Vertical shaft crusher inner cavity lining plate with high utilization rate
By designing a split cylindrical impact body and flipping it over after wear, the problem of frequent wear of the inner cavity liner of the vertical shaft impact crusher was solved, achieving high utilization rate and cost reduction of the inner cavity liner.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-03
AI Technical Summary
The existing vertical shaft impact crusher's inner cavity liner is severely worn under strong impact, leading to frequent replacements and increased production costs.
The design features a split cylindrical impactor, which is connected by a movable fixing block and a permanent fixing block. After wear, it can be flipped for reuse, thus improving the utilization rate of the inner cavity liner.
This allows for the dual use of the cylindrical impactor, reducing equipment operating costs and improving the company's economic efficiency.
Smart Images
Figure CN224072113U_ABST
Abstract
Description
Technical Field
[0001] This utility model patent relates to a vertical shaft impact crusher, and more particularly to a high-utilization vertical shaft impact crusher inner cavity liner. Background Technology
[0002] Vertical shaft impact crushers are mainly used for producing building aggregates or manufactured sand from hard rock. Material entering the crusher is evenly distributed by a feeding cone, and then the centrifugal force of the rotor propels the material against the inner lining plates surrounding the crusher's chamber, thus achieving the purpose of crushing. Currently, the inner lining plates for vertical shaft impact crushers are generally made of high-manganese steel and undergo water quenching treatment. Under the strong impact of the crushed material, these inner lining plates wear down. Therefore, it is necessary to change the material of the inner lining plates around the crushing chamber of the vertical shaft impact crusher to high-carbon, high-chromium cast iron to make it more wear-resistant, but the production cost of high-carbon, high-chromium cast iron is relatively high. Summary of the Invention
[0003] In order to effectively reduce production costs and improve the production efficiency of building aggregate and manufactured sand enterprises, this utility model designs a high-utilization vertical shaft impact crusher inner cavity liner. After the liner is worn, the upper and lower parts are swapped to continue to be used, which greatly reduces the production cost of building aggregate and manufactured sand produced by vertical shaft impact crusher.
[0004] The objective of this utility model is achieved through the following means:
[0005] A high-utilization vertical shaft impact crusher inner cavity liner includes a shell, a bottom plate at the bottom of the shell, a support plate at the top of the shell, and vertically fixed partitions on the inner wall of the shell between the bottom plate and the support plate. The partitions are arranged radially inside the shell. A cylindrical impact body is placed on the bottom plate between adjacent partitions, and the top of the cylindrical impact body is fixed to the partition by a connecting plate. The cylindrical impact body is a split design, including an upper column and a lower column that are symmetrical to each other. Fixing block mounting holes are provided at the center of the top and bottom of the upper column and the lower column, respectively. Permanent fixing blocks are embedded in the fixing block mounting holes at the bottom of the upper column and the top of the lower column, and movable fixing blocks are inserted into the fixing block mounting holes at the top of the upper column and the bottom of the lower column.
[0006] The aforementioned high-utilization vertical shaft impact crusher inner cavity liner has several support plates that are sequentially welded to the inner wall of the shell and the top of the partition. Several arc-shaped grooves are provided on the inner side of the support plates. Each support plate corresponds to a connecting plate. The connecting plate is composed of several circular plates connected together, and the circular plates are adapted to the arc-shaped grooves of the support plates. Each circular plate corresponds to a cylindrical impact body. Bolt holes are provided on the circular plates of adjacent connecting plates at positions corresponding to the partitions. The connecting plates and partitions are fixedly connected by bolts.
[0007] The aforementioned high-utilization vertical shaft impact crusher inner cavity liner has a positioning post at the bottom of the circular plate of the connecting plate that corresponds to the movable fixing block.
[0008] The aforementioned high-utilization vertical shaft impact crusher inner cavity liner has a process hole at the center of the movable fixed block. The positioning post at the bottom of the connecting plate corresponds to the process hole of the movable fixed block. During installation, the positioning post at the bottom of the connecting plate is inserted into the process hole to perform a positioning function.
[0009] The cylindrical impact body of the aforementioned high-utilization vertical shaft impact crusher inner cavity liner is made of high-chromium cast iron.
[0010] Compared with the prior art, the present invention has the following technical effects:
[0011] This invention designs the cylindrical impact body as two symmetrical split columns connected by a movable fixing block and a permanent fixing block. When the upper and lower columns wear out at the impeller of the crushing chamber, the lower part of the lower split cylindrical impact body is replaced with the upper part, and the upper part of the upper cylindrical impact body is replaced with the lower part. After this reversal, the inner cavity liner located at the impeller of the crushing chamber can be reused, thereby improving the utilization rate of the cylindrical inner cavity liner of the vertical shaft impact crusher. This invention allows the cylindrical impact body of the crushing chamber of the vertical shaft impact crusher to be used twice, thereby improving the utilization rate of the inner cavity liner of the vertical shaft impact crusher, reducing the operating cost of the equipment, and significantly improving the economic benefits of the enterprise. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] Figure 2 for Figure 1 A schematic diagram showing the connection relationship between the middle support plate and the connecting plate.
[0014] Figure 3 This is a schematic diagram of the cylindrical counterattack body of this utility model.
[0015] Figure 4 for Figure 3 Top view.
[0016] Figure 5 This is a reference diagram showing the worn state of the cylindrical impact body of this utility model.
[0017] Figure 6 This is a reference diagram showing the cylindrical counterattack body of this utility model after it has been flipped over and is in use. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0022] The specific structure of this utility model is combined with the appendix. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 Describe it in detail.
[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a high-utilization vertical shaft impact crusher inner cavity liner includes a shell 1, a bottom plate 6 at the bottom of the shell, a support plate 3 at the top of the shell, and partitions 2 vertically fixed on the inner wall of the shell between the bottom plate and the support plate. The partitions are arranged radially inside the shell. A cylindrical impact body 7 is placed on the bottom plate between adjacent partitions, and the top of the cylindrical impact body is fixed to the partition by a connecting plate 4. The cylindrical impact body is an important working part installed around the crushing chamber of the vertical shaft impact crusher, which has the function of impact crushing raw materials. Its working surface facing the rotor impeller wears a lot. For the integral cylindrical inner cavity liner, when the middle part wears and fails, a new integral cylindrical inner cavity liner must be replaced. This results in a low utilization rate of the integral cylindrical inner cavity liner, increasing the production and operation costs of vertical shaft impact crushers in manufacturing building aggregates and manufactured sand. Therefore, this utility model designs the cylindrical impact body as a split type, such as... Figure 3 and Figure 4 As shown, it includes an upper column 71 and a lower column 72 that are symmetrical to each other. Fixing block mounting holes are provided at the center of the top and bottom of both the upper and lower columns. Permanent fixing blocks 74 are embedded in the fixing block mounting holes at the bottom of the upper column and the top of the lower column. Movable fixing blocks 73 are inserted into the fixing block mounting holes at the top of the upper column and the bottom of the lower column. Because the inner cavity liner of a vertical shaft impact crusher generally experiences more wear in the middle section, such as... Figure 5 As shown, for the cylindrical impact body A with an integral cylindrical inner cavity liner, when the middle part (upper and lower cylinders) wears down at the impeller area in the crushing chamber to form an arc-shaped surface 76, and its function fails, the lower cylinder of the split cylindrical impact body is replaced with the upper cylinder, and the upper cylinder of the upper cylindrical impact body is replaced with the lower cylinder, as shown. Figure 6 As shown, after this flipping, the wear surface 76 is divided into two parts, located in the upper part and the upper part of the crushing chamber where wear is not easy. The cylindrical impact body B located in the impeller part of the crushing chamber can continue to be used, thereby improving the utilization rate of the cylindrical inner cavity liner of the vertical shaft crusher.
[0024] The outer sides of the base plate, the outer sides of the support plate, and the outer sides of the partition plate of this utility model are all welded to the shell or fixed to the shell by bolts. The bottom of the support plate is welded or bolted to the top of the partition plate.
[0025] The high-utilization vertical shaft impact crusher inner cavity liner of this utility model comprises several support plates, which are sequentially welded to the inner wall of the shell and the top of the partition. Several arc-shaped grooves are provided on the inner side of the support plates, with each support plate corresponding to a connecting plate. The connecting plate is composed of several interconnected circular plates, and the circular plates are adapted to the arc-shaped grooves of the support plates. Each circular plate corresponds to a cylindrical impact body. Bolt holes 42 are provided at positions corresponding to the circular plates and partitions of adjacent connecting plates. The connecting plates and partitions are fixedly connected by bolts. This design ensures that the cylindrical impact body is surrounded by the support plates, connecting plates, and partitions, and the support plates prevent material from entering the gap between the cylindrical impact body and the partitions.
[0026] The high-utilization vertical shaft impact crusher inner cavity liner of this utility model has a positioning post 41 at the bottom of the circular plate of the connecting plate, which corresponds to the movable fixing block. A process hole 75 is provided at the center of the movable fixing block 73. The positioning post at the bottom of the connecting plate corresponds to the process hole of the movable fixing block. During installation, the positioning post at the bottom of the connecting plate is inserted into the process hole for positioning.
[0027] The high-utilization vertical shaft impact crusher inner cavity liner of this utility model is made of high-chromium cast iron, which reduces manufacturing costs.
[0028] The innovative points of this utility model are as follows:
[0029] 1. The cylindrical impact body of the inner cavity liner of the shaft crusher was changed from high manganese steel (ZGMn13Cr2) to high chromium cast iron (BTMCr20MoCuNiTiVRE) to reduce manufacturing costs.
[0030] 2. The cylindrical impact body of the vertical shaft crusher's inner cavity liner has been redesigned as a split cylindrical inner cavity liner, instead of the original integral cylinder. Since the inner cavity liner of a vertical shaft crusher typically experiences more wear in the middle section, a single cylindrical inner cavity liner would require replacement after the middle section wore down, resulting in low utilization and increased production and operating costs for manufacturing building aggregates and manufactured sand. With the split cylindrical inner cavity liner design, when the middle section where the upper and lower columns meet wears down at the crushing chamber impeller, the lower column of the lower split cylindrical impact body is moved to the upper part, and the upper column of the upper split cylindrical impact body is moved to the lower part. This reversal allows the inner cavity liner located at the crushing chamber impeller to be reused, thus improving the utilization rate of the vertical shaft crusher's cylindrical inner cavity liner.
[0031] 3. The inner cavity liner of the cylindrical body is designed with mounting holes for fixing blocks at both ends. The fixing blocks, which are made of 40Cr material, are installed in the mounting holes at both ends of the inner cavity liner of the cylindrical body to achieve the original effect.
[0032] The working process of this utility model is as follows:
[0033] The cylindrical impact body is placed sequentially within the space enclosed by the base plate, partition plate, and support plate. Then, connecting plates are placed one by one between the cylindrical impact body and the partition plate, and bolts are used to fix the connecting plates to the partition plate. In this way, the cylindrical impact body is pressed (or fixed) within the space enclosed by the base plate, partition plate, support plate, and connecting plate. When the middle part of the cylindrical impact body is heavily worn, the connecting plate is removed, and the upper column, permanent fixing block, lower column, and movable fixing block are removed sequentially. The lower column and upper column are flipped so that the worn surfaces are on top and bottom respectively. The permanent fixing block connects the upper and lower columns, and the upper and lower columns are installed on the movable fixing block. The connecting plate is then placed on top of the cylindrical impact body and bolted to the partition plate. This flipped cylindrical impact body, pressed (or fixed) within the space enclosed by the base plate, partition plate, support plate, and connecting plate, can be reused, thus improving the utilization rate of the cylindrical inner cavity liner of the vertical shaft impact crusher. This invention allows the cylindrical impact body of the crushing chamber of a vertical shaft impact crusher to be used twice, thereby improving the utilization rate of the inner cavity liner of the vertical shaft impact crusher, reducing the operating cost of the equipment, and significantly improving the economic benefits of the enterprise.
[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.
Claims
1. A high utilization rate vertical shaft crusher inner cavity liner plate, comprising a shell (1), characterized in that: The bottom plate (6) is arranged at the bottom of the shell, the support plate (3) is arranged at the upper part of the shell, the vertical partition plate (2) is fixed on the inner wall of the shell between the bottom plate and the support plate, the partition plates are arranged in a radial manner in the shell, the cylindrical reverse-impact body (7) is placed on the bottom plate between adjacent partition plates, and the top of the cylindrical reverse-impact body is fixed on the partition plate through the connecting plate (4); the cylindrical reverse-impact body is designed in a split type and comprises the upper column body (71) and the lower column body (72) which are symmetrical to each other, the top central part and the bottom central part of the upper column body and the lower column body are provided with the fixed block mounting hole, the permanent fixed block (74) is embedded in the upper column body bottom fixed block mounting hole and the lower column body top fixed block mounting hole, and the movable fixed block (73) is inserted into the upper column body top fixed block mounting hole and the lower column body bottom fixed block mounting hole.
2. A high utilization ratio vertical shaft breaker inner chamber liner plate according to claim 1, characterized in that: The support plate is arranged on the inner wall of the shell and the top of the partition plate in sequence, a plurality of arc-shaped grooves are arranged on the inner side of the support plate, one support plate corresponds to one connecting plate, the connecting plate is formed by connecting a plurality of circular plates, the circular plate is matched with the arc-shaped groove of the support plate, each circular plate corresponds to one cylindrical reverse-impact body, the circular plates of adjacent connecting plates are provided with bolt holes (42) at positions corresponding to the partition plate, and the connecting plate and the partition plate are fixedly connected through the bolt.
3. The high utilization vertical shaft impactor inner chamber liner of claim 1, wherein: The bottom of the circular plate of the connecting plate is provided with the positioning column (41) corresponding to the movable fixed block.
4. A high utilization ratio vertical shaft breaker inner chamber liner plate according to claim 3, characterized in that: The center of the movable fixed block (73) is provided with the process hole (75), the positioning column at the bottom of the connecting plate is matched with the process hole of the movable fixed block, and the positioning column at the bottom of the connecting plate is inserted into the process hole to play a positioning role during installation.
5. The high utilization vertical shaft impactor inner chamber liner of claim 1, wherein: The material of the cylindrical reverse-impact body is high-chromium cast iron.