Remote control actuator for double-section shaking table receiving chute

Abstract

The present invention discloses a double-section shaking table ore receiving chute remote control actuator, which comprises a shaking table bed and a slide body. The slide body is provided at the upper end of the shaking table bed, and a passive ore receiving chute bracket and an active ore receiving chute bracket are respectively provided at the connection between the shaking table bed and the slide body. The lower end of the passive ore receiving chute bracket passes through the shaking table bed and is connected with the passive ore receiving chute. The design of the limit switch of the present invention ensures the safety of equipment operation; the design of the laser rangefinder can realize the closed loop of position calculation and improve the overall stability of equipment operation; the design of the ore receiving chute bracket installs the slide, motor and other major equipment above the shaking table, which is not affected by vibration, humidity, water and ore below the shaking table. The ore receiving chute is below the shaking table, which not only realizes the ore receiving function of the ore receiving chute, but also arranges the main components in a safe area, thereby improving the service life of the equipment and facilitating maintenance.

Description

Technical Field

[0001] The invention belongs to the technical field of shaking table ore receiving chutes, and in particular relates to a remote control executing mechanism for a double-section shaking table ore receiving chutes. Background Art

[0002] A ore-dressing shaking table causes ore particles to move in different directions according to their density and particle size. Starting from the feed chute, the particles fan out diagonally and are discharged along the edge of the bed. The long discharge line allows for precise production of a variety of products of varying quality, such as concentrate, sub-concentrate, middling concentrate, and tailings. As a gravity separation device, the ore-dressing shaking table was once widely used for separating minerals such as placer gold, primarily for gold and coal selection. This device replaces the manual ore receiving chute of a ore-dressing shaking table and enables remote and electric control of the chute. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a remote control actuator for a double-section shaking table ore receiving chute to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-section shaking table ore receiving trough remote control actuator, including a shaking table surface and a slide body, the upper end of the shaking table surface is provided with a slide body, the connection between the shaking table surface and the slide body is respectively provided with a passive ore receiving trough bracket and an active ore receiving trough bracket, the lower end of the passive ore receiving trough bracket passes through the shaking table surface and is connected to the passive ore receiving trough, the lower end of the active ore receiving trough bracket passes through the shaking table surface and is connected to the active ore receiving trough, the upper end of the passive ore receiving trough bracket passes through the shaking table surface and is connected to the passive slide seat, the active The upper end of the dynamic ore chute bracket passes through the shaking table surface and is connected to the active slide. The passive slide and the active slide are both arranged on one side of the slide body. Limit switches are provided on both sides of the slide body. The surfaces of the passive slide and the active slide are both provided with flexible connectors. The two flexible connectors are connected to each other through a follower line. A laser rangefinder reflector is provided on the surface of the active slide, and a laser rangefinder is provided on the other side of the passive slide. A motor and a reducer are provided at one end of the slide body, and one side of the slide body is electrically connected to a PLC control cabinet.

[0005] Preferably, the equipment is installed above the ore-dropping side of the shaking table, and the ore receiving trough is set below the ore-dropping side of the shaking table. The slide adopts a single screw and double slide rail structure, driven by an ordinary motor, and a reducer is installed between the motor and the screw to limit the maximum rotation speed of the screw.

[0006] Preferably, two slides are installed on the screw, and they are an active slide and a passive slide respectively. The active slide is threadedly connected to the screw, and the rotation of the screw will drive the active slide to move; the passive slide is fixed on the double slide rails, is not connected to the screw, and can move back and forth under the push of external force.

[0007] Preferably, the following wire is a thin steel wire, and both ends of the steel wire are fixed on the active slide and the passive slide, and the length of the steel wire is 1 / 2 of the total length of the slide; when the active slide moves forward driven by the motor, the following wire is gradually tightened, and when the distance between the active slide and the passive slide is equal to 1 / 2 of the total length of the slide, the following wire is tightened, driving the passive slide to continue moving forward until it reaches the end point of the slide; when the active slide moves backward, the passive slide does not move, and the following wire is gradually relaxed; when the active slide is close to the passive slide, it will drive the passive slide to move backward until it reaches the starting point of the slide.

[0008] Preferably, the slide screw is driven by an ordinary forward and reverse motor, which uses phase commutation to achieve forward and reverse rotation; and the motor speed is constant; the starting point and end point of the slide are each installed with an infrared switch, and the switch signal is connected to the PLC to detect whether the slide has reached the starting point or end point, and by compiling a program for the linkage control of the limit switch and the motor, the starting and end point limits of the slide are achieved.

[0009] Preferably, a laser rangefinder is installed on the side of the slide, and a laser rangefinder reflector is installed on the side of the slide. The laser beam hits the laser rangefinder reflector and reflects back. The distance between the laser rangefinder reflector and the laser head is calculated by the reflection angle, thereby calculating the actual position of the slide. The laser rangefinder outputs a 4-20mA standard signal, which is connected to the PLC for calculating the position data of the slide.

[0010] Preferably, the slide is connected to the ore receiving chute bracket, and the ore receiving chute is installed at the bottom of the ore receiving chute bracket. The calculation formula of the ore receiving chute length is as follows:

[0011]

[0012] The connection method and length of the ore receiving trough of the active slide and the passive slide are consistent. The bracket height of the passive slide is 10 cm higher than that of the active slide to ensure that the passive ore receiving trough is below the active ore receiving trough.

[0013] The design of the double-section ore receiving chute can extend the moving distance of the ore receiving chute and save space. When encountering an application scenario that does not require long-distance movement, the passive ore receiving chute bracket can be removed.

[0014] Preferably, the PLC control cabinet is S7-200smart PLC, and the limit switch, laser rangefinder, motor and reducer are all connected to the PLC. The PLC has an open communication interface and can receive remote control signals from the host computer or other PLCs, and realize closed-loop position control of the ore receiving chute.

[0015] Preferably, the control principle is as follows: when the received position information is inconsistent with the current actual position information and the deviation exceeds 2%, a forward or backward movement instruction is issued, and the position data of the slide is detected in real time until the deviation is less than 2%, then the operation is stopped to realize remote position control of the ore receiving chute; when the PLC receives the infrared limit switch signal, the motor is stopped immediately and a limit alarm is issued to ensure the safety of the equipment.

[0016] Compared with the prior art, the present invention provides a remote control actuator for a double-section shaking table receiving chute, which has the following beneficial effects:

[0017] 1. The double-section ore receiving chute design of the present invention can improve the expansion and contraction ratio of the ore receiving chute, thereby lengthening the movable distance of the ore receiving chute; the passive ore receiving chute has a simple design structure, a low failure rate, and can be flexibly applied to single-section and multi-section application scenarios;

[0018] 2. The design of the ordinary motor + reducer of the present invention is designed for the scenario where the position accuracy of the shaking table receiving chute is not high but the working environment is relatively harsh. It has a simple structure, easy maintenance, strong stability and high adaptability to the working environment.

[0019] 3. The design of the limit switch of the present invention ensures the safety of equipment operation; the design of the laser rangefinder can realize the closed-loop of position calculation, improving the overall stability of equipment operation; the design of the ore receiving chute bracket installs the slide, motor and other major equipment above the shaking table, which is not affected by vibration, humidity, water and ore below the shaking table. The ore receiving chute is located below the shaking table, which not only realizes the ore receiving function of the ore receiving chute, but also arranges the main components in a safe area, thereby extending the service life of the equipment and facilitating maintenance.

[0020] 4. The PLC centralized control of the present invention concentrates all control signals and control programs in a single small PLC. The host computer or other PLC only needs to send a single position control instruction to complete the control function of the equipment, thereby improving the integration of the equipment and reducing the difficulty of secondary development. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 A schematic diagram of the structure proposed by the present invention;

[0023] Figure 2 A top view of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the PLC control cabinet proposed by the present invention;

[0025] In the figure: 1. Passive slide; 2. Flexible connector; 3. Follower line; 4. Active slide; 5. Shaking table surface; 6. Motor and reducer; 7. Slide body; 8. Passive ore receiving chute; 9. Active ore receiving chute; 10. Laser rangefinder; 11. Laser rangefinder reflector; 12. Limit switch; 13. Passive ore receiving chute bracket; 14. Active ore receiving chute bracket; 15. PLC control cabinet. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-3The present invention provides a technical solution: a double-section shaking table ore receiving trough remote control actuator, including a shaking table bed 5 and a slide body 7. The double-section ore receiving trough design can improve the expansion and contraction ratio of the ore receiving trough, thereby lengthening the movable distance of the ore receiving trough; the upper end of the shaking table bed 5 is provided with a slide body 7, and the connection between the shaking table bed 5 and the slide body 7 is respectively provided with a passive ore receiving trough bracket 13 and an active ore receiving trough bracket 14. The design of the passive ore receiving trough bracket 13 and the active ore receiving trough bracket 14 installs the main equipment such as the slide and the motor above the shaking table, which is not affected by vibration, humidity, water, and ore below the shaking table. The receiving trough is below the shaking table, which not only realizes the receiving function of the ore receiving trough, but also arranges the main components in a safe area, thereby improving the service life of the equipment and facilitating maintenance; the lower end of the passive ore receiving trough bracket 13 passes through the shaking table surface 5 and is connected to the passive ore receiving trough 8. The design structure of the passive ore receiving trough 8 is simple, the failure rate is low, and it can be flexibly applied to single-section and multi-section application scenarios; the lower end of the active ore receiving trough bracket 14 passes through the shaking table surface 5 and is connected to the active ore receiving trough 9, the upper end of the passive ore receiving trough bracket 13 passes through the shaking table surface 5 and is connected to the passive slide 1, and the upper end of the active ore receiving trough bracket 14 passes through the shaking table surface 5 It is connected to an active slide 4, and the passive slide 1 and the active slide 4 are both arranged on one side of the slide body 7. Limit switches 12 are provided on both sides of the slide body 7. The design of the limit switch 12 ensures the safety of the equipment operation; the passive slide 1 and the active slide 4 are both provided with soft connectors 2 on the surface, and the two soft connectors 2 are connected to each other through a follower line 3. A laser rangefinder reflector 11 is provided on the surface of the active slide 4, and a laser rangefinder 10 is provided on the other side of the passive slide 1. The design of the laser rangefinder 10 can realize the closed loop of position calculation and improve the overall stability of the equipment operation; slide A motor and a reducer 6 are provided at one end of the main body 7. The design of the ordinary motor and reducer 6 is for the scenario where the position accuracy of the shaking table receiving ore chute is not high, but the working environment is relatively harsh. It has a simple structure, is easy to maintain, has strong stability, and has high adaptability to the working environment; a PLC control cabinet 15 is electrically connected to one side of the slide body 7; PLC centralized control concentrates all control signals and control programs in a single small PLC. The host computer or other PLC only needs to send a single position control instruction to complete the control function of the equipment, thereby improving the integration of the equipment and reducing the difficulty of secondary development.

[0028] In the present invention, preferably, the equipment is installed above the ore-dropping side of the shaking table, the ore receiving trough is arranged below the ore-dropping side of the shaking table, the slide adopts a single screw and double slide rail structure, is driven by an ordinary motor, and a reducer is installed between the motor and the screw to limit the maximum rotation speed of the screw.

[0029] In the present invention, preferably, two slides are installed on the screw, and they are an active slide 4 and a passive slide 1 respectively. The active slide 4 is threadedly connected to the screw, and the rotation of the screw will drive the active slide 4 to move; the passive slide 1 is fixed on the double slide rails, is not connected to the screw, and can move back and forth under the push of external force.

[0030] In the present invention, preferably, the following line 3 is a thin steel wire, and the two ends of the steel wire are fixed on the active slide 4 and the passive slide 1, and the length of the steel wire is 1 / 2 of the total length of the slide; when the active slide moves forward driven by the motor, the following line 3 is gradually tightened, and when the distance between the active slide 4 and the passive slide 1 is equal to 1 / 2 of the total length of the slide, the following line 3 is tightened, driving the passive slide 1 to continue moving forward until it reaches the end point of the slide; when the active slide 4 moves backward, the passive slide 1 does not move, and the following line 3 gradually relaxes; when the active slide 4 is close to the passive slide 1, it will drive the passive slide 1 to move backward until it reaches the starting point of the slide.

[0031] In the present invention, preferably, the slide screw is driven by an ordinary forward and reverse motor, and the phase change method is adopted to realize forward and reverse rotation; and the motor speed is constant; the starting point and end point of the slide are each installed with an infrared switch, and the switch signal is connected to the PLC to detect whether the slide has reached the starting point or end point, and by compiling a program for the linkage control of the limit switch and the motor, the starting and end point limits of the slide are realized.

[0032] In the present invention, preferably, a laser rangefinder 10 is installed on the side of the slide, and a laser rangefinder reflector 11 is installed on the side of the slide. The laser beam hits the laser rangefinder reflector 11 and reflects back. The distance between the laser rangefinder reflector 11 and the laser head is calculated by the reflection angle, thereby calculating the actual position of the slide; the laser rangefinder 10 outputs a 4-20mA standard signal, which is connected to the PLC for calculating the position data of the slide;

[0033] The slide is connected to the ore receiving chute bracket. The ore receiving chute is installed at the bottom of the ore receiving chute bracket. The formula for calculating the ore receiving chute length is as follows:

[0034]

[0035] The connection mode and length of the ore receiving trough of the active slide 4 and the passive slide 1 are consistent. The bracket height of the passive slide 1 is 10 cm higher than that of the active slide 4, ensuring that the passive ore receiving trough 8 is below the active ore receiving trough 9.

[0036] In the present invention, preferably, the design of the double-section ore receiving chute can extend the moving distance of the ore receiving chute and save space. When encountering an application scenario that does not require long-distance movement, the passive ore receiving chute bracket can be removed.

[0037] In the present invention, preferably, the PLC control cabinet 15 is an S7-200smart PLC, the limit switch 12, the laser rangefinder 10, the motor and the reducer 6 are all connected to the PLC, and the PLC has an open communication interface, which can receive remote control signals from the host computer or other PLCs and realize closed-loop position control of the ore receiving chute.

[0038] In the present invention, preferably, the control principle is as follows: when the received position information is inconsistent with the current actual position information and the deviation exceeds 2%, a forward or backward movement instruction is issued, and the position data of the slide is detected in real time until the deviation is less than 2%, and then the operation is stopped to realize remote position control of the ore receiving chute; when the PLC receives the infrared limit switch signal, the motor is stopped immediately and a limit alarm is issued to ensure the safety of the equipment.

[0039] The working principle and use process of the present invention are as follows: when in use, the equipment is installed above the side of the shaking table where the ore is dropped, and the ore receiving trough is arranged below the side of the shaking table where the ore is dropped. The slide adopts a single screw and double slide rail structure, and is driven by an ordinary motor, and a reducer is installed between the motor and the screw rod to limit the maximum rotation speed of the screw. Two slides are installed on the screw, and they are an active slide 4 and a passive slide 1 respectively. The active slide 4 is threadedly connected to the screw, and the rotation of the screw will drive the active slide 4 to move; the passive slide 1 is fixed on the double slide rails and is not connected to the screw. It can move back and forth under the push of external force. The following line 3 is a thin steel wire, and both ends of the steel wire are It is fixed on the active slide 4 and the passive slide 1, and the length of the steel wire is 1 / 2 of the total length of the slide; when the active slide moves forward under the drive of the motor, the following wire 3 is gradually tightened. When the distance between the active slide 4 and the passive slide 1 is equal to 1 / 2 of the total length of the slide, the following wire 3 is tightened, driving the passive slide 1 to continue moving forward until it reaches the end of the slide; when the active slide 4 moves backward, the passive slide 1 does not move, and the following wire 3 is gradually relaxed; when the active slide 4 is close to the passive slide 1, it will drive the passive slide 1 to move backward until it reaches the starting point of the slide. The slide screw is driven by an ordinary forward and reverse motor and adopts a switching Phase way, to achieve forward and reverse rotation; and the motor speed is constant; the starting point and end point of the slide are each equipped with an infrared switch, the switch signal is connected to the PLC, which is used to detect whether the slide has reached the starting point or end point, and by compiling a program for the linkage control of the limit switch and the motor, the starting and end point limits of the slide are realized. A laser rangefinder 10 is installed on the side of the slide, and a laser rangefinder reflector 11 is installed on the side of the slide. The laser beam hits the laser rangefinder reflector 11 and is reflected back. The distance between the laser rangefinder reflector 11 and the laser head is calculated by the reflection angle, thereby calculating the actual position of the slide; the laser rangefinder 1 0 outputs a 4-20mA standard signal, which is connected to the PLC for calculating the position data of the slide; the slide is connected to the ore receiving trough bracket, and the ore receiving trough is installed at the bottom of the ore receiving trough bracket. The connection method and length of the ore receiving trough of the active slide 4 and the passive slide 1 are consistent. The bracket height of the passive slide 1 is 10cm higher than that of the active slide 4, ensuring that the passive ore receiving trough 8 is below the active ore receiving trough 9. The design of the double-section ore receiving trough can extend the moving distance of the ore receiving trough and save space. When encountering an application scenario that does not require long-distance movement, the passive ore receiving trough bracket can be removed. The PLC control cabinet 15 is an S7-200smart PLC, and the limit switch 12, laser rangefinder 10, motor and reducer 6 are all connected to the PLC. The PLC has an open communication interface and can accept remote control signals from the host computer or other PLCs, and realize closed-loop position control of the ore receiving trough.When the received position information is inconsistent with the current actual position information and the deviation exceeds 2%, a forward or backward movement instruction is issued, and the position data of the slide is detected in real time until the deviation is less than 2%. The operation is stopped to achieve remote position control of the ore receiving chute; when the PLC receives the infrared limit switch signal, the motor is stopped immediately and a limit alarm is issued to ensure equipment safety.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A remote control actuator for a double-section shaking table receiving ore chute, comprising a shaking table surface (5) and a slide body (7), characterized in that: The upper end of the shaking table surface (5) is provided with a slide body (7), and the connection between the shaking table surface (5) and the slide body (7) is respectively provided with a passive ore receiving trough bracket (13) and an active ore receiving trough bracket (14), the lower end of the passive ore receiving trough bracket (13) passes through the shaking table surface (5) and is connected to the passive ore receiving trough (8), the lower end of the active ore receiving trough bracket (14) passes through the shaking table surface (5) and is connected to the active ore receiving trough (9), the upper end of the passive ore receiving trough bracket (13) passes through the shaking table surface (5) and is connected to the passive slide (1), the upper end of the active ore receiving trough bracket (14) passes through the shaking table surface (5) and is connected to the active slide (4), The passive slide (1) and the active slide (4) are both arranged on one side of the slide body (7), and limit switches (12) are arranged on both sides of the slide body (7). The surfaces of the passive slide (1) and the active slide (4) are both provided with flexible connectors (2), and the two flexible connectors (2) are connected to each other through a follower line (3). A laser rangefinder reflector (11) is provided on the surface of the active slide (4), and a laser rangefinder (10) is provided on the other side of the passive slide (1). A motor and a reducer (6) are provided at one end of the slide body (7), and one side of the slide body (7) is electrically connected to a PLC control cabinet (15); The slide adopts a single screw and double slide rail structure. Two slides are installed on the screw, and they are an active slide (4) and a passive slide (1). The active slide (4) is connected to the screw thread. The rotation of the screw will drive the active slide (4) to move; the passive slide (1) is fixed on the double slide rails and is not connected to the screw. It can move forward and backward under the push of external force.

2. The double-section shaking table ore receiving chute remote control actuator according to claim 1 is characterized in that: The equipment is installed above the ore-dropping side of the shaking table, and the ore receiving chute is set below the ore-dropping side of the shaking table. The slide adopts a single screw and double slide rail structure, driven by an ordinary motor, and a reducer is installed between the motor and the screw to limit the maximum rotation speed of the screw.

3. The double-section shaking table ore receiving chute remote control actuator according to claim 2 is characterized in that: The following wire (3) is a thin steel wire, and both ends of the steel wire are fixed on the active slide (4) and the passive slide (1), and the length of the steel wire is 1 / 2 of the total length of the slide; when the active slide moves forward under the drive of the motor, the following wire (3) is gradually tightened, and when the distance between the active slide (4) and the passive slide (1) is equal to 1 / 2 of the total length of the slide, the following wire (3) is tightened, driving the passive slide (1) to continue moving forward until it reaches the end of the slide; when the active slide (4) moves backward, the passive slide (1) does not move, and the following wire (3) is gradually relaxed; when the active slide (4) is close to the passive slide (1), it will drive the passive slide (1) to move backward until it reaches the starting point of the slide.

4. The double-section shaking table ore receiving chute remote control actuator according to claim 3 is characterized in that: The slide screw is driven by an ordinary forward and reverse motor, which uses phase commutation to achieve forward and reverse rotation; and the motor speed is constant; infrared switches are installed at the starting point and end point of the slide, and the switch signal is connected to the PLC to detect whether the slide has reached the starting point or end point. By compiling a program for the linkage control of the limit switch and the motor, the starting and end point limits of the slide are realized.

5. The double-section shaking table ore receiving chute remote control actuator according to claim 4 is characterized in that: A laser rangefinder (10) is installed on the side of the slide, and a laser rangefinder reflector (11) is installed on the side of the slide. The laser beam hits the laser rangefinder reflector (11) and is reflected back. The distance between the laser rangefinder reflector (11) and the laser head is calculated by the reflection angle, thereby calculating the actual position of the slide. The laser rangefinder (10) outputs a 4-20mA standard signal, which is connected to the PLC and used to calculate the position data of the slide. The slide is connected to the ore receiving chute bracket. The ore receiving chute is installed at the bottom of the ore receiving chute bracket. The calculation formula of the ore receiving chute length is as follows: The connection mode and length of the ore receiving trough of the active slide (4) and the passive slide (1) are consistent, and the bracket height of the passive slide (1) is 10 cm higher than that of the active slide (4), ensuring that the passive ore receiving trough (8) is below the active ore receiving trough (9).

6. The double-section shaking table ore receiving chute remote control actuator according to claim 5, characterized in that: The design of the double-section ore receiving chute can extend the moving distance of the ore receiving chute and save space. When encountering an application scenario that does not require long-distance movement, the passive ore receiving chute bracket can be removed.

7. The double-section shaking table ore receiving chute remote control actuator according to claim 6, characterized in that: The PLC control cabinet (15) is an S7-200smart PLC. The limit switch (12), laser rangefinder (10), motor and reducer (6) are all connected to the PLC. The PLC has an open communication interface and can receive remote control signals from a host computer or other PLCs, and realize closed-loop position control of the ore receiving chute.

8. The double-section shaking table ore receiving chute remote control actuator according to claim 7, characterized in that: The control principle is as follows: when the received position information is inconsistent with the current actual position information and the deviation exceeds 2%, a forward or backward movement instruction is issued, and the position data of the slide is detected in real time. When the deviation is less than 2%, the operation is stopped to realize remote position control of the ore receiving chute; when the PLC receives the infrared limit switch signal, the motor is stopped immediately and a limit alarm is issued to ensure the safety of the equipment.

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