Crushing device for aggregate production

Abstract

The application relates to the technical field of aggregate processing equipment, in particular to a crushing device for aggregate production, which comprises a hopper, a crushing cone and a rolling mortar wall, a crushing disc extending between the crushing cone and the rolling mortar wall is arranged at the position close to the hammer head of the hopper, the crushing disc is arranged at one end of the crushing cone close to the hopper, the crushing disc comprises a central ball and a cross rod, an end of the cross rod away from the central ball is provided with a crushing rod extending between the crushing cone and the rolling mortar wall, the cross rod is arranged around the central ball and extends to the outside of the cover body, the cross rod is provided with a plurality of cross rods which are uniformly arranged in the horizontal direction of the central ball, and a sealing mechanism for preventing dust from entering the placing bin is arranged on the cover body, the working surface formed between the crushing cone and the rolling mortar wall during the swing movement of the crushing cone is small, and the crushing efficiency is low, the problems are solved, and the application has good application in aggregate processing manufacturers.

Description

Crushing equipment for aggregate production Technical Field

[0001] This invention belongs to the technical field of aggregate processing equipment, and in particular, it designs a crushing device for aggregate production. Background Technology

[0002] Aggregates are an indispensable raw material in infrastructure construction such as buildings and roads. Traditional aggregate crushing devices mainly rely on jaw crushers and cone crushers to crush large stones. Cone crushers rely on the relative motion between the crushing cone and the mantle to crush the stone. The crushing cone makes a gyratory motion, and the structure formed by the crushing cone and the mantle is a fan-shaped working surface with an arc. The stone is squeezed and crushed within this working surface. When the stone first enters the cone crusher, due to the large initial crushing space between the crushing cone and the mantle, the stone cannot receive sufficient crushing force upon entry, and only the stones within the working surface are crushed, resulting in low stone crushing efficiency.

[0003] Chinese Patent Application No. 2023107496473 discloses a cone crusher, including a frame, a fixed cone, a moving cone, an eccentric sleeve, and a drive shaft. The frame has a vertical cavity and a horizontal cavity. The fixed cone is installed on the top of the frame and has a fixed cavity. The inner wall of the fixed cavity forms a first conical surface. The outer wall of the moving cone forms a second conical surface. The second conical surface has a first central axis. The moving cone is rotatably installed in the fixed cavity around the second central axis. The first and second conical surfaces surround the crushing cavity. The eccentric sleeve is rotatably installed in the vertical cavity around the second central axis. The top of the eccentric sleeve is connected to the bottom of the moving cone, and the bottom of the eccentric sleeve is sleeved on a first bevel gear. The drive shaft is horizontally rotatably installed in the horizontal cavity. The end of the drive shaft is fixedly sleeved on a second bevel gear. The second bevel gear is located on top of the first bevel gear, and the second bevel gear meshes with the first bevel gear.

[0004] Regarding the aforementioned technologies, the inventors discovered the following drawbacks: the working surface formed between the crushing cone and the grinding bowl wall during the gyratory motion is relatively small, affecting the crushing efficiency. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a crushing device for aggregate production, which solves the problem that the working surface formed between the crushing cone and the grinding bowl wall during the gyratory motion of the prior art is small and the crushing efficiency is low.

[0006] The technical solution is as follows: a crushing device for aggregate production includes a hopper, a crushing cone, and a grinding wall. A crushing disc extending between the crushing cone and the grinding wall is located near the hammerhead in the hopper. The crushing disc covers the end of the crushing cone near the hopper. The crushing disc includes a central sphere and a crossbar. A crushing rod extending between the crushing cone and the grinding wall is located at the end of the crossbar away from the central sphere. A placement chamber for placing the central sphere is connected to the inner wall of the hopper. The placement chamber includes a base, on which a ball cage universal joint for connecting the central sphere is provided. A cover is provided on the base. The crossbar is arranged around the central sphere and extends to the outside of the cover. There are multiple crossbars, evenly spaced along the horizontal direction of the central sphere, forming a structure where, when the crushing cone rotates in a gyratory motion and forms a working surface with the grinding wall, the crushing rods located at positions opposite to the working surface are all compressed to assist in crushing the stones. A sealing mechanism is provided on the cover to prevent dust from entering the placement chamber.

[0007] Preferably, the cover includes a cover plate and vertical plates. There are multiple vertical plates arranged symmetrically along the center of the cover. There is a predetermined interval between two adjacent vertical plates to form a through groove for the movement of the horizontal bar. The base is provided with insertion holes that cooperate with each vertical plate.

[0008] Preferably, the sealing mechanism includes a placement groove located on the opposite side of the base and the cover plate. A placement box is provided in the placement groove. A winding shaft for storing the sealing tape is rotatably connected in the placement box. A coil spring is provided at the end of the winding shaft. The end of the sealing tape away from the placement box is connected to a crossbar. The sealing tape moves out of the placement box under the action of the crossbar and blocks the gap between adjacent vertical plates. Under the action of the coil spring and the winding shaft, it is stored in the placement box.

[0009] Preferably, both sides of the vertical plate are provided with elongated grooves for the movement of the sealing strip. Rollers for limiting the movement of the sealing strip are provided in the elongated grooves. There are multiple rollers and they are evenly spaced along the elongated grooves. A bracket for fixing the rollers is provided in the elongated grooves, and a brush is provided on the side of the bracket.

[0010] Preferably, the crushing rod has fixing grooves on two opposite sides. There are multiple fixing grooves, which are evenly spaced along the length of the crushing rod. Each fixing groove contains a crushing piece that extends to the outside of the crushing rod, and the thickness of the crushing piece increases sequentially in the direction away from the crossbar.

[0011] Preferably, each of the fixed slots is provided with a hydraulic output unit, the output end of the hydraulic output unit is connected to the crushing disc key, the crushing disc is provided with a hydraulic pump, the hydraulic pump is connected to the hydraulic output unit through a pipeline, and the crushing rod is provided with a pipe groove for placing the pipeline.

[0012] Preferably, a material distribution mechanism is provided between the hopper and the material conveying mechanism. The material distribution mechanism includes a frame, on which a conveyor belt with a circular structure covering the outside of the hopper is provided. A material guide bar is provided on the frame, forming a structure in which the stone material on the conveyor belt enters the hopper through the material guide bar.

[0013] Preferably, there are multiple material-pulling rods, equal in number to the crossbars, and each material-pulling rod is located between two adjacent crossbars. Each material-pulling rod includes a lever and a guide tube. The levers are evenly spaced along the circle of the conveyor belt, and each lever has an arc-shaped structure. The guide tube is a hollow structure, and the length of each lever increases sequentially, forming a structure in which the conveyor belt moves and each lever sequentially pulls up stones along the width of the conveyor belt within a set range.

[0014] The beneficial effect of this invention is that a placement chamber is set inside the hopper, and a crushing rod extending between the crushing cone and the grinding wall is set inside the placement chamber. There are multiple crushing rods and they are arranged symmetrically about the central ball. The central ball is fixed in the base by a ball cage universal joint. When the crushing cone performs a gyratory motion, a part of the side of the crushing cone approaches the grinding wall to form a crushing working surface. The crushing rods located at the working surface and the position opposite to the working surface all move under the action of the crushing cone, increasing the working area of ​​the crushing cone, assisting in crushing stones, and improving the efficiency of the crushing process.

[0015] The sealing mechanism effectively prevents dust from entering the placement chamber. During the crushing process, the sealing strip unfolds as the crossbar moves, blocking the gap between adjacent vertical plates and preventing dust from entering the placement chamber from the crushing area. This protects key components such as the ball cage universal joint from dust corrosion. The rollers and brackets in the long groove further enhance the sealing effect. The rollers make the sealing strip move more smoothly, reducing jamming and wear. The brush can brush away the dust attached to the sealing strip when it moves, reducing the amount of dust entering the placement chamber through the long groove.

[0016] The setting of crushing discs of varying thickness on the crushing rod can assist in crushing the stones between the crushing cone and the grinding wall when the crushing rod moves. The setting of hydraulic pump and hydraulic output unit can provide greater crushing force to the crushing rod when the amount of stones is large.

[0017] The conveyor belt and pusher bar in the material distribution mechanism enable uniform material distribution and feeding. The conveyor belt steadily transports the stone to the top of the hopper, while the pusher bar pushes the stone into the hopper in a certain order and range, making the stone more evenly distributed when it enters the crushing zone. Attached Figure Description

[0018] Figure 1 is a structural diagram of the crushing device for aggregate production according to the present invention;

[0019] Figure 2 is an enlarged view of section A of the structural diagram of the crushing device for aggregate production of the present invention;

[0020] Figure 3 is an enlarged view of section B in the structural diagram of the crushing device for aggregate production of the present invention;

[0021] Figure 4 is a front view of the crushing disc of the crushing device for aggregate production of the present invention;

[0022] Figure 5 is an enlarged view of the crushing disc at point C in the main view of the crushing device for aggregate production of the present invention.

[0023] Figure 6 is a top view of the material distribution mechanism of the crushing device for aggregate production of the present invention;

[0024] Figure 7 is a side view of the material distribution mechanism of the crushing device for aggregate production of the present invention.

[0025] The components include: 1. hopper, 2. crushing cone, 3. grinding mill wall, 4. crushing disc, 5. center ball, 6. crossbar, 7. crushing rod, 8. base, 9. ball cage universal joint, 10. cover, 11. cover plate, 12. vertical plate, 13. insertion hole, 14. placement slot, 15. placement box, 16. winding shaft, 17. sealing strip, 18. long slot, 19. roller, 20. bracket, 21. brush, 22. fixing slot, 23. hydraulic output unit, 24. crushing disc, 25. hydraulic pump, 26. pipeline, 28. conveyor belt, 29. material pusher, 30. pusher rod, and 31. guide pipe. Detailed Implementation

[0026] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Example 1: As shown in the attached drawings of the specification, the crushing device for aggregate production includes a hopper 1, a crushing cone 2, and a grinding wall 3. A hammer is provided at one end of the crushing cone 2. This is prior art and will not be described in detail here. A crushing disc 4 is provided near the hammer in the hopper 1, extending between the crushing cone 2 and the grinding wall 3. The crushing disc 4 covers the end of the crushing cone 2 near the hopper 1. The crushing disc 4 includes a central ball 5 and a crossbar 6. A placement chamber for placing the central ball 5 is connected to the inner wall of the hopper 1. The placement chamber has a hollow cylindrical structure and includes a base 8. A recessed groove is provided at the center of the base 8. A ball cage universal joint 9 for connecting the central ball 5 is bolted in the recessed groove. A cover 10 is provided at the end of the base 8 away from the crushing cone 2. The cover 10 includes a cover plate 11 and vertical plates 12. The cover plate 11 is connected to the inner wall of the hopper via a connecting rod. The connecting rod has screw holes at both ends. The cover plate 11 and the hopper are both fixed to the connecting rod with bolts. The vertical plates 12 are integral with the cover 10. There are multiple vertical plates 12, which are arranged symmetrically along the center of the cover 10. The base 8 is provided with insertion holes that cooperate with each vertical plate 12 to facilitate quick positioning when the vertical plates 12 are connected to the base 8. The vertical plates 12 are fixed to the base 8 with bolts. A crossbar 6 is arranged around the central ball 5. There are multiple crossbars 6, which are evenly spaced along the horizontal direction of the central ball 5. There is a predetermined interval between two adjacent vertical plates 12 to form a through groove structure for the movement of the crossbar 6. A crushing rod 7 is provided at the end of the crossbar 6 away from the central ball 5, extending between the crushing cone 2 and the grinding wall 3. The crushing rod 7 has a rectangular cross-section. When the crushing cone 2 rotates in a gyratory motion and forms a working surface with the grinding wall 3, the crushing rods 7, located at positions opposite to the working surface, assist in crushing the stones under compression. Fixed grooves 22 are provided on two opposite sides of the crushing rod 7. Multiple fixed grooves 22 are evenly spaced along the length of the crushing rod 7, and each fixed groove 22 has a cylindrical structure. Each fixed groove 22 is detachably connected to a crushing plate 24 extending to the outside of the crushing rod 7. The crushing plate 24 has a rectangular plate structure, and its thickness increases sequentially in the direction away from the crossbar 6. A sealing mechanism is provided inside the cover 10 to prevent dust from entering the placement chamber. The sealing mechanism includes placement grooves 14 located opposite to the base 8 and the cover plate 11. Multiple placement grooves 14 are sequentially arranged within a through groove formed by two adjacent vertical plates 12. A placement box 15 is bolted into the placement slot 14. A winding shaft 16 for storing the sealing strip 17 is rotatably connected inside the placement box 15. A coil spring is provided at the end of the winding shaft 16. A groove for storing the coil spring is provided on the inner wall of the placement box 15. The winding shaft 16 and the coil spring are existing technologies. A long rod is glued to one end of the sealing strip 17 extending out of the placement box 15. The upper rod is bolted to the crossbar 6. Under the action of the crossbar 6, the sealing strip 17 moves out of the placement box 15 and blocks the gap between the adjacent vertical plates 12. Under the action of the coil spring and the winding shaft 16, it is stored in the placement box 15.

[0028] In one embodiment, as shown in the accompanying drawings, both sides of the vertical plate 12 are provided with elongated grooves 18 for the movement of the sealing strip 17. The elongated grooves 18 have an arc-shaped structure, and rollers 19 for limiting the movement of the sealing strip 17 are rotatably connected within the elongated grooves 18. There are multiple rollers 19, which are evenly spaced along the elongated grooves 18. A bracket 20 for fixing the rollers 19 is provided within the elongated grooves 18. The bracket 20 is bolted to the inner walls of the elongated grooves 18. The bracket 20 has an arc-shaped structure suitable for the elongated grooves 18. Multiple brushes 21 are screwed to the side of the bracket 20 and are arranged sequentially along the length of the bracket 20.

[0029] In one embodiment, as shown in the accompanying drawings, a hydraulic output unit 23 is fixed in each fixing slot 22 with screws. The output end of the hydraulic output unit 23 is keyed to the crushing disc 24. A hydraulic pump 25 is provided in the crushing disc 4. The hydraulic pump 25 and the hydraulic output unit 23 are prior art. The hydraulic pump 25 and the hydraulic output unit 23 are connected by a pipeline 26. A groove for placing the pipeline 26 is provided in the crushing rod 7.

[0030] In one embodiment, as shown in the accompanying drawings, a material distribution mechanism is provided between the hopper 1 and the material conveying mechanism. The material distribution mechanism includes a frame, on which a conveyor belt 28, which is annular in shape and covers the outside of the hopper 1, is provided. The conveyor belt 28 has a drop area for conveying stones via the material conveying mechanism. Multiple material guide rods 29 are provided on the frame and are centrally symmetrically arranged along the center of the conveyor belt 28, forming a structure where stones on the conveyor belt 28 enter the hopper 1 via the material guide rods 29. The number of material-pushing rods 29 is equal to that of the crossbars 6. Each material-pushing rod 29 is located between two adjacent crossbars 6. Each material-pushing rod 29 includes a lever 30 for scraping stones from the conveyor belt 28 and a guide tube 31 for guiding the movement of the stones. Each lever 30 is evenly spaced along the circle where the conveyor belt 28 is located. Each lever 30 has an arc-shaped cross-section. The guide tube 31 is hollow and is inclined. The length of each lever 30 increases sequentially in a clockwise direction away from the material drop area, forming a structure in which the conveyor belt 28 moves and each lever 30 sequentially picks up stones along the width of the conveyor belt 28 according to a set range.

[0031] This invention features a placement chamber within the hopper, containing multiple crushing rods extending between the crushing cone and the mantle wall. These rods are arranged symmetrically about a central sphere, which is fixed to the base via a ball-cage universal joint. During the gyratory motion of the crushing cone, a portion of its side faces the mantle wall, forming a crushing working surface. The crushing rods positioned opposite each other on this working surface move under the action of the crushing cone, increasing its working area, assisting in crushing stones, and improving crushing efficiency. A sealing mechanism effectively prevents dust from entering the placement chamber. During crushing, the sealing strip expands with the movement of the horizontal bar, blocking the gap between adjacent vertical plates and preventing dust from entering through the crushing chamber. The crushing zone enters the placement chamber, protecting critical components such as the ball cage universal joint from dust corrosion. Rollers and supports within the long groove further enhance the sealing effect. The rollers ensure smoother movement of the sealing strip, reducing jamming and wear. Brushes remove dust adhering to the sealing strip as it moves, minimizing dust entry into the placement chamber via the long groove. The varying thickness of the crushing discs on the crushing rod assists in crushing stones between the crushing cone and the grinding bowl wall during its movement. The hydraulic pump and hydraulic output unit provide greater crushing force to the crushing rod when dealing with larger quantities of stones. The conveyor belt and feeding rod in the distribution mechanism ensure uniform stone distribution and feeding. The conveyor belt stably transports the stones above the hopper, while the feeding rod feeds the stones into the hopper in a specific order and range, resulting in a more even distribution of stones upon entering the crushing zone.

[0032] The present invention has been described in detail above through specific embodiments and examples, but these are not intended to limit the invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. A crushing device for aggregate production, comprising a hopper (1), a crushing cone (2), and a grinding mill wall (3), characterized in that, A crushing disc (4) extending between the crushing cone (2) and the grinding wall (3) is provided near the hammerhead of the hopper (1). The crushing disc (4) covers one end of the crushing cone (2) near the hopper (1). The crushing disc (4) includes a central ball (5) and a crossbar (6). A crushing rod (7) extending between the crushing cone (2) and the grinding wall (3) is provided at the end of the crossbar (6) away from the central ball (5). A placement chamber for placing the central ball (5) is connected to the inner wall of the hopper (1). The placement chamber includes a base (8). A device for placing the central ball (5) is provided on the base (8). A ball cage universal joint (9) is connected to the center ball (5). A cover (10) is provided on the base (8). The crossbar (6) is arranged around the center ball (5) and extends to the outside of the cover (10). There are multiple crossbars (6) and they are evenly spaced along the horizontal direction of the center ball (5). When the crushing cone (2) rotates and forms a working surface with the grinding wall (3), the crushing rods (7) located at the working surface and the working surface opposite to each other are all under the pressure to assist in crushing the stone blocks. A sealing mechanism is provided on the cover (10) to prevent dust from entering the storage chamber.

2. The crushing device for aggregate production according to claim 1, characterized in that, The cover (10) includes a cover plate (11) and vertical plates (12). There are multiple vertical plates (12) arranged symmetrically along the center of the cover (10). There is a set interval between two adjacent vertical plates (12) to form a through groove for the movement of the crossbar (6). The base (8) is provided with a socket for use with each vertical plate (12).

3. The crushing device for aggregate production according to claim 2, characterized in that, The sealing mechanism includes a placement groove (14) located on the opposite side of the base (8) and the cover plate (11). A placement box (15) is provided in the placement groove (14). A winding shaft (16) for storing the sealing strip (17) is rotatably connected in the placement box (15). A coil spring is provided at the end of the winding shaft (16). The end of the sealing strip (17) away from the placement box (15) is connected to the crossbar (6). The sealing strip (17) moves out of the placement box (15) under the action of the crossbar (6) and blocks the gap between the adjacent vertical plates (12). Under the action of the coil spring and the winding shaft (16), it is stored in the placement box (15).

4. The crushing device for aggregate production according to claim 3, characterized in that, Both sides of the vertical plate (12) are provided with long grooves (18) for the movement of the sealing strip (17). Rollers (19) for limiting the movement of the sealing strip (17) are provided in the long grooves (18). There are multiple rollers (19) and they are evenly spaced along the long grooves (18). A bracket (20) for fixing the rollers (19) is provided in the long grooves (18). A brush (21) is provided on the side of the bracket (20).

5. The crushing device for aggregate production according to claim 1, characterized in that, The crushing rod (7) has a fixing groove (22) on its two opposite sides. There are multiple fixing grooves (22) and they are evenly spaced along the length of the crushing rod (7). Each fixing groove (22) is provided with a crushing piece (24) extending to the outside of the crushing rod (7). The thickness of the crushing piece (24) increases sequentially in the direction away from the crossbar (6).

6. The crushing device for aggregate production according to claim 5, characterized in that, Each of the fixed slots (22) is provided with a hydraulic output unit (23), the output end of the hydraulic output unit (23) is keyed to the crushing disc (24), the crushing disc (4) is provided with a hydraulic pump (25), the hydraulic pump (25) is connected to the hydraulic output unit (23) through a pipeline (26), and the crushing rod (7) is provided with a slot for placing the pipeline (26).

7. The crushing device for aggregate production according to claim 1, characterized in that, A material distribution mechanism is provided between the hopper (1) and the material conveying mechanism. The material distribution mechanism includes a frame. A conveyor belt (28) with a circular structure is provided on the frame and covers the outside of the hopper (1). A material-pushing rod (29) is provided on the frame, forming a structure in which the stone material on the conveyor belt (28) enters the hopper (1) through the material-pushing rod (29).

8. The crushing apparatus for aggregate production according to claim 7, characterized in that, There are multiple material-pulling rods (29) and the number is equal to that of the crossbars (6). Each material-pulling rod (29) is located between two adjacent crossbars (6). Each material-pulling rod (29) includes a lever (30) and a guide tube (31). Each lever (30) is evenly spaced along the circle where the conveyor belt (28) is located. Each lever (30) has an arc-shaped structure. The guide tube (31) has a hollow structure. The length of each lever (30) increases sequentially, forming a structure in which the conveyor belt (28) moves and each lever (30) sequentially pulls stone materials along the width direction of the conveyor belt (28) according to a set range.

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