A dual shaft crusher

Abstract

The utility model discloses a double shaft breaker, include: frame, the pulverization box is installed in the inside of frame, the beneficial effect of the utility model is: through having set the adjustment unit, the servo motor drive worm rotation in the adjustment unit, the worm drives the rotation of the worm wheel meshed with it, and then makes the bidirectional screw rod rotate, and the symmetrical installation of the one -way moving slider of bidirectional screw rod outside will along bidirectional screw rod do relative or face -to -face movement with the rotation of bidirectional screw rod, since the bottom of two limit sliding blocks is fixed with the one -way moving slider, and the pulverization axle is rotatably connected with the limit sliding block, so the movement of one -way moving slider will drive the pulverization axle to move, thereby realizes the adjustment of the crushing interval between double axle, and has improved the versatility and crushing quality of equipment.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, specifically a twin-shaft crusher. Background Technology

[0002] In today's industrial production, crushing is an indispensable key link in many industries (such as mining, building material manufacturing, resource recycling, and municipal solid waste disposal). Currently, there are various types of twin-shaft crushers on the market. Their basic working principle is to crush materials by using two relatively rotating crushing shafts and crushing blades on the shafts to squeeze and shear them. However, some existing twin-shaft crushers have a fixed and non-adjustable crushing distance between the two crushing shafts, which is only suitable for crushing materials of specific sizes and hardness. When it is necessary to crush materials of different sizes or hardness, it is necessary to change to crushing equipment of different specifications, which affects the continuity and efficiency of production. Utility Model Content

[0003] The purpose of this utility model is to provide a twin-shaft crusher to solve the problem mentioned in the background art that some existing twin-shaft crushers have a fixed and non-adjustable crushing distance between their two crushing shafts, which can only be used to crush materials of specific sizes and hardness. When it is necessary to crush materials of different sizes or hardness, it is necessary to change to crushing equipment of different specifications, which affects the continuity and efficiency of production.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a twin-shaft crusher, comprising:

[0005] frame;

[0006] The crushing box is installed inside the frame. Four moving blocks are symmetrically slidably arranged inside the crushing box. Two crushing shafts are movably arranged inside the crushing box, and the crushing shafts are rotatably connected to the inside of the moving blocks.

[0007] The first fixing box is installed inside the frame, and the second fixing box is installed inside the frame. The top of both the first fixing box and the second fixing box is fixed with a top guide frame.

[0008] A limiting slider is symmetrically slidably disposed inside the top guide frame, and the crushing shaft is rotatably connected to the limiting slider;

[0009] An adjustment section is located inside the first fixed box, wherein the two limit sliders are connected to the adjustment section;

[0010] The limiting part is located inside the second fixed box, and the other two limiting sliders are connected to the limiting part.

[0011] As a preferred embodiment of this utility model: the adjusting part includes a bidirectional lead screw, a first movable slider, a worm gear, a worm, and a servo motor. The bidirectional lead screw is rotatably mounted inside the first fixed box. A first movable slider is symmetrically mounted on the outer side of the bidirectional lead screw. The first movable slider is slidably connected to the first fixed box. The bottoms of the two limiting sliders are fixedly connected to the first movable slider. A worm gear is fixedly mounted on the outer side of the bidirectional lead screw. A worm is rotatably mounted inside the first fixed box. The worm meshes with the worm gear. A servo motor is mounted on one side of the first fixed box. The output end of the servo motor is fixedly connected to the worm.

[0012] As a preferred embodiment of this utility model: the limiting part includes a second limiting rod and a second movable slider. The second movable slider is symmetrically slidably arranged inside the second fixed box. The bottoms of the other two limiting sliders are fixedly connected to the second movable slider. The second limiting rod is slidably arranged inside the second movable slider. The second limiting rod is fixedly connected to the second fixed box.

[0013] As a preferred embodiment of this utility model: two sliding seats are slidably arranged on the top of the frame, a drive motor is installed on the top of the sliding seats, the output end of the drive motor is fixedly connected to the crushing shaft, and three limiting rods are symmetrically slidably arranged inside the sliding seats. Two fixing plates are fixedly connected to both ends of the three limiting rods, and the bottom of the two fixing plates is welded and fixed to the frame.

[0014] As a preferred embodiment of this utility model: a first limiting rod is symmetrically slidably arranged inside the moving block, and a first fixed support plate is fixedly connected to both ends of the first limiting rod. One side of the first fixed support plate is fixedly connected to the crushing box.

[0015] As a preferred embodiment of this utility model: a feeding frame is fixedly connected to the bottom of the crushing box, a top fixing frame is installed on the top of the crushing box by bolts, and a protective mesh frame that cooperates with the drive motor is installed on the top of the frame by bolts.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is equipped with an adjustment part, in which a servo motor drives the worm gear to rotate, the worm gear drives the meshing worm wheel to rotate, and thus the bidirectional lead screw rotates. The first movable slider, symmetrically installed on the outer side of the bidirectional lead screw, will move relative to or towards the bidirectional lead screw as the bidirectional lead screw rotates. Since the bottoms of the two limit sliders are fixedly connected to the first movable slider, and the crushing shaft is rotatably connected to the limit slider, the movement of the first movable slider will drive the crushing shaft to move, thereby realizing the adjustment of the crushing distance between the two shafts, improving the versatility of the equipment and the crushing quality; by setting The device includes a limiting section. A second movable slider is symmetrically slidably mounted inside the second fixed box. The bottoms of two other limiting sliders are fixedly connected to the second movable slider. Simultaneously, a second limiting rod, fixedly connected to the second fixed box, is slidably mounted inside the second movable slider. The second limiting rod limits the movement of the second movable slider, preventing excessive movement or shaking. A third limiting rod is symmetrically slidably mounted inside the sliding seat. Both ends of the third limiting rod are fixedly connected to the second fixed support plate. The bottom of the second fixed support plate is welded to the frame, limiting the sliding seat and ensuring the stability of the crushing shaft driven by the drive motor, thus guaranteeing stable and reliable crushing operations. 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 the drive motor structure of this utility model;

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

[0020] Figure 4 This is a bottom view of the internal structure of the No. 1 and No. 2 fixing boxes of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the top guide frame of this utility model;

[0022] Figure 6 This is a schematic diagram of the moving block and the first limiting rod of this utility model;

[0023] Figure 7 This is a schematic diagram of the crushing shaft and crushing box of this utility model.

[0024] In the diagram: 1. Frame; 2. Crushing box; 3. Top fixed frame; 4. Feeding frame; 5. First fixed box; 6. Top guide frame; 7. Limiting slider; 8. First moving slider; 9. Bidirectional lead screw; 10. Worm gear; 11. Worm; 12. Servo motor; 13. Moving block; 14. First limiting rod; 15. First fixed support plate; 16. Crushing shaft; 17. Second fixed box; 18. Second limiting rod; 19. Second moving slider; 20. Sliding seat; 21. Drive motor; 22. Third limiting rod; 23. Second fixed support plate; 24. Protective mesh frame. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 7 This utility model provides a technical solution: a dual-shaft crusher, comprising: a frame 1; a crushing box 2 bolted inside the frame 1, with four symmetrically sliding moving blocks 13 inside the crushing box 2, and two movably arranged crushing shafts 16 inside the crushing box 2, the crushing shafts 16 being rotatably connected to the moving blocks 13; a first fixed box 5 bolted inside the frame 1, and a second fixed box 17 bolted inside the frame 1, with a top guide frame 6 fixed to the top of both the first fixed box 5 and the second fixed box 17; symmetrically sliding limit sliders 7 slidably arranged inside the top guide frame 6, the crushing shafts 16 being rotatably connected to the limit sliders 7; an adjustment part located inside the first fixed box 5, with two limit sliders 7 connected to the adjustment part; and a limit part located inside the second fixed box 17, with the other two limit sliders 7 connected to the limit part.

[0027] It should be noted that in this embodiment, the operator places the material to be crushed between the two crushing shafts 16, ensuring that the protective mesh frame 24 at the top of the frame 1, which cooperates with the drive motor 21, is securely installed to ensure operational safety. The drive motor 21, installed on the sliding seat 20, is started via an external controller. The output end of the drive motor 21 is fixedly connected to the crushing shaft 16. In the initial state of the equipment, the sliding seat 20 is located at a suitable position at the top of the frame 1. The three limit rods 22, which are symmetrically slidably arranged inside, and the two fixed support plates 23, which are fixed at both ends, provide precise guidance and stable support for the sliding seat 20. When the drive motor 21 starts, its rotational power is directly transmitted to the crushing shaft 16, causing the crushing shaft 16 to start rotating. When it is necessary to adjust the crushing speed according to the size and hardness of the material, the crushing speed can be adjusted accordingly. When adjusting the crushing distance between the two crushing shafts 16, the external controller starts the servo motor 12 inside the first fixed box 5. The output end of the servo motor 12 is fixedly connected to the worm gear 11. The worm gear 11 is meshed with the worm wheel 10 fixedly installed on the outside of the bidirectional lead screw 9. The servo motor 12 drives the worm gear 11 to rotate, and the worm gear 11 then transmits the rotational motion to the worm wheel 10, which in turn drives the bidirectional lead screw 9 to rotate. When the bidirectional lead screw 9 rotates, the first moving slider 8 will move linearly along the bidirectional lead screw 9, thereby driving the limit slider 7 to move. Since the crushing shaft 16 is rotatably connected to the limit slider 7, the movement of the limit slider 7 will drive the crushing shaft 16 to move, realizing the adjustment of the distance between the two crushing shafts 16. The transmission structure of the worm wheel 10 and the worm gear 11 has a self-locking characteristic. When the servo motor 12 stops rotating, the worm gear 11 prevents the worm wheel 10 from rotating in the opposite direction, thereby preventing the bidirectional lead screw 9 from rotating back. This fixes the positions of the first moving slider 8 and the limit slider 7, ensuring the stability of the crushing distance between the two shafts. This avoids changes in the distance due to vibration or other factors during the crushing process, which could affect the crushing effect. During the adjustment of the position of the crushing shaft 16 by the adjusting section, since the crushing shaft 16 is fixedly connected to the output end of the drive motor 21, when the crushing shaft 16 moves, the sliding seat 20 will slide along the third limit rod 22, causing the drive motor 21 to move accordingly. The guide structure composed of the third limit rod 22 and the second fixed support plate 23 ensures that the sliding seat 20 can only move in a straight line in a specific direction, ensuring the synchronization of the drive motor 21 and the crushing shaft 16. The movement of the shaft ensures stable and continuous power transmission, preventing uneven stress or damage to transmission components. During operation, the limiting part inside the second fixed box 17 guarantees the axial stability of the crushing shaft 16. A second movable slider 19 is symmetrically slidably arranged inside the second fixed box 17. The bottoms of the other two limiting sliders 7 are fixedly connected to the second movable slider 19. A second limiting rod 18 is slidably arranged inside the second movable slider 19 and is fixedly connected to the second fixed box 17. The second limiting rod 18 restricts the axial movement range of the second movable slider 19, preventing excessive movement due to external forces. This ensures the axial stability of the limiting sliders 7 and the crushing shaft 16 connected to the second movable slider 19.To ensure smooth crushing operations, four symmetrically sliding moving blocks 13 are arranged inside the crushing box 2. Each moving block 13 has a symmetrically sliding limit rod 14, with a fixed support plate 15 fixed to both ends. The limit rod 14 provides precise guidance for the sliding of the moving blocks 13, ensuring they slide smoothly only in a specified straight direction. This prevents the moving blocks 13 from deviating, jamming, or shaking during sliding. Since the crushing shaft 16 is internally rotatably connected to the moving blocks 13, the stable sliding of the moving blocks 13 ensures the stability of the rotatable connection between the crushing shaft 16 and the moving blocks 13, thus guaranteeing the stability of the crushing shaft 16 during rotation. When the drive motor 21 drives the crushing shaft 16 to rotate, and the distance between the two shafts is adjusted to a suitable position, the material falls between the two rotating crushing shafts 16. The crushing blades on the crushing shafts 16 squeeze and shear the material, breaking it into small pieces. The crushed material is then discharged from the equipment through the discharge frame 4 at the bottom of the crushing box 2 under gravity.

[0028] The specific architecture and operation logic of the drive motor 21 and servo motor 12 in this application to achieve coordinated control through an external controller are consistent with the existing technology in this field. The servo motor 12 used is equipped with an encoder, which can provide real-time feedback on the speed, position and other information of the servo motor 12. This control method has been maturely applied in many similar industrial scenarios, so it will not be discussed in detail here.

[0029] In one embodiment, such as Figure 2 , Figure 4 and Figure 5 As shown, the adjustment unit includes a bidirectional lead screw 9, a first movable slider 8, a worm gear 10, a worm 11, and a servo motor 12. The bidirectional lead screw 9 is rotatably mounted inside the first fixed box 5. The first movable slider 8 is symmetrically mounted on the outer side of the bidirectional lead screw 9. The first movable slider 8 is slidably connected to the first fixed box 5. The bottoms of the two limit sliders 7 are fixedly connected to the first movable slider 8. The worm gear 10 is fixedly mounted on the outer side of the bidirectional lead screw 9. The worm 11 is rotatably mounted inside the first fixed box 5. The worm 11 is meshed with the worm gear 10. The servo motor 12 is bolted to one side of the first fixed box 5. The output end of the servo motor 12 is fixedly connected to the worm 11.

[0030] It should be noted that in this embodiment, the transmission structure of the worm gear 10 and the worm 11 has a self-locking characteristic. When the servo motor 12 stops rotating, the worm 11 can prevent the worm gear 10 from rotating in the opposite direction, thereby preventing the bidirectional lead screw 9 from rotating back. This fixes the positions of the first moving slider 8 and the limiting slider 7, ensuring the stability of the crushing distance between the two shafts and avoiding the impact on the crushing effect caused by changes in the distance due to vibration and other factors during the crushing process.

[0031] In one embodiment, such as Figure 4As shown, the limiting part includes a second limiting rod 18 and a second movable slider 19. The second movable slider 19 is symmetrically slidably arranged inside the second fixed box 17. The bottoms of the other two limiting sliders 7 are fixedly connected to the second movable slider 19. The second limiting rod 18 is slidably arranged inside the second movable slider 19. The second limiting rod 18 is fixedly connected to the second fixed box 17.

[0032] It should be noted that, in this embodiment, during the operation of the equipment, the second limiting rod 18 can limit the axial movement range of the second moving slider 19, preventing it from moving excessively due to external forces, thereby ensuring the stability of the limiting slider 7 and the crushing shaft 16 connected to the second moving slider 19 in the axial position, and ensuring the smooth progress of the crushing operation.

[0033] In one embodiment, such as Figures 1 to 3 As shown, two sliding seats 20 are slidably arranged on the top of the frame 1. A drive motor 21 is bolted to the top of the sliding seat 20. The output end of the drive motor 21 is fixedly connected to the crushing shaft 16. A third limiting rod 22 is symmetrically slidably arranged inside the sliding seat 20. A second fixed support plate 23 is fixedly connected to both ends of the third limiting rod 22. The bottom of the second fixed support plate 23 is welded and fixed to the frame 1.

[0034] It should be noted that in this embodiment, during the operation of the equipment, when the crushing shaft 16 moves due to the action of the adjusting part 2, the sliding seat 20 can slide along the third limit rod 22, driving the drive motor 21 to move accordingly, thereby realizing the synchronous movement of the drive motor 21 and the crushing shaft 16, ensuring the stability and continuity of power transmission.

[0035] In one embodiment, such as Figure 6 As shown, a first limiting rod 14 is symmetrically slidably arranged inside the moving block 13. Both ends of the first limiting rod 14 are fixedly connected to a first fixed support plate 15. One side of the first fixed support plate 15 is fixedly connected to the crushing box 2.

[0036] It should be noted that in this embodiment, the first limiting rod 14 provides precise guidance for the sliding of the moving block 13, so that the moving block 13 can only slide smoothly in the specified straight direction, avoiding problems such as offset, jamming or shaking of the moving block 13 during the sliding process, and ensuring the stability of the rotational connection between the crushing shaft 16 and the moving block 13.

[0037] In one embodiment, such as Figures 1 to 7 As shown, a feeding frame 4 is fixed to the bottom of the crushing box 2, a top fixing frame 3 is installed on the top of the crushing box 2 by bolts, and a protective net frame 24 that cooperates with the drive motor 21 is installed on the top of the frame 1 by bolts.

[0038] It should be noted that in this embodiment, a protective mesh frame 24 that cooperates with the drive motor 21 is bolted to the top of the frame 1. The drive motor 21 can be adjusted and moved within the protective mesh frame 24, ensuring the safety of operation.

[0039] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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.

[0040] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A twin-shaft crusher, characterized in that, include: Rack (1); The crushing box (2) is installed inside the frame (1). Four moving blocks (13) are symmetrically slidably arranged inside the crushing box (2). Two crushing shafts (16) are movably arranged inside the crushing box (2). The crushing shafts (16) are rotatably connected to the inside of the moving blocks (13). The first fixed box (5) is installed inside the frame (1). The second fixed box (17) is installed inside the frame (1). The top of the first fixed box (5) and the second fixed box (17) are both fixed with a top guide frame (6). The limiting slider (7) is symmetrically slidably arranged inside the top guide frame (6), and the crushing shaft (16) is rotatably connected to the limiting slider (7); An adjustment section is located inside the first fixed box (5), wherein the two limiting sliders (7) are connected to the adjustment section; The limiting part is located inside the second fixed box (17), and the other two limiting sliders (7) are connected to the limiting part.

2. The twin-shaft crusher according to claim 1, characterized in that: The adjustment unit includes a bidirectional lead screw (9), a first movable slider (8), a worm gear (10), a worm (11), and a servo motor (12). The bidirectional lead screw (9) is rotatably installed inside the first fixed box (5). The first movable slider (8) is symmetrically installed on the outside of the bidirectional lead screw (9). The first movable slider (8) is slidably connected to the first fixed box (5). The bottoms of the two limiting sliders (7) are fixedly connected to the first movable slider (8). The worm gear (10) is fixedly installed on the outside of the bidirectional lead screw (9). The worm (11) is rotatably installed inside the first fixed box (5). The worm (11) is meshed with the worm gear (10). The servo motor (12) is installed on one side of the first fixed box (5). The output end of the servo motor (12) is fixedly connected to the worm (11).

3. A twin-shaft crusher according to claim 2, characterized in that: The limiting part includes a second limiting rod (18) and a second movable slider (19). The second movable slider (19) is symmetrically slidably arranged inside the second fixed box (17). The bottoms of the other two limiting sliders (7) are fixedly connected to the second movable slider (19). The second limiting rod (18) is slidably arranged inside the second movable slider (19). The second limiting rod (18) is fixedly connected to the second fixed box (17).

4. A twin-shaft crusher according to claim 1, characterized in that: Two sliding seats (20) are slidably arranged on the top of the frame (1). A drive motor (21) is installed on the top of the sliding seat (20). The output end of the drive motor (21) is fixedly connected to the crushing shaft (16). A third limiting rod (22) is symmetrically slidably arranged inside the sliding seat (20). A second fixed support plate (23) is fixedly connected to both ends of the third limiting rod (22). The bottom of the second fixed support plate (23) is welded and fixed to the frame (1).

5. A twin-shaft crusher according to claim 1, characterized in that: The movable block (13) is symmetrically slidably provided with a first limiting rod (14), and both ends of the first limiting rod (14) are fixedly connected to a first fixed support plate (15). One side of the first fixed support plate (15) is fixedly connected to the crushing box (2).

6. A twin-shaft crusher according to claim 1, characterized in that: The bottom of the crushing box (2) is fixed with a feeding frame (4), the top of the crushing box (2) is bolted with a top fixing frame (3), and the top of the frame (1) is bolted with a protective net frame (24) that cooperates with the drive motor (21).

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