Adjusting device for discharge port of crusher

By using the crusher discharge port adjustment device, the crusher roller spacing and screening plate are adjusted by hydraulic cylinders to screen the crushed stone, which solves the problem that the crusher roller spacing cannot be dynamically adjusted in the existing technology, and improves the practicality of the roller crusher and the uniformity of the crushed stone.

CN224194812UActive Publication Date: 2026-05-05ZAOZHUANG RUILONG MACHINERY MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZAOZHUANG RUILONG MACHINERY MFG
Filing Date
2025-01-20
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing roller crushers cannot easily and dynamically adjust the gap between the crushing rollers according to actual needs, resulting in the inability to obtain crushed stone blocks of different sizes, thus reducing the practicality of the equipment.

Method used

The crusher uses a discharge port adjustment device to adjust the distance between the first and second crushing rollers via a hydraulic cylinder. Combined with components such as a screening plate and a perforated plate, it can crush and screen the stone, flexibly obtaining crushed stone blocks of different sizes.

Benefits of technology

It enables convenient adjustment of the crushing roller spacing according to needs, improving the practicality of the crusher and the uniformity of the crushed stones, and enhancing the flexibility and ease of operation of the device.

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Abstract

The utility model relates to the technical field of crushers, in particular to a crusher discharge port adjusting device which comprises a crushing box, and the inner wall of the crushing box is horizontally and rotatably connected with a first crushing roller; a through hole is formed in the side wall of the crushing box, a moving frame is slidably assembled on the inner wall of the through hole, a second crushing roller is horizontally and rotationally connected into the moving frame, a hydraulic cylinder is fixedly assembled on the outer wall of the crushing box, and the output end of the hydraulic cylinder penetrates through the crushing box to be fixedly assembled on the surface of the moving frame; the distance between the first crushing roller and the second crushing roller can be adjusted by controlling stretching and retracting of the hydraulic cylinder. According to the stone crushing device, the hydraulic cylinder, the first crushing roller, the second crushing roller and other parts are arranged to be matched, so that in the stone crushing process, when broken stone blocks with different sizes need to be obtained, the distance between the first crushing roller and the second crushing roller can be adjusted by controlling the output end of the hydraulic cylinder to stretch out and draw back; and therefore, gravel blocks with different sizes can be conveniently obtained, and the practicability of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of crusher technology, and in particular to a crusher discharge port adjustment device. Background Technology

[0002] A roller crusher is a crushing device that utilizes the compressive force of two crushing rollers to achieve crushing. The rotating rollers, through friction, draw the material fed onto their surfaces into the crushing chamber, where it is subjected to compressive stress and crushed. The material is then carried out of the crushing chamber by the rotating rollers as the crushed product, and a discharge port is formed between the two rollers. However, existing roller crushers generally suffer from the following problems:

[0003] When crushing stone, the distance between the two crushing rollers is fixed. When different sizes of crushed stone are needed, it is not convenient to dynamically adjust the distance between the crushing rollers according to actual needs, which reduces the practicality of the roller crusher.

[0004] In summary, existing technologies for roller crushers, where all crushing rollers are fixed, do not allow for convenient dynamic adjustment of the roller spacing based on actual needs, thus reducing the practicality of the roller crusher. Therefore, we propose a crusher discharge port adjustment device. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art, the present invention provides a crusher discharge port adjustment device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a crusher discharge port adjustment device, including a crushing box, wherein a first crushing roller is horizontally rotatably connected to the inner wall of the crushing box;

[0007] The side wall of the crushing box has a through hole, and a movable frame is slidably mounted on the inner wall of the through hole. A second crushing roller is horizontally rotatably connected inside the movable frame. A hydraulic cylinder is fixedly mounted on the outer wall of the crushing box. The output end of the hydraulic cylinder passes through the crushing box and is fixedly mounted on the surface of the movable frame. The distance between the first crushing roller and the second crushing roller can be adjusted by controlling the extension and retraction of the hydraulic cylinder.

[0008] Preferably, a guide plate is fixedly mounted on the crushing box relative to the position of the first crushing roller, and a rotating frame is rotatably connected to the crushing box relative to the position of the second crushing roller. An extension plate is slidably mounted on the inner wall of the rotating frame, and a transmission frame is fixedly mounted on the surface of the movable frame. The transmission frame is rotatably connected to the extension plate, and both ends of the transmission frame, the extension plate, and the rotating frame abut against the inner wall of the crushing box.

[0009] Preferably, a baffle that abuts against the inner wall of the crushing box is fixedly mounted on the surface of the movable frame, and the baffle is rotatably connected to the second crushing roller.

[0010] Preferably, a clamping plate is fixedly installed on the lower outer wall of the crushing box, and a screening plate that abuts against the lower end of the crushing box is horizontally slidably connected to the inner wall of the clamping plate. A limiting plate is fixedly installed on the lower surface of the screening plate, and a perforated plate that abuts against the lower surface of the screening plate is slidably installed on the surface of the limiting plate.

[0011] Preferably, the orifice plate is internally threaded with bolts, which pass through the orifice plate and abut against the lower surface of the screening plate.

[0012] Preferably, the lower surface of the sieve plate is provided with a graduated groove.

[0013] Preferably, a clamping plate is engaged with the surface of the clamping plate, and the clamping plate is slidably connected to the screening plate.

[0014] Compared with the prior art, the present invention provides a crusher discharge port adjustment device, which has the following beneficial effects:

[0015] (1) In this utility model, by setting up components such as hydraulic cylinder, first crushing roller and second crushing roller to cooperate, when it is necessary to obtain crushed stone of different sizes during the crushing process, the distance between the first crushing roller and the second crushing roller can be adjusted by controlling the extension and retraction of the output end of the hydraulic cylinder, so as to conveniently obtain crushed stone of different sizes and improve the practicality of the device.

[0016] (2) By using components such as screening plates and perforated plates, the screening plates can screen the stone blocks when crushing the stone. At this time, the larger stone blocks will remain on the top of the screening plates, thereby improving the uniformity of the obtained stone blocks. On this basis, by adjusting the position of the perforated plates, the size of the falling stone blocks can be limited as needed.

[0017] (3) By setting a clamping plate, when the screening plate slides into the inner wall of the clamping plate, the clamping plate slides down along the surface of the clamping plate. When the clamping plate contacts the screening plate, the clamping plate can restrict the position of the screening plate. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the entire crusher discharge port adjustment device of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the crushing box of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the second crushing roller of this utility model;

[0022] Figure 4 This is a schematic diagram of a partial disassembly of the crushing box in this utility model.

[0023] Legend: 1. Crushing box; 2. First crushing roller; 3. Through hole; 4. Moving frame; 5. Second crushing roller; 6. Hydraulic cylinder; 7. Guide plate; 8. Rotating frame; 9. Extension plate; 10. Transmission frame; 11. Clamping plate; 12. Screening plate; 13. Limiting plate; 14. Perforated plate; 15. Bolt; 16. Scale groove; 17. Clamping plate; 18. First motor; 19. Second motor; 20. Baffle. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] like Figures 1-4As shown, this utility model provides a crusher discharge port adjustment device, including a crushing box 1. A first crushing roller 2 is horizontally rotatably connected to the inner wall of the crushing box 1. A first motor 18 is fixedly mounted on the outer wall of the crushing box 1. The output end of the first motor 18 passes through the crushing box 1 and is coaxially fixedly mounted to the first crushing roller 2 via a coupling. A through hole 3 is opened on the side wall of the crushing box 1. A movable frame 4 is slidably mounted on the inner wall of the through hole 3. A second crushing roller 5 is horizontally rotatably connected inside the movable frame 4. A second motor 19 is fixedly mounted on the surface of the movable frame 4. The output end of the second motor 19 is coaxially fixedly mounted to the second crushing roller 5 via a coupling. A hydraulic cylinder 6 is fixedly mounted on the outer wall of the crushing box 1. The output end of the hydraulic cylinder 6 passes through the crushing box 1 and is fixedly mounted on the surface of the movable frame 4. When crushing stone, the first motor 18 is controlled to adjust the discharge port of the crushing box 1. The first motor 18 and the second motor 19 rotate in opposite directions. The output end of the first motor 18 drives the first crushing roller 2 to rotate, and the output end of the second motor 19 drives the second crushing roller 5 to rotate. The first crushing roller 2 and the second crushing roller 5 work together to complete the crushing operation of the stone. When it is necessary to obtain crushed stone of different sizes, the output end of the hydraulic cylinder 6 is controlled to extend or retract. When the output end of the hydraulic cylinder 6 extends, the moving frame 4 will drive the second crushing roller 5 to move closer to the first crushing roller 2 along the inner wall of the through hole 3. At this time, the distance between the first crushing roller 2 and the second crushing roller 5 becomes smaller, so smaller crushed stone can be obtained. When the output end of the hydraulic cylinder 6 retracts, the distance between the first crushing roller 2 and the second crushing roller 5 becomes larger, so larger crushed stone can be obtained. The operation is simple, convenient and flexible.

[0028] In the above scheme, during crushing, the stone material easily falls directly from the gap between the first crushing roller 2, the second crushing roller 5, and the crushing box 1. Therefore, it is necessary to limit the falling range of the stone material. Specifically, the crushing box 1 is fixedly equipped with a guide plate 7 relative to the position of the first crushing roller 2. A rotating frame 8 is rotatably connected to the position of the crushing box 1 relative to the position of the second crushing roller 5. An extension plate 9 is slidably assembled on the inner wall of the rotating frame 8. A transmission frame 10 is fixedly assembled on the surface of the moving frame 4. The transmission frame 10 is rotatably connected to the extension plate 9. The transmission frame 10 and the extension plate 9 are... Both ends of the rotating frame 8 are pressed against the inner wall of the crushing box 1. When the moving frame 4 moves, the transmission frame 10 will move synchronously with the moving frame 4. At this time, the extension plate 9 will slide along the inner wall of the rotating frame 8 to ensure that the second crushing roller 5 can move normally. When the stone is fed, the stone will slide along the surface of the rotating frame 8 to the surface of the extension plate 9 and fall between the first crushing roller 2 and the second crushing roller 5, or fall along the surface of the guide plate 7 to the space between the first crushing roller 2 and the second crushing roller 5, so that the first crushing roller 2 and the second crushing roller 5 can stably crush the stone.

[0029] In addition, when adjusting the position of the second crushing roller 5, a gap will be formed between the moving frame 4 and the through hole 3 support. At this time, crushed stones can easily fall into the crushing box 1 through the gap, causing the crushed stones to pollute the surrounding environment. Therefore, it is necessary to seal the gap during the adjustment of the moving frame 4. Specifically, a baffle 20 is fixedly mounted on the surface of the moving frame 4 and abuts against the inner wall of the crushing box 1. The baffle 20 is rotatably connected to the second crushing roller 5. When the moving frame 4 moves, it will drive the baffle 20 to slide along the inner wall of the crushing box 1. The baffle 20 can seal the gap between the moving frame 4 and the through hole 3, thereby preventing crushed stones from falling into the crushing box 1 through the gap.

[0030] Furthermore, the crushed stone may contain large fragments, which can affect the uniformity of the collected fragments. Therefore, it is necessary to screen out the larger fragments. Specifically, a clamping plate 11 is fixedly mounted on the lower outer wall of the crushing box 1. A screening plate 12 is horizontally slidably connected to the inner wall of the clamping plate 11. A limiting plate 13 is fixedly mounted on the lower surface of the screening plate 12. A perforated plate 14 is slidably mounted on the surface of the limiting plate 13, which abuts against the lower surface of the screening plate 12. When the screening plate 12 is slid in along the inner wall of the clamping plate 11, it can screen the fragments. At this time, the larger fragments will remain above the screening plate 12. When the perforated plate 14 is misaligned with the screening plate 12, the perforated plate 14 will block the screening plate 12, thereby adjusting the size of the fragments screened by the screening plate 12 and further improving the flexibility of use.

[0031] Specifically, after adjusting the position of the orifice plate 14, when the crushed stone falls through the orifice plate 14, the orifice plate 14 is prone to displacement due to compression. Therefore, it is necessary to restrict the position of the orifice plate 14. Specifically, the orifice plate 14 is internally threaded with a bolt 15. The bolt 15 passes through the orifice plate 14 and abuts against the lower surface of the screening plate 12. When the bolt 15 is rotated, the bolt 15 will move by means of the thread. When the bolt 15 abuts against the lower surface of the screening plate 12, the bolt 15 achieves the function of restricting the position of the orifice plate 14.

[0032] When moving the orifice plate 14, it is difficult to directly judge the moving distance of the orifice plate 14, making it inconvenient to accurately adjust the position of the orifice plate 14. Therefore, it is necessary to make it easy for the staff to grasp the moving distance of the orifice plate 14. In this embodiment, the lower surface of the sieve plate 12 is provided with a scale groove 16, which makes it easy to grasp the moving distance of the orifice plate 14.

[0033] During crushing, the screening plate 12 is prone to sliding along the inner wall of the clamping plate 11 due to vibration during device operation, causing the screening plate 12 to be misaligned with the lower end of the crushing box 1, resulting in the screening plate 12 being unable to properly screen the crushed stone. Therefore, it is necessary to restrict the position of the screening plate 12. Specifically, a clamping plate 17 is engaged with the surface of the clamping plate 11, and the clamping plate 17 is slidably connected to the screening plate 12. When the screening plate 12 slides into the inner wall of the clamping plate 11, the clamping plate 17 slides from top to bottom along the surface of the clamping plate 11. When the clamping plate 17 contacts the screening plate 12, the clamping plate 17 can restrict the position of the screening plate 12.

[0034] In the description of this utility model, the terms "first," "second," "another," and "yet another" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A crusher discharge port adjustment device, including a crushing box (1), characterized in that: The inner wall of the crushing box (1) is horizontally rotatably connected to the first crushing roller (2); The side wall of the crushing box (1) is provided with a through hole (3). A movable frame (4) is slidably mounted on the inner wall of the through hole (3). A second crushing roller (5) is horizontally rotatably connected inside the movable frame (4). A hydraulic cylinder (6) is fixedly mounted on the outer wall of the crushing box (1). The output end of the hydraulic cylinder (6) passes through the crushing box (1) and is fixedly mounted on the surface of the movable frame (4). The distance between the first crushing roller (2) and the second crushing roller (5) can be adjusted by controlling the extension and retraction of the hydraulic cylinder (6). A guide plate (7) is fixedly mounted on the position of the crushing box (1) relative to the first crushing roller (2). A rotating frame (8) is rotatably connected on the position of the crushing box (1) relative to the second crushing roller (5). An extension plate (9) is slidably mounted on the inner wall of the rotating frame (8). A transmission frame (10) is fixedly mounted on the surface of the movable frame (4). The transmission frame (10) is rotatably connected to the extension plate (9). Both ends of the transmission frame (10), the extension plate (9) and the rotating frame (8) abut against the inner wall of the crushing box (1).

2. The crusher discharge port adjustment device according to claim 1, characterized in that: The surface of the movable frame (4) is fixedly fitted with a baffle (20) that abuts against the inner wall of the crushing box (1), and the baffle (20) is rotatably connected to the second crushing roller (5).

3. The crusher discharge port adjustment device according to claim 2, characterized in that: A clamping plate (11) is fixedly installed on the lower outer wall of the crushing box (1). A screening plate (12) that abuts against the lower end of the crushing box (1) is horizontally slidably connected to the inner wall of the clamping plate (11). A limiting plate (13) is fixedly installed on the lower surface of the screening plate (12). A perforated plate (14) that abuts against the lower surface of the screening plate (12) is slidably installed on the surface of the limiting plate (13).

4. The crusher discharge port adjustment device according to claim 3, characterized in that: The orifice plate (14) is internally threaded with a bolt (15), which passes through the orifice plate (14) and abuts against the lower surface of the sieve plate (12).

5. The crusher discharge port adjustment device according to claim 4, characterized in that: The lower surface of the sieve plate (12) is provided with a graduated groove (16).

6. The crusher discharge port adjustment device according to claim 5, characterized in that: The surface of the clamping plate (11) is connected to the clamping plate (17), and the clamping plate (17) is slidably connected to the screening plate (12).