Automatic control device for adjusting feeding direction along with position of feeding belt

Abstract

The utility model provides an automatic control device for adjusting the feeding direction along with the position of a feeding belt, which comprises an electric push rod three-way distributor control unit and a two-way rail type movable feeding belt control unit, and the electric push rod three-way distributor control unit comprises a three-way distributor. An electric push rod is arranged on the side of the three-way distributor, a turning plate is arranged at the internal distributing position, a transmission shaft is arranged at the end of the turning plate, the electric push rod is connected with the transmission shaft through a connecting rod, and a forward position sensor and a reverse position sensor are arranged at the positions, corresponding to the connecting rod, of the outer wall of the three-way distributor and used for detecting the position of the turning plate. In the using process, the electric three-way material distributor conducts plate turning action and changes the discharging direction according to a sent instruction, after the movable feeding belt moves to the position of the stock bin, the stock bin position sensor judges that the belt is in place, the running direction of the belt is the same as the feeding direction of the material distributor, hedging of the belt and ore can be greatly reduced, and the service life of the material distributor is prolonged. The belt abrasion loss is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial intelligent control, and relates to an automatic control device for adjusting the feeding direction according to the position of a feeding belt. Background Art

[0002] At present, most of the upper parts of bidirectional mobile belts used in China use ordinary single-port inclined feeding openings and do not use three-way distributors for feeding. When feeding into different bins, there is a situation where the running direction of the bidirectional mobile belt is inconsistent with the feeding direction. At this time, the ore and the belt surface impact each other, resulting in an increase in the wear of the belt surface. Not only is the ore scattering more serious, increasing the workload of on-site cleaning by employees, but on the other hand, it also shortens the service life of the belt. The service life of the belt is only about 12 months, while the normal replacement cycle of the belt is about 3 years. Content of the Utility Model

[0003] The purpose of the utility model is to provide an automatic control device for adjusting the feeding direction according to the position of a feeding belt to solve the problems that in the actual use process of the current belt, it is easy to have a situation where the falling material is not in the same direction as the running direction of the belt, resulting in material scattering and the ore and the belt surface impacting each other, leading to a shortened service life of the belt.

[0004] To this end, the utility model adopts the following technical solutions:

[0005] An automatic control device for adjusting the feeding direction according to the position of a feeding belt includes an electric push rod three-way distributor control unit and a bidirectional track-type mobile feeding belt control unit;

[0006] The electric push rod three-way distributor control unit includes a three-way distributor, on the side of which there is an electric push rod, and at the internal diversion part there is a flap. The end of the flap is provided with a transmission shaft, and the electric push rod is connected to the transmission shaft through a connecting rod. Corresponding to the position of the connecting rod on the outer wall of the three-way distributor, there are a forward position sensor and a reverse position sensor, both of which are used to detect the position of the flap;

[0007] The electric push rod three-way distributor control unit further includes a PLC controller. On the side of the PLC controller, there are respectively a flap forward contactor and a flap reverse contactor electrically connected thereto, both of which are used to detect whether the flap has flipped in place.

[0008] The bidirectional track-type mobile feeding belt control unit includes a first bin position sensor and a second bin position sensor. The first bin position sensor is arranged beside the track of the first bin, and the second bin position sensor is arranged beside the track of the second bin. The first bin position sensor and the second bin position sensor respectively transmit position signals to the PLC controller through control lines, and both are used to detect whether the belt has moved to the ore discharging position of the bin;

[0009] The two-way track type mobile feeding belt control unit further includes a mobile feeding belt, which is provided with a belt driving drum and a traveling driving motor, and a traveling track is arranged below. The traveling driving motor is electrically connected to a belt traveling frequency converter, the belt driving drum is electrically connected to a belt rotating frequency converter, the belt traveling frequency converter is respectively electrically connected to a belt forward traveling contactor and a belt reverse traveling contactor, the belt rotating frequency converter is respectively electrically connected to a belt forward rotating contactor and a belt reverse rotating contactor, and the PLC controller is respectively electrically connected to the belt forward rotating contactor, the belt reverse rotating contactor, the belt forward traveling contactor and the belt reverse traveling contactor.

[0010] Further, the flap forward contactor, the flap reverse contactor, the first bin position sensor and the second bin position sensor are all normally open inductive proximity switches.

[0011] The beneficial effects of the present utility model are as follows:

[0012] During the use of the present utility model, the electric three-way distributor performs a flap action according to the issued instruction to change the discharging direction. The two flap position sensors on the distributor determine whether the flap action is in the correct position. When the mobile feeding belt moves to the bin position and the bin position sensor determines that the belt is in place, the belt can be started. At this time, the running direction of the belt is the same as the feeding direction of the distributor, so that the direct collision between the belt and the ore can be reduced, thereby reducing the wear amount of the belt. Description of the Drawings

[0013] Figure 1 It is a control schematic diagram of the electric push rod three-way distributor control unit in the present utility model;

[0014] Figure 2 It is a control schematic diagram of the two-way track type mobile feeding belt control unit in the present utility model.

[0015] In the figure, 1 - electric push rod, 2 - connecting rod, 3 - transmission shaft, 4 - flap, 5 - forward position sensor, 6 - reverse position sensor, 7 - three-way distributor, 8 - flap forward contactor, 9 - flap reverse contactor, 10 - belt driving drum, 11 - traveling driving motor, 12 - mobile feeding belt, 13 - traveling track, 14 - first bin position sensor, 15 - second bin position sensor, 16 - control line, 17 - belt forward rotating contactor, 18 - belt reverse rotating contactor, 19 - belt forward traveling contactor, 20 - belt reverse traveling contactor, 21 - belt traveling frequency converter, 22 - belt rotating frequency converter, 23 - first bin, 24 - second bin. Detailed Embodiment

[0016] The technical solution of the present utility model will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] An automatic control device for adjusting the feeding direction following the position of the feeding belt, comprising an electric push rod three-way distributor control unit and a two-way track type mobile feeding belt control unit.

[0018] As Figure 1 shown, the electric push rod three-way distributor control unit includes a three-way distributor 7, on the side of which there is an electric push rod 1, and at the internal diversion point there is a flap 4. A transmission shaft 3 is provided at the end of the flap 4. The electric push rod 1 is connected to the transmission shaft 3 through a connecting rod 2. At the position corresponding to the connecting rod 2 on the outer wall of the three-way distributor 7, there are a forward position sensor 5 and a reverse position sensor 6, both of which are used to detect the position of the flap; the electric push rod three-way distributor control unit further includes a PLC controller. On the side of the PLC controller, there are respectively a flap forward contactor 8 and a flap reverse contactor 9 electrically connected thereto, both of which are used to detect whether the flap is flipped in place.

[0019] As Figure 2 shown, the two-way track type mobile feeding belt control unit includes a first bin position sensor 14 and a second bin position sensor 15. The first bin position sensor 14 is arranged beside the track of the first bin, and the second bin position sensor 15 is arranged beside the track of the second bin. The first bin position sensor 14 and the second bin position sensor 15 respectively transmit the position signals to the PLC controller through control lines 16, both of which are used to detect whether the belt moves to the ore discharging position of the bin; the two-way track type mobile feeding belt control unit further includes a mobile feeding belt 12. The mobile feeding belt 12 is provided with a belt driving roller 10 and a traveling driving motor 11, and a traveling track 13 is arranged below. The traveling driving motor 11 is electrically connected to a belt traveling frequency converter 21, and the belt driving roller 10 is electrically connected to a belt rotating frequency converter 22. The belt traveling frequency converter 21 is respectively electrically connected to a belt forward traveling contactor 19 and a belt reverse traveling contactor 20, and the belt rotating frequency converter 22 is respectively electrically connected to a belt forward rotating contactor 17 and a belt reverse rotating contactor 18. The PLC controller is respectively electrically connected to the belt forward rotating contactor 17, the belt reverse rotating contactor 18, the belt forward traveling contactor 19 and the belt reverse traveling contactor 20.

[0020] Specifically, the flap forward contactor 8, the flap reverse contactor 9, the first bin position sensor 14 and the second bin position sensor 15 are all normally open inductive proximity switches.

[0021] The usage process of the present utility model is as follows:

[0022] When feeding the first bunker 23, the PLC controls the forward walking contactor 19 to actuate. The forward walking contactor 19 drives the belt walking frequency converter 21 to operate. The belt walking frequency converter 21 drives the walking drive motor 11 to rotate forward. The walking drive motor 11 drives the mobile feeding belt 12 to move forward on the walking track 13. When the mobile feeding belt 12 moves to the position of the first bunker 23, the first bunker position sensor 14 issues an instruction to send a stop command to the PLC through the control line 16, and the mobile feeding belt 12 stops moving. At the same time, the PLC controls the flap forward contactor 8 to actuate. The forward contactor 8 drives the electric push rod 1 to actuate. The electro-hydraulic push rod 1 drives the rotating shaft 3 to rotate through the connecting rod 2. When the rotating shaft 3 rotates, it drives the flap 4 in the three-way distributor 7 to rotate. When the flap 4 rotates to the forward position sensor 5, the forward position sensor 5 sends a stop command to the PLC and the flap 4 stops acting. When both the mobile feeding belt 12 and the flap 4 reach the specified positions, the PLC controls the belt forward rotation contactor 17 to actuate. The belt forward rotation contactor 17 drives the belt rotation frequency converter 22 to operate. After the belt rotation frequency converter 22 operates, it drives the belt drive roller 10 to rotate forward. At this time, when the upper incoming material falls onto the mobile feeding belt 12 through the three-way distributor 7, the incoming material is in the same direction as the belt running direction, reducing the direct impact between the belt and the ore and reducing the belt wear amount.

[0023] When feeding the second bunker 24, the working principle between the PLC controller and the components is the same as that above, and the only difference between the two is the forward and reverse directions, so it will not be elaborated here.

Claims

1. An automatic control device for adjusting the feeding direction following the position of the feeding belt, characterized in that: It includes an electric push rod three-way distributor control unit and a two-way track type mobile feeding belt control unit; The electric push rod three-way distributor control unit comprises a three-way distributor (7), a side of which is provided with an electric push rod (1), an internal diversion portion is provided with a flap (4), an end of the flap (4) is provided with a transmission shaft (3), the electric push rod (1) is connected to the transmission shaft (3) via a connecting rod (2), and an outer wall of the three-way distributor (7) is provided with a forward position sensor (5) and a reverse position sensor (6) at a position corresponding to the connecting rod (2), both of which are used to detect the position of the flap; The electric push rod three-way distributor control unit also includes a PLC controller, and the side of the PLC controller is respectively provided with a flap forward contactor (8) and a flap reverse contactor (9) electrically connected thereto, both of which are used to detect whether the flap has flipped into place.

2. The automatic control device for adjusting the feeding direction following the position of the feeding belt according to claim 1 is characterized in that: The bidirectional track type mobile feeding belt control unit comprises a first silo position sensor (14) and a second silo position sensor (15), wherein the first silo position sensor (14) is arranged beside the track of the first silo, and the second silo position sensor (15) is arranged beside the track of the second silo, and the first silo position sensor (14) and the second silo position sensor (15) respectively transmit position signals to the PLC controller via a control line (16), and both are used to detect whether the belt has moved to the silo ore placing position; The bidirectional track type mobile feeding belt control unit also includes a mobile feeding belt (12), wherein the mobile feeding belt (12) is provided with a belt driving roller (10) and a travel driving motor (11), and a travel track (13) is provided below the mobile feeding belt, wherein the travel driving motor (11) is electrically connected to a belt travel frequency converter (21), wherein the belt driving roller (10) is electrically connected to a belt rotation frequency converter (22), wherein the belt travel frequency converter (21) is electrically connected to a belt forward travel contactor (19) and a belt reverse travel contactor (20), respectively, wherein the belt rotation frequency converter (22) is electrically connected to a belt forward rotation contactor (17) and a belt reverse rotation contactor (18), respectively, and wherein the PLC controller is electrically connected to the belt forward rotation contactor (17), the belt reverse rotation contactor (18), the belt forward travel contactor (19), and the belt reverse travel contactor (20), respectively.

3. The automatic control device for adjusting the feeding direction following the position of the feeding belt according to claim 2 is characterized in that: The flap forward contactor (8), the flap reverse contactor (9), the first silo position sensor (14) and the second silo position sensor (15) are all normally open inductive proximity switches.

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