Split type large roller sleeve structure

Abstract

The utility model relates to the field of roller sleeves in vertical roller mills, in particular to a sectioning type large roller sleeve structure, which comprises a grinding roller, a sectioning roller sleeve is mounted on the grinding roller, and the sectioning roller sleeve is mounted on the grinding roller. The sectioning roller sleeve is formed by splicing at least one single-section roller sleeve; the sectioning roller sleeve further comprises a limiting assembly installed on the sectioning roller sleeve. A fixing piece is further arranged between the single-petal roller sleeve and the limiting assembly and used for fixing, the limiting assembly is an annular hub installed on the split roller sleeve, a connecting lug is arranged on the single-petal roller sleeve, a round hole is formed in the connecting lug, a connecting hole matched with the round hole is formed in the annular hub, and the limiting assembly is arranged on the annular hub. The split roller sleeve has the advantages that the split roller sleeve is easy to replace and good in abrasion resistance, the machining cost and the casting difficulty of a large roller sleeve in the manufacturing process can be reduced, and meanwhile the using strength of the split roller sleeve can be effectively improved through the annular hub.

Description

Technical Field

[0001] The utility model relates to the field of roller sleeves in vertical roller mills, in particular to a large-scale split-type roller sleeve structure. Background Art

[0002] The vertical grinding mill is a kind of grinding and powder making equipment. In normal operation, the material in the vertical grinding mill is on the liner. When passing through the grinding roller area on the grinding disc, it is crushed by the grinding roller sleeve. The large pieces of material are directly crushed, and the fine particles are squeezed to form a material bed for inter-particle crushing. The crushed materials are selected by other equipment to complete the material grinding process. The roller sleeve device is the main component of the equipment, and its performance plays a vital role.

[0003] For the large-scale vertical grinding mill equipment, its main components are roller sleeves. However, for the integral roller sleeves, the manufacturing difficulty and production cost increase with the large-scale. In order to solve this problem, the roller sleeve structure is redesigned. The roller sleeve is the main functional part of the vertical grinding mill for grinding materials. It withstands huge forces to ensure its structural stability and reliability. The grinding roller is also the main consumable part of the grinding mill. The economy of the part manufacturing process should be ensured as much as possible to meet the requirements of replaceability and simple and convenient replacement operation. As the component in the equipment that directly contacts the material, it needs to have high wear resistance.

[0004] The current roller sleeve is an integrally formed one and is a consumable accessory. Frequent replacement of the entire roller sleeve is too costly. At this time, a new accessory is needed that has the corresponding strength and can be easily replaced to save the cost of using the entire roller sleeve. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a large-scale roller sleeve structure with split petals.

[0006] The utility model provides a large-scale split roller sleeve structure, comprising: a rolling roller, which is installed on a vertical grinding mill, and a split roller sleeve is installed on the rolling roller; the split roller sleeve is composed of at least one single-petal roller sleeve spliced ​​together; the split roller sleeve also includes a limiting component installed on the split roller sleeve; a fixing piece is also provided between the single-petal roller sleeve and the limiting component for fixing.

[0007] Preferably, the limiting assembly is an annular hub mounted on the petal roller sleeve.

[0008] Preferably, the single-petal roller sleeve is provided with a connecting ear, the connecting ear is provided with a circular hole, and the annular hub is provided with a connecting hole that is compatible with the circular hole.

[0009] Preferably, the fixing member is a hub pin and a hub pin sleeve installed on the circular hole and the connecting hole.

[0010] Preferably, the number of the single-petal roller sleeves is six or eight, and the six or eight single-petal roller sleeves can be spliced ​​into split-petal roller sleeves.

[0011] Preferably, an annular groove for placing the connecting ear is provided on the annular hub.

[0012] Compared with the related technology, the utility model provides a split-type large roller sleeve structure with the following beneficial effects: the split roller sleeve is easy to replace and has good wear resistance, which can reduce the processing cost and casting difficulty of the large roller sleeve during the manufacturing process. At the same time, the annular hub can effectively increase the strength of the split roller sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the single-petal roller sleeve structure of the utility model;

[0014] Figure 2 This is a cross-sectional view of the single-petal roller sleeve structure of the present utility model;

[0015] Figure 3 This is a schematic diagram of the annular hub structure of the present utility model;

[0016] Figure 4 A schematic diagram of the annular hub structure of the present utility model;

[0017] Figure 5 This is the assembly diagram of the split roller sleeve and annular hub structure of the utility model;

[0018] Figure 6 This is a cross-sectional view of the assembly of the petal roller sleeve and annular hub structure of the utility model;

[0019] Figure 7 This is a cross-sectional view of the assembly of the rolling roller of the present invention.

[0020] Numbers in the figure: 1, single-petal roller sleeve; 2, connecting ear; 3, annular hub; 4, connecting hole; 5, circular hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0023] See also Figures 1 to 7The embodiment of the present invention provides a large-scale split roller sleeve structure, including: a rolling roller, which is installed on a vertical grinding mill, and a split roller sleeve is installed on the rolling roller; the split roller sleeve is composed of at least one single-petal roller sleeve 1; the split roller sleeve also includes a limiting component installed on the split roller sleeve; a fixing part is also provided between the single-petal roller sleeve 1 and the limiting component for fixing.

[0024] The limiting component is an annular hub 3 installed on the split roller sleeve.

[0025] In this embodiment, the single-petal roller sleeve 1 and the annular hub 3 are both castings, which can ensure sufficient wear resistance. At the same time, the side of the single-petal roller sleeve 1 and the annular hub 3 that are in close contact can be used to transmit the force. At the same time, the contact surface can also effectively prevent tilting. When the single-petal roller sleeve 1 is damaged, only the corresponding single-petal roller sleeve 1 needs to be replaced, which can save a lot of costs. The annular hub 3 can also effectively increase the strength of the petal roller sleeve to avoid the inability to crush the material due to insufficient strength.

[0026] The single-petal roller sleeve 1 is provided with a connecting ear 2 , the connecting ear 2 is provided with a circular hole 5 , and the annular hub 3 is provided with a connecting hole 4 that matches the circular hole 5 .

[0027] The fixing parts are a hub pin and a hub pin sleeve installed on the circular hole 5 and the connecting hole 4.

[0028] In this embodiment, the hub pin shaft expands the hub pin shaft sleeve. After expansion, the hub pin shaft and the hub pin shaft sleeve form a limit, which ensures that the single-petal roller sleeve 1 will not move. The expansion setting can effectively offset the problem of incomplete contact of the mating surfaces due to low manufacturing precision of the parts, reduce the difficulty of installation and positioning, and limit the axial relative sliding circular motion of the single-petal roller sleeve 1 and the annular hub 3.

[0029] The number of the single-petal roller covers 1 is six or eight, and the six or eight single-petal roller covers 1 can be spliced ​​together to form a split-petal roller cover.

[0030] In this embodiment, when one of the single-petal roller sleeves 1 is damaged, only one of the single-petal roller sleeves 1 needs to be replaced.

[0031] An annular groove for the connecting ear 2 to be placed is formed on the annular hub 3 .

[0032] In this embodiment, the annular groove has a positioning function.

[0033] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A large-scale split roller sleeve structure, comprising: The rolling roller is installed on the vertical grinding mill, and is characterized in that a split roller sleeve is installed on the rolling roller; The split roller sleeve comprises at least one single-petal roller sleeve (1) spliced ​​together; The petal roller sleeve further includes a limiting component installed on the petal roller sleeve; A fixing piece is also provided between the single-petal roller sleeve (1) and the limiting assembly for fixing.

2. A large-scale split roller sleeve structure according to claim 1, characterized in that: The limiting component is an annular hub (3) mounted on the petal roller sleeve.

3. A large-scale split roller sleeve structure according to claim 2, characterized in that: The single-petal roller sleeve (1) is provided with a connecting ear (2), a circular hole (5) is provided on the connecting ear (2), and a connecting hole (4) adapted to the circular hole (5) is provided on the annular hub (3).

4. A large-scale split roller sleeve structure according to claim 3, characterized in that: The fixing member is a hub pin and a hub pin sleeve mounted on the circular hole (5) and the connecting hole (4).

5. A large-scale split roller sleeve structure according to any one of claims 1 to 4, characterized in that: The number of the single-petal roller sleeves (1) is six or eight, and the six or eight single-petal roller sleeves (1) can be spliced ​​together to form a split-petal roller sleeve.

6. A large-scale split roller sleeve structure according to claim 3, characterized in that: An annular groove for placing the connecting ear (2) is provided on the annular hub (3).

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