Multi-stage screening movable crusher

Abstract

The utility model discloses a multi-stage screening movable crusher which comprises a rack, a feeding hole is formed in the top of the rack, two crushing rollers are rotationally mounted on the rack, the crushing rollers are positioned below the discharging end of the feeding hole, a plurality of layers of screens are arranged on the rack, a plurality of friction grooves are formed in two sides of the rack, one end of each screen is hinged with a friction block, and the other end of each screen is hinged with a motor. The friction block is connected into the friction groove in a sliding mode, and a linear actuator is installed on the machine frame. The lifting frame is driven by the linear actuator to move up and down, the corresponding elastic assembly slides left and right in the sliding frame, equivalently, one end of the screen is hinged to the rack, the other end of the screen can be lifted or lowered, and therefore the angle of the screen can be adjusted; the second linear actuator pushes the push block to move, one needed screen can be pushed, the discharging position of the smashing roller is changed into the right end from the middle of the screen, and therefore when materials roll to the left end of the screen, the materials can be well screened, and the screening effect on the materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-stage screening crushers, in particular to a multi-stage screening mobile crusher. Background Art

[0002] A crusher is a machine that crushes large-sized solid raw materials into required sizes. The crusher consists of devices such as coarse crushing, fine crushing, and pneumatic conveying, and achieves the purpose of the crusher in the form of high-speed impact. It uses wind energy to form powder at one time and cancels the traditional screening process. It is mainly applied in various industries such as mines and building materials. During the crushing process, the external forces applied to the solid are shear, impact, rolling, and grinding.

[0003] Multi-stage screening can finely classify materials according to different particle sizes. Through the combination of multiple screening surfaces, it can accurately separate particles within a specific particle size range, ensuring the consistency of product particle size. For some industries with extremely high requirements for particle size distribution, such as pharmaceuticals and chemicals, multi-stage screening can effectively remove oversized or undersized particles, ensuring the purity and quality stability of the product.

[0004] In the prior art, for a multi-stage screening mobile crusher, the inclination angle of its multi-stage screening net cannot be adjusted, and the length of the screening net through which the material passes is fixed and cannot be adjusted according to the required screening effect. Therefore, improvements are needed. Summary of the Utility Model

[0005] Based on this, in view of the above technical problems, it is necessary to provide a multi-stage screening mobile crusher.

[0006] To achieve the above object, the utility model provides a multi-stage screening mobile crusher, including a frame. An inlet is provided at the top of the frame. Two crushing rollers are rotatably installed on the frame, and the crushing rollers are located below the discharge end of the inlet. Multiple layers of screening nets are provided on the frame. A number of friction grooves are provided on both sides of the frame. One end of the screening net is hinged with a friction block, and the friction block is slidably connected in the friction groove. A linear actuator is installed on the frame, and a lifting frame is installed at the output end of the linear actuator. A number of sliding frames are installed on the lifting frame. An elastic mechanism is slidably clamped in the sliding frame. The elastic mechanism is hinged with the end of the screening net away from the friction block. A linear actuator two is installed on the sliding frame, and a push block is installed at the output end of the linear actuator two. The push block always abuts against the elastic mechanism.

[0007] Preferably, the elastic mechanism includes a slider, a telescopic support rod, and a hinge block. The slider is slidably clamped in the sliding frame. The slider is connected to the hinge block through the telescopic support rod. A spring is installed in the telescopic support rod. The hinge block is hinged with the end of the screening net away from the friction block.

[0008] Preferably, a clamping groove is provided on the hinge block, and a clamping rod is installed on the slider. The clamping rod is slidably clamped in the clamping groove.

[0009] Preferably, baffles are installed on both sides of the sliding frame, and the baffles are always in contact with the hinge blocks.

[0010] Preferably, through holes are provided on the hinge blocks, and a hinge shaft is installed at one end of the screen mesh away from the friction block. The hinge shaft is rotatably connected in the through holes.

[0011] Preferably, a number of receiving boxes are installed on the frame, and the output end of the screen mesh is always located above the top opening of the receiving box.

[0012] Preferably, barbs are provided at the bottom of the push block, and barb grooves corresponding to the barbs are provided at the bottom of the slider. The barbs are located in the barb grooves.

[0013] Compared with the prior art, the technical solution has at least one of the following beneficial effects:

[0014] The lifting frame is driven by a linear actuator to move up and down, and the corresponding elastic component slides left and right in the sliding frame. It is equivalent to one end of the screen mesh being hinged on the frame, and the other end can be lifted or lowered, thereby realizing the adjustment of the angle of the screen mesh;

[0015] The push block is pushed by the linear actuator II to move, and one of the required screen meshes can be pushed, so that the material falling position of the crushing roller changes from the middle of the screen mesh to the right end. Thus, when the material rolls to the left end of the screen mesh, it can be better screened, improving the screening effect of the material. Description of the Drawings

[0016] Figure 1 is a front view cross-sectional view of an embodiment of the present invention;

[0017] Figure 2 is an internal perspective view of an embodiment of the present invention;

[0018] Figure 3 is a perspective view of one of the sliding frames of an embodiment of the present invention;

[0019] Figure 4 is a perspective view of the linear actuator and the lifting frame of an embodiment of the present invention;

[0020] Figure 5 is an enlarged view of part A in an embodiment of the present invention Figure 1 in;

[0021] In the figure, 1 is the frame; 2 is the feed inlet; 3 are the crushing rollers; 4 is the screen; 5 are the friction grooves; 6 are the friction blocks; 7 is the linear actuator; 8 is the lifting frame; 9 is the sliding frame; 10 is the second linear actuator; 11 is the pushing block; 12 is the slider; 13 is the telescopic support rod; 14 is the hinge block; 15 is the clamping groove; 16 is the clamping rod; 17 is the baffle; 18 is the through hole; 19 is the hinge shaft; 20 is the receiving box; 21 are the barbs; 22 is the barb groove. Detailed implementation manners

[0022] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0023] Please refer to Figures 1 to 5 , the embodiment of the present application provides a multi-stage screening mobile crusher, including a frame 1, a feed inlet 2 is provided at the top of the frame 1, two crushing rollers 3 are rotatably installed on the frame 1, the two crushing rollers 3 are arranged at intervals, and both are driven by a driving device in the prior art such as a motor to rotate and crush. The crushing rollers 3 are located below the discharge end of the feed inlet 2. It is characterized in that multiple layers of screens 4 are provided on the frame 1, several friction grooves 5 are provided on both sides of the frame 1, one end of the screen 4 is hinged with a friction block 6, the friction block 6 is slidably connected in the friction groove 5, and there is a large friction between the friction block 6 and the friction groove 5, so that when normal screening is carried out, the vibration of the screen 4 will not cause the friction block 6 to slide. A linear actuator 7 is installed on the frame 1. The linear actuator 7 can select a hydraulic cylinder or a pneumatic cylinder according to the weight of the material to be multi-stage screened. Correspondingly, its input source is a hydraulic source or a pneumatic source. The output end of the linear actuator 7 is installed with a lifting frame 8, and several sliding frames 9 are installed on the lifting frame 8. An elastic mechanism is slidably clamped in the sliding frame 9, and the friction between the sliding frame 9 and the elastic mechanism is small. One end of the elastic mechanism away from the friction block 6 of the screen 4 is hinged. A second linear actuator 10 is installed on the sliding frame 9. The second linear actuator 10 can be an electric cylinder. The output end of the second linear actuator 10 is installed with a pushing block 11, and the pushing block 11 always abuts against the elastic mechanism. The force of the vibration of the screen 4 can be relieved to a certain extent through the elastic component, and the linear actuator 7 itself should be made of a relatively hard material to make it not easily damaged.

[0024] In this embodiment, the material falls into the crushing roller 3 from the feeding port 2 for crushing. When it is necessary to adjust the inclination angle of the screen 4 to control the speed of the crushed material passing through the surface of the screen to control the screening effect, the lifting frame 8 can be driven by the linear actuator 7 to move up and down. At this time, one end of the screen 4 slides in the friction groove 5 through the articulated friction block 6, which is equivalent to the screen 4 being articulated in the friction groove 5. Thus, when the lifting frame 8 lifts the sliding frame 9 to move, which is equivalent to lifting one end of the screen 4 away from the friction block 6 to move up and down, the screen 4 can rotate around the friction block 6, so that the inclination angle changes. Correspondingly, when the screen 4 rotates, the elastic component will move horizontally left and right correspondingly in the sliding frame 9; and when it is necessary to increase the effective screening surface of one of the screens 4, the linear actuator two 10 can drive the pusher 11 to push the elastic component. At this time, due to the greater thrust of the linear actuator two 10, the friction block 6 can slide in the friction groove 5, so that the material that initially fell from the middle of the screen 4 changes to fall from the right end of the screen 4, enabling the material to roll from the entire upper surface of the screen 4, thereby greatly improving the screening effect; when the linear actuator two 10 pushes the screen 4 to move, since both the friction groove 5 and the sliding frame 9 are horizontally arranged, the inclination angle of the screen 4 remains unchanged; the elastic component always slides and is clamped in the sliding frame 9 without slipping out of the sliding frame 9; the function of the elastic component is that when the material falls on the screen 4, the screen 4 can be vibrated through the elastic component.

[0025] In some embodiments, to facilitate the realization of the elastic function of the elastic component, an elastic mechanism is provided, which includes a slider 12, a telescopic support rod 13 and a hinge block 14. The slider 12 slides and is clamped on the sliding frame 9. The slider 12 is connected to the hinge block 14 through the telescopic support rod 13. A spring is installed in the telescopic support rod 13. The spring is installed at the bottom of the telescopic support rod 13 and its output end is connected to the top of the telescopic support rod 13 to achieve a buffering effect. The telescopic support rod 13 plays a role in supporting and guiding the spring. The hinge block 14 is hinged to one end of the screen 4 away from the friction block 6. Thus, when the material impacts the screen 4 and vibrates, the force is transmitted to the slider 12 by compressing the telescopic support rod 13 through the hinge block 14, and the spring in the telescopic support rod 13 plays a buffering role.

[0026] In some embodiments, to protect the telescopic support rod 13, a card slot 15 is provided on the hinge block 14, and a clamping rod 16 is installed on the slider 12. The clamping rod 16 slides and is clamped in the card slot 15. When the screen 4 vibrates, since one end of the screen 4 is articulated through the friction block 6, the other end articulated with the hinge block 14 will drive the hinge block 14 and slide on the sliding frame 9 to move slightly back and forth when the screen 4 vibrates. Thus, the clamping rod 16 can slide and be clamped in the card slot 15 to reduce the radial pressure on the telescopic support rod 13 and avoid its damage.

[0027] In some embodiments, in order to protect the telescopic support rod 13, baffles 17 are installed on both sides of the sliding frame 9, and the baffles 17 are always in contact with the hinge block 14. The baffles 17 are lower than the corresponding screen 4, and the baffles 17 are in contact with the hinge block 14 so that the screen 4 can only vibrate in one direction when vibrating, thereby increasing the protection effect of the telescopic support rod 13.

[0028] In some embodiments, in order to facilitate the hinge connection between the hinge block 14 and the screen 4 , a through hole 18 is provided on the hinge block 14 , and a hinge shaft 19 is installed at one end of the screen 4 away from the friction block 6 , and the hinge shaft 19 is rotatably connected in the through hole 18 .

[0029] In some embodiments, in order to facilitate receiving the materials screened by the screen 4, a plurality of receiving boxes 20 are installed on the frame 1, and the output end of the screen 4 is always located above the top opening of the receiving box 20. Even if the screen 4 is driven to move to a position far away from the receiving box 20, the screened and rolled materials on it should fall into the receiving box 20 along a parabola.

[0030] In some embodiments, in order to facilitate the reset of the screen 4, a barb 21 is provided at the bottom of the push block 11, and a barb groove 22 corresponding to the barb 21 is provided at the bottom of the slider 12, and the barb 21 is located in the barb groove 22. The barb 21 at the bottom of the push block 11 is driven by the linear actuator 10, and the slider 12 is pulled back through the barb groove 22, so that the screen 4 can be pulled back; the barb 21 and the barb groove 22 are to reduce the impact of the vibration of the screen 4 on the linear actuator 10.

[0031] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0035] In the present utility model, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A multi-stage screening mobile crusher, comprising a frame (1), a feed inlet (2) is arranged at the top of the frame (1), and two crushing rollers (3) are rotatably installed on the frame (1). The crushing rollers (3) are located below the discharge end of the feed inlet (2), and it is characterized in that, The frame (1) is provided with multiple layers of screen meshes (4). There are several friction grooves (5) on both sides of the frame (1). One end of the screen mesh (4) is hinged with a friction block (6), and the friction block (6) is slidably connected in the friction groove (5). A linear actuator (7) is installed on the frame (1), and a lifting frame (8) is installed at the output end of the linear actuator (7). Several sliding frames (9) are installed on the lifting frame (8). An elastic mechanism is slidably clamped in the sliding frame (9). The elastic mechanism is hinged with the end of the screen mesh (4) far from the friction block (6). A second linear actuator (10) is installed on the sliding frame (9), and a push block (11) is installed at the output end of the second linear actuator (10). The push block (11) always abuts against the elastic mechanism.

2. The multi-stage screening mobile crusher according to claim 1, characterized in that, The elastic mechanism includes a slider (12), a telescopic support rod (13) and a hinge block (14). The slider (12) is slidably clamped on the sliding frame (9). The slider (12) is connected with the hinge block (14) through the telescopic support rod (13). A spring is installed in the telescopic support rod (13). The hinge block (14) is hinged with the end of the screen mesh (4) far from the friction block (6).

3. The multi-stage screening mobile crusher according to claim 2, characterized in that, A clamping groove (15) is provided on the hinge block (14). A clamping rod (16) is installed on the slider (12), and the clamping rod (16) is slidably clamped in the clamping groove (15).

4. The multi-stage screening mobile crusher according to claim 2, wherein Baffles (17) are installed on both sides of the sliding frame (9), and the baffles (17) always abut against the hinge block (14).

5. The multi-stage screening mobile crusher according to claim 2, characterized in that, A through hole (18) is provided on the hinge block (14). A hinge shaft (19) is installed at the end of the screen mesh (4) far from the friction block (6), and the hinge shaft (19) is rotatably connected in the through hole (18).

6. The multi-stage screening mobile crusher according to claim 1, characterized in that, Several receiving boxes (20) are installed on the frame (1), and the output end of the screen mesh (4) is always located above the top opening of the receiving box (20).

7. The multi-stage screening mobile crusher according to claim 1, wherein An inverted hook (21) is provided at the bottom of the push block (11). An inverted hook groove (22) corresponding to the inverted hook (21) is provided at the bottom of the slider (12), and the inverted hook (21) is located in the inverted hook groove (22).

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