A spiral trajectory vibrating screening apparatus

Abstract

The utility model discloses a spiral trajectory vibrating screening equipment, including the box, the bottom of box is equipped with the vibration base for driving the box vibration, the top of box is equipped with spiral feeding channel, the inside of box is equipped with the chamber, the downside of spiral feeding channel is equipped with the discharge gate of chamber intercommunication, be equipped with a plurality of screen cloth that gradually smaller mesh is distributed from top to bottom in the chamber, be equipped with annular location strip in the screen cloth bottom on the chamber inner wall, be equipped with the slot on the chamber inner wall, the sidewall of the inclination highest point of screen cloth is equipped with the extension in the slot inboard, be equipped with the protruding piece in the slot in the extension bottom and eccentric rotation, the protruding piece can rotate and intermittently jolt the extension up and down. The utility model has can drive screen cloth alone to shake, carry out the cleaning to screen cloth aperture, avoid screen cloth blockage, guarantee the normal work of screen cloth, effectively improve screening effect etc.

Description

Technical Field

[0001] This utility model relates to a spiral trajectory vibrating screening device, belonging to the field of mining technology. Background Technology

[0002] After mining ore, mining companies need to process it into gravel. Since crushers themselves cannot effectively control the uniformity of particle size, screening machines are needed to classify the gravel into different sizes to supply customers with different needs.

[0003] Chinese patent application CN210730135U discloses an ore screening machine, which includes a feeding dust suppression cylinder, a screening cylinder, and a vibrating base arranged sequentially from top to bottom. The feeding dust suppression cylinder extends horizontally, and a spiral feeding shaft is arranged horizontally inside the feeding dust suppression cylinder. The spiral feeding shaft is connected to a rotating motor. A feed inlet is provided on the upper side of the tail end of the feeding dust suppression cylinder, and a discharge channel is provided on the lower side of the front end of the feeding dust suppression cylinder. Two screening screens are arranged inclinedly from top to bottom inside the screening cylinder, and the two screening screens are inclined in opposite directions.

[0004] In existing technologies, after the ore is mined, there are particles of various sizes. Continuous screening work causes some particles to easily remain in the mesh, causing the screen to become clogged, which affects the normal screening of the screen and reduces the screening effect. Utility Model Content

[0005] The purpose of this invention is to provide a spiral trajectory vibrating screening device that solves the problems of easy screen clogging in the existing technology.

[0006] The above-mentioned technical objective of this utility model is mainly achieved through the following technical solution: a spiral trajectory vibrating screening device, including a box body, a vibrating base for driving the box body to vibrate at the bottom of the box body, a spiral feeding channel at the top of the box body, a chamber inside the box body, a discharge port communicating with the chamber at the lower side of the spiral feeding channel, a plurality of screens distributed from top to bottom with gradually decreasing mesh size in the chamber, an annular positioning strip at the bottom of the screens on the inner wall of the chamber, a groove on the inner wall of the chamber, an extension located inside the groove on the side wall of the highest inclined point of the screen, a protrusion located at the bottom of the extension and eccentrically rotatable in the groove, the protrusion being able to rotate up and down and intermittently push the extension.

[0007] As a further preferred technical solution of this utility model, each of the screens is inclined downwards, and the lowest point of inclination of one of the screens is in the same direction as the highest point of inclination of the adjacent screen.

[0008] As a further preferred technical solution of this utility model, the side wall of the chamber is provided with a discharge port that is connected to the lowest inclined point of the screen and inclined in the same direction as the screen. The bottom of the inner side of the discharge port is provided with a strip-shaped notch, and the top of the strip-shaped notch is provided with an elastic connector that is connected to the side wall of the screen.

[0009] As a further preferred technical solution of this utility model, a drive motor is provided at the bottom of the slot, and the output shaft of the drive motor is coaxially connected to the rotation center of the protrusion.

[0010] As a further preferred technical solution of this utility model, the upper and lower sides of the end of the extension are provided with protrusions, the inner wall of the slot is provided with a limiting groove that cooperates with the protrusion, and a gap is provided between the inner wall of the limiting groove and the outer wall of the protrusion.

[0011] As a further preferred technical solution of this utility model; the upper side of the extension is provided with a fixed cylinder connected to the upper side of the slot, the fixed cylinder is provided with an axially movable column, the fixed cylinder is provided with a telescopic spring connected to the movable column, and the end of the movable column is provided with a dome structure that abuts against the extension.

[0012] Therefore, this utility model has the characteristics of being able to drive the screen to shake independently, cleaning the screen pores, avoiding screen blockage, ensuring the normal operation of the screen, and effectively improving the screening effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 yes Figure 1 Enlarged view of the structure at point A in the diagram;

[0015] Figure 3 yes Figure 1 Enlarged view of the structure at point B in the diagram. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0017] like Figure 1-2As shown, a spiral trajectory vibrating screening device includes a housing 1. A vibrating base 2 is located at the bottom of the housing 1 to drive the housing 1 to vibrate. The vibrating base 2, located at the bottom of the housing 1, vibrates the entire housing 1. A motor is installed inside the vibrating base 2, and a cam is installed at the end of the motor to drive the housing 1 to vibrate. A spiral feeding channel 3 is located above the housing 1. A chamber 11 is located inside the housing 1. A discharge port 31 communicating with the chamber 11 is located on the lower side of the spiral feeding channel 3. A feed port is located at the top of the spiral feeding channel 3. Stones enter the spiral feeding channel 3 through the feed port, and the spiral feeding channel 3 conveys the stones through a spiral mechanism. The stones enter the chamber 11 of the housing through the discharge port 31. Multiple screens 4, arranged from top to bottom with gradually decreasing mesh size, are installed in the chamber 11. After entering the chamber 11, the stones fall directly onto the uppermost screen 4, while larger particles are blocked by the uppermost screen. Smaller particles continue to fall downwards and pass through each screen 4 in sequence, thereby achieving the screening of stones of different sizes. The inner wall of the chamber 11 is provided with an annular positioning strip 111 located at the bottom of the screen 4. The annular positioning strip 111 supports the bottom edge of the screen 4. The inner wall of the chamber 11 is provided with a groove 112. The side wall of the highest inclined point of the screen 4 is provided with an extension 41 located inside the groove 112. The groove 112 is provided with a protrusion 42 located at the bottom of the extension 41 and can rotate eccentrically. The protrusion 42 can rotate up and down and intermittently push the extension 41. The protrusion 42 is located at the bottom of the extension 41 and can rotate eccentrically intermittently, so that it can push the extension 41 during the rotation, thereby driving the entire screen 4 to shake. This causes the particles in the mesh of the screen 4 to be shaken off during the shaking process, thereby cleaning the mesh of the screen 4 and avoiding the clogging of the mesh of the screen 4, which would affect the screening effect of the stone.

[0018] like Figure 1-3As shown, each screen 4 is inclined downwards, with the lowest point of one screen 4 in the same direction as the highest point of the adjacent screen 4. The inclination directions of each screen 4 are opposite, and the screens 4 are distributed sequentially from top to bottom. A discharge port 113 is provided on the side wall of the chamber 11, connected to the lowest point of the screen 4 and inclined in the same direction as the screen 4. When the stone falls to the uppermost screen 4, larger stones slide down the inclined screen 4 and are discharged through the equally inclined discharge port 113. Smaller stones continue to fall sequentially from the mesh of each screen 4. Those remaining on the top surface of the screen 4 slide down the inclined screen 4 and are discharged through the same inclined discharge port 113. Similarly, the inclined discharge port 113 discharges the stone material to achieve screening. The bottom inner side of the discharge port 113 is provided with a strip-shaped groove 114. The top of the strip-shaped groove 114 is provided with an elastic connector 115 that connects to the side wall of the screen 4. The elastic connector 115 is made of rubber or leather material, which can connect the screen 4 and seal the gap between the screen 4 and the discharge port 113. This prevents the screen 4 from having a large gap with the discharge port 113 when it shakes, which would cause the stones to fall directly and affect the screening effect. At the same time, the strip-shaped groove 114 increases the movable gap of the screen 4, improves the shaking effect of the screen 4, and ensures the screening and cleaning effects.

[0019] like Figure 1-2 As shown, a drive motor 43 is provided at the bottom of the slot 112. The output shaft of the drive motor 43 is coaxially connected to the rotation center of the protrusion 42. The drive motor 43 can drive the protrusion 42 to rotate eccentrically, so as to control the shaking of the screen 4 and thus clean the mesh of the screen 4. The upper and lower sides of the end of the extension 41 are provided with protrusions 411. The inner wall of the slot 112 is provided with a limiting groove 116 that cooperates with the protrusion 411. There is a gap between the inner wall of the limiting groove 116 and the outer wall of the protrusion 411. The setting of the limiting groove 116 and the protrusion 411 is to limit the screen 4 and prevent the screen 4 from shaking excessively and shifting. At the same time, the gap between the inner wall of the limiting groove 116 and the outer wall of the protrusion 411 increases the mobility of the screen 4 and avoids hard connection. This can lead to damage to components during vibration. The upper side of the extension 41 is provided with a fixed cylinder 44 connected to the upper side of the slot 112. The fixed cylinder 44 is provided with an axially movable column 45. The fixed cylinder 44 is provided with a telescopic spring 441 connected to the movable column 45. The end of the movable column 45 is provided with a dome structure that abuts against the extension 41. The movable column 45 passes through the middle of the fixed cylinder 44 and abuts against the upper side of the extension 41 of the screen 4. When the screen 4 vibrates, the movable column 45 can be axially extended and retracted within the fixed cylinder 44 by the action of the movable column 45 and the telescopic spring 441 to adapt to the vibration of the screen 4, buffer the vibration of the screen 4, reduce the impact force, and increase the longitudinal limit of the screen 4 to maintain the stability of the screen 4 position.

[0020] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A spiral trajectory vibrating screening device, comprising a housing (1), wherein the bottom of the housing (1) is provided with a vibrating base (2) for driving the housing (1) to vibrate, a spiral feeding channel (3) is provided above the housing (1), a chamber (11) is provided inside the housing (1), and a discharge port (31) communicating with the chamber (11) is provided on the lower side of the spiral feeding channel (3), characterized in that: The chamber (11) is provided with multiple screens (4) arranged from top to bottom with gradually smaller mesh size. The inner wall of the chamber (11) is provided with an annular positioning strip (111) located at the bottom of the screen (4). The inner wall of the chamber (11) is provided with a slot (112). The side wall of the highest inclined point of the screen (4) is provided with an extension (41) located inside the slot (112). The slot (112) is provided with a protrusion (42) located at the bottom of the extension (41) and can rotate eccentrically. The protrusion (42) can rotate up and down and intermittently push the extension (41).

2. The spiral trajectory vibrating screening device according to claim 1, characterized in that: Each of the screens (4) is inclined downwards, and the lowest point of inclination of one of the screens (4) is in the same direction as the highest point of inclination of the adjacent screen (4).

3. The spiral trajectory vibrating screening device according to claim 2, characterized in that: The side wall of the chamber (11) is provided with a discharge port (113) that is connected to the lowest inclined point of the screen (4) and inclined in the same direction as the screen (4). The bottom of the inner side of the discharge port (113) is provided with a strip-shaped notch (114), and the top of the strip-shaped notch (114) is provided with an elastic connector (115) that is connected to the side wall of the screen (4).

4. The spiral trajectory vibrating screening device according to claim 1, characterized in that: The bottom of the slot (112) is provided with a drive motor (43), and the output shaft of the drive motor (43) is coaxially connected to the rotation center of the protrusion (42).

5. The spiral trajectory vibrating screening device according to claim 1, characterized in that: The upper and lower sides of the extension (41) are provided with protrusions (411), and the inner wall of the slot (112) is provided with a limiting groove (116) that cooperates with the protrusions (411). There is a gap between the inner wall of the limiting groove (116) and the outer wall of the protrusions (411).

6. A spiral trajectory vibrating screening device according to claim 1 or 5, characterized in that: The upper side of the extension (41) is provided with a fixed cylinder (44) connected to the upper side of the slot (112). The fixed cylinder (44) is provided with an axially movable column (45). The fixed cylinder (44) is provided with a telescopic spring (441) connected to the movable column (45). The end of the movable column (45) is provided with a dome structure that abuts against the extension (41).

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