Screening jigger for mineral separation

Abstract

The invention relates to the technical field of jiggers, and discloses a screening jigger for mineral separation, which comprises a discharging circular groove box, a driving mechanism and a bed layer adjusting mechanism, screening mechanisms are annularly mounted on the outer side of the driving mechanism at equal intervals, and the bed layer adjusting mechanism is mounted in the screening mechanisms through sliding chutes; the bed layer adjusting 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. According to the technical scheme, the screen is driven to do lifting movement and angle inclination adjustment through the synergistic effect of the driving mechanism and the bed layer adjusting mechanism, the height of an overflow weir between the machine box and the discharging circular groove box is adjusted by lifting and moving the screen, and the thickness of the bed layer is controlled by adjusting the height of the overflow weir; and the horizontal moving speed of the bed layer is controlled by adjusting the angle inclination of the screen, so that the thickness and the horizontal moving speed of the bed layer can be flexibly adjusted according to the characteristics of different ores and the change of the handling capacity.

Description

Technical Field

[0001] The present invention relates to the technical field of jigging machines, and in particular to a screening jig for ore dressing. Background Art

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

[0003] A fine ore screening device for tungsten ore processing with the publication number of CN115555251A has solved the technical drawbacks of being inconvenient for secondary screening of tungsten ore and cleaning the accumulated fine tungsten ore. However, there are still many defects in similar structures during actual use. For example, in the ore dressing process of existing screening jigs, the bed layer thickness cannot be controlled, and it cannot adapt to the changing requirements of different ore characteristics or processing volumes. If the bed layer is too thick, it will lead to insufficient looseness, exacerbate bed layer blockage, cause poor water flow, and poor stratification effect; if the bed layer is too thin, it will cause an increase in screening loss or bed layer disorder, thereby affecting the ore dressing effect.

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

[0005] In order to overcome the deficiencies of the prior art, the present invention proposes a screening jig for ore dressing to solve the problems that the bed layer thickness cannot be controlled, it cannot adapt to the changing requirements of different ore characteristics or processing volumes, if the bed layer is too thick, it will lead to insufficient looseness, exacerbate bed layer blockage, cause poor water flow, and poor stratification effect; if the bed layer is too thin, it will cause an increase in screening loss or bed layer disorder, thereby affecting the ore dressing effect.

[0006] To solve the above technical problems, the basic technical solution proposed by the present invention is as follows:

[0007] A screening jig for mineral processing, comprising a discharge circular trough box, a driving mechanism and a bed adjustment mechanism, wherein a screening mechanism is equidistantly installed in an annular manner on the outer side of the driving mechanism, wherein the screening mechanism comprises a movably installed screen, wherein a bed adjustment mechanism is installed inside the screening mechanism through a slide slot, and one end of the bed adjustment mechanism extends into the interior of the driving mechanism, wherein the bed adjustment mechanism is composed of a threaded tube, a threaded rod, a thread sleeve, a supporting shaft rod, a second driven bevel gear and a spline rod; wherein the driving mechanism is composed of an installation box, a first gear ring, a second gear ring, a driving assembly and a transmission conversion assembly, wherein the transmission conversion assembly is equidistantly distributed in an annular manner inside the installation box, the driving assembly provides power for 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 angle tilt of the screen.

[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 to be 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 and connected with the second gear ring, the bottom sides of the driving bevel gear are respectively meshed and connected 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. A latching groove corresponding to the spline rod is provided inside the movable bevel gear, and the first driven bevel gear is connected to the spline rod latch through the latching groove. The third gear is fixedly mounted on one side of the shaft frame, and the third gear is meshingly connected to 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 outside the spline rod through the shaft frame, thereby realizing the connection and unlocking of the first driven bevel gear and the spline rod latch, controlling the meshing connection and disengagement of the first driven bevel gear and the active bevel gear, and converting the transmission mode of the transmission conversion component.

[0011] Preferably, the driving 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 meshedly connected to the first gear ring, and the first gear at the output end of the second servo motor is meshedly connected to the second gear ring.

[0012] Preferably, a material guide inclined plate is equidistantly mounted on the top of the outer side of the installation box through a shaft, and 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 penetrating to the front is fixedly installed inside the discharge circular trough box, and the annular water pipe is connected to the screening mechanism through equidistantly 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 supporting shaft through an axle 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 through the interior of 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 under the coordinated action of a driving mechanism and a bed adjustment mechanism, adjusts the overflow weir height between the chassis and the discharge trough box by lifting and moving the screen, controls the bed thickness by adjusting the overflow weir height, and facilitates flexible adjustment of the bed thickness according to changes in different ore characteristics and processing volumes by controlling the bed thickness, so as to balance the material stratification efficiency and screening loss; controls the horizontal movement speed of the bed by adjusting the angle of the screen, and flexibly adjusts the horizontal movement speed of the layer according to changes in different ore characteristics and processing volumes, so as to avoid bed accumulation and screening loss; specifically, drives the first gear ring and the second gear ring to rotate by a driving component, controls the rotation of the threaded tube and the threaded rod by a transmission conversion component, and then causes the thread sleeve to drive the support shaft rod to flip, adjusts the vertical position and tilt angle of the screen, thereby dynamically adjusting the bed thickness and horizontal movement speed to meet the needs of different ore characteristics and processing volumes, and improves the mineral processing efficiency and particle size classification accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

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

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

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

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

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

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

[0028] Figure 11 Schematic diagram of the unfolded transmission conversion component in the present invention;

[0029] Figure 12 Schematic diagram of the structure of the feeding mechanism in the present invention.

[0030] Description of the reference numerals: 1. Discharge circular groove box; 101. Annular water pipe; 102. Support frame; 2. Screening mechanism; 201. Machine box; 202. Discharge pipe; 203. Transmission device; 204. Screen; 3. Driving mechanism; 301. Installation box; 302. First toothed ring; 303. Second toothed ring; 304. Driving component; 3041. Installation frame; 3042. First servo motor; 3043. Second servo motor; 3044. First gear; 305. Transmission conversion component; 3051. Bearing frame; 3052. Second gear; 3053. Active bevel gear; 3054. First driven bevel gear; 3055. Shaft frame; 3056. Third gear; 306. Guide chute; 4. Feeding mechanism; 5. Bed layer adjustment mechanism; 501. Threaded pipe; 502. Threaded rod; 503. Threaded sleeve; 504. Support shaft rod; 505. Second driven bevel gear; 506. Spline rod. Specific Embodiments

[0031] The following will combine the attached Figure 1 to the attached Figure 12 to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0032] A screening jig for ore dressing, comprising a discharge circular trough box 1, a driving mechanism 3 and a bed layer adjusting mechanism 5. A screening mechanism 2 is annularly and equidistantly installed outside the driving mechanism 3. The screening mechanism 2 includes a movably installed screen 204. The bed layer adjusting mechanism 5 is installed inside the screening mechanism 2 through a chute, and one end of the bed layer adjusting mechanism 5 extends into the driving mechanism 3. The bed layer adjusting mechanism 5 is composed of a threaded pipe 501, a threaded rod 502, a wire sleeve 503, a support shaft rod 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 tooth ring 302, a second tooth ring 303, a driving component 304 and a transmission conversion component 305. Among them, the transmission conversion components 305 are annularly and equidistantly distributed inside the installation box 301. The driving component 304 provides power for the first tooth ring 302 and the second tooth ring 303, and the first tooth ring 302 and the second tooth ring 303 are in transmission connection with the bed layer adjusting mechanism 5;

[0033] It should be noted that the discharging circular groove box 1 is mainly used to collect and discharge the screened ore. The driving mechanism 3 is responsible for providing the overall working power, and the power transmission and conversion are realized through the mounting box 301, the first gear ring 302, the second gear ring 303, the driving component 304 and the transmission conversion component 305. The bed layer adjusting mechanism 5 adjusts the thickness or angle of the screen 204 through the coordinated action of the threaded pipe 501, the threaded rod 502, the wire sleeve 503, the support shaft rod 504, the second driven bevel gear 505 and the spline rod 506, thereby affecting the thickness or the horizontal moving speed of the bed layer. The screening mechanism 2 is the main execution unit for the screening function. The internal screen 204 can perform lifting movement and angle inclination adjustment under the action of the driving mechanism 3 and the bed layer adjusting mechanism 5, so as to effectively separate 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 pipe 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 engaged gear mechanism, and then adjust the connection state between the spline rod 506 and the threaded pipe 501 and the threaded rod 502, so that the screen 204 can be adjusted vertically inside the chassis 201. The transmission conversion component 305 transmits power through different transmission paths in different modes.

[0034] Through the transmission conversion component 305, the driving mode of the bed layer adjusting mechanism 5 can be converted, so that the bed layer adjusting mechanism 5 has a layer thickness adjusting mode and an angle adjusting mode. The layer thickness adjusting mode drives the screen 204 to perform lifting movement, and adjusts the bed layer thickness by the lifting of the screen 204. The angle adjusting mode drives the screen 204 to perform angle inclination adjustment, and adjusts the bed layer horizontal moving speed by the angle inclination adjustment of the screen 204.

[0035] It should be noted that the second driven bevel gear 505 is always meshed with the driving bevel gear 3053 in the transmission conversion assembly 305, while the first driven bevel gear 3054 in the transmission conversion assembly 305 is meshed or disengaged from the driving bevel gear 3053 according to the mode requirements; in the layer thickness adjustment mode: First, the driving assembly 304 drives the first toothed ring 302 to rotate slightly forward. The forward-rotating first toothed ring 302 drives the transmission conversion assembly 305 to be in pin transmission connection with the spline rod 506. Specifically, the first servo motor 3042 is energized to drive the first gear 3044 to rotate forward. The forward-rotating first gear 3044 drives the first toothed ring 302 to rotate slightly forward. The slightly forward-rotating first toothed ring 302 drives the shaft frame 3055 to make a forward swinging rotation movement through the meshed third gear 3056. The forward swinging rotation movement of the shaft frame 3055 drives the first driven bevel gear 3054 to make a linear movement outside the spline rod 506 through the cooperation of the chute and the slider, so that the first driven bevel gear 3054 moves to the outside of the spline rod 506, realizing the pin transmission connection between the first driven bevel gear 3054 and the outside of the spline rod 506. 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 driving assembly 304 drives the second toothed ring 303 to rotate. The rotating second toothed ring 303 drives the transmission conversion assembly 305 to operate. The driving bevel gear 3053 in the transmission conversion assembly 305 is used to drive the meshed first driven bevel gear 3054 and the second driven bevel gear 505 to rotate simultaneously. 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, achieving the purpose of driving the threaded tube 501 and the threaded rod 502 simultaneously; Finally, the synchronously rotating threaded tube 501 and the threaded rod 502 respectively drive the relatively sleeved wire sleeves 503 to make relative linear movements. The two relatively linearly moving wire sleeves 503 respectively drive the support shaft rods 504 to turn over. The synchronously turned-over support shaft rods 504 adjust 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 overflow weir height between the chassis 201 and the discharge circular groove box 1 is adjusted. By adjusting the overflow weir height, the bed layer thickness is controlled, the material stratification efficiency and the screen penetration loss are balanced, the particle size classification accuracy and the ore dressing efficiency are improved, and it is convenient to flexibly adjust the bed layer thickness according to the changes in different ore characteristics and processing capacities;

[0036] When switching to the angle adjustment mode, the first toothed ring 302 is driven by the driving component 304 to rotate slightly in the reverse direction. Driving the first toothed ring 302 to rotate slightly in the reverse direction drives the transmission conversion component 305. Specifically, the first servo motor 3042 is energized to operate to drive the first gear 3044 to rotate in the reverse direction. The first gear 3044 rotating in the reverse direction drives the first toothed ring 302 to perform a small-amplitude reverse self-rotation. The first toothed ring 302 performing a small-amplitude reverse self-rotation drives the shaft frame 3055 to perform a reverse swing rotation movement through the meshing-connected third gear 3056. The shaft frame 3055 performing a reverse swing rotation movement drives the first driven bevel gear 3054 to perform a linear movement outside the spline rod 506 through the cooperation of the chute and the slider, so that the first driven bevel gear 3054 moves away from the spline rod 506, achieving the purpose of disconnecting the pin connection between the spline rod 506 and the spline rod 506. At this time, the first driven bevel gear 3054 disengages from the driving bevel gear 3053; when enabling the transmission conversion component 305 to only transmit to the second driven bevel gear 505, the driving component 304 drives the transmission conversion component 305 to operate. The operating transmission conversion component 305 drives the second driven bevel gear 505 to rotate. The rotating second driven bevel gear 505 drives the support shaft rod 504 to flip through the cooperation of the threaded tube 501 and the outer wire sleeve 503. The flipped support shaft rod 504 drives one side of the screen 204 to flip and adjust the inclination angle with the other support shaft rod 504 as the axis. The inclination angle of the screen 204 affects the horizontal movement of the ore. Therefore, by adjusting the inclination angle of the screen 204, the horizontal movement speed of the bed layer can be controlled, facilitating flexible adjustment of the horizontal movement speed of the layer according to different ore characteristics and changes in the processing volume, avoiding bed layer accumulation, and preventing screen penetration loss.

[0037] As Figures 9 to 11 shown, a second driven bevel gear 505 is fixedly installed at one end of the threaded tube 501, a spline rod 506 is fixedly installed at one end of the threaded rod 502. The spline rod 506 penetrates through the inside of the threaded tube 501 and extends into the transmission conversion component 305 to be rotationally connected with the transmission conversion component 305. The outer sides of the threaded tube 501 and the threaded rod 502 are both sleeved with a wire sleeve 503. The top of the wire sleeve 503 is installed with a support shaft rod 504 through a shaft bolt;

[0038] It should be noted that the second driven bevel gear 505 transmits the rotational motion of the transmission conversion assembly 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 in threaded fit, driving the support shaft rod 504 to make a flipping motion. The flipping motion of the support shaft rod 504 is used to drive the screen 204 to make an inclined angle, and the spline rod 506 is connected to the transmission conversion assembly 305 by a snap pin to drive the threaded rod 502 to rotate. The rotating threaded rod 502 converts the rotational motion into linear motion through the threaded sleeve 503 in threaded fit, driving the support shaft rod 504 to make a flipping motion. When the threaded tube 501 and the threaded rod 502 rotate synchronously, the two flipping motion support shaft rods 504 drive the screen 204 to move up and down.

[0039] As Figures 10 to 11 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. Among them, the second gear 3052 is meshed and connected with the second gear ring 303. The two sides of the bottom of the driving bevel gear 3053 are respectively meshed and connected with the first driven bevel gear 3054 and the second driven bevel gear 505. The driving bevel gear 3053 is rotatably installed inside the bearing frame 3051. The bottom of the second gear 3052 is fixedly installed on the top of the driving bevel gear 3053 through a shaft rod. The first driven bevel gear 3054 is movably installed inside the installation box 301 through the shaft frame 3055, and the first driven bevel gear 3054 is movably sleeved outside the spline rod 506. A snap pin groove corresponding to the spline rod 506 is provided inside the first driven bevel gear 3054. The first driven bevel gear 3054 is continuously snap-connected with the spline rod 506 through the snap pin groove. The third gear 3056 is fixedly installed on one side of the shaft frame 3055, and the third gear 3056 is meshed and connected with the first gear ring 302; by driving the third gear 3056 to rotate through 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, so as to realize the continuous snap connection and unlocking of the first driven bevel gear 3054 and the spline rod 506, and also control the meshing connection and disengagement of the first driven bevel gear 3054 and the driving bevel gear 3053, and convert the transmission mode of the transmission conversion assembly 305;

[0040] It should be noted that the bearing frame 3051 provides support to ensure that the driving bevel gear 3053 can rotate smoothly. The second gear 3052 transmits the rotational power through the meshing connection with the second gear ring 303; the driving 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 to achieve multi-stage gear transmission; by Figure 10 、 Figure 11It can be seen that a chute is provided inside the axle support 3055, and a slider corresponding to the chute is arranged on the outer side of the first driven bevel gear 3054. The slider extends into the chute and is movably connected to the chute. The axle support 3055 is drivingly connected to the first driven bevel gear 3054 through the chute and the slider. When the axle support 3055 swings and rotates, the axle support 3055 drives the first driven bevel gear 3054 to move on the spline rod 506 through the cooperation of the chute and the slider. The moving first driven bevel gear 3054 realizes pin connection and unlocking with the spline rod 506 through the pin slot, and at the same time realizes meshing connection or disengagement of the first driven bevel gear 3054 and the driving bevel gear 3053, thereby changing the working mode of the transmission conversion assembly 305.

[0041] As Figure 9 As shown in the figure, 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. Among them, the first servo motor 3042 and the second servo motor 3043 are both fixedly installed 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 through a shaft rod, and the first gear 3044 at the output end of the first servo motor 3042 is meshingly connected to the first toothed ring 302, and the first gear 3044 at the output end of the second servo motor 3043 is meshingly connected to the second toothed ring 303;

[0042] 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 driving assembly 304. Among them, the first servo motor 3042 is meshingly connected to the first toothed ring 302 through its first gear 3044 to realize the driving of the first toothed ring 302; the second servo motor 3043 is meshingly connected to the second toothed ring 303 through its first gear 3044 to realize the driving of the second toothed ring 303; precisely control and drive the first gear 3044 and the second toothed ring 303 to perform independent rotational movements.

[0043] As Figures 7 to 8 As shown in the figure, the top of the outer side of the installation box 301 is equidistantly installed with a material guiding inclined plate 306 through shaft parts. The first toothed ring 302 and the second toothed ring 303 are rotatably installed inside the installation box 301, and the second toothed ring 303 is located above the first toothed ring 302;

[0044] It should be noted that the material guiding inclined plate 306 rotates on the top of the outer side of the installation box 301 through shaft parts, and the bottom end of the material guiding inclined plate 306 is always in contact with the top surface of the screen 204, and flips and moves following the lifting movement and angle adjustment of the screen 204, which is convenient for guiding the materials conveyed by the feeding mechanism 4 onto the screen 204.

[0045] AsFigures 2 to 4 As shown in the figure, an annular water pipe 101 penetrating to the front is fixedly installed inside the discharging circular groove box 1, and the annular water pipe 101 is connected to the screening mechanism 2 through pipes distributed at equal intervals. A support frame 102 is fixedly installed at the bottom of the discharging circular groove box 1;

[0046] It should be noted that a PLC controller is fixedly installed on the front of the discharging circular groove 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 is convenient for controlling the operation of the device. The water source is distributed to multiple screening mechanisms 2 through the annular water pipe 101 to provide upward water flow for material screening in the screening mechanism 2; The support frame 102 is used to fix and support the discharging circular groove box 1 to ensure its stability and reliability.

[0047] As Figure 6 shown, the screening mechanism 2 is composed of a machine box 201, a discharging pipe 202, a transmission device 203 and a screen 204. The bottom of the screen 204 is movably connected to the support shaft rod 504 through a shaft bolt. The top of the discharging pipe 202 is connected to the bottom of the machine box 201 through a diaphragm. The transmission device 203 is fixedly installed on the top of the support frame 102 and is in transmission connection with the discharging pipe 202;

[0048] It should be noted that the transmission device 203 drives the machine box 201 to vibrate at high frequency through the discharging pipe 202. The high-frequency vibrating machine box 201 drives the screen 204 to vibrate. The cooperation between the vibrating screen 204 and the upward water flow provided by the annular water pipe 101 realizes the efficient screening of materials.

[0049] As Figures 1 to 5 and Figure 12 shown, a feeding mechanism 4 penetrating to the top is installed inside the driving mechanism 3, and the bottom of the feeding mechanism 4 penetrates to the bottom of the discharging circular groove box 1;

[0050] It should be noted that a material distribution cover is arranged at the top of the feeding mechanism 4. The feeding mechanism 4 sends the material from the bottom to the top, and distributes the material to the inside of multiple screening mechanisms 2 through the material distribution cover at the top of the feeding mechanism 4.

[0051] According to the explanations and teachings of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above. Some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A screening jig for ore dressing, comprising a discharge circular trough box (1), a driving mechanism (3) and a bed layer adjusting mechanism (5), characterized in that, The screening mechanism (2) is installed annularly and equidistantly on the outside of the driving mechanism (3). The screening mechanism (2) includes a movably installed screen mesh (204). The internal part of the screening mechanism (2) is provided with a bed layer adjusting mechanism (5) through a chute, and one end of the bed layer adjusting mechanism (5) extends into the driving mechanism (3). The bed layer adjusting mechanism (5) is composed of a threaded pipe (501), a threaded rod (502), a wire sleeve (503), a support shaft rod (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 tooth ring (302), a second tooth ring (303), a driving component (304) and a transmission conversion component (305). Among them, the transmission conversion components (305) are annularly and equidistantly distributed inside the installation box (301). The driving component (304) provides power for the first tooth ring (302) and the second tooth ring (303), and the first tooth ring (302) and the second tooth ring (303) are in transmission connection with the bed layer adjusting mechanism (5); Through the transmission conversion component (305), the driving mode of the bed layer adjusting mechanism (5) can be converted, so that the bed layer adjusting mechanism (5) has a layer thickness adjusting mode and an angle adjusting mode. The layer thickness adjusting mode drives the screen mesh (204) to move up and down, and the bed layer thickness is adjusted by the up and down movement of the screen mesh (204). The angle adjusting mode drives the screen mesh (204) to make an angle inclination adjustment, and the bed layer horizontal movement speed is adjusted by the angle inclination adjustment of the screen mesh (204).

2. The screening jig for ore dressing according to claim 1, wherein: One end of the threaded pipe (501) is fixedly installed with a second driven bevel gear (505). One end of the threaded rod (502) is fixedly installed with a spline rod (506). The spline rod (506) penetrates through the inside of the threaded pipe (501) and extends into the transmission conversion component (305) to be rotatably connected with the transmission conversion component (305). The outer sides of the threaded pipe (501) and the threaded rod (502) are both sleeved with wire sleeves (503). The top of the wire sleeve (503) is installed with a support shaft rod (504) through a bolt.

3. The screening jig for ore dressing according to claim 2, wherein: The transmission conversion assembly (305) consists of a bearing bracket (3051), a second gear (3052), a driving bevel gear (3053), a first driven bevel gear (3054), a shaft bracket (3055) and a third gear (3056). Among them, the second gear (3052) is meshed and connected with the second gear ring (303), and both sides of the bottom of the driving bevel gear (3053) are meshed and connected with the first driven bevel gear (3054) and the second driven bevel gear (505) respectively. The driving bevel gear (3053) is rotatably installed inside the bearing bracket (3051). The bottom of the second gear (3052) is fixedly installed at the top of the driving bevel gear (3053) through a shaft rod. The first driven bevel gear (3054) is movably installed inside the installation box (301) through the shaft bracket (3055), and the first driven bevel gear (3054) is movably sleeved outside the spline rod (506). A pin slot corresponding to the spline rod (506) is formed inside the first driven bevel gear (3054). The first driven bevel gear (3054) is continuously locked with the spline rod (506) through the pin slot. The third gear (3056) is fixedly installed on one side of the shaft bracket (3055), and the third gear (3056) is meshed and connected with the first gear ring (302). By driving the third gear (3056) to rotate through 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 bracket (3055), so as to realize the continuous locking and unlocking of the first driven bevel gear (3054) and the spline rod (506), control the meshing connection and disengagement of the first driven bevel gear (3054) and the driving bevel gear (3053), and convert the transmission mode of the transmission conversion assembly (305).

4. A screening jig for ore dressing according to claim 1, characterized in that: The driving assembly (304) consists of a mounting bracket (3041), a first servo motor (3042), a second servo motor (3043) and a first gear (3044). Among them, the first servo motor (3042) and the second servo motor (3043) are both fixedly installed on one side of the mounting bracket (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 installed with a first gear (3044) through a shaft rod, 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).

5. A screening jig for ore dressing according to claim 1, characterized in that: Guide chute plates (306) are equidistantly installed on the top of the outside of the installation box (301) through shaft parts. 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).

6. A screening jig for ore dressing according to claim 1, characterized in that: An annular water pipe (101) penetrating to the front is fixedly installed inside the discharging circular groove box (1), and the annular water pipe (101) is connected to the screening mechanism (2) through pipes distributed at equal intervals. A support frame (102) is fixedly installed at the bottom of the discharging circular groove box (1).

7. The screening jig for ore dressing according to claim 6, wherein: The screening mechanism (2) consists of a machine box (201), a discharging pipe (202), a transmission device (203) and a screen (204). The bottom of the screen (204) is movably connected to a support shaft rod (504) through a shaft bolt. The top of the discharging pipe (202) is connected to the bottom of the machine box (201) through a diaphragm. The transmission device (203) is fixedly installed on the top of the support frame (102) and is connected to the discharging pipe (202) for transmission.

8. The screening jig for ore dressing according to claim 1, characterized in that: A feeding mechanism (4) extending to the top is installed through the inside of the driving mechanism (3), and the bottom of the feeding mechanism (4) penetrates to the bottom of the discharging circular groove box (1).

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