Pulverizer

Abstract

The utility model discloses a crusher, which belongs to the technical field of crushers and is mainly used for crushing materials. The technical problem to be solved by the utility model is to provide a crusher which comprises a crushing chamber, a crushing assembly and a driving assembly, the crushing chamber comprises an upper shell and a lower shell, one ends of the upper shell and the lower shell are hinged, and the other ends of the upper shell and the lower shell are connected through a fastening assembly; a pressure-bearing face is arranged at the upper end of the lower shell, a lower pressing face is arranged at the lower end of the upper shell, a screen is arranged in the lower shell and comprises an arc-shaped screen piece with the same inner diameter as the lower shell, horizontal installation edges extending outwards along the diameter of the screen piece are arranged at the two ends of the screen piece, arc-shaped installation edges extending downwards along the arc face of the screen piece are arranged on the two sides of the screen piece, and the horizontal installation edges are connected to the pressure-bearing face in a clamped mode. And when the lower pressing surface is connected with the pressure-bearing surface, the upper shell clamps the horizontal mounting edge between the upper shell and the lower shell. According to the device, the screen is clamped and mounted by closing the upper shell and the lower shell, the mounting steps are simple, the mounting speed is high, the anti-seismic property of the screen is improved, and the screen is prevented from slipping in the using process.

Description

Technical Field

[0001] This utility model relates to the field of pulverizer technology, and in particular to a pulverizer. Background Technology

[0002] Crushers are commonly used for crushing materials. They include a frame, crushing chamber, feeding assembly, discharging assembly, crushing component, and drive assembly. The crushing chamber contains a crushing cavity. The feeding assembly is located at the top of the crushing chamber and communicates with it. The discharging assembly is located at the bottom of the crushing chamber and communicates with it. The crushing component is located inside the crushing chamber and is connected to the drive assembly for transmission. To ensure that the material is crushed to a specified state before being discharged from the crushing chamber, a screen is installed inside the crushing chamber. Particles that meet the screen aperture are discharged from the discharge port, while particles that do not meet the standard continue to circulate and be crushed in the chamber. However, current screens are mainly detachable and connected by bolts, slots, etc., for easy replacement and maintenance. However, this type of detachable connection method has drawbacks. For example, when using bolts to install the screen, an installation cylinder needs to be reserved at the edge of the screen before it is fixed to the inside of the crushing chamber or to the screen support located inside the crushing chamber with bolts. This setup leaves a horizontal platform inside the crushing chamber, and the crushed material may remain on this platform. Over time, this accumulation may cause corrosion between the bolts and the screen. Using slots to install the screen involves setting an arc-shaped slot inside the crushing chamber and embedding the screen into it. However, since the crushing components often use hammer blades to crush materials, the vibration is large, which may cause the screen to slip out of the slot. Furthermore, due to the narrow interior of the crushing chamber, the operator needs to make multiple adjustments to reach all the fixing points to install the screen in the slot, making quick installation impossible. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a crusher, mainly used for crushing materials, so as to achieve the purpose of quick installation and screen replacement.

[0004] This utility model discloses a pulverizer, including a pulverizing chamber, a pulverizing component, and a driving component. The pulverizing chamber includes an upper shell and a lower shell for enclosing and forming the pulverizing cavity. One end of the upper shell is hinged to one end of the lower shell, and the other end of the lower shell is provided with a fastening component that is detachably connected to the upper shell. The pulverizing component is disposed in the pulverizing cavity and is drivenly connected to the driving component disposed outside the pulverizing cavity. The upper end of the lower shell is provided with a pressure-bearing surface, and the lower end of the upper shell is provided with a downward pressure surface that contacts the pressure-bearing surface. The lower shell is also provided with a screen located below the pulverizing component. The screen includes an arc-shaped screen plate with the same inner diameter as the lower shell. Both ends of the screen plate are provided with horizontal mounting edges extending outward along their diameter. The horizontal mounting edges are engaged with the pressure-bearing surface, and when the downward pressure surface is in contact with the pressure-bearing surface, the upper shell clamps the horizontal mounting edges between the upper shell and the lower shell.

[0005] Furthermore, the screen plate is provided with arc-shaped mounting edges extending downward along its arc surface on both sides, and the two ends of the arc-shaped mounting edges are respectively connected to the horizontal mounting edges provided at both ends of the screen plate.

[0006] Furthermore, the width of the horizontal mounting edge is the same as the thickness of the lower housing, and the arc-shaped mounting edge abuts against the inner wall of the crushing chamber.

[0007] Furthermore, an inclined surface is provided above the lower pressure surface, one end of which is connected to the inner side of the upper shell, and the other end is connected to the side of the lower pressure surface away from the upper shell.

[0008] Furthermore, a reinforcing plate is provided inside the upper housing, and the reinforcing plate is fitted to the inner wall of the upper housing along the bending direction of the upper housing.

[0009] Furthermore, the fastening assembly includes a mounting base disposed on the lower housing, a pin hinged to the mounting base, a fixing plate disposed on the upper housing and located on the same vertical plane as the mounting base, a threaded section provided at one end of the pin passing through the fixing plate, and a locking nut for locking the upper housing and the lower housing on the threaded section.

[0010] The beneficial effects of this utility model are: the horizontal mounting edge of the screen is set on the pressure-bearing surface of the lower shell, and the screen is clamped and installed by closing the upper shell and the lower shell. The installation steps are simple and the installation speed is fast. There is no need to set bolts for connection, which ensures smooth material flow, reduces the amount of material residue in the crushing chamber, and by setting the arc-shaped mounting edge, the connection between the screen and the lower shell can be ensured to be tight, improving the performance of the screen and preventing the screen from slipping off the pressure-bearing surface and the lower pressure surface. Attached Figure Description

[0011] Figure 1 Schematic diagram of the pulverizer;

[0012] Figure 2 Schematic diagram of the grinding chamber;

[0013] Figure 3 : A schematic diagram of the upper and lower shells when opened;

[0014] Figure 4 Schematic diagram of the sieve structure;

[0015] Reference numerals: 1-Frame; 2-Grinding chamber; 21-Upper shell; 211-Lower pressure surface; 212-Inclined surface; 213-Reinforcing plate; 214-Feed inlet; 215-Bolt; 22-Lower shell; 221-Pressure bearing surface; 222-Discharge outlet; 23-Grinding chamber; 3-Screw; 31-Screw plate; 32-Horizontal mounting edge; 33-Arc-shaped mounting edge; 34-Screw hole; 4-Fastening assembly; 41-Mounting base; 42-Pin; 43-Locking nut; 44-Fixing plate; 5-Grinding assembly; 6-Drive assembly; 61-Belt; 7-Feed hopper; 8-Discharge hopper. Detailed Implementation

[0016] The present invention will be further described below.

[0017] This utility model provides a crusher, mainly used for crushing materials. The crusher includes a crushing chamber 2, a crushing component 5, and a driving component 6. The crushing chamber 2 includes an upper shell 21 and a lower shell 22 for enclosing and forming a crushing cavity 23. One end of the upper shell 21 is hinged to one end of the lower shell 22, and the other end of the lower shell 22 is provided with a fastening component 4 that is detachably connected to the upper shell 21. The crushing component 5 is disposed inside the crushing cavity 23 and is drivenly connected to the driving component 6 disposed outside the crushing chamber 2. The upper end of the lower shell 22 is provided with a pressure-bearing surface. 221. The lower end of the upper housing 21 is provided with a lower pressure surface 211 that is in contact with the pressure bearing surface 221. The lower housing 22 is also provided with a screen 3 located below the crushing component 5. The screen 3 includes an arc-shaped screen plate 31 with the same inner diameter as the lower housing 22. Both ends of the screen plate 31 are provided with horizontal mounting edges 32 extending outward along its diameter. The horizontal mounting edges 32 are engaged with the pressure bearing surface 221. When the lower pressure surface 211 is in contact with the pressure bearing surface 221, the upper housing 21 clamps the horizontal mounting edges 32 between the upper housing 21 and the lower housing 22. Both sides of the screen plate 31 are also provided with arc-shaped mounting edges 33 extending downward along its arc surface. The two ends of the arc-shaped mounting edges 33 are respectively connected to the horizontal mounting edges 32 provided at both ends of the screen plate 31.

[0018] like Figure 1-3As shown, the crusher includes a crushing chamber 2, a crushing assembly 5, and a drive assembly 6. The crushing chamber 2 is mounted on a frame 1, and the drive assembly 6 is located below the crushing chamber 2. The crushing chamber 2 includes an upper shell 21 and a lower shell 22 that enclose a crushing cavity 23. The top of the upper shell 21 has a feed inlet 214 for material input, which is detachably connected to a feed hopper 7. The bottom of the lower shell 22 has a discharge outlet 222 for material output, which is connected to a discharge hopper 8. One end of the upper shell 21 is hinged to one end of the lower shell 22. The other end of the lower shell 22 has a fastening assembly 4 that is detachably connected to the upper shell 21. By hinged at one end of the upper shell 21 and detachably connected at the other end via the fastening assembly 4, the upper shell 21 and the lower shell 22 can be opened for easy observation of the internal conditions and adjustment of the crushing assembly 5. The crushing assembly 5 is located inside the crushing cavity 23 and is driven by the drive assembly 6 located outside the crushing chamber 2. Specifically, as shown... Figure 1-3 As shown, the crushing component 5 uses hammer blades to crush materials, and is connected to the drive component 6 via a belt 61 to achieve the operation of the crushing component 5. The upper end of the lower housing 22 is provided with a pressure-bearing surface 221, and the lower end of the upper housing 21 is provided with a downward pressure surface 211 that contacts the pressure-bearing surface 221. By setting the pressure-bearing surface 221 and the downward pressure surface 211, the tightness of the connection between the upper housing 21 and the lower housing 22 can be ensured, while preventing instability of the connection caused by vibrations generated during the operation of the crushing component 5. A screen 3 is also provided inside the lower housing 22, located below the crushing component 5. Figure 4As shown, the screen 3 is composed of an arc-shaped screen plate 31 with the same inner diameter as the lower housing 22. The arc-shaped screen plate 31 is concave to ensure the normal operation of the crushing component 5. The screen plate 31 is provided with screen holes 34 for screening. The arrangement, diameter and number of the screen holes 34 can be set according to the particle size of the material to be screened. The screen plate 31 is provided with horizontal mounting edges 32 at both ends. The horizontal mounting edges 32 extend outward along the diameter of the screen plate 31 at both ends so that they can be directly mounted to the lower housing during installation. The pressure-bearing surface 221 of the upper shell 22 is adapted to the lower shell 22. When the lower pressure surface 211 is in contact with the pressure-bearing surface 221, the upper shell 21 clamps the horizontal mounting edge 32 between the upper shell 21 and the lower shell 22 to realize the installation of the screen 3. Then, through the arc-shaped mounting edges 33 on both sides of the screen plate 31 that extend downward along the arc surface of the screen plate 31, the two ends of the arc-shaped mounting edges 33 are respectively connected to the horizontal mounting edges 32 on both ends of the screen plate 31. That is, the arc-shaped mounting edges 33 and the horizontal mounting edges 32 form a screen plate 31 together with the screen plate 31. When the horizontal mounting edge 32 is engaged with the pressure-bearing surface 221, the mounting cavity will abut against the edge of the lower housing 22, preventing the screen 3 from slipping off between the pressure-bearing surface 221 and the lower pressure surface 211 due to vibrations generated during the operation of the crusher, thus improving the vibration resistance of the screen 3. When installing or replacing the screen 3, open the upper housing 21, align the horizontal mounting edge 32 of the screen 3 with the pressure-bearing surface 221 of the lower housing 22, and ensure the arc-shaped mounting edge 33 fits against the inner wall of the crushing chamber 23. By closing the upper housing 21 and locking it to the lower housing 22 using the locking assembly, the screen 3 can be clamped and fixed. The installation steps are simple and fast, and no bolts are required for connection, ensuring smooth material flow and reducing the amount of material residue in the crushing chamber 23. Furthermore, by setting the arc-shaped mounting edge 33, the connection between the screen 3 and the lower housing 22 can be ensured to be tight, improving the performance of the screen 3 and preventing the screen 3 from slipping off between the pressure surface 221 and the lower pressure surface 211.

[0019] To ensure the stability of the screen 3 installation, enhance its vibration resistance, and prevent the screen 3 from shifting, the width of the horizontal mounting edge 32 is the same as the thickness of the lower housing 22, and the arc-shaped mounting edge 33 abuts against the inner wall of the crushing chamber 23. This arrangement also ensures that the screen 3 fits seamlessly with the housing, preventing material leakage.

[0020] To facilitate the smooth sliding of materials onto the screen 3 during the crushing process, reduce material accumulation, and improve crushing efficiency, an inclined surface 212 is provided above the lower pressing surface 211. One end of the inclined surface 212 is connected to the inner side of the upper shell 21, and the other end is connected to the side of the lower pressing surface 211 away from the upper shell 21.

[0021] To ensure the stability of the upper shell 21 and the downward pressure exerted by the upper shell 21 on the lower shell 22 to clamp the horizontal mounting edge 32 of the screen 3, a reinforcing plate 213 is also provided inside the upper shell 21. The reinforcing plate 213 is fitted along the bending direction of the upper shell 21 on the inner wall of the upper shell 21. Specifically, as shown in... Figure 1-3 As shown, the reinforced version 213 is detachably mounted on the upper housing 21 by bolts 215.

[0022] The aforementioned fastening component 4 can use existing clips, flanges, etc., but to save costs and reduce the weight of the upper housing 21 for easier operation, such as... Figure 1-3 As shown, the fastening assembly 4 includes a mounting base 41 disposed on the lower housing 22, a pin 42 hinged to the mounting base 41, and a fixing plate 44 disposed on the upper housing 21 on the same vertical plane as the mounting base 41. One end of the pin 42 passing through the fixing plate 44 has a threaded section, and a locking nut 43 for locking the upper housing 21 and the lower housing 22 is disposed on the threaded section. Figure 1-3 As shown, a mounting base 41 is provided on the lower housing 22, and a pin 42 is hinged to the mounting base 41. When the upper housing 21 and the lower housing 22 are opened, the pin 42 can be rotated to the downward direction to facilitate the disassembly and assembly of the screen 3 and the crushing assembly 5. The end of the pin 42 away from the mounting base 41, that is, the end that passes through the fixing plate 44, has a threaded section. The upper housing 21 and the lower housing 22 are fastened by a locking nut 43 that is threadedly connected to the threaded section. The upper housing 21 has a fixing plate 44 located on the same vertical plane as the mounting base 41. The fixing plate 44 has a U-shaped slot. When it is necessary to close the upper housing 21 and the lower housing 22, the pin 42 is rotated upward, which drives the upper housing 21 to rotate. The pin 42 passes through the through hole, and the lower pressure surface 211 is in contact with the pressure bearing surface 221. At this time, the locking nut 43 is screwed onto the pin 42 and locked to achieve the fastening of the upper housing 21 and the lower housing 22, so as to avoid instability caused by the vibration of the crushing component 5. The fixing plate 44 also allows the operator to open and close the upper housing 21.

Claims

1. A pulverizer, comprising a pulverizing chamber (2), a pulverizing assembly (5), and a driving assembly (6), wherein the pulverizing chamber (2) comprises an upper shell (21) and a lower shell (22) for enclosing and forming a pulverizing cavity, one end of the upper shell (21) is hinged to one end of the lower shell (22), and the other end of the lower shell (22) is provided with a fastening assembly (4) detachably connected to the upper shell (21); the pulverizing assembly (5) is disposed within the pulverizing cavity and is drively connected to the driving assembly (6) disposed outside the pulverizing chamber (2); characterized in that: The lower housing (22) has a pressure-bearing surface (221) at its upper end, and the upper housing (21) has a pressure-lowering surface (211) at its lower end that is in contact with the pressure-bearing surface (221). The lower housing (22) also has a screen (3) located below the crushing component (5). The screen (3) includes an arc-shaped screen plate (31) with the same inner diameter as the lower housing (22). The two ends of the screen plate (31) are provided with horizontal mounting edges (32) extending outward along its diameter. The horizontal mounting edges (32) are engaged with the pressure-bearing surface (221). When the pressure-lowering surface (211) is in contact with the pressure-bearing surface (221), the upper housing (21) clamps the horizontal mounting edges (32) between the upper housing (21) and the lower housing (22). The screen plate (31) is also provided with arc-shaped mounting edges (33) extending downward along its arc surface on both sides, and the two ends of the arc-shaped mounting edges (33) are respectively connected to the horizontal mounting edges (32) located at both ends of the screen plate (31).

2. The pulverizer as described in claim 1, characterized in that: The width of the horizontal mounting edge (32) is the same as the thickness of the lower housing (22), and the arc-shaped mounting edge (33) abuts against the inner wall of the crushing chamber.

3. The pulverizer as described in claim 1, characterized in that: An inclined surface (212) is provided above the pressure surface (211). One end of the inclined surface (212) is connected to the inner side of the upper shell (21), and the other end is connected to the side of the pressure surface (211) away from the upper shell (21).

4. A pulverizer as described in claim 1, characterized in that: The upper shell (21) is also provided with a reinforcing plate (213), which is attached to the inner wall of the upper shell (21) along the bending direction of the upper shell (21).

5. A pulverizer as described in any one of claims 1-4, characterized in that: The fastening assembly (4) includes a mounting base (41) disposed on the lower housing (22), a pin (42) is hinged on the mounting base (41), and a fixing plate (44) disposed on the upper housing (21) and located on the same vertical plane as the mounting base (41). The pin (42) has a threaded section at one end that passes through the fixing plate (44), and a locking nut (43) for locking the upper housing (21) and the lower housing (22) is disposed on the threaded section.

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