Discharging chute for jaw crusher

Abstract

The utility model belongs to the field of material crushing, and particularly relates to a blanking chute for a jaw crusher, which comprises a crusher body, a base, a screening component, a chute, an electric push rod, a baffle and the like, the crusher body is mounted at the top end of the base, a feeding hole is formed in the upper part of the crusher body, the screening component is used for screening materials, and the chute is arranged at the upper part of the base. The inclined groove is fixedly connected to the front side of the base, the inclination of the inclined groove extends upwards from the left portion to the right portion downwards to form a material guiding inclined face with the left higher than the right, the electric push rod is installed on the right portion of the inclined groove, a telescopic rod of the electric push rod faces downwards, and the baffle is fixedly connected to the telescopic rod of the electric push rod. Through the design of the screening assembly, large and small materials can be effectively separated, it is ensured that small materials are directly conveyed to the designated position, large materials automatically enter the secondary crushing process, the requirement for manual picking is avoided, the labor intensity and the time cost are reduced, the overall crushing efficiency is improved, and the safety risk is remarkably reduced.

Description

Technical Field

[0001] This utility model belongs to the field of material crushing, and in particular relates to a feeding chute for a jaw crusher. Background Technology

[0002] Jaw crushers are common crushing equipment, mainly used for coarse or medium crushing of various hard and brittle materials. They are widely used in mining, metallurgy, building materials, highways, railways, water conservancy, and chemical industries, and are suitable for crushing various ores and rocks with a compressive strength not exceeding 320 MPa, such as granite, basalt, and river pebbles. The feed chute is a channel used to guide materials into the crusher, ensuring that the materials can enter the crushing chamber smoothly and evenly.

[0003] Traditional crusher chute designs are relatively simple, typically only allowing material to be directly fed into the crusher for primary crushing. The crushed material is then discharged directly. However, when crushing material, the size of the crushed material varies considerably. Large pieces may not be completely crushed in one go and require further processing, while small pieces may have already reached the required particle size standard and do not require further crushing. Large pieces that are not completely crushed often need to be manually picked out and then fed back into the crusher through the chute for secondary crushing. This process increases labor intensity and time costs. Furthermore, when manually picking out large pieces, operators need to be close to the crusher and the chute, posing certain safety risks such as material splashing and mechanical injury.

[0004] Therefore, there is a particular need for a discharge chute for jaw crushers to solve the above problems. Utility Model Content

[0005] To overcome the shortcomings of traditional crusher chute designs, such as simple material crushing, uneven material crushing, the need for manual sorting and re-crushing of large pieces, which increases labor intensity and time costs, and poses safety risks, this utility model provides a material chute for jaw crushers.

[0006] This utility model is achieved through the following technical means: a feeding chute for a jaw crusher, comprising a crusher body, a base, a screening component, an inclined chute, an electric push rod, a baffle, a conveying component, and a return component. The crusher body is installed on the top of the base, and the feed inlet is opened on the upper part of the crusher body. The screening component for screening material size is set on the upper part of the base. The inclined chute is fixed to the front side of the base, and its inclination extends upward from the left to downward from the right, forming a guide slope that is higher on the left and lower on the right. The electric push rod is installed on the right side of the inclined chute, with its telescopic rod facing downward. The baffle is fixed to the telescopic rod of the electric push rod and is located on the right side of the inclined chute, making sliding contact with it. The conveying component for conveying small pieces of material is set on the upper part of the base, and the return component for circulating large pieces of material is set on the right side of the base.

[0007] As a preferred technical solution of this utility model, the screening assembly includes a screen plate, springs, fixed blocks, and guide rods. The four fixed blocks are distributed front to back and fixed to the upper part of the base. Each guide rod is slidably connected to each fixed block. The screen plate is fixed between the tops of the four guide rods, and the two guide rods on the front side are lower than the two guide rods on the rear side, so that the screen plate is in an inclined state. The inclination of the screen plate extends downward from the front to the rear and upward, forming an inclined surface that is lower in the front and higher in the rear. The screen plate is made of high-strength metal. The inclined groove is located in front of the screen plate. Each spring is sleeved on the outside of each guide rod, and its two ends are fixedly connected to the screen plate and the corresponding fixed block, respectively.

[0008] As a preferred technical solution of this utility model, the conveying assembly includes a conveyor belt, a conveyor roller, a support plate, and a first motor. The two support plates are symmetrical and fixed to the rear side of the middle of the base. One conveyor roller is rotatably connected between the two support plates, and the other conveyor roller is rotatably connected to the front side of the middle of the base. The conveyor belt is rotatably connected between the outside of the two conveyor rollers, and its left and right sides respectively contact the two support plates. The screen plate is located directly above the conveyor belt, and the transverse lengths of the two are equal. A protective pad is provided on the surface of the conveyor belt. The first motor is installed at a position slightly behind the right side of the right support plate, with its output shaft facing left and passing through the right support plate to be fixedly connected to the right end of the rear conveyor roller.

[0009] As a preferred technical solution of this utility model, the reflux assembly includes a receiving frame, a sliding plate, a second motor, a mounting plate, a third motor, screws, a pulley assembly, a fixing plate, and a guide frame. The mounting plate is fixed to the lower right side of the base, and the L-shaped fixing plate is fixed to the upper right side of the crusher body. The two screws are rotatably connected between the mounting plate and the fixing plate. The pulley assembly is located between the lower ends of the two screws. The sliding plate is threadedly connected to the outside of the two screws. The second motor is embedded in the sliding plate with its output shaft facing forward. The receiving frame is fixed to the output shaft of the second motor, and its rear side is on the same vertical plane as the front side of the fixing plate. The third motor is embedded in the mounting plate with its output shaft facing upward and is fixedly connected to the lower end of the right screw. The guide frame is fixed to the right side of the base, and its upper end is designed as a triangular funnel. The lowest point of the triangular funnel is aligned with the feed inlet and fixedly connected thereto.

[0010] As a preferred technical solution of this utility model, four reinforcing angle irons are provided between the bottom end of the crusher body and the upper part of the base.

[0011] As a preferred technical solution of this utility model, the front end of the sieve plate extends beyond the base and faces the top of the inclined groove.

[0012] As a preferred technical solution of this utility model, the lower end of the guide rod is provided with a circular limiting block, the diameter of which is larger than the main body diameter of the guide rod, and is located below the fixing block.

[0013] Beneficial effects:

[0014] The design of the screening components effectively separates materials of different sizes, ensuring that small pieces are directly conveyed to the designated location, while large pieces automatically enter the secondary crushing process. This avoids the need for manual sorting, reduces labor intensity and time costs, improves overall crushing efficiency, and significantly reduces safety risks. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a partial sectional view of the base component of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the inclined groove, electric push rod, and baffle of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the receiving frame, the sliding plate, and the second motor component of this utility model.

[0019] The components are as follows: 1. Crusher body, 2. Feed inlet, 3. Base, 4. Screen plate, 5. Spring, 6. Fixing block, 7. Guide rod, 8. Inclined chute, 81. Electric push rod, 82. Baffle, 9. Conveyor belt, 91. Conveyor roller, 10. Support plate, 11. First motor, 12. Material receiving frame, 13. Slide plate, 14. Second motor, 15. Mounting plate, 16. Third motor, 17. Screw, 171. Pulley assembly, 18. Fixing plate, 19. Guide frame. Detailed Implementation

[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0021] Example: A feed chute for a jaw crusher, such as Figures 1-4As shown, the system includes a crusher body 1, a base 3, a screening assembly, an inclined chute 8, an electric push rod 81, a baffle 82, a conveying assembly, and a return assembly. The crusher body 1 is bolted to the top of the base 3. Four reinforcing angle irons are provided between the bottom of the crusher body 1 and the upper part of the base 3 to provide additional support and enhance the stability and load-bearing capacity of the crusher body 1. The feed inlet 2 is located on the upper part of the crusher body 1. The screening assembly for screening material size is located on the upper part of the base 3. The inclined chute 8 is welded to the front side of the base 3. Its slope extends from the left to the right, forming a guide slope that is higher on the left and lower on the right. The electric push rod 81 is bolted to the right side of the inclined chute 8. Its telescopic rod faces downward. The baffle 82 is welded to the telescopic rod of the electric push rod 81 and is located on the right side of the inclined chute 8, making sliding contact with it. The conveying assembly for conveying small pieces of material is located on the upper part of the base 3. The return assembly for circulating large pieces of material is located on the right side of the base 3.

[0022] like Figure 2 As shown, the screening assembly includes a screen plate 4, a spring 5, fixed blocks 6, and guide rods 7. The four fixed blocks 6 are distributed front to back and connected to the upper part of the base 3 by welding. Each guide rod 7 is slidably connected to each fixed block 6. The screen plate 4 is connected to the tops of the four guide rods 7 by welding, with the two front guide rods 7 positioned lower than the two rear guide rods 7, causing the screen plate 4 to be inclined. The inclination of the screen plate 4 extends downwards from the front to upwards from the rear, forming a slope that is lower in the front and higher in the back. A circular limiting block with a diameter greater than [missing information] is provided at the lower end of each guide rod 7. The guide rod 7 has a main body diameter and is located below the fixed block 6, effectively preventing the guide rod 7 from detaching from the fixed block 6. The screen plate 4 is made of high-strength metal, such as high manganese steel or alloy steel, which has excellent wear resistance and impact resistance, ensuring that the screen plate 4 will not be damaged or deformed when the material falls. The inclined groove 8 is located in front of the screen plate 4, and the front end of the screen plate 4 extends beyond the base 3 and faces the upper part of the inclined groove 8, ensuring that large pieces of material sliding off the screen plate 4 fall accurately into the interior of the inclined groove 8. Each spring 5 is sleeved on the outside of each guide rod 7, and its two ends are fixedly connected to the screen plate 4 and the corresponding fixed block 6, respectively.

[0023] like Figures 1-3As shown, the conveying assembly includes a conveyor belt 9, a conveyor roller 91, a support plate 10, and a first motor 11. The two support plates 10 are symmetrical and are connected to the rear side of the middle of the base 3 by welding. One conveyor roller 91 is rotatably connected between the two support plates 10, and the other conveyor roller 91 is rotatably connected to the front side of the middle of the base 3. The conveyor belt 9 is rotatably connected between the two conveyor rollers 91, and its left and right sides respectively contact the two support plates 10. The screen plate 4 is located directly above the conveyor belt 9, and the two have equal lateral lengths to ensure that small pieces of material passing through the screen plate 4 fall accurately onto the conveyor belt 9. The surface of the conveyor belt 9 is provided with a layer of silicone protective pad to prevent damage to the conveyor belt 9 when small pieces of material fall. The first motor 11 is connected to the right side of the right support plate 10 at a position slightly behind the right side by bolts. Its output shaft faces left and passes through the right support plate 10 to be fixedly connected to the right end of the rear conveyor roller 91.

[0024] like Figures 1-4 As shown, the reflux assembly includes a receiving frame 12, a sliding plate 13, a second motor 14, a mounting plate 15, a third motor 16, screws 17, a pulley assembly 171, a fixing plate 18, and a guide frame 19. The mounting plate 15 is welded to the lower right side of the base 3. The L-shaped fixing plate 18 is welded to the upper right side of the crusher body 1. The two screws 17 are rotatably connected between the mounting plate 15 and the fixing plate 18. The pulley assembly 171 is located between the lower ends of the two screws 17. The sliding plate 13 is threaded to the outside of the two screws 17. The second motor 14 is bolted to the sliding plate 13, with its output shaft facing forward. The receiving frame 12 is welded to the base 3. The first motor 14 is connected to the output shaft of the second motor 14. Its rear side is on the same vertical plane as the front side of the fixed plate 18 to prevent the fixed plate 18 from obstructing the rotation of the receiving frame 12. The lowest point of the right side of the inclined chute 8 is flush with the top of the receiving frame 12 to ensure that large pieces of material inside the inclined chute 8 fall accurately into the receiving frame 12. The third motor 16 is connected to the mounting plate 15 by bolts. Its output shaft faces upward and is fixedly connected to the lower end of the right screw 17 by a coupling. The guide frame 19 is connected to the right side of the base 3 by welding. Its upper end is designed as a triangular funnel. The lowest point of the triangular funnel is aligned with the feed inlet 2 and fixedly connected to it to ensure that large pieces of material are accurately guided into the crusher body 1 by the guide frame 19.

[0025] When materials need to be crushed, the operator first pours the material to be crushed into the crusher body 1 through the feed inlet 2. Then, the crusher body 1 and the first motor 11 are started. The crusher body 1 begins to crush the material. The crushed material is discharged through the crusher body 1 and falls onto the screen plate 4. The screen plate 4 moves downward due to the impact force of the material, and the spring 5 is compressed accordingly, which plays a buffering role, avoiding direct hard impact of the material on the screen plate 4 and reducing the risk of wear and damage to the screen plate 4. When the material falls onto the screen plate 4, small pieces of material continue to fall onto the conveyor belt 9 through the screen plate 4, while large pieces of material are intercepted by the screen plate 4 and slide down the inclined surface of the screen plate 4 into the inclined chute 8, where they are blocked by the baffle 82. At this time, the electric push rod 81 is activated to control its extension rod to extend. The baffle 82 moves downward to open the chute 8, no longer blocking large pieces of material in the chute 8. The large pieces of material slide down the slope of the chute 8 onto the receiving frame 12. When the receiving frame 12 catches a suitable amount of large pieces of material, it immediately controls the telescopic rod of the electric push rod 81 to retract, driving the baffle 82 to move upward to close the chute 8 and stop the discharge of large pieces of material. When small pieces of material fall onto the conveyor belt 9, the first motor 11 runs, and its output shaft drives the rear conveyor roller 91 to rotate clockwise. Working in coordination with the front conveyor roller 91, it pulls the conveyor belt 9 to rotate clockwise and transport small pieces of material backward. When a batch of material leaves the screen plate 4, the impact force disappears, and the spring 5 returns to its original state, releasing the stored elastic potential energy and pushing the screen plate 4 to move upward to reset, ready to receive the impact of the next batch of material.

[0026] Then, the third motor 16 is started, and its output shaft drives the right screw 17 to rotate clockwise. The right screw 17, through the pulley assembly 171, drives the left screw 17 to rotate clockwise synchronously, thereby driving the slide plate 13 to drive the second motor 14 and the receiving frame 12 to rise. When the receiving frame 12 rises to the top of the screw 17, the output shaft of the first motor 11 is temporarily stopped from rotating, and the second motor 14 is started, controlling its output shaft to drive the receiving frame 12 to rotate counterclockwise by 10 degrees, tilting it to the top of the triangular funnel of the guide frame 19. When the receiving frame 12 is tilted, the large pieces of material caught on it slide into the triangular funnel of the guide frame 19 and are then guided by the guide. The triangular funnel of frame 19 guides the material into the crusher body 1 for the next round of crushing. Then, the output shaft of the second motor 14 is controlled to rotate the receiving frame 12 clockwise by 10 degrees to a horizontal position. The third motor 16 is restarted, and its output shaft is controlled to rotate counterclockwise, which drives the right screw 17 to rotate counterclockwise. The right screw 17 drives the left screw 17 to rotate counterclockwise synchronously through the pulley assembly 171. This drives the slide plate 13 to lower the second motor 14 and the receiving frame 12. When the receiving frame 12 descends to the bottom of the screw 17, the output shaft of the first motor 11 is controlled to stop rotating again. Finally, the above steps are repeated to continue the return operation of large pieces of material.

[0027] It is worth noting that all electrical components can be integrated into a centralized control box, which facilitates management and maintenance.

[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A feeding chute for a jaw crusher, characterized in that, The system includes a crusher body (1), a base (3), a screening component, an inclined chute (8), an electric push rod (81), a baffle (82), a conveying component, and a return component. The crusher body (1) is installed on the top of the base (3). The feed inlet (2) is opened on the upper part of the crusher body (1). The screening component for screening material size is set on the upper part of the base (3). The inclined chute (8) is fixed to the front side of the base (3). Its inclination extends from the left to the right and downwards, forming a guide slope that is higher on the left and lower on the right. The electric push rod (81) is installed on the right side of the inclined chute (8). Its telescopic rod faces downwards. The baffle (82) is fixed to the telescopic rod of the electric push rod (81) and is located on the right side of the inclined chute (8) and slides in contact with it. The conveying component for conveying small pieces of material is set on the upper part of the base (3). The return component for circulating large pieces of material is set on the right side of the base (3).

2. The feeding chute for a jaw crusher according to claim 1, characterized in that, The screening assembly includes a screen plate (4), springs (5), fixing blocks (6) and guide rods (7). The four fixing blocks (6) are distributed front and back and fixed to the upper part of the base (3). Each guide rod (7) is slidably connected to each fixing block (6). The screen plate (4) is fixed between the tops of the four guide rods (7), and the two guide rods (7) on the front side are lower than the two guide rods (7) on the back side, so that the screen plate (4) is in an inclined state. The inclination of the screen plate (4) extends from the front down to the rear up, forming an inclined surface that is lower in the front and higher in the back. The screen plate (4) is made of high-strength metal. The inclined groove (8) is located in front of the screen plate (4). Each spring (5) is sleeved on the outside of each guide rod (7), and its two ends are fixedly connected to the screen plate (4) and the corresponding fixing block (6) respectively.

3. A feeding chute for a jaw crusher according to claim 2, characterized in that, The conveying assembly includes a conveyor belt (9), a conveyor roller (91), a support plate (10), and a first motor (11). The two support plates (10) are symmetrical and fixed to the rear side of the middle of the base (3). One conveyor roller (91) is rotatably connected between the two support plates (10), and the other conveyor roller (91) is rotatably connected to the front side of the middle of the base (3). The conveyor belt (9) is rotatably connected between the two conveyor rollers (91) and its left and right sides respectively contact the two support plates (10). The screen plate (4) is located directly above the conveyor belt (9), and the two have equal lateral lengths. A protective pad is provided on the surface of the conveyor belt (9). The first motor (11) is installed at the rear right side of the right support plate (10), with its output shaft facing left and passing through the right support plate (10) to be fixedly connected to the right end of the rear conveyor roller (91).

4. A feeding chute for a jaw crusher according to claim 3, characterized in that, The return assembly includes a receiving frame (12), a sliding plate (13), a second motor (14), a mounting plate (15), a third motor (16), screws (17), a pulley assembly (171), a fixing plate (18), and a guide frame (19). The mounting plate (15) is fixed to the lower right side of the base (3), and the L-shaped fixing plate (18) is fixed to the upper right side of the crusher body (1). The two screws (17) are rotatably connected between the mounting plate (15) and the fixing plate (18). The pulley assembly (171) is located between the lower ends of the two screws (17). The sliding plate (13) screws... The threaded connection is between the two screws (17) and the outside. The second motor (14) is embedded in the slide plate (13) with its output shaft facing forward. The receiving frame (12) is fixed to the output shaft of the second motor (14). Its rear side is on the same vertical plane as the front side of the fixing plate (18). The third motor (16) is embedded in the mounting plate (15) with its output shaft facing upward and fixedly connected to the lower end of the right screw (17). The guide frame (19) is fixed to the right side of the base (3). Its upper end is designed as a triangular funnel. The lowest point of the triangular funnel is aligned with the feed port (2) and fixedly connected to it.

5. A feeding chute for a jaw crusher according to claim 4, characterized in that, Four reinforcing angle irons are provided between the bottom of the crusher body (1) and the upper part of the base (3).

6. A feeding chute for a jaw crusher according to claim 5, characterized in that, The front end of the sieve plate (4) extends beyond the base (3) and faces the top of the inclined groove (8).

7. A feeding chute for a jaw crusher according to claim 6, characterized in that, The guide rod (7) has a circular limiting block at its lower end. The diameter of the limiting block is larger than the main body diameter of the guide rod (7) and it is located below the fixing block (6).

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