Protective structure of double-roller crusher

By setting a combination structure of mounting frame, fixing groove and cleaning cloth on the double roll crusher, the problem of uneven roller surface caused by material adhesion is solved, and real-time cleaning of the roller surface is realized, which improves the service life and protection effect of the equipment.

CN224057497UActive Publication Date: 2026-03-31HEBI JINGZHONG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In the existing technology, materials cannot be cleaned in real time after sticking to the surface of the rollers of a double-roll crusher, resulting in uneven roller surfaces, affecting the uniformity of material particle size and increasing equipment wear.

Method used

An installation frame and fixing groove are set on the double roll crusher, and a cleaning cloth is installed and fixed by the fixing frame, positioning bolts and clamping components to achieve real-time cleaning of the surface of the roller, thereby enhancing the stability and cleaning effect of the cleaning cloth.

Benefits of technology

It enables real-time cleaning of the roller surface, avoiding uneven material particle size and equipment wear, and improving equipment lifespan and protection effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a double-roller crusher protection structure which comprises a double-roller crusher, round roller bodies are symmetrically arranged on the double-roller crusher, a mounting frame is arranged on the inner side wall of a shell of the double-roller crusher and above the round roller bodies, fixing grooves are symmetrically formed in the two sides of the mounting frame, and a piece of cleaning cloth is arranged in each two fixing grooves. The lower portion of one side of the cleaning cloth is attached to the outer side wall of the round roller body, the cleaning cloth is connected to the fixing groove in a clamped mode through the fixing frame, and the arranged installation frame and the fixing groove are matched with the cleaning cloth installed in the fixing groove through the fixing frame, so that materials adhering to the surface of the round roller body can be cleaned in real time; therefore, the situation that the granularity of the materials is not uniform due to the fact that the roller surface is not flat can be avoided, the abrasion condition of equipment can be reduced, the service life of the equipment can be prolonged, the situation that the materials are continuously adhered to the round roller body to damage the round roller body can be avoided, and the protection effect on the round roller body is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of crusher protection technology, specifically to a protective structure for a double-roll crusher. Background Technology

[0002] A double roll crusher uses a pair of opposing rotating rollers to crush materials. The material falls into the gap between the two rollers through the feed port at the top of the equipment. It is gradually crushed by friction and is drawn into the gap between the two rollers. The finished material leaks out from the bottom. When encountering materials that are too hard to crush, the rollers automatically retract, increasing the gap between the rollers. The hard material falls down, and the rollers return to the original gap by the action of a hydraulic cylinder or spring, thus protecting the machine.

[0003] When crushing different materials in a double roll crusher, due to the characteristics of the materials (such as moisture, viscosity, particle size distribution, etc.), the materials may stick to the surface of the rolls due to the extrusion pressure during the crushing process. In the existing technology, the common way to clean the materials sticking to the surface of the rolls is to use scraper cleaning or high-pressure water cleaning to clean the materials sticking to the outer wall of the rolls, thereby avoiding the impact on subsequent material crushing.

[0004] However, the above cleaning method requires cleaning the surface of the rollers after the machine is stopped. Therefore, it is impossible to clean the material immediately after it sticks. This may result in uneven particle size of the material after subsequent crushing due to the uneven roller surface, which may increase the wear and tear on the equipment and reduce its service life. Utility Model Content

[0005] In view of this, the present invention provides a protective structure for a double-roll crusher. It can use a set mounting frame and a fixing groove, along with a cleaning cloth installed in the fixing groove through the fixing frame, to clean the material adhering to the surface of the roller body in real time. This can prevent the uneven particle size of the material caused by the unevenness of the roller surface, reduce wear on the equipment, extend the service life of the equipment, and prevent the material from continuously adhering to the roller body and causing damage to the roller body, thus further improving the protective effect on the roller body.

[0006] To solve the above-mentioned technical problems, this utility model provides a protective structure for a double roll crusher, including a double roll crusher, on which circular roll bodies are symmetrically arranged. An installation frame is provided on the inner side wall of the shell of the double roll crusher and above the circular roll bodies. The installation frame can be welded from multiple plates. Fixing grooves are symmetrically opened on both sides of the installation frame, that is, two fixing grooves are opened on each side of the installation frame. The fixing grooves can be opened on the installation frame by a cutting machine.

[0007] A cleaning cloth is installed in each pair of fixed slots. The cleaning cloth is wrapped around each pair of fixed slots according to the shape of the fixed slots, and the end facing the mounting frame needs to extend a longer length so that it fits against the outer wall of the roller body. The lower part of one side of the cleaning cloth fits against the outer wall of the roller body. The cleaning cloth is snapped onto the fixed slot by the fixed frame. That is, when the cleaning cloth is wrapped around the mounting frame and in the fixed slot, the fixed frame is pressed into the fixed slot so that the cleaning cloth can be limited and fixed.

[0008] Each fixed frame and the mounting frame have multiple threaded holes. Multiple bolt holes can be opened by a tapping machine. Each threaded hole is connected to a positioning bolt by thread engagement. The positioning bolt is turned into the threaded hole by thread engagement. A positioning nut is connected to the outer wall of each positioning bolt by thread engagement.

[0009] Both fixed frames are equipped with clamping components on their opposing surfaces. These clamping components further compress the cleaning cloth, thereby improving its cleaning effect. Each clamping component includes a fixed plate on one vertical surface of the fixed frame. The fixed plate is bolted to the vertical surface of the fixed frame. A guide rod is slidably connected to the fixed plate. A groove is provided on the fixed plate, and the guide rod is slidably connected within the groove. A clamping column is connected to the lower part of the guide rod and is fixedly connected to the lower part of the guide rod. A spring is connected between the clamping column and the fixed plate, and both ends of the spring are fixedly connected to the opposing surfaces of the clamping column and the fixed plate, respectively.

[0010] The guide rod is designed as a polygonal structure.

[0011] The mounting frame is symmetrically equipped with support plates at the bottom. The support plates are fixedly connected to the bottom of the mounting frame. Support columns are provided on the opposite sides of the two support plates and are fixedly connected to the support plates.

[0012] Each support column is connected to a threaded rod at one end, and the threaded rod is fixedly connected to one end of the support column. A fastening nut is connected to the outer wall of the threaded rod through a threaded engagement.

[0013] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0014] 1. By using the set mounting frame and fixing groove, along with the cleaning cloth installed in the fixing groove through the fixing frame, the material adhering to the surface of the roller body can be cleaned in real time. This can prevent uneven particle size of the material caused by uneven roller surface, reduce wear on the equipment, extend the service life of the equipment, and prevent the material from continuously adhering to the roller body and causing damage to the roller body, thus further improving the protection effect of the roller body.

[0015] 2. By using positioning bolts and positioning nuts, the stability of the cleaning cloth and the fixing frame during the cleaning process can be further improved, thereby preventing the cleaning cloth from tilting or falling off due to friction.

[0016] 3. The clamping components can improve the cleaning effect of the cleaning cloth and prevent the cleaning cloth from rolling up due to friction, thereby further improving the cleaning effect and cleaning speed on the surface of the roller body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of a partial component structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the clamping component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the mounting frame and its components of the present invention.

[0021] In the diagram: 101, roller body; 102, mounting frame; 103, fixing groove; 104, cleaning cloth; 105, fixing frame;

[0022] 201. Locating bolt; 202. Locating nut;

[0023] 301. Fixing plate; 302. Clamping column; 303. Guide rod; 304. Spring;

[0024] 401. Support plate; 402. Support column;

[0025] 501. Threaded rod; 502. Fastening nut. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0027] like Figure 1 , 2As shown: A protective structure for a double-roll crusher includes a double-roll crusher with symmetrically arranged circular roll bodies 101. These are all prior art and require no further explanation. An installation frame 102 is provided on the inner wall of the double-roll crusher shell, above the circular roll bodies 101. The installation frame 102 provides stable support for the various components and allows for the creation of fixing grooves 103. The installation frame 102 can be welded from multiple plates, making its manufacturing process more convenient and improving its connection structure. To enhance stability, the mounting frame 102 has symmetrical fixing grooves 103 on both sides. The fixing grooves 103 not only support the cleaning cloth 104 but also allow the fixing frame 105 to be snapped into them, further limiting the position of the cleaning cloth 104. That is, there are two fixing grooves 103 on each side of the mounting frame 102, which further improves the fixing effect of the cleaning cloth 104. The fixing grooves 103 can be cut on the mounting frame 102 with a cutting machine, making it easy to manufacture and making its connection structure more stable.

[0028] like Figure 2 , 3 As shown: A cleaning cloth 104 is provided in each pair of fixing slots 103. The cleaning cloth 104 allows for real-time cleaning of the roller body 101. Furthermore, the friction between the cleaning cloth 104 and the roller body 101 reduces dust, further preventing dust from polluting the working environment. The cleaning cloth 104 is wrapped around each pair of fixing slots 103 according to their shape, providing stable support. A longer length of the cleaning cloth 104 extends towards the mounting frame 102, allowing for cleaning through the roller body. The outer wall of the roller body 101 is cleaned by friction between the cleaning cloth 104 and the surface of the roller body 101. This process avoids the material adhering to the surface of the roller body 101, which could cause uneven particle size of the material to be crushed later. The cleaning cloth 104 is made to adhere to the outer wall of the roller body 101, thereby further improving the cleaning effect of the cleaning cloth 104. The lower part of one side of the cleaning cloth 104 is in contact with the outer wall of the roller body 101, thereby increasing the friction by increasing the contact area, which further improves the cleaning effect of the cleaning cloth 104 on the surface of the roller body 101.

[0029] like Figure 1 , 4As shown: The cleaning cloth 104 is secured to the fixing groove 103 by the fixing frame 105, allowing for quick assembly and disassembly of the cleaning cloth 104 when cleaning or replacement is needed. Specifically, when the cleaning cloth 104 is wrapped around the mounting frame 102 and within the fixing groove 103, the fixing frame 105 is pressed into the fixing groove 103, thus limiting and fixing the cleaning cloth 104. This provides stable support for the cleaning cloth 104 during use, preventing it from falling off. Each fixing frame 105 has multiple threaded holes passing through the mounting frame 102. These threaded holes further enhance the stability of the fixing frame 105 and the cleaning cloth 104, preventing the cleaning cloth 104 from tilting or falling off when cleaning the surface of the roller body 101. The multiple bolt holes can be tapped. The machine is designed to facilitate manufacturing. Multiple threaded holes are connected to positioning bolts 201 via threaded engagement. The positioning bolts 201, when inserted into the threaded holes, work with positioning nuts 202 to further limit the positioning of the fixing frame 105 and the cleaning cloth 104, thereby improving the stability of the fixing frame 105 and the cleaning cloth 104 during operation. The positioning bolts 201 are screwed into the threaded holes via threaded engagement, allowing for quick disassembly and assembly of the fixing frame 105 and the cleaning cloth 104 when replacement or cleaning is required. The outer wall of each positioning bolt 201 is connected to a positioning nut 202 via threaded engagement, which further enhances stability and prevents the positioning bolts 201 from falling off the fixing frame 105 due to shaking.

[0030] like Figure 2 , 3 As shown: Both facing surfaces of the two fixed frames 105 are equipped with clamping components. These clamping components further compress the cleaning cloth 104, thereby improving its cleaning effect. Each clamping component includes a fixing plate 301 mounted on a vertical surface of one side of the fixed frame 105. The fixing plate 301 provides stable support for the components on it, improving their stability during operation. The fixing plate 301 is bolted to the vertical surface of one side of the fixed frame 105, ensuring that the fixing plate 301 and its components can be easily maintained or replaced. For easy assembly and disassembly, a guide rod 303 is slidably connected to the fixed plate 301. The guide rod 303 can slide on the fixed plate 301, thereby allowing the clamping column 302 to automatically adjust according to the hardness and tightness of the material adhering to the surface of the roller body 101, preventing damage or jamming of the clamping column 302. A sliding groove is provided on the fixed plate 301, allowing the guide rod 303 to slide within it. The guide rod 303 is slidably connected in the sliding groove on the fixed plate 301, thereby guiding the various components on it.

[0031] like Figure 3As shown: A clamping column 302 is connected to the lower part of the guide rod 303. The clamping column 302 is set to clamp the cleaning cloth 104, thereby further improving the cleaning effect of the cleaning cloth 104 and increasing the friction of the cleaning cloth 104. It can quickly clean the material attached to the surface of the roller body 101. The clamping column 302 is fixedly connected to the lower part of the guide rod 303, thereby making its connection structure more stable and improving the stability of the clamping column 302 during operation. A spring 304 is connected between the clamping column 302 and the fixing plate 301. The spring 304 is set so that the clamping column 302 can return to its original position after springing up, thereby improving the cleaning effect and preventing the clamping column 302 from being damaged by hard adhesive material during operation. The two ends of the spring 304 are respectively fixedly connected to the facing surfaces of the clamping column 302 and the fixing plate 301, thereby making its connection structure more stable.

[0032] like Figure 1 , 3 As shown in Figure 4: The guide rod 303 is designed as a polygonal structure. This polygonal structure prevents the guide rod 303 from deflecting during the guiding process, thereby preventing the clamping column 302 from deflecting and further improving the stability of the clamping column 302 in pressing the cleaning cloth 104. Support plates 401 are symmetrically arranged at the lower part of the mounting frame 102. The support plates 401 not only block the dust after crushing but also guide the crushed material and provide stable support for the various components. The support plates 401 are fixedly connected to the lower part of the mounting frame 102, making the connection structure of the support plates 401 more stable. Support columns 402 are provided on the opposite sides of the two support plates 401. The support columns 402 allow the various components to be supported on the shell of the double-roll crusher, i.e., in the double-roll crusher... Each outer shell has mounting slots of the same size as the support column 402, allowing the support column 402 to be secured within the slots, thus providing stable support for all components on it. The support column 402 is fixedly connected to the support plate 401, ensuring stable support and improving the overall structural stability. Each support column 402 has a threaded rod 501 connected to one end. The threaded rod 501, in conjunction with the fastening nut 502, further enhances the stability of the overall structure when installed on the double-roll crusher. The threaded rod 501 is fixedly connected to one end of the support column 402, thus improving its stability. The outer wall of the threaded rod 501 is threadedly connected to the fastening nut 502, allowing the support plate 401 and its components to be positioned within limits when the fastening nut 502 is tightened.

[0033] In use, the components on the support plate 401 and mounting frame 102 are installed in the mounting slots opened on the double roll crusher via the support columns 402. After installation, the overall structure is stably supported on the double roll crusher by tightening the fastening nuts 502. Then, the cleaning cloth 104 is clipped into the corresponding fixing slot 103 via the fixing frame 105, and the corresponding positioning bolts 201 are installed in the bolt holes and tightened with the positioning nuts 202. After the above operations are completed, the material can be crushed, while the material adhering to the roller body 1... The material on the surface of roller 101 can be cleaned off due to the friction of the cleaning cloth 104 and the pressing operation of the pressing column 302. This allows for real-time cleaning of the material adhering to the surface of roller 101, thus preventing uneven particle size caused by uneven roller surface. It also reduces wear on the equipment, extends its service life, and prevents the material from continuously adhering to the roller 101 and causing damage, further enhancing the protection of the roller body.

[0034] 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.

[0035] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A protection structure for a pair of roll crusher, comprising a pair of roll crusher, a pair of roll bodies (101) are symmetrically arranged on the pair of roll crusher, characterized in that: The mounting frame (102) is symmetrically provided with a fixed groove (103) on both sides above the circular roller body (101) on the inner side wall of the housing of the double-roller crusher. A cleaning cloth (104) is arranged in each two fixed grooves (103), one side of the lower part of the cleaning cloth (104) is attached to the outer side wall of the circular roller body (101), and the cleaning cloth (104) is clamped on the fixed groove (103) through a fixed frame (105).

2. A protection structure for a pair of crushing rolls as claimed in claim 1, characterized in that: A plurality of threaded holes are formed in each fixed frame (105) and pass through the mounting frame (102), a positioning bolt (201) is connected in each threaded hole through threaded cooperation, and a positioning nut (202) is connected to the outer side wall of each positioning bolt (201) through threaded cooperation.

3. A protection structure for a pair of crushing rolls as claimed in claim 1, characterized in that: Opposite surfaces of two fixed frames (105) are provided with pressing assemblies, each group of pressing assemblies comprises a fixed plate (301) arranged on the vertical surface of one side of the fixed frame (105), a guide rod (303) is connected to the fixed plate (301) in a sliding manner, a pressing column (302) is connected to the lower part of the guide rod (303), and a spring (304) is connected between the pressing column (302) and the fixed plate (301).

4. A pair of roll crusher guard structure according to claim 3, characterized in that: The guide rod (303) is provided in a polygonal structure.

5. A guard structure for a roll crusher as claimed in claim 1, characterised in that: The lower part of the mounting frame (102) is symmetrically provided with a support plate (401), and support columns (402) are arranged on the opposite surfaces of the two support plates (401).

6. A pair of crushing machine guard structures according to claim 5, characterised in that: One end of each support column (402) is connected with a threaded rod (501), and a fastening nut (502) is connected to the outer side wall of the threaded rod (501) through threaded cooperation.