A screening jig for mineral processing

Abstract

The present invention relates to the technical field of jigs, and discloses a screening jig for mineral processing, comprising a discharge trough box, a driving mechanism and a bed adjustment mechanism, wherein a screening mechanism is equidistantly installed in a ring on the outer side of the driving mechanism, and a bed adjustment mechanism is installed inside the screening mechanism through a slide groove, and the bed adjustment mechanism is composed of a threaded pipe, a threaded rod, a threaded sleeve, a supporting shaft rod, a second driven bevel gear and a spline rod; the technical solution of the present invention drives the screen to perform lifting and tilting and angle adjustment through the coordinated action of the driving mechanism and the bed adjustment mechanism, adjusts the height of the overflow weir between the machine box and the discharge trough box by lifting and moving the screen, controls the bed thickness by adjusting the overflow weir height, and controls the horizontal movement speed of the bed by adjusting the angle inclination of the screen, so as to facilitate flexible adjustment of the bed thickness and the horizontal movement speed of the bed according to the changes in different ore characteristics and processing volume.

Description

Technical Field

[0001] The invention relates to the technical field of jigs, in particular to a screening jig for mineral processing. Background Art

[0002] In the processing of non-ferrous metals, ferrous metals and rare metal mineral resources, mineral processing technology is an important link. Its purpose is to separate mineral particles with different characteristics for subsequent processing and utilization. The mineral processing process separates useful minerals from other minerals in the ore through physical or chemical means to improve the extraction efficiency and purity of useful minerals. Among them, the screening jig is a common and important equipment in the mineral processing process, which is mainly used to separate mineral particles of different particle sizes and densities.

[0003] A fine ore screening device for tungsten ore processing with announcement number CN115555251A has solved the technical disadvantages of inconvenient secondary screening of tungsten ore and cleaning of accumulated fine tungsten ore. However, similar structures still have many defects in actual use. For example, the existing screening jig cannot control the bed thickness during the mineral processing process and cannot adapt to the changing requirements of different ore characteristics or processing volume. A bed that is too thick will lead to insufficient looseness, aggravate bed blockage, cause poor water flow, and poor stratification effect; a bed that is too thin will cause increased screening loss or bed disorder, thereby affecting the mineral processing effect.

[0004] Therefore, the above technical problems need to be solved. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology, the present invention proposes a screening jig for mineral processing to solve the problem that the bed thickness cannot be controlled and the requirements of different ore properties or processing volume cannot be adapted. If the bed is too thick, it will lead to insufficient looseness, aggravate bed blockage, cause poor water flow, and poor stratification effect; if the bed is too thin, it will cause increased screening loss or bed disorder, thereby affecting the mineral processing effect.

[0006] In order to solve the above technical problems, the basic technical solutions proposed by the present invention are:

[0007] A screening jig for mineral processing, comprising a discharge trough box, a drive mechanism, and a bed adjustment mechanism, wherein a screening mechanism is equidistantly mounted in an annular manner on the outer side of the drive mechanism, the screening mechanism including a movably mounted screen, a bed adjustment mechanism being mounted inside the screening mechanism via a chute, and one end of the bed adjustment mechanism extending into the interior of the drive mechanism, the bed adjustment mechanism being composed of a threaded tube, a threaded rod, a threaded sleeve, a support shaft, a second driven bevel gear, and a spline rod; the drive mechanism being composed of an installation box, a first gear ring, a second gear ring, a drive assembly, and a transmission conversion assembly, wherein the transmission conversion assemblies are equidistantly distributed in an annular manner inside the installation box, the drive assembly providing power to the first gear ring and the second gear ring, and the first gear ring and the second gear ring are in transmission connection with the bed adjustment mechanism;

[0008] The driving mode of the bed adjustment mechanism can be converted through the transmission conversion component, so that the bed adjustment mechanism has a layer thickness adjustment mode and an angle adjustment mode. The layer thickness adjustment mode drives the screen to move up and down, and the bed thickness is adjusted by lifting the screen. The angle adjustment mode drives the screen to adjust the angle tilt, and the horizontal movement speed of the bed is adjusted by adjusting the screen angle tilt.

[0009] Preferably, a second driven bevel gear is fixedly installed at one end of the threaded tube, and a spline rod is fixedly installed at one end of the threaded rod. The spline rod passes through the interior of the threaded tube and extends to the interior of the transmission conversion assembly and is rotatably connected to the transmission conversion assembly. The outer sides of the threaded tube and the threaded rod are both sleeved with a threaded sleeve, and a supporting shaft rod is installed on the top of the threaded sleeve through a shaft bolt.

[0010] Preferably, the transmission conversion assembly consists of a bearing frame, a second gear, a driving bevel gear, a first driven bevel gear, a shaft frame and a third gear, wherein the second gear is meshed with the second gear ring, and the two sides of the bottom of the driving bevel gear are respectively meshed with the first driven bevel gear and the second driven bevel gear, the driving bevel gear is rotatably mounted inside the bearing frame, the bottom of the second gear is fixedly mounted on the top of the driving bevel gear through a shaft rod, the first driven bevel gear is movably mounted inside the mounting box through the shaft frame, and the first driven bevel gear is movably sleeved on the outside of the spline rod, and the first driven bevel gear is movably sleeved on the outside of the spline rod. The interior of the movable bevel gear is provided with a bayonet groove corresponding to the spline rod, and the first driven bevel gear is connected to the spline rod bayonet through the bayonet groove, and the third gear is fixedly mounted on one side of the shaft frame, and the third gear is meshed with the first gear ring. The third gear is driven to rotate by the rotating first gear ring, and the rotating third gear drives the first driven bevel gear to move on the outside of the spline rod through the shaft frame, thereby realizing the connection and unlocking of the first driven bevel gear and the spline rod bayonet, controlling the meshing connection and disengagement of the first driven bevel gear and the driving bevel gear, and converting the transmission mode of the transmission conversion assembly.

[0011] Preferably, the drive assembly consists of a mounting frame, a first servo motor, a second servo motor, and a first gear, wherein the first servo motor and the second servo motor are both fixedly mounted on one side of the mounting frame, and the second servo motor is located above the first servo motor, and the output ends of the first servo motor and the second servo motor are both equipped with a first gear through a shaft, and the first gear at the output end of the first servo motor is meshed with the first gear ring, and the first gear at the output end of the second servo motor is meshed with the second gear ring.

[0012] Preferably, the top of the outer side of the installation box is equidistantly mounted with guide inclined plates via shafts, the first gear ring and the second gear ring are rotatably mounted inside the installation box, and the second gear ring is located above the first gear ring.

[0013] Preferably, an annular water pipe extending to the front is fixedly installed inside the discharge circular trough box, and the annular water pipe is connected to the screening mechanism through equally distributed pipes, and a support frame is fixedly installed at the bottom of the discharge circular trough box.

[0014] The screening mechanism consists of a chassis, a discharge pipe, a transmission device and a screen, wherein the bottom of the screen is movably connected to the support shaft through a shaft bolt, the top of the discharge pipe is transmission connected to the bottom of the chassis through a diaphragm, and the transmission device is fixedly installed on the top of the support frame and is transmission connected to the discharge pipe.

[0015] Preferably, a feeding mechanism extending to the top is installed inside the driving mechanism, and the bottom of the feeding mechanism passes through the bottom of the discharge circular trough box.

[0016] The beneficial effects of the present invention are:

[0017] The technical solution of the present invention drives the screen to perform lifting and tilting adjustment through the coordinated action of the driving mechanism and the bed adjustment mechanism, and adjusts the overflow weir height between the machine box and the discharge trough box by lifting and moving the screen, and controls the bed thickness by adjusting the overflow weir height. By controlling the bed thickness, it is convenient to flexibly adjust the bed thickness according to the changes in different ore characteristics and processing volume, and balance the material stratification efficiency and screening loss; the horizontal movement speed of the bed is controlled by adjusting the angle inclination of the screen, and the horizontal movement speed of the layer is flexibly adjusted according to the changes in different ore characteristics and processing volume to avoid bed accumulation and prevent screening loss; specifically, the first gear ring and the second gear ring are driven to rotate by the driving component, and the rotation of the threaded tube and the threaded rod is controlled by the transmission conversion component, so that the wire sleeve drives the support shaft rod to flip, and the vertical position and inclination angle of the screen are adjusted, thereby dynamically adjusting the bed thickness and horizontal movement speed to meet the requirements of different ore characteristics and processing volume, and improving the mineral processing efficiency and particle size classification accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the overall structure of the present invention;

[0019] Figure 2 Schematic diagram of the internal structure of the discharge circular trough box in the present invention;

[0020] Figure 3 Schematic diagram of the internal structure of the screening mechanism of the present invention;

[0021] Figure 4 Schematic diagram of the internal structure of the driving mechanism in the present invention;

[0022] Figure 5 Schematic diagram of the connection structure between the screening mechanism and the driving mechanism in the present invention;

[0023] Figure 6 Schematic diagram of the screening mechanism structure of the present invention;

[0024] Figure 7 Schematic diagram of the transmission connection between the bed adjustment mechanism and the driving mechanism in the present invention;

[0025] Figure 8 Schematic diagram of the driving mechanism structure of the present invention;

[0026] Figure 9 Schematic diagram of the structure of the bed adjustment mechanism in the present invention;

[0027] Figure 10 Schematic diagram of the transmission connection structure between the bed adjustment mechanism and the transmission conversion assembly in the present invention;

[0028] Figure 11 It is a schematic diagram of the transmission conversion component in the present invention;

[0029] Figure 12 It is a structural schematic diagram of the feeding mechanism in the present invention.

[0030] Description of reference numerals:

[0031] 1. Discharge trough box; 101. Annular water pipe; 102. Support frame; 2. Screening mechanism; 201. Chassis; 202. Discharge pipe; 203. Transmission device; 204. Screen; 3. Drive mechanism; 301. Mounting box; 302. First gear ring; 303. Second gear ring; 304. Drive assembly; 3041. Mounting frame; 3042. First servo motor; 3043. Second servo motor; 3044. First gear; 305, transmission conversion assembly; 3051, bearing frame; 3052, second gear; 3053, driving bevel gear; 3054, first driven bevel gear; 3055, shaft frame; 3056, third gear; 306, material guide ramp; 4, feeding mechanism; 5, bed adjustment mechanism; 501, threaded pipe; 502, threaded rod; 503, threaded sleeve; 504, supporting shaft; 505, second driven bevel gear; 506, spline rod. DETAILED DESCRIPTION

[0032] The following will be combined with the Figure 1 To the attached Figure 12 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] A screening jig for mineral processing, comprising a discharge trough box 1, a driving mechanism 3 and a bed adjustment mechanism 5, wherein a screening mechanism 2 is equidistantly installed in an annular manner on the outer side of the driving mechanism 3, the screening mechanism 2 includes a movably installed screen 204, a bed adjustment mechanism 5 is installed inside the screening mechanism 2 through a slide groove, and one end of the bed adjustment mechanism 5 extends into the interior of the driving mechanism 3, the bed adjustment mechanism 5 is composed of a threaded tube 501, a threaded rod 502, a threaded sleeve 503, a supporting shaft 504, a second driven bevel gear 505 and a spline rod 506; the driving mechanism 3 is composed of an installation box 301, a first gear ring 302, a second gear ring 303, a driving assembly 304 and a transmission conversion assembly 305, wherein the transmission conversion assembly 305 is equidistantly distributed in an annular manner inside the installation box 301, the driving assembly 304 provides power to the first gear ring 302 and the second gear ring 303, and the first gear ring 302 and the second gear ring 303 are transmission-connected to the bed adjustment mechanism 5;

[0034] It should be noted that the discharge trough box 1 is mainly used to collect and discharge the ore after screening, and the driving mechanism 3 is responsible for providing the overall working power. The power transmission and conversion are realized through the installation box 301, the first gear ring 302, the second gear ring 303, the driving component 304 and the transmission conversion component 305. The bed adjustment mechanism 5 adjusts the thickness or angle of the screen 204 through the coordinated action of the threaded tube 501, the threaded rod 502, the wire sleeve 503, the support shaft 504, the second driven bevel gear 505 and the spline rod 506, thereby affecting the thickness or horizontal movement speed of the bed; the screening mechanism 2 is the main execution unit of the screening action, and the internal screen 204 can be adjusted between the driving mechanism 3 and the bed adjustment Under the action of the mechanism 5, the screen 204 is lifted and lowered and adjusted in angle, thereby effectively sorting the ore under the drive of the screening mechanism 2; the driving component 304 is responsible for providing power, and indirectly controls the rotation of the threaded tube 501 and the threaded rod 502 by driving the rotation of the first gear ring 302 and the second gear ring 303; the first gear ring 302 and the second gear ring 303 control the transmission conversion component 305 through the gear mechanism engaged therewith, and then adjusts the connection state between the spline rod 506 and the threaded tube 501 and the threaded rod 502, so that the screen 204 can be adjusted in the vertical direction inside the chassis 201; the transmission conversion component 305 transmits power through different transmission paths in different modes;

[0035] The driving mode of the bed adjustment mechanism 5 can be converted by the transmission conversion component 305, so that the bed adjustment mechanism 5 has a layer thickness adjustment mode and an angle adjustment mode. The layer thickness adjustment mode drives the screen 204 to move up and down, and the bed thickness is adjusted by moving the screen 204 up and down. The angle adjustment mode drives the screen 204 to adjust the angle of inclination, and the horizontal movement speed of the bed is adjusted by adjusting the angle of inclination of the screen 204.

[0036] It should be noted that the second driven bevel gear 505 is always engaged with the active bevel gear 3053 in the transmission conversion component 305, and the first driven bevel gear 3054 in the transmission conversion component 305 is engaged or disengaged with the active bevel gear 3053 according to the mode requirements; in the layer thickness adjustment mode: first, the first gear ring 302 is driven to rotate slightly forward by the driving component 304, and the first gear ring 302 that rotates forward drives the transmission conversion component 305 to be connected to the spline rod 506 by a pin transmission, specifically, the first servo motor 3042 is powered on to drive the first gear 3044 to rotate forward, and the first gear 304 that rotates forward is driven The first gear ring 302 is driven to rotate in the positive direction with a small amplitude. The first gear ring 302, which rotates in the positive direction with a small amplitude, drives the shaft frame 3055 to perform a positive swinging rotation motion through the meshing third gear 3056. The positive swinging rotation motion of the shaft frame 3055 drives the first driven bevel gear 3054 to move linearly outside the spline rod 506 through the sliding groove and the slider, so that the first driven bevel gear 3054 moves to the outside of the spline rod 506, realizing the first driven bevel gear 3054 and the outer side of the spline rod 506. The bayonet transmission connection is now achieved. At this time, the first driven bevel gear 3054 in the transmission conversion assembly 305 is meshed with the driving bevel gear 3053. Then The second gear ring 303 is driven to rotate by the driving assembly 304, and the rotating second gear ring 303 drives the transmission conversion assembly 305 to operate. The driving bevel gear 3053 in the transmission conversion assembly 305 simultaneously drives the meshing first driven bevel gear 3054 and the second driven bevel gear 505 to rotate. The rotating second driven bevel gear 505 drives the threaded tube 501 to rotate. At the same time, the rotating first driven bevel gear 3054 drives the spline rod 506 to rotate through the spline groove. The rotating spline rod 506 drives the threaded rod 502 to rotate, thereby achieving the purpose of driving the threaded tube 501 and the threaded rod 502 at the same time. Finally, the threaded tube 501 rotates synchronously with the rotation of the threaded tube 501. 01. The threaded rod 502 drives the outer sleeve 503 to make relative linear motion respectively. The two sleeves 503 that move relative linearly respectively drive the support shaft 504 to flip. The synchronously flipped support shaft 504 adjusts the vertical position of the screen 204 inside the chassis 201. By adjusting the vertical position of the screen 204 inside the chassis 201, the height of the overflow weir between the chassis 201 and the discharge circular trough box 1 is adjusted. By adjusting the overflow weir height, the bed thickness is controlled, the material stratification efficiency and the screening loss are balanced, the particle size classification accuracy and the mineral processing efficiency are improved, and the bed thickness can be flexibly adjusted according to the characteristics of different ores and the changes in processing volume.

[0037] When the mode of angle adjustment is switched to, the driving assembly 304 drives the first gear ring 302 to rotate slightly in the opposite direction, and the slight reverse rotation of the first gear ring 302 drives the transmission conversion assembly 305. Specifically, the first servo motor 3042 is powered on to drive the first gear 3044 to rotate in the opposite direction, and the reversely rotating first gear 3044 drives the first gear ring 302 to rotate slightly in the opposite direction, and the slightly reversely rotating first gear ring 302 drives the shaft frame 3055 to perform a reverse swinging rotation motion through the meshing third gear 3056. The reverse swinging rotation shaft frame 3055 drives the first driven bevel gear 3054 to move linearly outside the spline rod 506 through the sliding groove and the slider, so that the first driven bevel gear 3054 is away from the spline rod 506, so as to realize the purpose of releasing the bayonet connection between the spline rod 506 and the spline rod 506. At this time, the first driven bevel gear 3054 is moved linearly outside the spline rod 506, so that the first driven bevel gear 3054 is moved away from the spline rod 506, so as to realize the purpose of releasing the bayonet connection between the spline rod 506 and the spline rod 506. The moving bevel gear 3054 is disengaged from the active bevel gear 3053; when the transmission conversion component 305 is only transmitted to the second driven bevel gear 505, the driving component 304 drives the transmission conversion component 305 to operate, and the operating transmission conversion component 305 drives the second driven bevel gear 505 to rotate, and the rotating second driven bevel gear 505 cooperates with the outer threaded sleeve 503 through the threaded tube 501 to drive the support shaft 504 to flip, and the flipped support shaft 504 drives one side of the screen 204 to flip and adjust the inclination angle with the other support shaft 504 as the axis. The inclination angle of the screen 204 affects the horizontal movement of the ore, so that the horizontal movement speed of the bed is controlled by adjusting the inclination angle of the screen 204, which is convenient for flexibly adjusting the horizontal movement speed of the layer according to the characteristics of different ore and changes in processing volume, avoiding bed accumulation and preventing screening loss.

[0038] like Figures 9 to 11 As shown, a second driven bevel gear 505 is fixedly mounted on one end of the threaded tube 501, and a spline rod 506 is fixedly mounted on one end of the threaded rod 502. The spline rod 506 passes through the interior of the threaded tube 501 and extends into the interior of the transmission conversion assembly 305 to be rotatably connected to the transmission conversion assembly 305. The outer sides of the threaded tube 501 and the threaded rod 502 are both sleeved with a threaded sleeve 503, and a support shaft 504 is mounted on the top of the threaded sleeve 503 through a shaft bolt.

[0039] It should be noted that the second driven bevel gear 505 transmits the rotational motion of the transmission conversion component 305 to the threaded tube 501 for rotational motion. The threaded tube 501 is mainly used to convert the rotational motion into linear motion through the threaded sleeve 503 with a threaded fit, drive the support shaft 504 to perform a flipping motion, and utilize the flipping motion support shaft 504 to drive the screen 204 to make a tilt angle, and the transmission drive threaded rod 502 is connected to the transmission conversion component 305 by a spline rod 506 for rotational motion. The rotating threaded rod 502 converts the rotational motion into linear motion through the threaded sleeve 503 with a threaded fit, and drives the support shaft 504 to perform a flipping motion. When the threaded tube 501 and the threaded rod 502 rotate synchronously, the two flipping motion support shafts 504 drive the screen 204 to rise and fall.

[0040] like Figures 10 and 11 As shown, the transmission conversion assembly 305 is composed of a bearing frame 3051, a second gear 3052, a driving bevel gear 3053, a first driven bevel gear 3054, a shaft frame 3055 and a third gear 3056, wherein the second gear 3052 is meshed with the second gear ring 303, and the bottom sides of the driving bevel gear 3053 are respectively meshed with the first driven bevel gear 3054 and the second driven bevel gear 505, the driving bevel gear 3053 is rotatably mounted inside the bearing frame 3051, the bottom of the second gear 3052 is fixedly mounted on the top of the driving bevel gear 3053 through a shaft rod, the first driven bevel gear 3054 is movably mounted inside the mounting box 301 through the shaft frame 3055, and the first driven bevel gear 3054 is movably sleeved on the outer side of the spline rod 506, The first driven bevel gear 3054 is provided with a latch groove corresponding to the spline rod 506 inside. The first driven bevel gear 3054 is latched and connected with the spline rod 506 through the latch groove. The third gear 3056 is fixedly mounted on one side of the shaft frame 3055, and the third gear 3056 is meshed and connected with the first gear ring 302. The third gear 3056 is driven to rotate by the rotating first gear ring 302. The rotating third gear 3056 drives the first driven bevel gear 3054 to move outside the spline rod 506 through the shaft frame 3055, thereby realizing the latch connection and unlocking of the first driven bevel gear 3054 and the spline rod 506, and also controlling the meshing connection and disengagement of the first driven bevel gear 3054 and the driving bevel gear 3053, thereby converting the transmission mode of the transmission conversion assembly 305.

[0041] It should be noted that the bearing frame 3051 provides support to ensure that the active bevel gear 3053 can rotate smoothly, and the second gear 3052 transmits the rotational power through the meshing connection with the second gear ring 303; the active bevel gear 3053, as a key component, transmits the rotational power to the first driven bevel gear 3054 and the second driven bevel gear 505, thereby realizing a multi-stage gear transmission; Figure 10 、 Figure 11It can be seen that a slide groove is provided inside the shaft frame 3055, and a slider corresponding to the slide groove is provided on the outside of the first driven bevel gear 3054, and the slider extends into the slide groove and is movably connected to the slide groove. The shaft frame 3055 is transmission-connected to the first driven bevel gear 3054 of the slider through the slide groove. When the shaft frame 3055 swings and rotates, the shaft frame 3055 drives the first driven bevel gear 3054 to move on the spline rod 506 through the cooperation of the slide groove and the slider. The moving first driven bevel gear 3054 is connected and unlocked with the spline rod 506 through the pin groove, and at the same time, the first driven bevel gear 3054 is meshed or disengaged with the active bevel gear 3053, thereby changing the working mode of the transmission conversion component 305.

[0042] like Figure 9 As shown, the drive assembly 304 consists of a mounting frame 3041, a first servo motor 3042, a second servo motor 3043, and a first gear 3044. The first servo motor 3042 and the second servo motor 3043 are both fixedly mounted on one side of the mounting frame 3041, and the second servo motor 3043 is located above the first servo motor 3042. The output ends of the first servo motor 3042 and the second servo motor 3043 are both equipped with a first gear 3044 via a shaft. The first gear 3044 at the output end of the first servo motor 3042 is meshed with the first gear ring 302, and the first gear 3044 at the output end of the second servo motor 3043 is meshed with the second gear ring 303.

[0043] It should be noted that the first servo motor 3042 and the second servo motor 3043 are respectively used to provide rotational power to control the movement of the drive component 304, wherein the first servo motor 3042 is engaged with the first gear ring 302 through its first gear 3044 to drive the first gear ring 302; the second servo motor 3043 is engaged with the second gear ring 303 through its first gear 3044 to drive the second gear ring 303; the first gear 3044 and the second gear ring 303 are accurately controlled and driven to perform independent rotational movement.

[0044] like Figures 7 and 8 As shown, a material guide inclined plate 306 is equidistantly installed on the top of the outer side of the installation box 301 through a shaft, and the first gear ring 302 and the second gear ring 303 are rotatably installed inside the installation box 301, and the second gear ring 303 is located above the first gear ring 302;

[0045] It should be noted that the material guide inclined plate 306 is rotated on the outer top of the installation box 301 through an axis, and the bottom end of the material guide inclined plate 306 is always in contact with the top surface of the screen 204, and is flipped and moved along with the lifting and lowering movement and angle adjustment of the screen 204, so as to facilitate guiding the material transported by the feeding mechanism 4 to the screen 204.

[0046] like Figures 2 to 4 As shown, an annular water pipe 101 is fixedly installed inside the discharge circular trough box 1 and extends to the front. The annular water pipe 101 is connected to the screening mechanism 2 through equidistantly distributed pipes. A support frame 102 is fixedly installed at the bottom of the discharge circular trough box 1.

[0047] It should be noted that a PLC controller is fixedly installed on the front of the discharge circular trough box 1. The PLC controller is electrically connected to the transmission device 203, the first servo motor 3042 and the second servo motor 3043, and the feeding mechanism 4 through wires, which facilitates the operation of the control device. The water source is distributed to multiple screening mechanisms 2 through the annular water pipe 101, thereby increasing the rising water flow for material screening in the screening mechanism 2; the support frame 102 is used to fix and support the discharge circular trough box 1 to ensure its stability and reliability.

[0048] like Figure 6 As shown, the screening mechanism 2 consists of a chassis 201, a discharge pipe 202, a transmission device 203 and a screen 204, wherein the bottom of the screen 204 is movably connected to the support shaft 504 via a shaft bolt, the top of the discharge pipe 202 is transmission-connected to the bottom of the chassis 201 via a diaphragm, and the transmission device 203 is fixedly mounted on the top of the support frame 102 and is transmission-connected to the discharge pipe 202;

[0049] It should be noted that the transmission device 203 transmits high-frequency vibration to the chassis 201 through the discharge pipe 202, and the high-frequency vibration chassis 201 drives the screen 204 to vibrate. The vibrating screen 204 cooperates with the rising water flow provided by the annular water pipe 101 to achieve efficient screening of the material.

[0050] like Figures 1 to 5 、 Figure 12 As shown, a feeding mechanism 4 extending to the top is installed inside the driving mechanism 3, and the bottom of the feeding mechanism 4 passes through the bottom of the discharge circular trough box 1;

[0051] It should be noted that a material distribution cover is provided on the top of the feeding mechanism 4 , and the feeding mechanism 4 sends the material from the bottom to the top, and distributes the material to the inside of the multiple groups of screening mechanisms 2 through the material distribution cover on the top of the feeding mechanism 4 .

[0052] Based on the explanations and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A screening jig for mineral processing, comprising a discharge trough box (1), a driving mechanism (3) and a bed adjustment mechanism (5), characterized in that: A screening mechanism (2) is equidistantly mounted in an annular manner on the outer side of the driving mechanism (3), wherein the screening mechanism (2) includes a movably mounted screen (204), and a bed adjustment mechanism (5) is mounted inside the screening mechanism (2) via a chute, and one end of the bed adjustment mechanism (5) extends into the interior of the driving mechanism (3), wherein the bed adjustment mechanism (5) comprises a threaded tube (501), a threaded rod (502), a threaded sleeve (503), a supporting shaft (504), a second driven bevel gear (505), and a spline rod. (506); the driving mechanism (3) is composed of an installation box (301), a first gear ring (302), a second gear ring (303), a driving component (304) and a transmission conversion component (305), wherein the transmission conversion component (305) is annularly and equidistantly distributed inside the installation box (301), the driving component (304) provides power to the first gear ring (302) and the second gear ring (303), and the first gear ring (302) and the second gear ring (303) are in transmission connection with the bed adjustment mechanism (5); The driving mode of the bed adjustment mechanism (5) can be converted by the transmission conversion component (305), so that the bed adjustment mechanism (5) has a layer thickness adjustment mode and an angle adjustment mode. The layer thickness adjustment mode drives the screen (204) to move up and down, and the bed thickness is adjusted by the lifting of the screen (204). The angle adjustment mode drives the screen (204) to adjust the angle of inclination, and the horizontal movement speed of the bed is adjusted by adjusting the angle of inclination of the screen (204). A second driven bevel gear (505) is fixedly mounted on one end of the threaded tube (501), a spline rod (506) is fixedly mounted on one end of the threaded rod (502), the spline rod (506) passes through the interior of the threaded tube (501), and extends to the interior of the transmission conversion assembly (305) to be rotatably connected to the transmission conversion assembly (305), the outer sides of the threaded tube (501) and the threaded rod (502) are both sleeved with a threaded sleeve (503), and a support shaft (504) is mounted on the top of the threaded sleeve (503) via a shaft bolt; The transmission conversion assembly (305) is composed of a bearing frame (3051), a second gear (3052), a driving bevel gear (3053), a first driven bevel gear (3054), a shaft frame (3055) and a third gear (3056), wherein the second gear (3052) is meshed with the second gear ring (303), and the bottom sides of the driving bevel gear (3053) are respectively meshed with the first driven bevel gear (3054) and the second driven bevel gear (505), the driving bevel gear (3053) is rotatably mounted inside the bearing frame (3051), the bottom of the second gear (3052) is fixedly mounted on the top of the driving bevel gear (3053) through a shaft, the first driven bevel gear (3054) is movably mounted inside the mounting box (301) through the shaft frame (3055), and the first driven bevel gear (3054) is movably sleeved on the outer surface of the spline rod (506). On the other hand, a latch groove corresponding to the spline rod (506) is provided inside the first driven bevel gear (3054), and the first driven bevel gear (3054) is connected to the spline rod (506) by the latch groove. The third gear (3056) is fixedly mounted on one side of the shaft frame (3055), and the third gear (3056) is meshed with the first gear ring (302). The third gear (3056) is driven to rotate by the rotating first gear ring (302). The rotating third gear (3056) drives the first driven bevel gear (3054) to move outside the spline rod (506) through the shaft frame (3055), thereby achieving the latch connection and unlocking of the first driven bevel gear (3054) and the spline rod (506), controlling the meshing connection and disengagement of the first driven bevel gear (3054) and the driving bevel gear (3053), and converting the transmission mode of the transmission conversion component (305); The driving assembly (304) is composed of a mounting frame (3041), a first servo motor (3042), a second servo motor (3043), and a first gear (3044), wherein the first servo motor (3042) and the second servo motor (3043) are both fixedly mounted on one side of the mounting frame (3041), and the second servo motor (3043) is located above the first servo motor (3042). The output ends of the first servo motor (3042) and the second servo motor (3043) are both equipped with a first gear (3044) via a shaft, and the first gear (3044) at the output end of the first servo motor (3042) is meshed and connected with the first gear ring (302), and the first gear (3044) at the output end of the second servo motor (3043) is meshed and connected with the second gear ring (303).

2. A screening jig for mineral processing according to claim 1, characterized in that: A material guide inclined plate (306) is equidistantly installed on the top of the outer side of the installation box (301) via a shaft. The first gear ring (302) and the second gear ring (303) are rotatably installed inside the installation box (301), and the second gear ring (303) is located above the first gear ring (302).

3. A screening jig for mineral processing according to claim 1, characterized in that: An annular water pipe (101) extending to the front is fixedly installed inside the discharge circular trough box (1), and the annular water pipe (101) is connected to the screening mechanism (2) via equally spaced pipes. A support frame (102) is fixedly installed at the bottom of the discharge circular trough box (1).

4. A screening jig for mineral processing according to claim 1, characterized in that: The screening mechanism (2) is composed of a chassis (201), a discharge pipe (202), a transmission device (203) and a screen (204), wherein the bottom of the screen (204) is movably connected to the support shaft (504) via a shaft bolt, the top of the discharge pipe (202) is transmission-connected to the bottom of the chassis (201) via a diaphragm, and the transmission device (203) is fixedly mounted on the top of the support frame (102) and is transmission-connected to the discharge pipe (202).

5. The screening jig for mineral processing according to claim 1, characterized in that: A feeding mechanism (4) extending to the top is installed inside the driving mechanism (3), and the bottom of the feeding mechanism (4) passes through the bottom of the discharge circular trough box (1).

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