover unit 1200 may be variously changed as needed. It is also possible to construct the cover unit from two cover segments, for example with a semicircular structure.
  • each cover segment may be coupled to the inner ring member using one coupling bolt, or each cover segment may be coupled to the inner ring member using two or more coupling bolts.
  • a structure for arranging coupling bolts, coupling holes, through holes, etc. in the cover segment can also be changed in various ways.
  • the cover unit is not divided into cover segments but is formed in a ring shape to form a separable grinding roller assembly using a cover unit. It is also possible to configure.
  • the separable crushing roller assembly may be configured in such a way that a cover unit also formed in a ring shape is assembled to an inner ring member formed in a ring shape.
  • the outer surface of the inner ring member and the inner surface of the cover unit, where the inner ring member and the cover unit come in contact with each other may be formed to extend in a circular shape, or may be formed in a polygonal shape to correspond to each other to prevent relative rotation.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

The present invention relates to a separable pulverization roller assembly and, more particularly, to a separable pulverization roller assembly installed and used in a pulverizer which receives and pulverizes materials for pulverization. The separable pulverization roller assembly of the present invention is configured to have a structure in which an inner ring member and a cover unit are separately provided and assembled, and thus, there is an effect of manufacturing a high-performance and high-quality separable pulverization roller assembly at a low cost. In addition, the separable pulverization roller assembly of the present invention is configured to have a structure in which maintenance is easy when worn out, thereby having the effect of reducing the maintenance cost of a pulverizer.

Description

분리형 분쇄 롤러 조립체Detachable Grinding Roller Assembly
본 발명은 분쇄 롤러 조립체에 관한 것으로, 더욱 상세하게는 분쇄 자재를 공급 받아 분쇄하는 분쇄기에 설치되어 사용되는 분리형 분쇄 롤러 조립체에 관한 것이다.The present invention relates to a pulverizing roller assembly, and more particularly, to a pulverizing roller assembly installed and used in a pulverizer that receives and pulverizes pulverizing materials.
화력 발전소와 시멘트 공장 등에는 분쇄 자재를 분쇄하기 위한 분쇄기가 사용된다. 석탄이나 바이오매스 등과 같은 고체 연료를 분쇄하거나 시멘트를 제조하기 위한 석재를 분쇄하는 용도로 분쇄기가 사용된다.BACKGROUND OF THE INVENTION In thermal power plants and cement factories, crushers are used to grind pulverized materials. A crusher is used for crushing solid fuels such as coal or biomass or crushing stones for producing cement.
도 1은 이와 같은 분쇄기의 일례를 도시한 것이다.1 shows an example of such a grinder.
하우징(2)의 내부에는 회전 가능하게 지지되는 분쇄 테이블(4)이 설치된다. 분쇄 테이블(4)의 상측에는 분쇄 롤러 조립체(5)가 분쇄 회전축(17)에 회전 가능하게 지지되어 설치된다. 하우징(2) 상측의 분쇄 자재 공급관(7)을 통해 분쇄 자재를 공급하면서 분쇄 테이블(4)을 회전시키면 분쇄 롤러 조립체(5)에 의해 분쇄 자재가 분쇄된다. Inside the housing 2, a rotatably supported crushing table 4 is installed. Above the crushing table 4, the crushing roller assembly 5 is rotatably supported and installed on the crushing rotation shaft 17. When the grinding table 4 is rotated while the grinding material is supplied through the grinding material supply pipe 7 on the upper side of the housing 2, the grinding roller assembly 5 crushes the grinding material.
분쇄 테이블(4)의 구동에 의해 분쇄 롤러 조립체(5)가 분쇄 테이블(4)에 대해 구르면서 분쇄 자재를 가압하여 분쇄하게 된다. 이와 같이 분쇄된 분쇄 자재는 공기 공급 덕트(3)를 통해 공급된 반송용 공기에 의해 상측으로 이동하여 출구 포트(9)로 배출된다. The crushing roller assembly 5 rolls with respect to the crushing table 4 by driving the crushing table 4 to press and crush the crushing material. The pulverized material thus pulverized is moved upward by conveying air supplied through the air supply duct 3 and is discharged through the outlet port 9 .
이와 같은 분쇄기의 구체적인 구조는 특허문헌 1에 개시되어 있다.The specific structure of such a grinder is disclosed in Patent Document 1.
이와 같은 분쇄기에 사용되는 분쇄 롤러 조립체는 장시간 충격과 진동에 노출되고 분쇄 자재와 고압 접촉하므로 매우 높은 내마모성이 요구된다.The crushing roller assembly used in such a crusher requires very high wear resistance because it is exposed to shock and vibration for a long time and comes into high-pressure contact with the crushing material.
분쇄 롤러 조립체가 파손되거나 마모되어 교체하는 경우, 교체 작업에 많은 시간과 비용이 소요되고 그 기간 동안 분쇄기를 가동할 수 없으므로 분쇄 원가의 상승을 초래한다.When the grinding roller assembly is damaged or worn out and replaced, the replacement operation takes a lot of time and money, and the grinding roller assembly cannot be operated during that period, resulting in an increase in grinding cost.
이와 같은 분쇄 롤러 조립체를 제작하는 데에는 종래에 주조 방식과 용접 코팅 방식에 의해 주로 제작되었다. In order to manufacture such a crushing roller assembly, it has been mainly produced by a conventional casting method and a welding coating method.
주조 방식은 크롬강을 이용하여 분쇄 롤러 조립체를 일체로 주조하고 가공하여 열처리하는 방식이다. 상당한 크기와 무게를 가지는 분쇄 롤러 조립체를 주조에 의해 제작하고 열처리 하기 위해서는 그에 맞는 대형 장비가 필요하고 결과적으로 제조 원가를 높이는 원인이 된다. 또한, 분쇄 롤러 조립체의 내마모성을 향상시키기 위하여 이와 같이 큰 부피를 가지는 분쇄 롤러 조립체를 열처리하는 데에 어려움이 있다. 분쇄 롤러 조립체의 부피로 인해 전체적인 열용량이 크기 때문에 분쇄 롤러 조립체를 급랭하여 담금질을 하기 어려운 문제점이 있다. 이러한 문제점은 분쇄 롤러 조립체의 원가를 높이는 원인이 된다. 또한, 이와 같은 방식에 의해 제조된 분쇄 롤러 조립체는 재사용이 불가능한 문제점이 있다. The casting method is a method in which the grinding roller assembly is integrally cast using chrome steel, processed, and heat treated. In order to manufacture and heat-treat a crushing roller assembly having a significant size and weight by casting, large-sized equipment is required, resulting in increased manufacturing cost. In addition, it is difficult to heat-treat the crushing roller assembly having such a large volume in order to improve the wear resistance of the crushing roller assembly. Since the overall heat capacity is large due to the volume of the crushing roller assembly, it is difficult to quench the crushing roller assembly by rapid cooling. These problems cause an increase in the cost of the crushing roller assembly. In addition, there is a problem in that the crushing roller assembly manufactured by this method cannot be reused.
용접 코팅 방식은 저탄소강을 이용하여 분쇄 롤러 조립체의 대략적인 형상을 제작한 후 저탄소 강의 표면에 고경도강의 용접봉으로 코팅하여 제작하는 방식이다. 이와 같은 방법에 의해 제조된 분쇄 롤러 조립체는 제작시에 표면에 크랙이 자주 발생하고 내구성이 낮은 문제점이 있다. 또한 이와 같은 종래의 분쇄 롤러 조립체는 용접 모재의 수명을 단축시키는 문제점이 있다. 따라서, 분쇄기의 유지 보수 비용을 증가시키는 문제점이 있다.The welding coating method is a method in which an approximate shape of the crushing roller assembly is manufactured using low carbon steel and then coated with a welding rod of high hardness steel on the surface of the low carbon steel. The crushing roller assembly manufactured by this method has problems in that cracks frequently occur on the surface during manufacture and durability is low. In addition, such a conventional crushing roller assembly has a problem of shortening the life of the welding base material. Therefore, there is a problem of increasing the maintenance cost of the crusher.
본 발명은 상술한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 제조 원가가 낮고 유지 보수 비용이 저렴한 구조를 가지는 분리형 분쇄 롤러 조립체를 제공하는 것을 목적으로 한다.The present invention has been made to solve the problems described above, and an object of the present invention is to provide a separable grinding roller assembly having a structure with low manufacturing cost and low maintenance cost.
상술한 바와 같은 목적을 해결하기 위해서 본 발명은, 분쇄 자재를 공급받는 하우징과, 상기 하우징의 내부 하측에 배치되어 회전 가능하게 설치되는 분쇄 테이블과, 상기 분쇄 테이블의 상측에 배치되어 상기 하우징에 대해 회전 가능하게 설치되는 분쇄 회전축과, 상기 분쇄 테이블이 회전할 때 상기 분쇄 테이블에 대해 구르면서 상기 분쇄 테이블 위에 배치된 상기 분쇄 자재를 분쇄하도록 상기 분쇄 회전축에 설치되는 분리형 분쇄 롤러 조립체를 포함하는 분쇄 장치의 상기 분리형 분쇄 롤러 조립체에 있어서, 링(ring) 형태로 형성되어 상기 분쇄 회전축에 결합되는 내측 링 부재; 및 상기 내측 링 부재의 상기 분쇄 테이블과 마주하는 부분의 외주를 원주 방향을 따라 감싸도록 형성되어 상기 내측 링 부재에 결합되는 커버 유닛;을 포함하는 점에 특징이 있다.In order to solve the above object, the present invention provides a housing for receiving grinding materials, a grinding table disposed below the inside of the housing and rotatably installed, and disposed above the grinding table with respect to the housing. A crushing device comprising: a crushing rotary shaft rotatably installed; and a detachable crushing roller assembly installed on the crushing rotary shaft to roll against the crushing table and crush the crushing material disposed on the crushing table when the crushing table rotates. In the separation-type crushing roller assembly, an inner ring member formed in a ring shape and coupled to the crushing rotation shaft; and a cover unit formed to surround an outer circumference of a portion of the inner ring member facing the crushing table in a circumferential direction and coupled to the inner ring member.
본 발명의 분리형 분쇄 롤러 조립체는, 내측 링 부재와 커버 유닛을 별도로 마련하여 조립하는 구조로 구성함으로써 고성능 및 고품질의 분리형 분쇄 롤러 조립체를 낮은 원가에 제작할 수 있는 효과가 있다. The separable crushing roller assembly of the present invention has an effect of manufacturing a high-performance and high-quality separable crushing roller assembly at low cost by configuring the structure in which the inner ring member and the cover unit are separately provided and assembled.
또한, 본 발명의 분리형 분쇄 롤러 조립체는, 마모된 분리형 분쇄 롤러 조립체의 유지 보수가 용이한 구조로 구성됨으로써 분쇄기의 유지 보수 비용을 절감할 수 있는 효과가 있다.In addition, the separable grinding roller assembly of the present invention has an effect of reducing the maintenance cost of the grinding machine by being composed of a structure in which maintenance of the worn separation type grinding roller assembly is easy.
도 1은 본 발명에 따른 분리형 분쇄 롤러 조립체가 사용되는 분쇄기의 일례를 개략적으로 도시한 것이다.1 schematically illustrates an example of a grinder in which a detachable grinder roller assembly according to the present invention is used.
도 2는 본 발명의 제1실시예에 따른 분리형 분쇄 롤러 조립체의 정면도이다.2 is a front view of a detachable crushing roller assembly according to a first embodiment of the present invention.
도 3은 도 2에 도시된 분리형 분쇄 롤러 조립체의 분리 사시도이다.3 is an exploded perspective view of the detachable grinding roller assembly shown in FIG. 2;
도 4는 도 2에 도시된 분리형 분쇄 롤러 조립체의 단면도이다.4 is a cross-sectional view of the detachable grinding roller assembly shown in FIG. 2;
도 5는 본 발명의 제2실시예에 따른 분리형 분쇄 롤러 조립체의 정면도이다.5 is a front view of a separable grinding roller assembly according to a second embodiment of the present invention.
도 6은 도 5에 도시된 분리형 분쇄 롤러 조립체의 분리 사시도이다.6 is an exploded perspective view of the detachable grinding roller assembly shown in FIG. 5;
도 7은 도 5에 도시된 분리형 분쇄 롤러 조립체의 일부분만을 도시한 분리 사시도이다.FIG. 7 is an exploded perspective view showing only a portion of the detachable crushing roller assembly shown in FIG. 5 .
도 8은 본 발명의 제3실시예에 따른 분리형 분쇄 롤러 조립체의 분리사시도이다.8 is an exploded perspective view of a detachable crushing roller assembly according to a third embodiment of the present invention.
도 9는 도 8에 도시된 분리형 분쇄 롤러 조립체의 단면도이다.9 is a cross-sectional view of the detachable grinding roller assembly shown in FIG. 8;
이하에서는 첨부된 도면을 참조하여, 본 발명에 따른 분리형 분쇄 롤러 조립체의 실시예들에 대해 상세히 설명한다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a separable grinding roller assembly according to the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 분리형 분쇄 롤러 조립체가 사용되는 분쇄기의 일례를 개략적으로 도시한 것이다.1 schematically illustrates an example of a grinder in which a detachable grinder roller assembly according to the present invention is used.
이하에서는 도 1에 도시된 분쇄기와 동일하거나 유사한 구조를 가지는 분쇄기에 설치하여 사용되는 것을 예로 들어 본 발명의 분리형 분쇄 롤러 조립체에 대해 설명한다.Hereinafter, the separable grinding roller assembly of the present invention will be described taking as an example that it is installed and used in a grinder having the same or similar structure as the grinder shown in FIG. 1.
도 2는 본 발명의 제1실시예에 따른 분리형 분쇄 롤러 조립체의 정면도이고, 도 3은 도 2에 도시된 분리형 분쇄 롤러 조립체의 분리 사시도이며, 도 4는 도 2에 도시된 분리형 분쇄 롤러 조립체의 단면도이다.2 is a front view of a detachable grinding roller assembly according to a first embodiment of the present invention, FIG. 3 is an exploded perspective view of the detachable grinding roller assembly shown in FIG. 2, and FIG. 4 is a view of the detachable grinding roller assembly shown in FIG. it is a cross section
도 2 내지 도 4를 참조하면, 본 발명의 제1실시예에 따른 분리형 분쇄 롤러 조립체는 내측 링 부재(1100)와 커버 유닛(1200)을 포함하여 이루어진다.Referring to FIGS. 2 to 4 , the separable grinding roller assembly according to the first embodiment of the present invention includes an inner ring member 1100 and a cover unit 1200 .
내측 링 부재(1100)는 링 형태로 형성되어 분쇄 장치의 분쇄 회전축에 결합되도록 형성된다. 내측 링 부재(1100)는 링 몸체부(1110)와 고정 홈(1120)을 구비한다. The inner ring member 1100 is formed in a ring shape and is formed to be coupled to the crushing rotation shaft of the crushing device. The inner ring member 1100 includes a ring body 1110 and a fixing groove 1120.
링 몸체부(1110)는 링 형태로 형성된다. 링 몸체부(1110)는 분쇄 회전축에 결합되어 고정됨으로써, 커버 유닛(1200)을 분쇄 회전축에 대해 커버 유닛(1200)을 결합시키고 지지하는 역할을 한다. The ring body portion 1110 is formed in a ring shape. The ring body portion 1110 serves to couple and support the cover unit 1200 with respect to the crushing rotation shaft by being coupled to and fixed to the crushing rotation shaft.
링 몸체부(1110)의 몸체부의 외주면에는 원주 방향을 따라 고정 홈(1120)이 형성된다. 본 실시예의 경우 도 4에 도시한 것과 같이 원주 방향을 따라 2열로 고정 홈(1120)이 형성된다. 고정 홈(1120)에는 후술하는 커버 유닛(1200)의 고정 돌기(1222)가 삽입된다.A fixing groove 1120 is formed on the outer circumferential surface of the body of the ring body 1110 along the circumferential direction. In the case of this embodiment, as shown in FIG. 4, fixing grooves 1120 are formed in two rows along the circumferential direction. A fixing protrusion 1222 of the cover unit 1200 to be described later is inserted into the fixing groove 1120 .
커버 유닛(1200)은 내측 링 부재(1100)의 외주면을 원주 방향을 따라 감싸는 부분이다. 커버 유닛(1200)은 내측 링 부재(1100)에 결합되어 분쇄 테이블에 대해 분쇄 자재를 가압함으로써, 분쇄 자재를 분쇄하는 역할을 한다. 따라서, 커버 유닛(1200)은 내측 링 부재(1100)가 분쇄 테이블과 마주하는 부분의 외주면을 내측 링 부재(1100)의 원주 방향을 따라 감싸도록 배치된다. The cover unit 1200 is a portion that surrounds the outer circumferential surface of the inner ring member 1100 along the circumferential direction. The cover unit 1200 is coupled to the inner ring member 1100 and serves to crush the grinding material by pressing the grinding material against the grinding table. Thus, the cover unit 1200 is arranged so as to surround the outer circumferential surface of the portion where the inner ring member 1100 faces the grinding table along the circumferential direction of the inner ring member 1100 .
커버 유닛(1200)은 복수의 커버 세그먼트(1210)를 구비한다. 복수의 커버 세그먼트(1210)는 내측 링 부재(1100)의 원주 방향을 따라 배열되어 각각 내측 링 부재(1100)에 결합된다. 본 실시예의 경우 도 2내지 도 4에 도시한 것과 같이 각각의 커버 세그먼트(1210)는 서로 동일한 형상으로 형성되고, 인접하는 커버 세그먼트(1210)와 서로 접촉하도록 배치된다. 즉, 인접하는 커버 세그먼트(1210)들의 사이에 갭이 존재하지 않도록 배치된다. The cover unit 1200 includes a plurality of cover segments 1210 . A plurality of cover segments 1210 are arranged along the circumferential direction of the inner ring member 1100 and coupled to the inner ring member 1100, respectively. In the case of the present embodiment, as shown in FIGS. 2 to 4 , each cover segment 1210 is formed in the same shape as each other and disposed to contact adjacent cover segments 1210 with each other. That is, it is arranged so that there is no gap between adjacent cover segments 1210 .
본 실시예의 경우 커버 세그먼트(1210)들은 두 개의 커버 부재(1211, 1212)로 구성된다. 두 개의 커버 부재(1211, 1212)들은 내측 링 부재(1100)의 폭 방향을 따라 배열된다. 2개의 커버 부재들은 서로 대칭되는 형상으로 형성될 수도 있으나, 본 실시예의 경우 도 2 내지 도 4에 도시한 것과 같이 서로 비대칭 형태로 형성된다. 즉, 내측 링 부재(1100)의 폭 방향을 따라 커버 유닛(1200)을 2등분하여 각각의 커버 부재들이 형성되는 것이 아니라, 커버 부재(1211, 1212)들 중 어느 하나는 다른 하나보다 더 크게 형성된다. 내측 링 부재(1100)의 일측에 배치되는 커버 부재(1211)들은 반대쪽에 배치되는 커버 부재(1212)들보다 내측 링 부재(1100)의 폭 방향을 따라 더 길게 연장되도록 형성된다. In the case of this embodiment, the cover segments 1210 are composed of two cover members 1211 and 1212 . The two cover members 1211 and 1212 are arranged along the width direction of the inner ring member 1100 . The two cover members may be formed in a shape symmetrical to each other, but in the case of the present embodiment, they are formed in an asymmetrical shape as shown in FIGS. 2 to 4 . That is, each cover member is not formed by dividing the cover unit 1200 into two parts along the width direction of the inner ring member 1100, but one of the cover members 1211 and 1212 is formed larger than the other one. do. The cover members 1211 disposed on one side of the inner ring member 1100 extend longer along the width direction of the inner ring member 1100 than the cover members 1212 disposed on the opposite side.
본 발명의 분리형 분쇄 롤러 조립체는 분쇄 테이블에 대해 기울어진 상태로 배치되어 회전하도록 사용되는 것이 일반적이므로, 분쇄 자재를 분쇄하면서 마모가 더 크게 발생하게 될 방향의 커버 부재(1211)들을 더 크게 구성할 수 있다. 커버 부재(1211, 1212)들의 크기, 두께, 형상, 재질은 필요에 따라 다양하게 설계 변경할 수 있다. Since the separable grinding roller assembly of the present invention is generally used to rotate while being disposed in a tilted state with respect to the grinding table, the cover members 1211 in the direction in which a greater abrasion will occur while grinding the grinding material can be made larger. can The size, thickness, shape, and material of the cover members 1211 and 1212 can be variously designed and changed as needed.
각각의 커버 부재(1211, 1212)들은 내측 링 부재(1100)를 향해 연장되는 고정 돌기(1222)를 구비한다. 커버 부재(1211, 1212)들의 고정 돌기(1222)를 내측 링 부재(1100)의 고정 홈(1120)에 삽입함으로써 커버 부재(1211, 1212)들의 폭 방향 위치가 고정된다.Each of the cover members 1211 and 1212 includes a fixing protrusion 1222 extending toward the inner ring member 1100 . Positions of the cover members 1211 and 1212 in the width direction are fixed by inserting the fixing protrusions 1222 of the cover members 1211 and 1212 into the fixing grooves 1120 of the inner ring member 1100 .
각각의 커버 부재(1211, 1212)들에는 관통 홀(112)이 형성된다. 커버 부재(1211, 1212)들의 관통 홀(112)과 각각 대응하는 위치의 내측 링 부재(1100)에는 결합 홀(111)이 형성된다. 결합 볼트(113)가 각각 커버 부재(1211, 1212)들의 관통 홀(112)을 경유하여 내측 링 부재(1100)의 결합 홀(111)에 체결됨으로써, 커버 부재(1211, 1212)들이 내측 링 부재(1100)에 결합된다. A through hole 112 is formed in each of the cover members 1211 and 1212 . Coupling holes 111 are formed in the inner ring member 1100 corresponding to the through holes 112 of the cover members 1211 and 1212, respectively. As the coupling bolts 113 are fastened to the coupling holes 111 of the inner ring member 1100 via the through holes 112 of the cover members 1211 and 1212, respectively, the cover members 1211 and 1212 are connected to the inner ring members. (1100).
도 4를 참조하면, 결합 홀(111) 중 일부는 커버 부재(1211, 1212)에 형성된다. 즉, 커버 부재(1211, 1212)의 고정 돌기(1222) 부분에는 결합 홀(111)이 형성되고, 그 결합 홀(111)와 대응하는 부분의 내측 링 부재(1100)에 관통 홀(112)이 형성된다. 즉, 고정 홈(1120)와 인접하는 위치에서는 결합 볼트(113)가 내측 링 부재(1100)의 관통 홀(112)을 경유하여 커버 부재(1211, 1212)의 결합 홀(111)에 체결된다. Referring to FIG. 4 , some of the coupling holes 111 are formed in the cover members 1211 and 1212 . That is, a coupling hole 111 is formed in the fixing protrusion 1222 of the cover members 1211 and 1212, and a through hole 112 is formed in the inner ring member 1100 corresponding to the coupling hole 111. is formed That is, at a position adjacent to the fixing groove 1120, the coupling bolt 113 is fastened to the coupling hole 111 of the cover members 1211 and 1212 via the through hole 112 of the inner ring member 1100.
본 실시예의 경우, 결합 홀(111)들에는 각각 헬리컬 인서트(114; 헬리서트 또는 헬리 코일이라고도 불린다.)가 삽입되어 설치된다. 결합 볼트(113)들은 각각 헬리컬 인서트(114)를 통해 결합 홀(111)에 체결된다. 이와 같이 헬리컬 인서트(114)를 사용하여 결합 볼트(113)를 결합 홀(111)에 체결함으로써, 결합 볼트(113)의 체결 상태를 안정적으로 유지할 수 있다. 커버 세그먼트(1210)에 강한 진동과 충격이 장시간 지속적으로 가해지더라도, 헬리컬 인서트(114)로 인해 결합 볼트(113)는 결합 홀(111)에 체결된 상태를 안정적으로 유지할 수 있다. In this embodiment, helical inserts 114 (also referred to as heliserts or heli-coils) are inserted and installed into the coupling holes 111, respectively. The coupling bolts 113 are fastened to the coupling holes 111 through helical inserts 114, respectively. In this way, by fastening the coupling bolt 113 to the coupling hole 111 using the helical insert 114, it is possible to stably maintain the fastening state of the coupling bolt 113. Even when strong vibration and impact are continuously applied to the cover segment 1210 for a long time, the coupling bolt 113 can stably maintain a fastened state to the coupling hole 111 due to the helical insert 114 .
이와 같이 결합 볼트(113)와 결합 홀(111)의 구성을 사용함으로써, 커버 유닛(1200)은 내측 링 부재(1100)에 착탈 가능하게 결합된다. 즉, 결합 볼트(113)를 결합 홀(111)에서 풀어냄으로써, 커버 유닛(1200)을 내측 링 부재(1100)로부터 용이하게 분리할 수 있다.By using the structure of the coupling bolt 113 and the coupling hole 111 in this way, the cover unit 1200 is coupled to the inner ring member 1100 in a detachable manner. That is, the cover unit 1200 can be easily separated from the inner ring member 1100 by unscrewing the coupling bolt 113 from the coupling hole 111 .
결합 홀(111) 및 관통 홀(112)의 위치와 방향은 도면에 도시한 형태 이외에 다른 다양한 형태로 변경 가능하다.The positions and directions of the coupling hole 111 and the through hole 112 can be changed in various other forms other than the form shown in the drawings.
이하, 상술한 바와 같이 구성된 본 실시예에 따른 분리형 분쇄 롤러 조립체의 사용 방법에 대해 설명한다. Hereinafter, a method of using the separable grinding roller assembly according to the present embodiment configured as described above will be described.
상술한 바와 같이 구성된 분리형 분쇄 롤러 조립체는, 도 2에 도시한 것과 같은 상태로 조립되어 사용된다. 본 실시예의 분리형 분쇄 롤러 조립체는 도 1에 도시한 것과 같은 형태의 분쇄 장치에 설치하여 사용한다. 즉, 분쇄 장치의 분쇄 회전축에 본 실시예의 분리형 분쇄 롤러 조립체를 장착하고, 분쇄 회전축과 내측 링 부재(1100)를 서로 결합시킨다. 이때, 분쇄 자재를 분쇄하고자 하는 입자의 크기에 따라서 분리형 분쇄 롤러 조립체와 분쇄 테이블 사이에는 적절한 간격이 존재할 수 있다.The separable grinding roller assembly constructed as described above is assembled and used in the same state as shown in FIG. 2 . The separable grinding roller assembly of this embodiment is installed and used in a type of grinding device as shown in FIG. 1 . That is, the separation-type grinding roller assembly of the present embodiment is mounted on the crushing rotation shaft of the crushing device, and the crushing rotation shaft and the inner ring member 1100 are coupled to each other. In this case, an appropriate distance may exist between the detachable pulverizing roller assembly and the pulverizing table according to the size of the particles to be pulverized.
분쇄 자재는 석탄일 수도 있고, 시멘트 제조를 위한 석재일 수도 있다. The grinding material may be coal or stone for cement production.
하우징 내부로 분쇄 자재를 공급하고 분쇄 테이블을 회전시키면, 분리형 분쇄 롤러 조립체는 분쇄 테이블에 대해 구르게 된다. 이때, 분쇄 테이블과 분리형 분쇄 롤러 조립체 사이의 분쇄 자재는 분리형 분쇄 롤러 조립체의 가압력에 의해 분쇄된다.Feeding grinding material into the housing and rotating the grinding table causes the detachable grinding roller assembly to roll against the grinding table. At this time, the pulverizing material between the pulverizing table and the detachable pulverizing roller assembly is pulverized by the pressing force of the detachable pulverizing roller assembly.
이와 같은 상태로 분쇄 장치를 장시간 사용하면, 분리형 분쇄 롤러 조립체의 커버 유닛(1200)은 마모된다. 커버 유닛(1200)의 마모가 진행될수록 분쇄 장치의 분쇄 성능은 저하된다. 이와 같이 커버 유닛(1200)이 한도 이상 마모되는 경우, 분리형 분쇄 롤러 조립체를 교체하여야 한다. If the crushing device is used for a long time in this state, the cover unit 1200 of the detachable crushing roller assembly is worn out. As the wear of the cover unit 1200 progresses, the pulverization performance of the pulverizer deteriorates. In this way, when the cover unit 1200 is worn beyond the limit, the separable grinding roller assembly needs to be replaced.
본 실시예의 분리형 분쇄 롤러 조립체는 내측 링 부재(1100)를 재사용하고 커버 유닛(1200)만을 교체하여 사용할 수 있다. 본 실시예의 분리형 분쇄 롤러 조립체는 커버 유닛(1200)이 내측 링 부재(1100)에 대해 착탈 가능하게 결합된 구조로 구성되어 있으므로, 커버 유닛(1200)만 내측 링 부재(1100)로부터 분리하여 새로운 커버 유닛(1200)으로 교체하는 것이 가능하다. 즉, 분리형 분쇄 롤러 조립체를 전체적으로 새로운 것으로 교체하지 않고 내측 링 부재(1100)는 재사용하고 커버 유닛(1200)만을 교체함으로써 전체적인 유지 보수 비용을 절감할 수 있다. In the separable grinding roller assembly of this embodiment, the inner ring member 1100 can be reused and only the cover unit 1200 can be replaced. Since the separable grinding roller assembly of the present embodiment has a structure in which the cover unit 1200 is detachably coupled to the inner ring member 1100, only the cover unit 1200 is separated from the inner ring member 1100 to create a new cover. It is possible to replace with unit 1200. That is, overall maintenance costs can be reduced by reusing the inner ring member 1100 and replacing only the cover unit 1200 without replacing the entire separable grinding roller assembly with a new one.
또한, 본 실시예의 분리형 분쇄 롤러 조립체는 제조 원가가 낮은 장점이 있다. 내측 링 부재(1100)는 용접이나 가공이 용이한 저탄소강을 사용하여 제작하고, 커버 유닛(1200)은 고경도 특수강으로 별도로 제작할 수 있다. 종래의 분쇄 롤러 조립체와 달리 전체 구성을 고경도 특수강으로 제작할 필요가 없으므로 매우 낮은 원가로 분리형 분쇄 롤러 조립체를 제조하는 것이 가능하다. In addition, the separable grinding roller assembly of this embodiment has the advantage of low manufacturing cost. The inner ring member 1100 is manufactured using low-carbon steel that is easy to weld or process, and the cover unit 1200 can be separately manufactured from high-hardness special steel. Unlike conventional crushing roller assemblies, it is possible to manufacture a separable crushing roller assembly at a very low cost because there is no need to make the entire structure of high-hardness special steel.
특히, 상술한 바와 같이 커버 유닛(1200)을 복수의 커버 세그먼트(1210)로 분리하여 구성함으로써, 분리형 분쇄 롤러 조립체의 제조 원가를 비약적으로 낮출 수 있다. 전체적인 분리형 분쇄 롤러 조립체의 크기에 비해 커버 세그먼트(1210)의 크기가 작을수록 금속을 가공하여 개별 커버 세그먼트(1210)를 제작하기 용이하기 때문에 공정 비용이 낮아진다. 또한, 커버 세그먼트(1210)의 부피가 작을수록 담금질과 같은 열처리를 수행하기 용이하므로 비교적 낮은 가격으로 고경도의 커버 세그먼트(1210)를 제작할 수 있다. 또한, 커버 세그먼트(1210)의 부피가 작을수록 커버 세그먼트(1210)를 가열하거나 냉각하는 열 용량이 적어지기 때문에 커버 세그먼트(1210)를 효과적으로 급랭하여 담금질(quenching)에 의한 고경도 특성을 확보하기 쉬워진다. 결과적으로 내마모성을 가진 고경도 재질의 커버 세그먼트(1210)를 비교적 저렴한 비용으로 제작할 수 있으므로, 전체적인 분리형 분쇄 롤러 조립체의 제조 원가가 낮아지고, 분리형 분쇄 롤러 조립체의 사용 수명은 오히려 연장할 수 있다.In particular, by separating the cover unit 1200 into a plurality of cover segments 1210 as described above, the manufacturing cost of the separable grinding roller assembly can be drastically reduced. As the size of the cover segment 1210 is smaller than the size of the entire separable grinding roller assembly, it is easier to manufacture the individual cover segments 1210 by processing metal, so the process cost is lowered. In addition, since the smaller the volume of the cover segment 1210 is, the easier it is to perform heat treatment such as quenching, so that the cover segment 1210 with high hardness can be manufactured at a relatively low cost. In addition, since the heat capacity for heating or cooling the cover segment 1210 decreases as the volume of the cover segment 1210 decreases, it is easy to effectively quench the cover segment 1210 and secure high hardness characteristics by quenching. lose As a result, since the cover segment 1210 made of a high-hardness material having abrasion resistance can be manufactured at a relatively low cost, the overall manufacturing cost of the separable grinding roller assembly is lowered, and the service life of the separable grinding roller assembly can be extended.
한편, 상술한 바와 같이 커버 세그먼트(1210)를 두 개의 커버 부재(1211, 1212)로 구성함으로써, 추가적인 유지 보수 비용의 절감을 기대할 수 있다. 상술한 바와 같이 분리형 분쇄 롤러 조립체는 분쇄 테이블에 대해 기울어진 상태로 설치되어 사용되므로, 커버 세그먼트(1210)를 구성하는 두 개의 커버 부재(1211, 1212) 중 분쇄 테이블과 더 가깝게 배치된 커버 부재(1211)의 마모가 더 빠르게 진행된다. 따라서, 커버 세그먼트(1210)를 구성하는 두 종류의 커버 부재(1211, 1212)들 중에 마모가 더 많이 발생한 쪽의 커버 부재(1212)만 교체하여 사용함으로써, 분리형 분쇄 롤러 조립체의 유지 보수 비용을 더 낮출 수 있다. 이를 위해서 본 실시예와 같이 분쇄 테이블과 더 가깝게 배치되는 커버 부재(1211)를 반대쪽의 커버 부재(1211, 1212)보다 더 크게 구성하는 것이 효과적일 수 있다. 또한, 경우에 따라서는 두 개의 커버 부재(1211, 1212)의 재질을 서로 다르게 구성하는 것도 가능하다. 두 개의 커버 부재(1211, 1212) 중 분쇄 테이블과 더 가깝게 배치된 커버 부재(1211)는 크롬강 또는 고탄소강과 같은 강도와 경도가 높은 재질로 구성하고, 반대쪽 커버 부재(1212)는 저탄소강과 같은 상대적으로 강도와 경도가 낮은 재질로 구성함으로써 전체적인 제조 원가를 절감하는 것이 가능하다. 또한, 도 2 내지 4에 도시한 구조와 달리 폭 방향으로 서로 인접하는 커버 부재들의 일부분이 서로 중첩된 상태로 배치되어 내측 링 부재(1100)에 결합되도록 구성하는 것도 가능하다. 비교적 충격을 적게 받는 쪽의 커버 부재의 일단이 반대쪽 커버 부재의 일단을 덮어서 가압하는 구조로 커버 부재들을 내측 링 부재(1100)에 결합하면, 충격을 많이 받는 쪽의 커버 부재의 고정을 단단하게 유지할 수 있는 장점이 있다. Meanwhile, as described above, by configuring the cover segment 1210 as two cover members 1211 and 1212, additional maintenance cost savings can be expected. As described above, since the separable grinding roller assembly is installed and used in an inclined state with respect to the grinding table, the cover member disposed closer to the grinding table among the two cover members 1211 and 1212 constituting the cover segment 1210 ( 1211) progresses more rapidly. Therefore, of the two types of cover members 1211 and 1212 constituting the cover segment 1210, only the cover member 1212 of the side with more wear is replaced and used, thereby reducing the maintenance cost of the separable grinding roller assembly. can be lowered To this end, it may be effective to configure the cover member 1211 disposed closer to the crushing table to be larger than the cover members 1211 and 1212 on the opposite side, as in the present embodiment. In addition, in some cases, it is also possible to configure the two cover members 1211 and 1212 with different materials. Of the two cover members 1211 and 1212, the cover member 1211 disposed closer to the grinding table is made of a material with high strength and hardness, such as chrome steel or high carbon steel, and the opposite cover member 1212 is relatively Therefore, it is possible to reduce the overall manufacturing cost by composing the material with low strength and hardness. In addition, unlike the structure shown in FIGS. 2 to 4 , it is also possible to configure so that portions of cover members adjacent to each other in the width direction are disposed in an overlapping state and coupled to the inner ring member 1100 . When the cover members are coupled to the inner ring member 1100 in a structure in which one end of the cover member on the side that is relatively less impacted covers and presses the other end of the cover member, the fixation of the cover member on the side that receives a lot of impact is firmly maintained. There are advantages to being able to
또한, 분쇄 작업 중에 분리형 분쇄 롤러 조립체에 충격과 진동이 지속적으로 가해지는 것으로 고려하여, 상술한 바와 같이 결합 홀(111)에 헬리컬 인서트(114)를 삽입한 상태로 결합 볼트(113)를 체결하면, 결합 볼트(113)의 체결력을 장시간 유지할 수 있는 장점이 있다. In addition, considering that shock and vibration are continuously applied to the separable grinding roller assembly during the grinding operation, as described above, when the coupling bolt 113 is fastened with the helical insert 114 inserted into the coupling hole 111 , There is an advantage of maintaining the fastening force of the coupling bolt 113 for a long time.
다음으로, 도 5 내지 도 7을 참조하여, 본 발명의 제2실시예에 따른 분리형 분쇄 롤러 조립체에 대해 설명한다.Next, referring to FIGS. 5 to 7 , a separable grinding roller assembly according to a second embodiment of the present invention will be described.
제2실시예의 분리형 분쇄 롤러 조립체의 경우 제1실시예의 분리형 분쇄 롤러 조립체와 달리 3개의 커버 부재(2211, 2212)로 커버 세그먼트(2210)가 구성된 점에 차이가 있다.In the case of the separable grinding roller assembly of the second embodiment, unlike the separable grinding roller assembly of the first embodiment, there is a difference in that the cover segment 2210 is composed of three cover members 2211 and 2212 .
즉, 본 실시예의 분리형 분쇄 롤러 조립체의 경우 복수의 커버 세그먼트(2210)는 각각 센터 커버 부재(2211)와 두 개의 사이드 커버 부재(2212)로 구성된다.That is, in the case of the separable grinding roller assembly of this embodiment, the plurality of cover segments 2210 are composed of a center cover member 2211 and two side cover members 2212, respectively.
센터 커버 부재(2211)는 내측 링 부재(2100)의 폭 방향 중앙부의 외주면에 배치되고, 사이드 커버 부재(2212)는 각각 센터 커버 부재(2211)의 양측에 배치된다. The center cover member 2211 is disposed on the outer circumferential surface of the central portion in the width direction of the inner ring member 2100, and the side cover members 2212 are disposed on both sides of the center cover member 2211, respectively.
도 7을 참조하면, 내측 링 부재(2100)의 링 몸체부(2110)에는 2열의 고정 홈(2120)이 형성된다. 양측의 사이드 커버 부재(2212)에는 각각 고정 돌기(2222)가 형성된다. 사이드 커버 부재(2212)의 고정 돌기(2222)가 각각 내측 링 부재(2100)의 고정 홈(2120)에 끼워짐으로써 폭 방향 위치가 고정된다.Referring to FIG. 7 , two rows of fixing grooves 2120 are formed in the ring body 2110 of the inner ring member 2100 . Fixing protrusions 2222 are formed on each of the side cover members 2212 on both sides. As the fixing protrusions 2222 of the side cover member 2212 are inserted into the fixing grooves 2120 of the inner ring member 2100, respectively, the position in the width direction is fixed.
제2실시예의 분리형 분쇄 롤러 조립체의 경우, 센터 커버 부재(2211)와 사이드 커버 부재(2212)에 각각 결합 홀(111)이 형성되고, 내측 링 부재(2100)에는 결합 홀(111)과 대응하는 위치에 관통 홀(112)이 형성된다. 결합 볼트(113)는 내측 링 부재(2100)의 내측에서 반경 방향으로 관통 홀(112)에 삽입되어 센터 커버 부재(2211) 또는 사이드 커버 부재(2212)의 결합 홀(111)에 체결된다. 제1실시예의 분리형 분쇄 롤러 조립체와 마찬가지로 제2실시예의 분리형 분쇄 롤러 조립체의 경우에도 결합 홀(111)에 헬리컬 인서트(114)가 삽입될 수 있다.In the case of the separable grinding roller assembly of the second embodiment, coupling holes 111 are formed in the center cover member 2211 and the side cover member 2212, respectively, and the inner ring member 2100 has a corresponding coupling hole 111. A through hole 112 is formed at the location. The coupling bolt 113 is inserted into the through hole 112 in the radial direction from the inside of the inner ring member 2100 and is fastened to the coupling hole 111 of the center cover member 2211 or the side cover member 2212. Like the separable grinding roller assembly of the first embodiment, the helical insert 114 may be inserted into the coupling hole 111 in the case of the separable grinding roller assembly of the second embodiment.
제2실시예의 분리형 분쇄 롤러 조립체도 제1실시예의 분리형 분쇄 롤러 조립체와 마찬가지로, 복수의 커버 세그먼트(2210)로 구성되는 커버 유닛(2200)을 사용함으로써, 분리형 분쇄 롤러 조립체의 제조 원가를 낮추면서도 고성능의 분리형 분쇄 롤러 조립체를 쉽게 제작할 수 있다. Like the separable grinding roller assembly of the first embodiment, the separable grinding roller assembly of the second embodiment also uses the cover unit 2200 composed of a plurality of cover segments 2210, thereby reducing the manufacturing cost of the separable grinding roller assembly and providing high performance. A separable grinding roller assembly of can be easily manufactured.
또한, 커버 유닛(2200)이 마모되는 경우 내측 링 부재(2100)는 재사용하고 커버 세그먼트(2210)들만 교체하여 사용할 수 있으므로, 분리형 분쇄 롤러 조립체의 유지 보수 비용을 절감할 수 있는 장점이 있다.In addition, when the cover unit 2200 is worn out, the inner ring member 2100 can be reused and only the cover segments 2210 can be replaced, thereby reducing maintenance costs of the separable grinding roller assembly.
또한, 분리형 분쇄 롤러 조립체의 전체적인 크기에 비해 소형인 커버 세그먼트(2210)를 비교적 저렴한 비용에 고경도 특수강으로 제작함으로써, 분리형 분쇄 롤러 조립체의 제조 원가를 낮추고 사용 수명을 연장할 수 있다.In addition, since the cover segment 2210, which is small compared to the overall size of the separable grinding roller assembly, is made of high-hardness special steel at a relatively low cost, the manufacturing cost of the separable grinding roller assembly can be reduced and the service life can be extended.
다음으로, 도 8 및 도 9를 참조하여, 본 발명의 제3실시예에 따른 분리형 분쇄 롤러 조립체에 대해 설명한다.Next, referring to FIGS. 8 and 9 , a separable grinding roller assembly according to a third embodiment of the present invention will be described.
제3실시예의 분리형 분쇄 롤러 조립체의 경우 제1실시예 및 제2실시예의 분리형 분쇄 롤러 조립체와 달리 커버 세그먼트(3210)가 커버 부재로 분리되지 않고 일체로 형성된 점에 차이가 있다. 각각의 커버 세그먼트(3210)가 폭방향을 따라 내측 링 부재(3100)를 덮도록 형성된다. 복수의 커버 세그먼트(3210)가 원주 방향을 따라 서로 접하도록 배열되어, 내측 링 부재(3100)의 외주면을 원주 방향으로 감싸도록 배치된다.In the case of the separable grinding roller assembly of the third embodiment, unlike the separable grinding roller assemblies of the first and second embodiments, the cover segment 3210 is formed integrally with the cover member instead of being separated. Each cover segment 3210 is formed to cover the inner ring member 3100 along the width direction. A plurality of cover segments 3210 are arranged to come into contact with each other along the circumferential direction and surround the outer circumferential surface of the inner ring member 3100 in the circumferential direction.
내측 링 부재(3100)의 링 몸체부(3110)에는 2열의 고정 홈(3120)이 형성되고, 커버 세그먼트(3210)에는 각각 2개의 고정 돌기(3222)가 형성된다. 커버 세그먼트(3210)의 고정 돌기(3222)가 각각 내측 링 부재(3100)의 고정 홈(3120)에 삽입됨으로써, 커버 세그먼트(3210)의 폭 방향 위치가 고정된다.Two rows of fixing grooves 3120 are formed in the ring body 3110 of the inner ring member 3100, and two fixing protrusions 3222 are formed in the cover segment 3210, respectively. As the fixing protrusions 3222 of the cover segment 3210 are inserted into the fixing grooves 3120 of the inner ring member 3100, the position of the cover segment 3210 in the width direction is fixed.
제3실시예의 분리형 분쇄 롤러 조립체의 경우, 내측 링 부재(3100)에 관통 홀(112)이 형성되고, 커버 세그먼트(3210)에는 관통 홀(112)과 대응하는 위치에 결합 홀(111)이 형성된다. 결합 볼트(113)는 내측 링 부재(3100)의 관통 홀(112)을 경유하여 커버 세그먼트 (3210)의 결합 홀(111)에 체결된다. 제3실시예의 분리형 분쇄 롤러 조립체의 경우에도 결합 홀(111)에 헬리컬 인서트(114)가 삽입될 수 있다.In the case of the separable grinding roller assembly of the third embodiment, a through hole 112 is formed in the inner ring member 3100, and a coupling hole 111 is formed in a position corresponding to the through hole 112 in the cover segment 3210. do. The coupling bolt 113 is fastened to the coupling hole 111 of the cover segment 3210 via the through hole 112 of the inner ring member 3100 . Even in the case of the separable grinding roller assembly of the third embodiment, the helical insert 114 may be inserted into the coupling hole 111 .
특히, 제3실시예의 분리형 분쇄 롤러 조립체의 경우 결합 홀(111) 중 일부는 고정 돌기(3222)에 형성되고, 관통 홀(112) 중 일부는 고정 홈(3120)에 통하도록 형성된다. 그에 따라, 결합 볼트(113)는 고정 홈(3120)에 삽입된 고정 돌기(3222) 부분에 체결됨으로써, 커버 세그먼트(3210)를 내측 링 부재(3100)에 결합하게 된다. 나머지 하나의 결합 볼트(113)는 내측 링 부재(3100)와 커버 세그먼트(3210)의 중앙부에서 체결되어 커버 세그먼트(3210)를 내측 링 부재(3100)에 결합하게 된다.In particular, in the case of the separable grinding roller assembly of the third embodiment, some of the coupling holes 111 are formed in the fixing protrusion 3222, and some of the through holes 112 are formed to pass through the fixing groove 3120. Accordingly, the coupling bolt 113 is fastened to the fixing protrusion 3222 inserted into the fixing groove 3120, thereby coupling the cover segment 3210 to the inner ring member 3100. The other coupling bolt 113 is fastened at the center of the inner ring member 3100 and the cover segment 3210 to couple the cover segment 3210 to the inner ring member 3100.
제3실시예의 분리형 분쇄 롤러 조립체도 제1실시예 및 제2실시예의 분리형 분쇄 롤러 조립체와 마찬가지로 제조 원가 절감 및 유지 보수 비용의 절감 효과를 기대할 수 있다. 또한, 제3실시예의 분리형 분쇄 롤러 조립체는 수명 연장의 효과도 기재할 수 있다. Similar to the separable grinding roller assemblies of the first and second embodiments, the separation type grinding roller assembly of the third embodiment can be expected to reduce manufacturing cost and maintenance cost. In addition, the separation type grinding roller assembly of the third embodiment can also describe the effect of life extension.
이상, 본 발명의 분리형 분쇄 롤러 조립체에 대해 바람직한 예들을 들어 설명하였으나, 본 발명의 범위는 앞에서 설명하고 도시한 형태로 한정되는 것은 아니다. 본 발명의 기술적 사항에 따라 다양한 형태로 변형되어 실시될 수 있다.In the above, preferred examples of the separable grinding roller assembly of the present invention have been described, but the scope of the present invention is not limited to the above-described and illustrated forms. It may be modified and implemented in various forms according to the technical details of the present invention.
예를 들어, 앞에서 커버 세그먼트(1210, 2210, 3210)들은 인접하는 커버 세그먼트(1210, 2210, 3210)들과 접하도록 배치되는 것으로 설명하였으나, 경우에 따라서는 커버 세그먼트들 사이에 간격이 존재하도록 커버 유닛을 구성하는 것도 가능하다. 커버 세그먼트가 복수의 커버 부재로 구성되는 경우에도 커버 부재들 사이에 간격이 존재하도록 커버 세그먼트를 구성할 수 있다.For example, the cover segments 1210, 2210, and 3210 have been described as being arranged to be in contact with the adjacent cover segments 1210, 2210, and 3210, but in some cases, a cover such that a gap exists between the cover segments. It is also possible to form a unit. Even when the cover segment is composed of a plurality of cover members, the cover segment may be configured such that there is a gap between the cover members.
커버 세그먼트 및 커버 부재의 크기와 형상 및 개수는 필요에 따라 다양하게 변형될 수 있다. The size, shape, and number of the cover segments and cover members may be variously modified as needed.
또한, 앞에서 커버 유닛(1200, 2200, 3200)은 결합 볼트(113)에 의해 내측 링 부재(1100, 2100, 3100)에 결합되는 경우를 예로 들어 설명하였으나, 경우에 따라서는 접착 결합, 용접 결합, 끼움 결합 등의 다른 다양한 방법을 사용하여 커버 유닛을 내측 링 부재에 결합할 수 있다. 경우에 따라서는 별도의 고정 부재나 고정용 기계 요소를 이용하여 커버 유닛을 내측 링 부재에 결합할 수 있다. 예를 들어, 커버 유닛의 상면이나 측면에 걸리도록 형성된 고정 부재를 내측 링 부재에 결합함으로써, 커버 부재를 내측 링 부재에 결합할 수도 있다. In addition, the case in which the cover units 1200, 2200, and 3200 are coupled to the inner ring members 1100, 2100, and 3100 by the coupling bolt 113 has been described as an example, but in some cases adhesive coupling, welding coupling, The cover unit may be coupled to the inner ring member using a variety of other methods, such as fitting. In some cases, the cover unit may be coupled to the inner ring member by using a separate fixing member or a fixing mechanical element. For example, the cover member may be coupled to the inner ring member by coupling a fixing member formed to be caught on the top or side surface of the cover unit to the inner ring member.
접착이나 용접에 의해 커버 유닛을 내측 링 부재에 결합하는 경우에는, 커버 유닛을 내측 링 부재로부터 분리하기 위하여 절삭 방법을 사용할 수 있다. 즉, 유지 보수를 위하여 커버 유닛을 교체하는 경우에 기존의 커버 유닛을 내측 링 부재로부터 절삭하여 분리하고 새로운 커버 유닛을 내측 링 부재에 결합하여 사용하게 된다.In the case of bonding the cover unit to the inner ring member by bonding or welding, a cutting method may be used to separate the cover unit from the inner ring member. That is, when replacing a cover unit for maintenance, the existing cover unit is cut and separated from the inner ring member, and a new cover unit is used after being coupled to the inner ring member.
또한, 앞에서 복수의 커버 세그먼트(1210, 2210, 3210)들은 서로 동일한 형상을 가지는 가지는 경우를 예로 들어 설명하였으나, 서로 다른 형상을 가지는 2종 이상의 커버 세그먼트들을 복합적으로 사용하여 분리형 분쇄 롤러 조립체를 구성하는 것도 가능하다. 예를 들어 2종류의 커버 세그먼트들을 마련하여 내측 링 부재의 원주 방향을 따라 2 종류의 커버 세그먼트들을 교번하여 배열하는 구조로 분리형 분쇄 롤러 조립체를 구성하는 것도 가능하다. In addition, although the case where the plurality of cover segments 1210, 2210, and 3210 have the same shape has been described as an example, two or more types of cover segments having different shapes are used in combination to form a separable grinding roller assembly. It is also possible. For example, it is also possible to configure the separable crushing roller assembly by providing two types of cover segments and alternately arranging the two types of cover segments along the circumferential direction of the inner ring member.
또한, 앞에서 설명한 제1실시예 및 제2실시예와 같이 복수의 커버 부재(1211, 1212, 2211, 2212)로 구성되는 커버 세그먼트(1210, 2210)를 구성하는 경우에, 커버 부재의 개수는 필요에 따라 다양하게 변경될 수 있다. In addition, when configuring the cover segments 1210 and 2210 composed of a plurality of cover members 1211, 1212, 2211 and 2212 as in the first and second embodiments described above, the number of cover members is necessary. can be changed in various ways depending on
또한, 앞에서 커버 유닛(1200, 2200, 3200)은 내측 링 부재(1100, 2100, 3100)에 착탈 가능하게 결합된 경우를 예로 들어 설명하였으나, 경우에 따라서는 앞서 설명한 접착, 용접 등의 방법과 같이 착탈 가능하지 않은 방법으로 커버 유닛을 내측 링 부재에 결합하는 것도 가능하다. 이와 같은 구조의 분리형 분쇄 롤러 조립체의 경우에도 개별 커버 세그먼트를 쉽고 낮은 비용으로 고경도 특수강 재질로 구성할 수 있으므로, 종래의 분쇄 롤러 조립체에 비해 충분한 내구성과 경제성을 가질 수 있다.In addition, the case in which the cover units 1200, 2200, and 3200 are detachably coupled to the inner ring members 1100, 2100, and 3100 has been described as an example, but in some cases, as in the method of bonding and welding described above. It is also possible to couple the cover unit to the inner ring member in a non-removable manner. Even in the case of the separable grinding roller assembly having such a structure, since individual cover segments can be made of high-hardness special steel material easily and at low cost, it can have sufficient durability and economy compared to conventional grinding roller assemblies.
또한, 앞에서 커버 세그먼트(1210, 2210, 3210)들은 모두 고정돌기를 구비하는 것으로 설명하고 도시하였으나, 경우에 따라서는 커버 세그먼트들의 일부만 고정 돌기를 가지도록 분리형 분쇄 롤러 조립체를 구성하는 것도 가능하다.In addition, although all of the cover segments 1210, 2210, and 3210 have been described and illustrated as having fixing protrusions, in some cases, it is also possible to construct a separable grinding roller assembly so that only some of the cover segments have fixing protrusions.
또한, 고정 돌기(1222)와 고정 홈(1120)을 구비하지 않는 구조의 분리형 분쇄 롤러 조립체를 구성하는 것도 가능하다. 고정 돌기와 고정 홈의 개수도 다양하게 변경 가능하다.In addition, it is also possible to construct a separable grinding roller assembly having a structure that does not include the fixing protrusion 1222 and the fixing groove 1120 . The number of fixing protrusions and fixing grooves can also be variously changed.
또한, 커버 유닛(1200)을 구성하는 커버 세그먼트(1210)의 개수도 필요에 따라 다양하게 변경 가능하다. 예를 들어 반원 형태의 구조를 가진 2개의 커버 세그먼트로 커버 유닛을 구성하는 것도 가능하다. Also, the number of cover segments 1210 constituting the cover unit 1200 may be variously changed as needed. It is also possible to construct the cover unit from two cover segments, for example with a semicircular structure.
또한, 결합 홀 및 결합 볼트의 개수는 다양하게 변경 가능하다. 결합 홀의 위치와 방향도 다양하게 변경 가능하고, 결합 홀의 위치와 방향에 따라 대응하는 위치에 관통 홀이 배치된다. 결합 홀의 위치와 방향에 따라 결합 볼트가 체결되거나 삽입되는 방향도 다양하게 설계 변경될 수 있다. 예를 들어, 커버 세그먼트 마다 하나의 결합 볼트를 사용하여 내측 링 부재에 결합할 수도 있고, 커버 세그먼트마다 2개 이상의 결합 볼트를 사용하여 내측 링 부재에 결합할 수도 있다. 상술한 바와 같이 내측 링 부재의 내측에서 반경 방향으로 결합 볼트를 체결하는 구조로 구성하는 것도 가능하고, 커버 유닛의 외측에서 내측 링 부재를 향해 결합 볼트를 체결하는 구조로 구성하는 것도 가능하다. 커버 세그먼트에 결합 볼트, 결합 홀, 관통 홀 등을 배치하는 구조 역시 다양하게 변경 가능하다. In addition, the number of coupling holes and coupling bolts may be variously changed. The location and direction of the coupling hole can also be changed in various ways, and the through hole is disposed at a corresponding position according to the location and direction of the coupling hole. Depending on the location and direction of the coupling hole, the direction in which the coupling bolt is fastened or inserted may also be changed in various designs. For example, each cover segment may be coupled to the inner ring member using one coupling bolt, or each cover segment may be coupled to the inner ring member using two or more coupling bolts. As described above, it is also possible to construct a structure in which the coupling bolts are fastened radially from the inside of the inner ring member, or a structure in which the coupling bolts are fastened toward the inner ring member from the outside of the cover unit. A structure for arranging coupling bolts, coupling holes, through holes, etc. in the cover segment can also be changed in various ways.
또한, 앞에서 커버 유닛에 복수의 커버 세그먼트로 구성되는 경우를 예로 들어 설명하였으나, 경우에 따라서는 커버 유닛이 커버 세그먼트로 분할되지 않고 하나의 링 형태로 형성되는 커버 유닛을 사용하여 분리형 분쇄 롤러 조립체를 구성하는 것도 가능하다. 이 경우, 링 형태로 형성된 내측 링 부재에 역시 링 형태로 형성되는 커버 유닛을 조립하는 형태로 분리형 분쇄 롤러 조립체를 구성할 수 있다. 이때 내측 링 부재와 커버 유닛이 서로 접하는 내측 링 부재의 외면과 커버 유닛의 내면은 원형으로 연장되도록 형성될 수도 있고, 다각형 형태로 서로 대응하도록 형성되어 상대 회전이 방지되는 구조로 형성될 수도 있다.In addition, although the case in which the cover unit is composed of a plurality of cover segments has been described as an example, in some cases, the cover unit is not divided into cover segments but is formed in a ring shape to form a separable grinding roller assembly using a cover unit. It is also possible to configure. In this case, the separable crushing roller assembly may be configured in such a way that a cover unit also formed in a ring shape is assembled to an inner ring member formed in a ring shape. In this case, the outer surface of the inner ring member and the inner surface of the cover unit, where the inner ring member and the cover unit come in contact with each other, may be formed to extend in a circular shape, or may be formed in a polygonal shape to correspond to each other to prevent relative rotation.

Claims (18)

  1. 분쇄 자재를 공급받는 하우징과, 상기 하우징의 내부 하측에 배치되어 회전 가능하게 설치되는 분쇄 테이블과, 상기 분쇄 테이블의 상측에 배치되어 상기 하우징에 대해 회전 가능하게 설치되는 분쇄 회전축과, 상기 분쇄 테이블이 회전할 때 상기 분쇄 테이블에 대해 구르면서 상기 분쇄 테이블 위에 배치된 상기 분쇄 자재를 분쇄하도록 상기 분쇄 회전축에 설치되는 분리형 분쇄 롤러 조립체를 포함하는 분쇄 장치의 상기 분리형 분쇄 롤러 조립체에 있어서,A housing for receiving grinding materials, a grinding table disposed below and rotatably installed in the housing, a grinding rotary shaft disposed above the grinding table and rotatably installed with respect to the housing, and the grinding table In the detachable grinding roller assembly of a grinding device including a detachable grinding roller assembly installed on the grinding rotary shaft to roll on the grinding table while rotating and crushing the grinding material disposed on the grinding table,
    링(ring) 형태로 형성되어 상기 분쇄 회전축에 결합되는 내측 링 부재; 및an inner ring member formed in a ring shape and coupled to the crushing rotary shaft; and
    상기 내측 링 부재의 상기 분쇄 테이블과 마주하는 부분의 외주를 원주 방향을 따라 감싸도록 형성되어 상기 내측 링 부재에 결합되는 커버 유닛;을 포함하는 분리형 분쇄 롤러 조립체.and a cover unit formed to surround an outer circumference of a portion of the inner ring member facing the grinding table in a circumferential direction and coupled to the inner ring member.
  2. 제1항에 있어서,According to claim 1,
    상기 커버 유닛은, 링 형태로 형성되는 분리형 분쇄 롤러 조립체.The cover unit is a separable grinding roller assembly formed in a ring shape.
  3. 제1항에 있어서,According to claim 1,
    상기 커버 유닛은, The cover unit,
    상기 내측 링 부재의 외주를 원주 방향을 따라 감싸도록 배열되어 상기 내측 링 부재에 결합되는 복수의 커버 세그먼트;를 포함하는 분리형 분쇄 롤러 조립체.Separable grinding roller assembly comprising: a plurality of cover segments arranged to surround an outer circumference of the inner ring member in a circumferential direction and coupled to the inner ring member.
  4. 제3항에 있어서,According to claim 3,
    상기 커버 유닛의 복수의 커버 세그먼트는 모두 서로 동일한 형상으로 형성되는 분리형 분쇄 롤러 조립체.A plurality of cover segments of the cover unit are all formed in the same shape as each other.
  5. 제3항에 있어서,According to claim 3,
    상기 커버 유닛의 복수의 커버 세그먼트는 상기 내측 링 부재의 원주 방향을 따라 서로 다른 형상을 가진 두 종류의 상기 커버 세그먼트가 교번하여 배열되는 분리형 분쇄 롤러 조립체.The plurality of cover segments of the cover unit are separable grinding roller assemblies in which two types of cover segments having different shapes are alternately arranged along the circumferential direction of the inner ring member.
  6. 제3항에 있어서,According to claim 3,
    상기 커버 유닛의 복수의 커버 세그먼트는 인접하는 상기 커버 세그먼트와 서로 접촉한 상태로 배열되는 분리형 분쇄 롤러 조립체.A plurality of cover segments of the cover unit are arranged in contact with adjacent cover segments.
  7. 제3항에 있어서,According to claim 3,
    상기 커버 유닛의 복수의 커버 세그먼트는 인접하는 상기 커버 세그먼트와 이격되어 배열되는 분리형 분쇄 롤러 조립체.A plurality of cover segments of the cover unit are arranged spaced apart from adjacent cover segments.
  8. 제3항에 있어서,According to claim 3,
    상기 커버 유닛의 복수의 커버 세그먼트는, 각각 상기 내측 링 부재의 폭 방향을 따라 배열되는 복수의 커버 부재를 구비하는 분리형 분쇄 롤러 조립체.The plurality of cover segments of the cover unit each have a plurality of cover members arranged along the width direction of the inner ring member.
  9. 제8항에 있어서,According to claim 8,
    상기 커버 유닛의 복수의 커버 세그먼트는, 각각 센터 커버 부재와 상기 센터 커버 부재의 앙측에 각각 하나씩 배치되는 두 개의 사이드 커버 부재를 구비하는 분리형 분쇄 롤러 조립체.The plurality of cover segments of the cover unit each have a center cover member and two side cover members disposed on both sides of the center cover member, respectively.
  10. 제8항에 있어서,According to claim 8,
    상기 커버 유닛의 복수의 커버 세그먼트는, 각각 2개의 커버 부재를 구비하는 분리형 분쇄 롤러 조립체.The plurality of cover segments of the cover unit each have two cover members.
  11. 제10항에 있어서,According to claim 10,
    상기 커버 유닛의 복수의 커버 세그먼트의 2개의 커버 부재는 서로 대칭 형상으로 형성되는 분리형 분쇄 롤러 조립체.The two cover members of the plurality of cover segments of the cover unit are formed in a symmetrical shape to each other.
  12. 제10항에 있어서,According to claim 10,
    상기 커버 유닛의 복수의 커버 세그먼트의 2개의 커버 부재는 서로 비대칭 형상으로 형성되는 분리형 분쇄 롤러 조립체.The two cover members of the plurality of cover segments of the cover unit are formed in asymmetrical shapes with each other.
  13. 제1항 내지 제12항 중 어느 한 항에 있어서,According to any one of claims 1 to 12,
    상기 커버 유닛은, 끼움 결합과 접착 결합과 용접 결합 중 어느 하나의 방법으로 상기 내측 링 부재에 결합되는 분리형 분쇄 롤러 조립체.The cover unit is coupled to the inner ring member by any one of fitting, adhesive, and welding.
  14. 제13항에 있어서,According to claim 13,
    상기 내측 링 부재는, 링 형태로 형성되는 링 몸체부와, 상기 링 몸체부의 외주면에 원주 방향을 따라 형성되는 적어도 하나의 고정 홈을 구비하고,The inner ring member has a ring body formed in a ring shape, and at least one fixing groove formed along a circumferential direction on an outer circumferential surface of the ring body,
    상기 커버 유닛의 복수의 커버 세그먼트 중 적어도 일부는, 상기 내측 링 부재의 고정 홈에 삽입되는 적어도 하나의 고정 돌기를 구비하는 분리형 분쇄 롤러 조립체.At least some of the plurality of cover segments of the cover unit have at least one fixing protrusion inserted into the fixing groove of the inner ring member.
  15. 제1항 내지 제12항 중 어느 한 항에 있어서,According to any one of claims 1 to 12,
    상기 커버 유닛은, 상기 내측 링 부재에 착탈 가능하게 결합되는 분리형 분쇄 롤러 조립체.The cover unit is detachably coupled to the inner ring member.
  16. 제15항에 있어서,According to claim 15,
    상기 커버 유닛과 상기 내측 링 부재는 복수의 결합 볼트에 의해 결합되는 분리형 분쇄 롤러 조립체.The cover unit and the inner ring member are coupled by a plurality of coupling bolts.
  17. 제16항에 있어서,According to claim 16,
    상기 커버 유닛과 내측 링 부재 중 어느 하나에는 복수의 관통 홀이 형성되고 다른 하나에는 복수의 결합 홀이 형성되며,A plurality of through holes are formed in one of the cover unit and the inner ring member and a plurality of coupling holes are formed in the other,
    상기 복수의 결합 볼트가 각각 상기 복수의 관통 홀을 경유하여 상기 복수의 결합 홀에 체결됨으로써, 상기 커버 유닛과 내측 링 부재를 서로 결합하는 분리형 분쇄 롤러 조립체.Separable grinding roller assembly in which the cover unit and the inner ring member are coupled to each other by fastening the plurality of coupling bolts to the plurality of coupling holes via the plurality of through holes, respectively.
  18. 제17항에 있어서,According to claim 17,
    상기 복수의 결합 홀에는 각각 헬리컬 인서트가 삽입 설치되고, A helical insert is inserted into each of the plurality of coupling holes,
    상기 복수의 결합 볼트는 각각 상기 헬리컬 인서트를 통해 상기 복수의 결합 홀에 체결되는 분리형 분쇄 롤러 조립체.The plurality of coupling bolts are respectively fastened to the plurality of coupling holes through the helical insert.
PCT/KR2022/006199 2021-11-16 2022-04-29 Separable pulverization roller assembly WO2023090551A1 (en)

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JP2001286779A (en) * 2000-04-10 2001-10-16 Babcock Hitachi Kk Vertical roller grinder and method for replacing grinding roller
JP2009131744A (en) * 2007-11-29 2009-06-18 Chugoku Electric Power Co Inc:The Drawing out method of coal mill roller
KR101289419B1 (en) * 2011-08-29 2013-07-24 주식회사 포스코 Pulverizer
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CN212856006U (en) * 2020-07-14 2021-04-02 哈尔滨驰远电力设备工程有限公司 Medium speed pulverizer can dismantle grinding roller cover

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Publication number Priority date Publication date Assignee Title
JP2001286779A (en) * 2000-04-10 2001-10-16 Babcock Hitachi Kk Vertical roller grinder and method for replacing grinding roller
JP2009131744A (en) * 2007-11-29 2009-06-18 Chugoku Electric Power Co Inc:The Drawing out method of coal mill roller
KR101289419B1 (en) * 2011-08-29 2013-07-24 주식회사 포스코 Pulverizer
CN204746445U (en) * 2015-06-29 2015-11-11 北京能为科技股份有限公司 Wear -resisting components of a whole that can function independently roller shell
CN212856006U (en) * 2020-07-14 2021-04-02 哈尔滨驰远电力设备工程有限公司 Medium speed pulverizer can dismantle grinding roller cover

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