A ore dressing shaking table equipped with a permanent magnet linear motor

Abstract

A mineral processing shaking table equipped with a permanent magnet linear motor. It includes a shaking table body, a permanent magnet linear motor, and a connecting mechanism connecting the shaking table body and the permanent magnet linear motor, wherein the connecting mechanism includes a cross slider connector and a screw sleeve connector connected to each other, wherein the cross slider connector is connected to the bed base and the rear end surface of the bed surface by bolts, and the screw sleeve connector is connected to the mover transmission rod by threads. The present invention controls the movement of the shaking table surface by controlling the movement of the permanent magnet linear motor mover, and changes the existing purely mechanical movement form of the shaking table into a controllable movement form under the control of a controller. The bed surface movement amplitude, movement cycle, and movement speed at each time point within the cycle are arbitrarily controllable, which facilitates the optimization of the stroke, stroke frequency, and continuous curve of the shaking table for different ore particle sizes, thereby improving the mineral processing separation rate and the mineral recovery rate.

Description

Technical Field

[0001] The invention belongs to the technical field of ore dressing shaking tables. Background Art

[0002] The existing ore dressing shaking table drives the bed surface to move by connecting the shaking table head to drive the asynchronous motor to achieve the purpose of ore dressing. The shaking table head is mostly a cam rocker arm type shaking table head or a cam lever type shaking table head. Through its structure, the circular motion of the motor is converted into a purely mechanical horizontal reciprocating motion, thereby driving the shaking table body to perform horizontal reciprocating motion.

[0003] Since the motion curve and motion cycle of the traditional shaking table are completely dependent on the structure of the shaking table head and the motor speed, once the ore dressing shaking table is installed, the motion curve and motion cycle of the shaking table are completely determined. Therefore, the shaking table motion parameters cannot be adjusted after installation, resulting in a single working condition of the shaking table, which is only suitable for specific types of ore and has low ore separation efficiency. If the motion curve needs to be changed, the shaking table head needs to be redesigned and installed, which is more complicated to implement and increases costs. Summary of the invention

[0004] The purpose of the present invention is to solve the problems that after the existing mineral processing shaking table is installed, the motion parameters of the shaking table cannot be adjusted, the working conditions are single and the separation efficiency is low. A mineral processing shaking table equipped with a permanent magnet linear motor is proposed, in which the bed motion amplitude, motion cycle and motion speed at each time point in the cycle can be arbitrarily controlled.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A mineral processing shaking table equipped with a permanent magnet linear motor comprises a shaking table body, a permanent magnet linear motor, and a connecting mechanism connecting the shaking table body and the permanent magnet linear motor, wherein:

[0007] The rocking bed body includes a bed base, a rocking bed slide rail, a damping structure and a bed surface. The bed base is bolted to the foundation, and two rocking bed slide rails parallel to each other are arranged on the top surface of the bed base. The bed surface is located at the top of the rocking bed body and is mounted on the slide rails by bolts. The bed surface and the bed base are also connected by a damping structure.

[0008] The permanent magnet linear motor comprises a base, a stator mounted on the base, a motor slide rail mounted on the top surface of the stator, and a mover mounted on the motor slide rail; the base is bolted to the foundation; the stator comprises a pole base and a permanent magnet arranged in the pole base, and the pole base is bolted to the base; two motor slide rails parallel to each other and arranged along the length direction of the stator are mounted on the top surface of the pole base; the mover comprises a mover core, a mover winding arranged in the mover core, and a mover transmission rod mounted on the rear end of the mover core, and the mover core is bolted to the motor slide rail; the motor slide rail is parallel to the rocking table slide rail;

[0009] The connection mechanism includes a bed pull rod, a cross slider connector, and a screw sleeve connector that are connected to each other. The cross slider connector is connected to the bed pull rod through bolts, the bed pull rod is connected to the bed surface through bolts, and the screw sleeve connector is connected to the mover transmission rod.

[0010] Furthermore, the cross slider connector includes a longitudinal slide rail seat, two longitudinal slide rails parallel to each other installed on the longitudinal slide rail seat, a transverse slide rail seat with a bottom mounted on the longitudinal slide rail and capable of reciprocating movement, two transverse slide rails parallel to each other installed on the transverse slide rail seat, a central pull rod mounted between the two transverse slide rails and capable of reciprocating movement along the transverse slide rails, longitudinal baffles respectively mounted at both ends of the longitudinal slide rails, and transverse baffles respectively mounted at both ends of the transverse slide rails; the screw sleeve connector is a threaded tube with internal threads, the outer end of the central pull rod has external threads and is threadedly connected to the screw sleeve and then locked with a locking nut; the mover transmission rod has external threads and is threadedly connected to the screw sleeve connector and then locked with a locking nut.

[0011] Furthermore, the bed surface pull rod includes an upright end plate and a towing bracket connected to the front end of the end plate, the longitudinal slide rail seat is fixedly mounted on the end plate by bolts, the end plate is connected to the end surface of the bed surface by bolts, the towing bracket is connected to the bottom surface of the bed surface by bolts, and the cross slider connector is firmly connected to the bed surface through the end plate and the support bracket.

[0012] The beneficial technical effects of the present invention are as follows:

[0013] 1. Compared with the existing mineral processing shaking table, the present invention uses a permanent magnet linear motor to replace the original asynchronous motor and the original cam bed head structure in the shaking table body. The bed surface is directly driven by the permanent magnet linear motor. There is no need to replace different bed heads according to different mineral processing requirements, and there is no need to repeatedly design, produce and test the bed head for a specific mineral processing requirement, thereby simplifying the shaking table structure.

[0014] 2. The movement of the shaking table is controlled by controlling the movement of the permanent magnet linear motor rotor, and the existing pure mechanical movement form of the shaking table is changed into a controllable movement form under the control of the controller. The bed movement amplitude, movement cycle and movement speed at each time point in the cycle can be arbitrarily controlled, which is convenient for optimizing the stroke, stroke frequency and continuous curve of the shaking table for different ore particle sizes, and quickly determining the optimal mineral processing scheme, so as to improve the mineral processing separation rate and ore recovery rate, which plays an important role in improving production efficiency, simplifying subsequent smelting processes, reducing the waste of useful ore materials, and saving energy and environmental protection, and has significant economic and environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the present invention;

[0016] Figure 2 yes Figure 1 A top view of

[0017] Figure 3 It is a schematic diagram of the structure of the shaking bed;

[0018] Figure 4 It is a schematic diagram of the structure of a permanent magnet linear motor;

[0019] Figure 5-1 , Figure 5-2 , Figure 5-3 They are respectively the front view, top view and right view schematic diagrams of the connecting mechanism connecting the shaking table body and the permanent magnet linear motor. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical solutions and advantages of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] A mineral processing shaking table equipped with a permanent magnet linear motor in the present invention is described as follows:

[0022] like Figure 1 , Figure 2 As shown, it includes a shaking table body, a permanent magnet linear motor, and a connecting mechanism connecting the shaking table body and the permanent magnet linear motor.

[0023] The shaking table body is as follows Figure 3 As shown, it includes a bed base 1-1, a rocking bed slide rail 1-2, a damping structure 1-3 and a bed surface 1-4. The bed base 1-1 is fastened to the foundation by bolts. There are two rocking bed slide rails 1-2 parallel to each other on the top surface of the bed base 1-1. The bed surface 1-4 is located at the top of the rocking bed body and is installed on the slide rail 1-2 by bolts. The bed surface 1-4 and the bed base 1-1 are also connected by the damping structure 1-3.

[0024] The permanent magnet linear motor is Figure 4As shown, it includes a base 2-1, a stator 2-2 installed on the base, a motor slide rail 2-3 installed on the top surface of the stator, and a mover 2-4 mounted on the motor slide rail. The base 2-1 is bolted to the foundation; the stator 2-2 includes a pole base 2-2-1 (yoke) and a permanent magnet 2-2-2 (pole) arranged in the pole base. The pole base is bolted to the base 2-1, and the permanent magnet is fixed to the yoke in the form of S and N alternating arrangements along the direction of the motor slide rail. Two motor rails 2-3 are installed on the top surface of the pole base and are arranged along the length direction of the stator and are parallel to each other; the mover 2-4 includes a mover core 2-4-1, a mover winding 2-4-2 arranged in the mover core, and a mover transmission rod 2-4-3 installed at the rear end of the mover core. The mover core 2-4-1 is installed on the motor rail 2-3 by bolts; the teeth of the mover core face downward, the yoke faces upward, the mover core slots are evenly distributed along the direction of the motor rail, the mover windings are placed in the mover core slots, one side of the mover is provided with a cable outlet for the transmission of electrical signals and control signals, and the other side is used for power output through the mover transmission rod 2-4-3. The movement of the mover is a controllable movement under the control of a frequency converter, and its movement amplitude, movement cycle and movement speed at each time point within the cycle can be arbitrarily controlled. The motor rail 2-3 is parallel to the rocking bed slide rail 1-2. During actual installation and use, there is an outer cover 2-5 on the stator and mover outer cover, such as Figure 1 , Figure 2 As shown, the mover transmission rod 2-4-3 passes through the outer cover and is connected to the threaded sleeve connector 3-2.

[0025] The cross slider connector 3-1 is connected to the bed surface 1-4 by bolts, the cross slider connector is connected to the screw sleeve connector 3-2, and the other end of the screw sleeve connector is connected to the mover transmission rod 2-4-3. Figure 5-1 , Figure 5-2 , Figure 5-3As shown, the connection mechanism includes a cross slider connector 3-1, a screw sleeve connector 3-2, and a bed surface pull rod 3-3 that are connected to each other; the cross slider connector 3-1 includes a longitudinal slide rail seat 3-1-1, two longitudinal slide rails 3-1-2 that are parallel to each other and are installed on the longitudinal slide rail seat, a transverse slide rail seat 3-1-3 that is reciprocatingly mounted on the longitudinal slide rail, two transverse slide rails 3-1-4 that are parallel to each other and are installed on the transverse slide rail seat, a center pull rod 3-1-5 that is mounted between the two transverse slide rails and can reciprocate along the transverse slide rails, longitudinal baffles 3-1-6 that are respectively installed at both ends of the longitudinal slide rails, and transverse baffles 3-1-7 that are respectively installed at both ends of the transverse slide rails. The screw sleeve connector 3-2 is a threaded tube with internal threads, and the outer end of the center pull rod 3-1-5 has external threads and is threadedly connected to the screw sleeve 3-2 and then locked with a locking nut. The bed surface pull rod 3-3 includes an upright end plate 3-3-1 and a towing frame 3-3-2 connected to the front end of the end plate, the longitudinal slide rail seat 3-1-1 is fixedly installed on the end plate 3-3-1 by bolts, the end plate 3-3-1 is connected to the end surface of the bed surface 1-4 by bolts, the towing frame 3-3-2 is connected to the bottom surface of the bed surface by bolts, and the cross slider connector 3-1 is firmly connected to the bed surface through the end plate and the towing frame. The mover transmission rod 2-4-3 has an external thread, which is threadedly connected to the screw sleeve connector 3-2 and then locked with a locking nut 3-4. The longitudinal slide rail and the transverse slide rail on the cross slider connector 3-1 form a cross-shaped slide rail, so that the pull rod 3-1-1 can move in the horizontal direction and the vertical direction, thereby ensuring the installation concentricity of the bed surface 1-4 and the mover 2-4 of the permanent magnet linear motor. The screw sleeve connector 3-2 is used to adjust the spacing between the bed surface 1-4 and the mover 2-4.

[0026] The shaking table surface 1-4 is connected with the mover 2-4 of the permanent magnet linear motor through the mover transmission rod 2-4-3. The mover directly drives the shaking table surface. The movement form of the table surface 1-4 is exactly the same as the operation form of the mover 2-4 of the permanent magnet linear motor. It is an arbitrarily controllable movement, which is convenient for optimizing the stroke, stroke frequency and continuous curve of the shaking table for different ore particle sizes, and quickly determining the optimal mineral processing plan.

[0027] The present invention can be realized by directly transforming the existing mineral processing shaking table, replacing the asynchronous motor used in the existing mineral processing shaking table with a permanent magnet linear motor, removing the original cam bed head structure in the shaking table body, and directly driving the bed surface with a permanent magnet linear motor. There is no need to replace different bed heads according to different mineral processing requirements, and there is no need to repeatedly design, produce and test the bed head for a specific mineral processing requirement, which simplifies the shaking table structure and has low transformation cost. The permanent magnet linear motor is a prior art component and can be directly purchased from the market.

[0028] The above is only one embodiment of the present invention. The scope of protection requested by the present invention is not limited to the embodiment. All technical solutions equivalent to this embodiment belong to the protection scope of the present invention.

Claims

1. A mineral processing shaking table equipped with a permanent magnet linear motor, characterized in that: The invention comprises a shaking table body, a permanent magnet linear motor, and a connecting mechanism connecting the shaking table body and the permanent magnet linear motor, wherein: The rocking bed body comprises a bed base (1-1), a rocking bed slide rail (1-2), a damping structure (1-3) and a bed surface (1-4); the bed base (1-1) is bolted to a foundation; the top surface of the bed base has two rocking bed slide rails (1-2) parallel to each other; the bed surface (1-4) is located at the top of the rocking bed body and is mounted on the slide rails by bolts; the bed surface (1-4) and the bed base (1-1) are also connected by the damping structure (1-3); The permanent magnet linear motor comprises a base (2-1), a stator (2-2) mounted on the base, a motor slide rail (2-3) mounted on the top surface of the stator, and a mover (2-4) mounted on the motor slide rail. The base (2-1) is bolted to the foundation. The stator (2-2) comprises a magnetic pole base (2-2-1) and a permanent magnet (2-2-2) arranged in the magnetic pole base. The magnetic pole base is bolted to the base (2-1). Two motor slide rails (2-3) are installed on the top surface of the pole base and are arranged along the length direction of the stator and are parallel to each other; the mover (2-4) comprises a mover iron core (2-4-1), a mover winding (2-4-2) arranged in the mover iron core, and a mover transmission rod (2-4-3) installed at the rear end of the mover iron core; the mover iron core (2-4-1) is installed on the motor slide rail (2-3) by bolts; the motor slide rail (2-3) and the rocking table slide rail (1-2) are parallel to each other; The connection mechanism comprises a bed surface pull rod (3-3), a cross slider connector (3-1), and a screw sleeve connector (3-2) which are connected to each other; the cross slider connector (3-1) is connected to the bed surface pull rod (3-3) via bolts; the bed surface pull rod is connected to the bed surface (1-4) via bolts; and the screw sleeve connector (3-2) is connected to the mover transmission rod (2-4-3); The cross slide connector (3-1) comprises a longitudinal slide rail seat (3-1-1), two longitudinal slide rails (3-1-2) mounted on the longitudinal slide rail seat and parallel to each other, a transverse slide rail seat (3-1-3) whose bottom is mounted on the longitudinal slide rail and can move back and forth, two transverse slide rails (3-1-4) mounted on the transverse slide rail seat and parallel to each other, a central pull rod (3-1-5) mounted between the two transverse slide rails and can move back and forth along the transverse slide rails, longitudinal baffles (3-1-6) respectively mounted on both ends of the longitudinal slide rail, and transverse baffles (3-1-7) respectively mounted on both ends of the transverse slide rail.

2. The ore dressing shaking table equipped with a permanent magnet linear motor according to claim 1, characterized in that: The threaded sleeve connector (3-2) is a threaded tube with internal threads; the outer end of the central pull rod (3-1-5) has external threads and is threadedly connected to the threaded sleeve connector (3-2) and then locked with a locking nut; the mover transmission rod (2-4-3) has external threads and is threadedly connected to the threaded sleeve connector (3-2) and then locked with a locking nut.

3. The ore dressing shaking table equipped with a permanent magnet linear motor according to claim 2, characterized in that: The bed surface pull rod (3-3) comprises an upright end plate (3-3-1) and a towing bracket (3-3-2) connected to the front end of the end plate, the longitudinal slide rail seat (3-1-1) is fixedly mounted on the end plate (3-3-1) by bolts, the end plate (3-3-1) is connected to the end surface of the bed surface (1-4) by bolts, the towing bracket (3-3-2) is connected to the bottom surface of the bed surface by bolts, and the cross slider connector (3-1) is firmly connected to the bed surface (1-4) by the end plate and the towing bracket.

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