Multi-eccentric-roller structure of roller type extrusion crusher

Abstract

The utility model provides a multi-eccentric roller structure of a roller type extrusion crusher, which comprises a crushing roller body, the crushing roller body comprises a roller shaft part and a roller body part, the roller shaft part is connected with the roller body part, the roller body part is of a split structure and comprises a plurality of sections of roller bodies, the plurality of sections of roller bodies and the roller shaft part are eccentrically arranged, and the plurality of sections of roller bodies are connected with the roller shaft part. The eccentric directions of the multiple sections of roller bodies are circumferentially and uniformly arranged along the axis of the roller shaft part, so that centrifugal forces face different directions in the operation process of the roller body part, part of the centrifugal forces are mutually counteracted, and the influence of the centrifugal forces on a rack and a bearing is reduced.

Description

Technical Field

[0001] The utility model relates to the field of crushers, in particular to a multi-eccentric roller structure of a roller type extrusion crusher. Background Art

[0002] Roller crusher is suitable for medium and fine crushing of materials with medium hardness, such as limestone, slag, coke, coal, etc. in cement, chemical, electric power, metallurgy, building materials, refractory materials and other industrial sectors.

[0003] The eccentric rollers of traditional eccentric roller squeeze crushers are all single eccentric structures, and the eccentric direction of the entire roller body is in one direction, which makes the roller body have a large centrifugal force during operation, causing the bearings between the frame and the drive shaft to be easily damaged, and even damage the frame. Utility Model Content

[0004] The purpose of the utility model is to address the defects in the above-mentioned technology and provide a multi-eccentric roller structure for a roller squeeze crusher. The roller body adopts a multi-segment split structure. The eccentric directions of the multi-segment roller bodies are evenly arranged along the circumference of the axis of the roller shaft, so that the centrifugal forces during the operation of the roller body are directed in different directions, and some centrifugal forces offset each other, thereby reducing the influence of centrifugal force on the frame and bearings.

[0005] The purpose of the utility model is achieved as follows: it includes a crushing roller body, the crushing roller body includes a roller shaft portion and a roller body portion, the roller shaft portion and the roller body portion are connected, the roller body portion is a split structure including multiple roller sections, the multiple roller sections are eccentrically arranged with respect to the roller shaft portion, and the eccentric directions of the multiple roller sections are evenly arranged along the circumference of the axis of the roller shaft portion.

[0006] In the above structure, the roller shaft portion includes a drive shaft and a plurality of eccentric sleeves. The number of the eccentric sleeves is the same as the number of the roller bodies. The eccentric directions of the plurality of eccentric sleeves are evenly arranged along the circumference of the drive shaft axis.

[0007] In the above structure, the drive shaft and the eccentric sleeve are connected via a key.

[0008] In the above structure, a bearing is provided at each end of each eccentric sleeve, the bearing is sleeved with the eccentric sleeve, and the roller body is rotatably connected to the roller shaft via the bearing.

[0009] In the above structure, the roller body portion includes three sections of roller bodies, and the eccentric directions of the three sections of roller bodies are spaced 120 degrees apart along the axis of the roller shaft portion.

[0010] The beneficial effects of the present invention are as follows: the roller body adopts a multi-section split structure, and the eccentric directions of the multi-section roller bodies are evenly arranged along the circumference of the axis of the roller shaft, so that the centrifugal forces during the operation of the roller body are directed in different directions, and part of the centrifugal forces offset each other, reducing the influence of the centrifugal force on the frame and the bearing; the roller shaft adopts a structure in which the drive shaft is fitted with an eccentric sleeve, which is simpler than directly processing multi-section eccentric shafts and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic structural diagram of the multi-eccentric roller of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the roller shaft of the utility model after the bearing is installed;

[0013] Figure 3 This is a schematic diagram of the roller shaft structure of the utility model;

[0014] Figure 4 This is a structural diagram of the eccentric sleeve of the utility model. DETAILED DESCRIPTION

[0015] The present application provides a multi-eccentric roller structure for a roller-type squeeze crusher, comprising a roller body and a roller shaft. The roller body utilizes a multi-segment split structure, with the eccentric directions of the multiple roller segments evenly spaced along the circumference of the roller shaft axis. This allows the centrifugal forces of the roller body to be directed in different directions during operation, partially offsetting each other and reducing the impact of the centrifugal forces on the frame and bearings. This solves the problem in the prior art where eccentric rollers are all single-eccentric structures, with the eccentric direction of the entire roller body pointing in one direction. This results in high centrifugal forces during operation, which can easily damage the bearings between the frame and the drive shaft, and even damage the frame itself.

[0016] The following further describes this implementation case with reference to the accompanying drawings:

[0017] Depend on Figure 1 — Figure 4 As can be seen, the present application includes a crushing roller body, which includes a roller shaft portion 1 and a roller body portion 2. The roller shaft portion 1 and the roller body portion 2 are connected. The roller body portion 2 is a split structure including multiple roller segments 210. The multiple roller segments 210 are eccentrically arranged with respect to the roller shaft portion 1, and the eccentric directions of the multiple roller segments 210 are evenly arranged along the circumference of the axis of the roller shaft portion 1. In this embodiment, the roller body portion 2 is arranged in segments, and the eccentric direction of each roller segment 210 is evenly arranged along the circumference of the axis of the roller shaft portion 1. When the roller body portion 2 rotates, the centrifugal force generated by the rotation of each roller segment 210 is directed in different directions, which can offset each other and weaken the centrifugal force. Compared with the existing single eccentric structure, the adverse effect of centrifugal force on components such as the bearing 3 is reduced, thereby extending their service life.

[0018] Based on the above embodiment, preferably, the roller shaft portion 1 includes a drive shaft 110 and multiple eccentric sleeves 120. The number of eccentric sleeves 120 is the same as the number of the roller body 210, and the eccentric directions of the multiple eccentric sleeves 120 are evenly distributed along the circumference of the axis of the drive shaft 110. This embodiment discloses a specific embodiment of the roller shaft portion 1, in which the eccentric arrangement of the roller body 2 is achieved by attaching the eccentric sleeves 120 to the drive shaft 110. In this embodiment, the drive shaft 110 is a straight shaft. Compared to the process of directly machining multiple eccentric structures on the shaft, the processing technology of both the drive shaft 110 and the eccentric sleeves 120 is simpler, reducing the processing difficulty.

[0019] Based on the above embodiment, preferably, the drive shaft 110 and the eccentric sleeve 120 are connected via a key 4 .

[0020] Based on the above embodiment, preferably, each eccentric sleeve 120 is provided with a bearing 3 at both ends, the bearing 3 is fitted with the eccentric sleeve 120 , and the roller body 2 is rotatably connected to the roller shaft 1 through the bearing 3 .

[0021] Based on the above embodiment, preferably, the roller body portion 2 includes three sections of roller bodies 210, and the eccentric directions between the three sections of roller bodies 210 are arranged at intervals of 120 degrees along the axis of the roller shaft portion 1, such as Figure 3 shown.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. The multi-eccentric roller structure of the roller squeeze crusher includes a crushing roller body, which is characterized by: The crushing roller body includes a roller shaft portion and a roller body portion, the roller shaft portion and the roller body portion are connected, and the roller body portion is a split structure including multiple roller sections. The multiple roller sections are eccentrically arranged with respect to the roller shaft portion, and the eccentric directions of the multiple roller sections are evenly arranged along the circumference of the axis of the roller shaft portion.

2. The multi-eccentric roller structure of the roller squeeze crusher according to claim 1 is characterized in that: The roller shaft portion includes a drive shaft and a plurality of eccentric sleeves. The number of the eccentric sleeves is the same as the number of the roller bodies. The eccentric directions of the plurality of eccentric sleeves are evenly arranged along the circumference of the drive shaft axis.

3. The multi-eccentric roller structure of the roller squeeze crusher according to claim 2 is characterized in that: The driving shaft and the eccentric sleeve are connected via a key.

4. The multi-eccentric roller structure of the roller squeeze crusher according to claim 2 or 3, characterized in that: A bearing is provided at each end of each eccentric sleeve. The bearing is sleeved with the eccentric sleeve, and the roller body is rotatably connected to the roller shaft through the bearing.

5. The multi-eccentric roller structure of the roller squeeze crusher according to claim 1 is characterized in that: The roller body portion includes three sections of roller bodies, and the eccentric directions of the three sections of roller bodies are spaced 120 degrees apart along the axis of the roller shaft portion.

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