Automatic table surface gradient adjusting device of concentrating table

Abstract

The utility model discloses an automatic table surface gradient adjusting device of a concentrating table, which comprises a driving device and two table surface supporting mechanisms which are respectively arranged at the bottoms of two ends of a table surface. The table surface supporting mechanism comprises a box seat, a first gear, a second gear, a swing seat and a table surface supporting plate, an arc-shaped sliding groove is fixedly formed in the box seat, the arc-shaped sliding groove and an output shaft of the table transmission box are coaxial, a sliding curved surface matched with the arc-shaped sliding groove is arranged at the bottom of the swing seat, and the swing seat slides through the sliding curved surface and is supported on the arc-shaped sliding groove; the bed surface supporting plate is connected to the upper portion of the swing seat and used for being connected with and supporting a bed surface, the first gear is fixed to the bottom of the swing seat and coaxial with an output shaft of the shaking table transmission box, the second gears are rotationally connected to the box seat and meshed with the first gears, and the driving device is connected with the second gears and used for synchronously driving the two second gears to rotate. The transverse slope adjusting device can replace manual work, and the transverse slope of the table surface of the concentrating table can be accurately adjusted.

Description

Technical Field

[0001] This utility model relates to the field of mineral processing equipment technology, and in particular to an automatic adjustment device for the slope of a mineral processing shaking table. Background Technology

[0002] The shaking table is a widely used gravity separation device and a key piece of equipment for the beneficiation of ores such as tungsten, tin, tantalum, niobium, and titanium. The shaking table consists of a headstock, feed trough, water trough, table surface, slope adjustment mechanism, lubrication system, and motor.

[0003] The working principle of a shaking table is as follows: mineral particle separation is completed on a grooved shaking table surface at a certain transverse angle. Mineral particles are fed into the table from the feed trough, while transverse flushing water is supplied from the water trough. Under the influence of gravity, the force of the transverse water flow, the inertia generated by the reciprocating asymmetrical motion of the table surface, as well as the friction of the table surface and the transverse flushing water flow, the mineral particles are separated into layers and bands according to their specific gravity, and move longitudinally and laterally along the table surface. Tailings, middlings, and concentrate bands gradually form on the table surface. According to different mineral bands, they fall into different troughs distributed on the side of the table surface, forming concentrate, middlings, and tailings. To ensure the normal operation of the shaking table and the effective separation of light and heavy minerals, the table surface must be tilted at a certain angle in the transverse direction. The transverse tilt angle of the table surface determines the shape of the mineral bands and the position of the bands of minerals with different specific gravities. The adjustment and control of the transverse tilt angle of the table surface is crucial to the separation efficiency of the shaking table.

[0004] Because the properties of minerals change during production, achieving better separation results requires adjusting the bed slope according to the different characteristics of the minerals. If operators cannot accurately and promptly adjust the bed slope when mineral particle size and grade change, fluctuations in beneficiation indicators can easily occur. Currently, the slope of the shaking table is adjusted manually by the operator rotating two handwheels on the two side seats below the table. The accuracy of the shaking table slope adjustment is easily affected by the operator's experience and sense of responsibility. Furthermore, the two slope adjustment mechanisms under each shaking table can only be adjusted manually one by one, making it difficult to guarantee the accuracy and timeliness of the adjustment, easily causing fluctuations in production indicators, and resulting in high labor intensity for workers. To address the problems of insufficient accuracy, untimely adjustment, and high labor intensity of manual bed slope adjustment in existing technologies, there is an urgent need to develop a slope adjustment device that can achieve automatic and precise adjustment of the shaking table bed slope. Utility Model Content

[0005] The purpose of this invention is to provide an automatic slope adjustment device for a mineral processing shaking table, so as to solve the problems existing in the prior art. It can replace manual labor and realize the automatic and accurate adjustment of the transverse slope of the mineral processing shaking table.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides an automatic slope adjustment device for a mineral processing shaking table, including a drive device and a table support mechanism. Two table support mechanisms are provided, respectively located at the bottom of both ends of the table surface. Each table support mechanism includes a base, a first gear, a second gear, a swing seat, and a table support plate. An arc-shaped groove is fixedly provided on the base, and the arc-shaped groove is coaxial with the output shaft of the shaking table transmission box. The bottom of the swing seat has a sliding surface that cooperates with the arc-shaped groove. The swing seat slides through the sliding surface and is supported on the arc-shaped groove. The table support plate is connected to the upper part of the swing seat to connect and support the table surface. The first gear is fixed to the bottom of the swing seat and is coaxial with the output shaft of the shaking table transmission box. The second gear is rotatably connected to the base and meshes with the first gear. The drive device is connected to the second gear to synchronously drive the two second gears to rotate.

[0008] Preferably, the driving device includes a servo motor and a reducer. The servo motor is connected to the reducer, and a transmission shaft is fixedly connected to each end of the output shaft of the reducer. The transmission shaft is connected to the gear shaft of the second gear through a coupling.

[0009] Preferably, the device also includes a controller, and the swing seat is equipped with an angle sensor. The angle sensor and the servo motor are electrically connected to the controller.

[0010] Preferably, the drive device is disposed between the two bed support mechanisms.

[0011] Preferably, the first gear is fixed to the swing seat via a flange structure and bolts.

[0012] Preferably, each side of the housing is fixed with one of the arc-shaped grooves.

[0013] Preferably, the first gear is disposed between the two arc-shaped grooves.

[0014] Preferably, the connection between the bed support plate and the swing seat and the bed surface is a joint hinge connection.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] The automatic slope adjustment device for the mineral processing shaking table provided by this utility model can synchronously drive two second gears to rotate through the drive device, thereby causing the swing seats to swing along the arc-shaped slide groove with the output shaft of the shaking table transmission box as the rotation center. There is no need for manual operation of the handwheel. It can timely and synchronously adjust the angle of the two swing seats accurately, thereby realizing the automatic, fast and accurate adjustment of the transverse slope of the mineral processing shaking table. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a mineral processing shaking table;

[0019] Figure 2 This is a front view illustrating the principle of the automatic slope adjustment device for the mineral processing shaking table in this embodiment of the present invention.

[0020] Figure 3 This is a left view illustrating the principle of the automatic slope adjustment device for the mineral processing shaking table in this embodiment of the invention.

[0021] Figure 4 This is a schematic diagram of the automatic slope adjustment device for the mineral processing shaking table in this embodiment of the present invention.

[0022] In the diagram: 101-Automatic bed slope adjustment device, 102-Transmission box, 1-Servo motor, 2-Reducer, 3-Transmission shaft, 4-Coupling, 5-Second gear, 6-First gear, 7-Bearing, 8-Box base, 9-Swing seat, 10-Angle sensor, 11-Bed surface, 12-Bed surface support plate, 13-Connecting bolt, 14-Arc-shaped slide groove, 15-Sliding curved surface, 16-Shaking table base. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The purpose of this invention is to provide an automatic slope adjustment device for a mineral processing shaking table, which solves the problems existing in the prior art, can replace manual labor, and realizes automatic and accurate adjustment of the transverse slope of the mineral processing shaking table.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1-4 As shown, this embodiment provides an automatic slope adjustment device 101 for a mineral processing shaking table, including a drive device and a table support mechanism. Two table support mechanisms are provided, respectively located at the bottom of both ends of the table 11. Each table support mechanism includes a base 8, a first gear 6, a second gear 5, a swing seat 9, and a table support plate 12. An arc-shaped groove 14 is fixedly provided on the base 8, and the arc-shaped groove 14 is coaxial with the output shaft of the shaking table transmission box 102. The bottom of the swing seat 9 is provided with a sliding surface 15 that cooperates with the arc-shaped groove 14. The swing seat 9 slides through the sliding surface 15 and is supported on the arc-shaped groove 14. The table support plate 12 is connected to the upper part of the swing seat 9 to connect and support the table 11. The first gear 6 is fixed to the bottom of the swing seat 9, and the first gear 6 is coaxial with the output shaft of the shaking table transmission box 102. The second gear 5 is rotatably connected to the base 8 through a bearing 7 and meshes with the first gear 6. The drive device is connected to the second gear 5 to synchronously drive the two second gears 5 to rotate.

[0027] In this embodiment, the drive device is positioned between the two bed support mechanisms. Both housings 8 and the drive device are fixedly mounted on the rocker base 16. The first gear 6 is fixed to the swing seat 9 via a flange structure and connecting bolts 13. The first gear 6 is a segment of an arc-shaped gear. An arc-shaped groove 14 is fixedly provided on each side of the housing 8. The rotation axis of the arc-shaped groove 14 is collinear with the axis of the output shaft of the rocker transmission housing 102. The first gear 6 is positioned between the two arc-shaped grooves 14. The connection between the bed support plate 12 and the swing seat 9 and bed surface 11 is a hinged joint. The swing seat 9 is generally T-shaped, with the upper end of the T-shape connected to the rocker bed surface 11 and the lower end of the T-shape connected to the first gear 6.

[0028] In this embodiment, the driving device includes a servo motor 1 and a reducer 2. The servo motor 1 is connected to the reducer 2. A transmission shaft 3 is fixedly connected to both ends of the output shaft of the reducer 2. The transmission shaft 3 is connected to the gear shaft of the second gear 5 through a coupling 4.

[0029] In this embodiment, a controller is also included. An angle sensor 10 is provided on the swing seat 9, and the angle sensor 10 and the servo motor 1 are electrically connected to the controller. The angle sensor 10 is used to detect the tilt angle of the bed surface 11 and transmits the tilt angle data to the controller in the automatic control system through a communication interface. The controller sends adjustment commands to the servo motor 1 of the automatic servo slope adjustment mechanism according to the designed control algorithm. The servo motor 1 rotates a corresponding number of times according to the command, driving the automatic servo slope adjustment mechanism to achieve automatic and precise adjustment of the bed surface tilt angle, thereby achieving the purpose of stabilizing the separation index of the mineral processing shaking table.

[0030] The mineral processing shaking table mainly consists of a table surface 11, a transmission box 102, and an automatic table surface slope adjustment device 101. The table surface 11 is connected and supported on two left and right swing seats 9 via a table surface support plate 12. The connection between the table surface support plate 12, the swing seats 9, and the table surface 11 is a joint hinge connection, and the connection is lubricated with grease. The swing seats 9 are seated on the box base 8 through a sliding curved surface 15 and an arc-shaped sliding groove 14. The weight of the table surface 11 and the swing seats 9 is entirely borne by the box base 8 through the sliding curved surface 15 and the arc-shaped sliding groove 14. The contact surfaces of the sliding curved surface 15 and the arc-shaped sliding groove 14 are mating surfaces and are coated with grease. The swing seats 9 can rotate around the output axis of the shaking table transmission box 102 on the box base 8 through the sliding curved surface 15 and the arc-shaped sliding groove 14. The swing seats 9 and the first gear 6 are connected as one unit through a flange and connecting bolts 13. The servo motor 1 is fixed on the reducer 2, and the reducer 2 is connected to the left and right transmission shafts 3 through keyways.

[0031] The automatic slope adjustment process using this device is as follows: First, the angle sensor 10 detects the actual slope a of the swing seat 9 (i.e., the slope of the bed surface 11) and transmits it to the automatic control system. The controller in the automatic control system compares a with the set slope a1 and calculates the number of revolutions of the servo motor 1 in the forward or reverse direction based on the difference a1-a. The servo motor 1 drives the reducer 2 to rotate, the reducer 2 drives the transmission shaft 3 to rotate by the corresponding angle, the transmission shaft 3 drives the second gear 5 to rotate by the corresponding angle through the coupling 4, and the second gear 5 drives the first gear 6 and the swing seat 9 to swing by the corresponding angle until a1-a = 0, thus ending the automatic slope adjustment process.

[0032] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An automatic slope adjustment device for a mineral processing shaking table, characterized in that: The device includes a drive unit and a bed support mechanism. Two bed support mechanisms are provided, each located at the bottom of one end of the bed surface. Each bed support mechanism includes a base, a first gear, a second gear, a swing seat, and a bed support plate. The base has a fixed arc-shaped groove coaxial with the output shaft of the rocker transmission box. The bottom of the swing seat has a sliding surface that mates with the arc-shaped groove. The swing seat slides along the sliding surface and is supported on the arc-shaped groove. The bed support plate is connected to the upper part of the swing seat to connect to and support the bed surface. The first gear is fixed to the bottom of the swing seat and coaxial with the output shaft of the rocker transmission box. The second gear is rotatably connected to the base and meshes with the first gear. The drive unit is connected to the second gear to synchronously drive both second gears to rotate.

2. The automatic slope adjustment device for the mineral processing shaking table according to claim 1, characterized in that: The drive device includes a servo motor and a reducer. The servo motor is connected to the reducer. A transmission shaft is fixedly connected to each end of the output shaft of the reducer. The transmission shaft is connected to the gear shaft of the second gear through a coupling.

3. The automatic slope adjustment device for the mineral processing shaking table according to claim 2, characterized in that: It also includes a controller, and the swing base is equipped with an angle sensor. The angle sensor and the servo motor are electrically connected to the controller.

4. The automatic slope adjustment device for the mineral processing shaking table according to claim 1, characterized in that: The drive device is located between the two bed support mechanisms.

5. The automatic slope adjustment device for the mineral processing shaking table according to claim 1, characterized in that: The first gear is fixed to the swing seat via a flange structure and bolts.

6. The automatic slope adjustment device for the mineral processing shaking table according to claim 1, characterized in that: Each side of the housing is fixed with one of the arc-shaped sliding grooves.

7. The automatic slope adjustment device for the mineral processing shaking table according to claim 6, characterized in that: The first gear is disposed between the two arc-shaped grooves.

8. The automatic slope adjustment device for the mineral processing shaking table according to claim 1, characterized in that: The connection between the bed support plate and the swing seat and the bed surface is a jointed hinge connection.

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