An impact crusher with various discharge particle sizes

Abstract

The present application relates to an impact crusher with a variety of discharge particle sizes, which includes an outer shell and a lower impact frame. The bottom of the outer shell is open, and a strap, a screen, and a positioning assembly are arranged in the outer shell. A discharge port is opened on the vertical side wall of the outer shell facing the lower impact frame, the strap is fixedly connected to the inner wall of the outer shell facing the discharge port, the positioning assembly and the discharge port are located on the same side wall of the outer shell and below the discharge port, and the vertical height of the positioning assembly is lower than the vertical height of the strap; the screen includes a main net and an auxiliary net, one end of the main net abuts against the top of the strap, and the other end is hinged to one end of the auxiliary net, the hinge axis is horizontally arranged, and the angle formed by the main net and the auxiliary net in the state of not fully unfolding opens upward, the positioning assembly is used to limit the auxiliary net away from the main net on the outer shell, and a limiting assembly is arranged between the main net and the auxiliary net, and the limiting assembly is used to keep the main net and the auxiliary net in an unfolded state. The present application has the effect of making the size of stones flowing out of the crusher meet the utilization standards of subsequent processes.

Description

Technical Field

[0001] The present application relates to the technical field of mining machinery and equipment, and in particular to an impact crusher with diverse discharge particle sizes. Background Art

[0002] At present, blasting is carried out in mines. The stones mined by blasting are of different sizes, and a large part of the stones cannot be used directly. The large stones need to be crushed to get smaller stones. Among them, the impact crusher is a commonly used stone crushing machine in mines.

[0003] The principle of the impact crusher is to use impact energy to crush stones. The stones are input into the body of the crusher, and the rotor is driven by the motor to rotate. The stones collide with the hammers on the rotor and are broken. An impact frame is set outside the rotor. The stones hit the hammers and rebound to the impact frame to form secondary crushing. The crushed stones flow out from the bottom of the crusher.

[0004] There are many factors that control the size of the discharged stones, including adjusting the gap between the impact frame and the hammer, replacing the severely worn hammer, adjusting the speed of the rotor or changing the side of the hammer when it is severely worn, so as to ensure that the size of the stones flowing out of the bottom of the crusher meets the requirements of subsequent processes.

[0005] In the actual mining and crushing process, the inventor found that the wear of the hammer is a continuous process. Although other factors affecting the size of the stone have been controlled as much as possible, there is still a defect that the size of the crushed stone does not meet the standards for subsequent engineering utilization. Summary of the invention

[0006] In order to make the size of stones flowing out of the crusher meet the utilization standards of subsequent processes, the present application provides an impact crusher with diverse output particle sizes.

[0007] The present application provides an impact crusher with various discharge particle sizes, which adopts the following technical solutions:

[0008] A impact crusher with diverse discharge particle sizes comprises an outer shell, a lower impact frame is rotatably arranged in the outer shell, the bottom of the outer shell is open, a strap, a screen and a positioning assembly are arranged in the outer shell, a discharge port is opened on the vertical side wall of the outer shell facing the lower impact frame, the strap is fixedly connected to the inner wall of the outer shell facing the discharge port, the positioning assembly and the discharge port are located on the same side wall of the outer shell and below the discharge port, and the vertical height of the positioning assembly is lower than the vertical height of the strap; the screen comprises a main net and an auxiliary net, one end of the main net abuts against the top of the strap, and the other end is hinged to one end of the auxiliary net, the hinge axis is horizontally arranged, and the angle formed by the main net and the auxiliary net in the state of not fully unfolding opens upward, the positioning assembly is used to limit the auxiliary net away from the main net on the outer shell, a limiting assembly is arranged between the main net and the auxiliary net, and the limiting assembly is used to keep the main net and the auxiliary net in an unfolded state.

[0009] By adopting the above technical scheme, the arrangement of the straps and the positioning components enables the unfolded screen to be limited inside the inner shell, and the screen is tilted in the direction close to the discharge port, so that the crushed stones are screened on the screen, qualified ones pass through the screen and fall down, and unqualified ones roll out from the discharge port and are thrown back into the outer shell for crushing. The screen is set in a folded state, which is convenient for workers to install the screen in the outer shell from the bottom of the shell, and due to the presence of the rotor and the lower impact frame, the installation space left for the screen is not sufficient, so the folded state of the screen is a state with an angle opening facing upward, which avoids the auxiliary net and the main net from fighting with the rotor at the hinge axis, and provides convenience for the installation of the screen.

[0010] Optionally, the limiting assembly includes a limiting bolt, a first limiting plate and a second limiting plate, one end of the first limiting plate is fixedly connected to the auxiliary network and is arranged along the direction close to the main network, the limiting bolt passes through the first limiting plate and is fixedly connected to the second limiting plate, and the limiting bolt is threadedly connected to the first limiting plate; when the main network and the auxiliary network are in the unfolded state, the first limiting plate spans the hinge between the main network and the auxiliary network, the first limiting plate abuts against the main network, and the second limiting plate passes through the main network and abuts against the side of the main network close to the lower impact frame.

[0011] By adopting the above technical solution, when the auxiliary net and the main net are unfolded and are in the same plane, the second limiting plate passes through the mesh of the main net itself, and then the limiting bolt is rotated so that the second limiting plate and the first limiting plate clamp the main net near the limiting bolt, thereby completing the limitation of the main net position and the auxiliary net position, and the operation is convenient.

[0012] Optionally, the positioning assembly includes a first clamping plate, a second clamping plate and a positioning bolt, one end of the first clamping plate is hinged to the inner wall of the outer shell, the hinge axis is horizontally arranged, one end of the second clamping plate is fixedly connected to the inner wall of the outer shell, the end of the first clamping plate and the end of the second clamping plate away from the outer shell are close to each other and have a distance, the positioning bolt passes through the second clamping plate and is threadedly connected to the first clamping plate, and the edge of the auxiliary net close to the first clamping plate is located between the first clamping plate and the second clamping plate.

[0013] By adopting the above technical solution, the first clamping plate and the second clamping plate form a space for placing the edge of the auxiliary net. The positioning bolt not only limits the position of the first clamping plate and the second clamping plate, but also limits the spatial range of the auxiliary net edge sliding between the first clamping plate and the second clamping plate.

[0014] Optionally, the distance between the ends of the first clamping plate and the second clamping plate that are close to each other is greater than the thickness of the secondary net.

[0015] By adopting the above technical solution, space is reserved for the jumping of the auxiliary net, so that the auxiliary net and the main net receive the gravel falling from above. The impact force brought by the gravel will cause the auxiliary net and the main net to vibrate, and the reserved space continues the vibration of the auxiliary net and the main net, thereby making it easier to screen the gravel.

[0016] Optionally, the end of the strap is fixedly connected to the inner wall of the shell, and there is a distance between the middle of the strap and the inner wall of the shell; a convex strip is fixed to the edge of the main net away from the auxiliary net, and the convex strip is inserted between the strap and the shell.

[0017] Optionally, a connecting assembly is provided between the lower impact frame and the main net, and the connecting assembly is used to transmit the vibration on the lower impact frame to the main net; the positioning bolt passes through the second clamping plate and there is a distance between it and the edge of the auxiliary net after limiting; along the direction close to the auxiliary net, after the main net is limited, there is a distance between the convex strip and the outer shell and the strapping board.

[0018] By adopting the above technical solution, the connecting assembly transmits the vibration on the lower impact frame to the main net. This vibration is not only limited to the vertical direction, but also generates vibration in the horizontal direction, thereby causing the auxiliary net and the main net to shake in the vertical direction and also in the horizontal direction.

[0019] Optionally, the connecting assembly includes a telescopic rod and a lock, two locks are provided and distributed at the end of the telescopic rod, a ring is fixed on the lower impact frame, the lock close to the ring is fixed to the ring, and the lock close to the main net is fixed to the main net.

[0020] By adopting the above technical solution, the telescopic rod can adjust the effective length of the entire connecting assembly to adapt to the distance between the main net and the lower impact frame.

[0021] Optionally, the shell is provided with a positioning tube, a screw, a nut, a spring and a limit rod, the positioning tube is fixed on the outer wall of the shell, the screw passes through the positioning tube and the shell and is hinged to the lower impact frame, the spring is located in a ring sleeve outside the screw and is located in the positioning tube, one end of the spring is fixedly connected to the shell, and the other end is rotatably connected to the nut, the nut ring is on the outer wall of the screw, the nut is threadedly connected to the screw, the outer diameter of the nut is larger than the inner diameter of the positioning tube, one end of the limit rod is hinged to the outer wall of the positioning tube, and the other end is located on the side of the nut away from the positioning tube and there is a distance between the nut and the nut.

[0022] By adopting the above technical solution, when the lower impact frame needs to be adjusted, the nut is rotated to adjust the position of the screw rod relative to the nut; after the lower impact frame is impacted by stones, it shakes, and the limit rod limits the nut, and cooperates with the spring to realize the vibration of the lower impact frame, thereby effectively utilizing the impact on the lower impact frame and improving the screening efficiency of the screen for stones.

[0023] Optionally, a rubber pad is fixed on the top of the butt plate.

[0024] By adopting the above technical solution, the rubber pad protects the tack board and the main net, reducing the collision and wear between the two.

[0025] Optionally, a rubber block is fixed on the limiting rod, and the rubber block is opposite to the side wall of the nut facing away from the spring.

[0026] By adopting the above technical solution, the lower impact frame drives the nut to shake through the screw rod, and the rubber block has the effect of reducing noise.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The selection of the screen ensures that the collected stones are all of qualified size, and the unqualified ones are screened out and crushed on the spot. The foldable screen itself makes it easy for workers to install the screen inside the shell from the bottom of the crusher;

[0029] 2. The placement of the screen relative to the slats and the positioning components enables the screen to fully withstand the vibration caused by the falling stones above, and at the same time, the effect of the vibration is brought into play to accelerate the screening of stones on the screen;

[0030] 3. The connecting assembly further transmits the vibration on the lower impact frame to the screen, which accelerates the vibration of the screen and further improves the efficiency of the screen in screening stones. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0032] Figure 2 It is a cross-sectional view of the internal structure of the shell;

[0033] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0034] Figure 4 yes Figure 2 Enlarged view of part B.

[0035] In the figure, 1. shell; 11. lower impact frame; 12. bridging plate; 13. discharge port; 14. positioning tube; 15. screw; 16. nut; 17. spring; 18. limit rod; 2. screen; 21. main screen; 22. auxiliary screen; 3. limit assembly; 31. limit bolt; 32. first limit plate; 33. second limit plate; 4. positioning assembly; 41. first clamping plate; 42. second clamping plate; 43. positioning bolt; 5. convex strip; 6. connecting assembly; 61. telescopic rod; 62. locking buckle; 7. ring; 8. rubber pad; 9. rubber block. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] The embodiment of the present application discloses an impact crusher with diverse discharge particle sizes.

[0038] refer to Figure 1 and Figure 2 An impact crusher with diverse discharge particle sizes includes a shell 1, a lower impact frame 11 and a screen 2 are arranged in the shell 1, the lower impact frame 11 is rotatably connected to the inner wall of the shell 1, the bottom of the shell 1 is open, the screen 2 is located below the lower impact frame 11 and is detachably connected to the inner wall of the shell 1, a discharge port 13 is opened on the vertical side wall of the shell 1, the screen 2 is inclined, and the inclination direction is inclined downward along the direction close to the discharge port 13, the screen 2 screens the stones, and the stones that do not meet the screening particle size slide out from the discharge port 13 and are crushed again.

[0039] refer to Figure 2 and Figure 3 The housing 1 is provided with a positioning tube 14, a screw 15, and a spring 17. The positioning tube 14 is fixed on the outer wall of the housing 1 away from the discharge port 13. A nut 16 is sleeved on the screw 15. The nut 16 is threadedly connected to the screw 15. The screw 15 passes through the positioning tube 14 and is hinged to the lower impact frame 11. The outer diameter of the nut 16 is larger than the inner diameter of the positioning tube 14. The spring 17 is sleeved outside the screw 15 and is located inside the positioning tube 14. One end of the spring 17 is fixedly connected to the outer wall of the housing 1, and the other end is rotatably connected to the nut 16. The nut 16 may be provided with a bearing to achieve the rotatable connection between the spring 17 and the nut 16. A limit rod 18 is hinged on the outer wall of the positioning tube 14. The limit rod 18 is C-shaped. The end of the limit rod 18 away from the positioning tube 14 is located on the side of the nut 16 away from the positioning tube 14, and a rubber block 9 is fixed thereon. There is a distance between the rubber block 9 and the nut 16.

[0040] refer to Figure 2 and Figure 4 The screen 2 includes a main screen 21 and an auxiliary screen 22, the main screen 21 and the auxiliary screen 22 are hinged, and the angle formed by the main screen 21 and the auxiliary screen 22 is opened upward. A limit assembly 3 is arranged between the main screen 21 and the auxiliary screen 22. The limit assembly 3 includes a limit bolt 31, a first limit plate 32 and a second limit plate 33, the first limit plate 32 and the second limit plate 33 are both in the shape of long strips, one end of the first limit plate 32 is fixedly connected to the auxiliary screen 22 near the main screen 21, and is located on the side wall of the auxiliary screen 22 away from the lower impact frame 11, the first limit plate 32 spans the hinge axis of the main screen 21 and the auxiliary screen 22, and the limit bolt 31 passes through the first limit plate 32 and is fixedly connected to the second limit plate 33. When the main net 21 and the auxiliary net 22 are fully unfolded and in the same plane, the second limiting plate 33 passes through the mesh of the main net 21 itself, and then the limiting bolt 31 is rotated, so that the second limiting plate 33 cooperates with the first limiting plate 32 to lock the main net 21.

[0041] refer to Figure 2A strap 12 is fixed on the inner wall of the shell 1. The strap 12 is C-shaped. The end of the strap 12 is fixedly connected to the inner wall of the shell 1. A distance is left between the middle of the strap 12 and the inner wall of the shell 1. A rubber pad 8 is fixed on the top of the strap 12.

[0042] refer to Figure 2 A convex strip 5 is fixed to the edge of the main net 21 away from the auxiliary net 22 , and the convex strip 5 is inserted into the strap 12 . There is a distance between the convex strip 5 and the inner wall of the shell 1 and the middle of the strap 12 .

[0043] refer to Figure 2 A positioning assembly 4 is provided on the inner wall of the shell 1, and the positioning assembly 4 is located directly below the discharge port 13 and is arranged close to the discharge port 13. The positioning assembly 4 includes a first clamping plate 41, a second clamping plate 42 and a positioning bolt 43. The first clamping plate 41 is located directly above the second clamping plate 42, one end of the first clamping plate 41 is hinged to the inner wall of the shell 1, and the hinge axis is arranged horizontally, and one end of the second clamping plate 42 is fixedly connected to the inner wall of the shell 1, and the end of the first clamping plate 41 and the end of the second clamping plate 42 away from the shell 1 are close to each other and leave a distance. In this embodiment, the first clamping plate 41 and the second clamping plate 42 adopt L-shaped plates; the positioning bolt 43 penetrates the second clamping plate 42 and is threadedly connected to the first clamping plate 41, and the edge of the auxiliary net 22 close to the first clamping plate 41 is located between the first clamping plate 41 and the second clamping plate 42 and cannot be separated from the limit of the first clamping plate 41 and the second clamping plate 42, and the edge of the auxiliary net 22 close to the first clamping plate 41 slides between the end of the first clamping plate 41 close to the auxiliary net 22 and the positioning bolt 43.

[0044] refer to Figure 2 A connecting assembly 6 is provided between the lower impact frame 11 and the main net 21. The connecting assembly 6 includes a telescopic rod 61 and a lock 62, wherein two locks 62 are provided, namely, a lock 62 is fixed at one end of the telescopic rod 61, and a ring 7 is fixed on the lower impact frame 11, wherein one lock 62 is fixedly connected to the ring 7, and the other lock 62 is fixedly connected to the area of ​​the main net 21 close to it, thereby achieving the effect that the vibration of the lower impact frame 11 drives the vibration of the main net 21. When the angle of the lower impact frame 11 is adjusted, the length of the telescopic rod 61 is adjusted to make the connecting assembly 6 adapt to the distance between the lower impact frame 11 and the main net 21. The telescopic rod 61 can be made of a steel pipe inserted into another steel pipe, and a screw is fixed on the outer wall of the steel pipe located outside, and the screw passes through the outer steel pipe and abuts against the outer wall of the inner steel pipe or is threaded.

[0045] The implementation principle of an impact crusher with a variety of discharge particle sizes in an embodiment of the present application is as follows: when the main net 21 and the auxiliary net 22 are in the stored state, the angle opening formed is placed upward from the bottom of the outer shell 1 in the outer shell 1, and then the main net 21 and the auxiliary net 22 are unfolded, the convex strip 5 is placed on the pad, and the edge of the auxiliary net 22 close to the first clamping plate 41 is placed between the first clamping plate 41 and the second clamping plate 42, and then the positioning bolt 43 is rotated to limit the edge of the auxiliary net 22, and the main net 21 and the auxiliary net 22 are kept in a stable unfolded state through the limiting component 3, the lock buckle 62 close to the main net 21 is fixed to the main net 21, and the discharge port 13 is opened to start crushing the stones.

[0046] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An impact crusher with a variety of discharge particle sizes, comprising a housing (1), a lower impact frame (11) rotatably disposed inside the housing (1), the bottom of the housing (1) being open, and characterized in that: The shell (1) is provided with a strap (12), a screen (2), and a positioning assembly (4); a discharge port (13) is provided on a vertical side wall of the shell (1) facing the lower impact frame (11); the strap (12) is fixedly connected to the inner wall of the shell (1) facing the discharge port (13); the positioning assembly (4) and the discharge port (13) are located on the same side wall of the shell (1) and below the discharge port (13); the vertical height of the positioning assembly (4) is lower than the vertical height of the strap (12); the screen (2) comprises a main net (21) and a secondary net (22); one end of the main net (21) is abutted against the top of the strap (12), and the other end is hinged to one end of the secondary net (22); the hinge axis is arranged horizontally, and the main net (21) and the secondary net (22) are arranged on the same side wall of the shell (1) and below the discharge port (13); the vertical height of the positioning assembly (4) is lower than the vertical height of the strap (12); the screen (2) comprises a main net (21) and a secondary net (22); one end of the main net (21) is abutted against the top of the strap (12), and the other end is hinged to one end of the secondary net (22); the hinge axis is arranged horizontally, and the main net (21) and the secondary net (22) are arranged horizontally. The angle formed when the auxiliary net (22) is not fully unfolded opens upwards, the positioning component (4) is used to limit the auxiliary net (22) away from the main net (21) on the outer shell (1), and a limiting component (3) is arranged between the main net (21) and the auxiliary net (22), and the limiting component (3) is used to keep the main net (21) and the auxiliary net (22) in the unfolded state; the positioning component (4) comprises a first clamping plate (41), a second clamping plate (42) and a positioning bolt (43), one end of the first clamping plate (41) is hinged to the inner wall of the outer shell (1), and the hinge axis is arranged horizontally, and one end of the second clamping plate (42) is fixedly connected to the inner wall of the outer shell (1), and the end of the first clamping plate (41) and the end of the second clamping plate (42) away from the outer shell (1) are close to each other and A distance is left, and the positioning bolt (43) passes through the second clamping plate (42) and is then threadedly connected to the first clamping plate (41); the edge of the auxiliary net (22) close to the first clamping plate (41) is located between the first clamping plate (41) and the second clamping plate (42); the distance between the ends of the first clamping plate (41) and the second clamping plate (42) close to each other is greater than the thickness of the auxiliary net (22); the end of the strap (12) is fixedly connected to the inner wall of the outer shell (1), and there is a distance between the middle of the strap (12) and the inner wall of the outer shell (1); a convex strip (5) is fixed to the edge of the main net (21) away from the auxiliary net (22), and the convex strip (5) is inserted between the strap (12) and the outer shell (1); between the lower impact frame (11) and the main net (21) A connecting assembly (6) is provided, and the connecting assembly (6) is used to transmit the vibration on the lower impact frame (11) to the main net (21); the positioning bolt (43) passes through the second clamping plate (42) and there is a distance between the edge of the auxiliary net (22) after the position is limited; along the direction close to the auxiliary net (22), after the main net (21) is limited, there is a distance between the convex strip (5) and the outer shell (1) and the strap (12); the connecting assembly (6) includes a telescopic rod (61) and a lock buckle (62), two lock buckles (62) are provided and distributed at the end of the telescopic rod (61), a ring is fixed on the lower impact frame (11), the lock buckle (62) close to the ring is fixed to the ring, and the lock buckle (62) close to the main net (21) is fixed to the main net (21).

2. The impact crusher with various discharge particle sizes according to claim 1, characterized in that: The limiting assembly (3) comprises a limiting bolt (31), a first limiting plate (32) and a second limiting plate (33); one end of the first limiting plate (32) is fixedly connected to the auxiliary net (22) and is arranged in a direction close to the main net (21); the limiting bolt (31) passes through the first limiting plate (32) and is fixedly connected to the second limiting plate (33); the limiting bolt (31) is threadedly connected to the first limiting plate (32); when the main net (21) and the auxiliary net (22) are in an unfolded state, the first limiting plate (32) spans the hinge of the main net (21) and the auxiliary net (22); the first limiting plate (32) abuts against the main net (21); the second limiting plate (33) passes through the main net (21) and abuts against a side of the main net (21) close to the lower impact frame (11).

3. The impact crusher with various discharge particle sizes according to claim 1, characterized in that: The shell (1) is provided with a positioning tube (14), a screw (15), a nut (16), a spring (17) and a limiting rod (18); the positioning tube (14) is fixed on the outer wall of the shell (1); the screw (15) passes through the positioning tube (14) and the shell (1) and is hinged to the lower impact frame (11); the spring (17) is located outside the screw (15) and inside the positioning tube (14); one end of the spring (17) is fixedly connected to the shell (1) and the other end is rotatably connected to the nut (16); the nut (16) is sleeved on the outer wall of the screw (15); the nut (16) is threadedly connected to the screw (15); the outer diameter of the nut (16) is larger than the inner diameter of the positioning tube (14); one end of the limiting rod (18) is hinged to the outer wall of the positioning tube (14) and the other end is located on the side of the nut (16) away from the positioning tube (14) and there is a distance between the nut (16) and the nut (16).

4. The impact crusher with various discharge particle sizes according to claim 1, characterized in that: A rubber pad (8) is fixed on the top of the butt plate (12).

5. The impact crusher with various discharge particle sizes according to claim 3, characterized in that: A rubber block (9) is fixed on the limiting rod (18), and the rubber block (9) is directly opposite to the side wall of the nut (16) facing away from the spring (17).

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