Modular crushing device
The modular crushing device, with its detachable crushing teeth and crushing beam structure, solves the problem of material blockage in the fixed crushing space of the double-toothed roller screen crusher, enabling flexible particle size control and convenient equipment maintenance, thereby improving crushing efficiency and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BODE KAISHI MASCH EQUIP (YINGKOU) CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-08
AI Technical Summary
The existing double-toothed roller screen crusher has a fixed crushing space, which can easily cause oversized particles and material blockage when the feed particle size is mismatched, affecting the output of subsequent processes.
Design a modular crushing device that uses detachable crushing teeth and crushing beam structure. The crushing space can be changed by adjusting the installation method of the crushing teeth to achieve particle size control, and the crushing teeth cover the top of the crushing beam to avoid wear.
It enables flexible adjustment of the crushing space, avoids material blockage, extends equipment service life, and improves crushing efficiency and particle size control accuracy.
Smart Images

Figure CN224208152U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of crushing equipment, specifically to a modular crushing device. Background Technology
[0002] Primary crushing in open-pit coal mining, also known as initial crushing, is the first step in the ore or coal crushing process. It is usually carried out near the mining area and its purpose is to crush large blocks of raw ore or coal into smaller particles for subsequent transportation, washing, or further processing.
[0003] For a double-toothed roller screen crusher, it can perform primary crushing of 3,000-12,000 tons of raw coal per hour. The feed particle size is usually ≤1.8 meters (three-dimensional dimensions), and the output particle size requirement is usually ≤300mm (three-dimensional dimensions). The double-toothed roller screen crusher is designed with two crushing rollers and one crushing tooth. The space formed between the crushing tooth and the crushing roller is usually called the "crushing space," which is the key point for controlling the output particle size.
[0004] Currently, once the design of the double-toothed roller screen crusher is completed, its crushing space is fixed and cannot be changed. However, in actual use, the particle size distribution, compressive strength, gangue content, and moisture content of the raw coal feed vary. If the crushing space is not properly designed, problems such as oversized particles (more than 10%) can easily occur, affecting the output of subsequent processes, causing material blockage, and affecting the crushing process. Utility Model Content
[0005] To address the aforementioned problem—namely, the fixed crushing space of existing double-toothed roller screen crushers, which easily leads to material blockage—this invention proposes a modular crushing device. The device includes a platform with a crushing opening. Two bases are located within the crushing opening, and crushing beams are mounted on the two bases. Several crushing teeth are detachably connected to the crushing beams, and these crushing teeth are arranged along the length of the crushing beams.
[0006] A further feature of this invention is that a plurality of the aforementioned breaking teeth are arranged in an alternating pattern.
[0007] A further feature of this invention is that two adjacent crushing teeth are arranged in contact with each other, and a plurality of crushing teeth are arranged to cover the top of the crushing beam.
[0008] A further feature of this invention is that a pad is provided between the breaking beam and the base.
[0009] A further feature of this invention is that baffles are installed at both ends of the broken beam.
[0010] The beneficial effects of this utility model are as follows:
[0011] 1. The crushing beam is an independent structure, which is flexible in installation and convenient in application. By detachably connecting the crushing teeth, the crushing teeth can be disassembled and replaced individually. Furthermore, by adjusting the installation of crushing teeth with different tooth shapes, the crushing space can be changed, thereby achieving particle size control.
[0012] 2. By using several crushing teeth to cover the top of the crushing beam, the top of the crushing beam can be prevented from contacting the feed, thereby preventing wear on the main structure of the crushing beam. Attached Figure Description
[0013] Figure 1 A schematic diagram of the present invention installed on a platform is shown.
[0014] Figure 2 A schematic diagram of the structure of this utility model is shown.
[0015] Figure 3 The diagram shows the structural position of the present invention and the crushing roller.
[0016] Reference numerals in the attached diagram: 1. Platform; 2. Base; 3. Crushing beam; 4. Crushing teeth; 5. Pad; 6. Baffle. Detailed Implementation
[0017] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0018] This utility model proposes a modular crushing device, including a platform 1, a crushing opening on the platform 1, an installation beam welded inside the crushing opening, and a base 2 welded on the installation beam. There are two bases 2.
[0019] Two bases 2 are bolted together with crushing beams 3. The crushing beams 3 are positioned in the middle of the crushing opening, that is, in the middle of the two crushing rollers, and are located below the crushing rollers. A pad 5 is also provided between the bases 2 and the crushing beams 3. Through the cooperation of the pad 5 and the bases 2, the vertical and horizontal positions of the crushing beams 3 can be fixed, further stabilizing the crushing beams 3.
[0020] Several crushing teeth 4 are detachably connected to the crushing beam 3 by bolts, and the crushing teeth 4 are arranged along the length of the crushing beam 3.
[0021] Several crushing teeth 4 are staggered, meaning that two adjacent crushing teeth 4 are positioned facing opposite sides of the crushing beam 3. The adjacent crushing teeth 4 are also in contact with each other, ensuring that the several crushing teeth 4 cover the entire top of the crushing beam 3. This prevents the feed material from contacting the top of the crushing beam 3, further avoiding damage to the top of the crushing beam 3.
[0022] Both ends of the crushing beam 3 are also equipped with baffles 6, which are bolted to the platform 1. The baffles 6 can block the material and prevent it from splashing out.
[0023] In summary, the crushing beam 3 of this utility model is an independent structure, which is flexible in installation and convenient in application. By detachably connecting the crushing teeth 4, it is possible to disassemble and replace the crushing teeth 4 individually. Furthermore, by adjusting the installation of crushing teeth 4 with different tooth shapes, the crushing space can be changed, thereby achieving particle size control. By using several crushing teeth 4 to cover the top of the crushing beam 3, the top of the crushing beam 3 can be prevented from contacting the feed, thus avoiding wear on the main structure of the crushing beam 3.
[0024] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0025] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated 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.
[0026] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.
[0028] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A modular crushing device, comprising a platform (1), wherein a crushing opening is provided on the platform (1), and two bases (2) are provided inside the crushing opening, characterized in that: Two bases (2) are equipped with a crushing beam (3), and a number of crushing teeth (4) are detachably connected to the crushing beam (3), and the number of crushing teeth (4) are arranged along the length direction of the crushing beam (3).
2. The modular crushing device according to claim 1, characterized in that: Several of the aforementioned breaking teeth (4) are arranged in an alternating pattern.
3. The modular crushing device according to claim 1 or 2, characterized in that: Two adjacent crushing teeth (4) are arranged in contact with each other, and a plurality of crushing teeth (4) are arranged to cover the top of the crushing beam (3).
4. The modular crushing device according to claim 1, characterized in that: A pad (5) is provided between the broken beam (3) and the base (2).
5. The modular crushing device according to claim 1, characterized in that: The two ends of the broken beam (3) are also equipped with baffles (6).