Electric flow regulator for ore drawing funnel

Abstract

The utility model belongs to the technical field of mining auxiliary equipment, and particularly discloses an electric flow regulator for an ore drawing funnel, which is characterized in that a baffle is movably connected to the discharge end of a material guide chute, a portal frame is arranged on the material guide chute in a spanning manner, and a driving mechanism for driving the baffle to lift is arranged on the portal frame; a plurality of weight sensors are arranged below the conveying belt at intervals, the controller can control starting and stopping of the driving mechanism according to information conveyed by the weight sensors, under the action of the driving mechanism, the baffle can vertically ascend and descend relative to the material guiding chute to adjust the discharging amount or stop ore discharging, and automatic control and adjustment of the flow of the ore drawing hopper are achieved. After the electric flow regulator for the ore drawing funnel is put into use, the overload fault shutdown accident of a conveyor belt conveyor is restrained, the condition that materials are scattered disorderly is improved, meanwhile, the labor intensity of workers is reduced, and potential safety hazards are eliminated.

Description

Technical Field

[0001] This utility model belongs to the technical field of mining auxiliary equipment, and specifically discloses an electric flow regulator for a ore discharge hopper. Background Technology

[0002] Currently, ore discharge machines are generally used for unloading ore in stockpiles during ore transportation. An ore discharge machine consists of a discharge hopper and a conveyor belt below the hopper. Ore material passes through the discharge hopper and the guide chute sequentially before falling onto the conveyor belt. During ore discharge, excessive ore flow often causes the lower conveyor belt to overload and shut down. There is also the problem of material spilling disorderly onto the lower conveyor belt rollers, requiring frequent manual handling, which is time-consuming and labor-intensive. To solve these problems, a baffle plate is usually installed at the discharge port of the guide chute of the ore discharge machine. The discharge rate is adjusted or the discharge is stopped by manually raising and lowering the baffle plate. However, this method requires long-term on-site operation by workers. When ore jamming occurs or the discharge rate needs to be adjusted, workers must manually adjust the baffle plate position at the discharge port of the ore discharge machine. This results in long working hours, high labor intensity, low efficiency, and safety hazards. Therefore, a device that can effectively regulate ore flow rate needs to be designed. Summary of the Invention

[0003] To address the problems in the background art, this utility model discloses an electric flow regulator for a ore discharge hopper. Under the action of a drive device, the baffle plate is raised and lowered to adjust the discharge amount or stop the discharge, thereby achieving automatic control of the discharge amount and reducing labor intensity.

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0005] An electric flow regulator for a ore discharge hopper includes a feed chute and a conveyor belt. A baffle is movably connected to the discharge end of the feed chute. Vertically arranged guide columns are provided on both sides of the discharge end of the feed chute. Each guide column has a guide groove extending along its axial direction. The two sides of the baffle are inserted into the corresponding guide grooves and slidably connected to the inner wall of the guide groove. A gantry frame is installed above the discharge end of the feed chute. A drive mechanism for driving the baffle to rise and fall is provided on the gantry frame. Under the action of the drive mechanism, the baffle can be vertically raised and lowered relative to the feed chute to adjust the discharge amount or stop the discharge.

[0006] Furthermore, the electric flow regulator of the ore discharge hopper also includes a controller, and several weight sensors are spaced apart below the conveyor belt. The information output terminal of the weight sensors is connected to the controller, and the controller can adjust the working state of the drive mechanism according to the information transmitted by the weight sensors.

[0007] Furthermore, the electric flow regulator of the ore discharge hopper includes a drive mechanism comprising a motor, which is mounted on the top of the gantry frame. The output end of the motor is connected to the output shaft via a coupling. Both ends of the output shaft are rotatably connected to the bearings mounted on the top of the gantry frame. A spool is keyed to the output shaft, and a wire rope is wound around the spool. One end of the wire rope is fixedly connected to the spool, and the other end of the wire rope is fixedly connected to the upper edge of the baffle plate.

[0008] Furthermore, the electric flow regulator of the ore discharge hopper is equipped with a dust-blocking mechanism between the bottom sides of the baffle and the bottom of the corresponding guide groove. The dust-blocking mechanism can prevent dust from entering the guide groove.

[0009] Furthermore, the electric flow regulator of the ore discharge hopper includes a dust-blocking mechanism comprising an upper support and a lower support spaced apart. The upper support is fixedly connected to the bottom of the corresponding baffle, and the lower support is fixedly connected to the bottom of the corresponding guide groove. Several hinged telescopic components are respectively provided between the left end of the upper support and the left end of the lower support, and between the right end of the upper support and the right end of the lower support. Each telescopic component includes a first connecting rod, a second connecting rod, and a sliding rod. The two ends of the sliding rod slide in contact with the inner wall of the guide groove. The first connecting rod and the second connecting rod are arranged crosswise. The middle parts of the first connecting rod and the middle parts of the second connecting rod are hinged together. The lower ends of the first connecting rod and the lower ends of the second connecting rod are respectively hinged together with the two ends of the sliding rod. The upper ends of the first connecting rod and the upper ends of the second connecting rod are respectively hinged together with the two ends of the sliding rod of the adjacent telescopic component. Flexible dustproof nets are respectively provided between adjacent sliding rods. When the baffle is raised and lowered vertically, the flexible dustproof nets can be extended or folded and retracted by the upper support and the telescopic components.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] The electric flow regulator for the ore discharge hopper of this utility model has a baffle movably connected to the discharge end of the guide chute. A gantry frame spans the guide chute, and a motor is mounted on the gantry frame. A reel wound with a steel wire rope is fixedly sleeved on the motor output shaft. The other end of the steel wire rope is connected to the baffle. By rotating the motor forward or backward, the release amount of the steel wire rope on the reel is adjusted to achieve the purpose of adjusting the height of the baffle. Several weight sensors are spaced below the conveyor belt. The controller can control the working state of the motor based on the information transmitted by the weight sensors. Under the action of the motor, the baffle can be vertically raised and lowered relative to the guide chute to adjust the size of the discharge opening, adjust the discharge amount, or stop the discharge of ore, realizing automatic adjustment of the flow rate of the ore discharge hopper. No long-term on-site operation is required. After the electric flow regulator for the ore discharge hopper of this utility model is put into use, it has prevented the overload failure and shutdown of the conveyor belt, improved the disorderly spillage of materials, reduced the labor intensity of workers, and eliminated safety hazards. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the state of the electric flow regulator of the ore discharge hopper when the ore discharge is stopped.

[0013] Figure 2 This is a schematic diagram of the structure of the electric flow regulator for the ore discharge hopper in the feeding state of this utility model;

[0014] Figure 3 This is a three-dimensional structural diagram of the dust-blocking mechanism in this utility model;

[0015] In the above diagram: 1-Conveyor belt; 2-Baffle; 3-Guide column; 4-Gantry frame; 5-Spindle; 6-Motor; 7-Material chute; 8-Wire rope; 9-Weight sensor; 10-Dustproof mechanism; 10.1-Upper support; 10.2-Telescopic component; 10.21-First connecting rod; 10.22-Second connecting rod; 10.23-Slide rod; 10.3-Lower support. Detailed Implementation

[0016] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0017] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0019] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0020] Combined with appendix Figure 1-3 This invention details an electric flow regulator for a ore discharge hopper, comprising a feed chute 7 and a conveyor belt 1. A baffle 2 is movably connected to the discharge end of the feed chute 7. A raised anti-collision strip is provided on the side of the baffle 2 facing the incoming material direction. Wear-resistant rubber is provided at the bottom of the baffle 2. Vertically arranged guide columns 3 are provided on both sides of the discharge end of the feed chute 7. Each guide column 3 has a guide groove extending along its axial direction. Preferably, the guide groove is an I-shaped structure. The two sides of the baffle 2 are inserted into the corresponding guide grooves and slidably connected to the inner wall of the guide grooves. A gantry frame 4 spans above the discharge end of the feed chute 7. The bottom of the gantry frame 4 is fixed to the ground. A drive mechanism for driving the baffle 2 to rise and fall is provided on the gantry frame 4. The drive mechanism allows the baffle 2 to be vertically raised and lowered relative to the guide chute 7 to adjust the feeding amount or stop the feeding. In actual operation, when it is necessary to stop the feeding, the baffle 2 descends under the action of the drive mechanism and gravity to close the discharge end of the guide chute 7. When it is necessary to increase the feeding amount, the drive mechanism pulls the baffle 2 upward, which enlarges the discharge channel between the baffle 2 and the discharge end of the guide chute 7, thereby increasing the feeding amount and facilitating the discharge. When there is ore jamming or the feeding amount needs to be adjusted, workers do not need to manually adjust the position of the baffle at the discharge port of the ore feeder. This improves the situation of disorderly material spillage, reduces the labor intensity of workers, and avoids the safety hazards caused by workers manually adjusting the baffle at the discharge port of the ore feeder.

[0021] As an optional design, the electric flow regulator of the ore discharge hopper preferably also includes a controller. The controller is a programmable logic controller (PLC) capable of human-machine interaction. The PLC can be a Siemens S7-300 / 400 series product. Several weight sensors 9 are spaced below the conveyor belt 1. The information output terminals of the weight sensors 9 are connected to the controller. The controller can adjust the working state of the drive mechanism based on the information transmitted by the weight sensors 9. When the material carried on the conveyor belt 1 is within a set range, the weight sensors 9 send signals to the controller, which controls the drive mechanism to maintain its current power operation, i.e., maintain the current position of the baffle 2. When the material carried on the conveyor belt 1 is below or above the set value... When the material is within the specified range, the weight sensor 9 sends a signal to the controller. The controller then controls the drive mechanism to increase power and pull the baffle 2 upward, thus increasing the discharge port of the material chute 7 and increasing the discharge volume. Alternatively, the controller can control the drive mechanism to decrease power and lower the baffle 2, thus reducing the discharge port of the material chute 7 and decreasing the discharge volume. This achieves automatic control of the discharge volume, eliminating the need for long-term on-site supervision during ore feeding. When ore jamming occurs or the ore feeding volume needs to be adjusted, the controller automatically adjusts the feeding volume by controlling the baffle 2 to rise and fall based on the signal from the weight sensor 9. It should be noted that setting the weight sensor 9 below the conveyor belt 1 to measure the weight of the material on the conveyor belt is existing technology, therefore, the structure and setting method of the weight sensor 9 will not be described in detail here.

[0022] As an optional design, the preferred electric flow regulator for the ore discharge hopper includes a drive mechanism comprising a motor 6, which is fixedly mounted on the top of the gantry frame 4 via a motor bracket. The output end of the motor 6 is connected to an output shaft via a coupling. Both ends of the output shaft are rotatably connected to bearings mounted on the top of the gantry frame 4. A reel is fitted onto the output shaft, and the output shaft and the reel are keyed together, allowing the reel to rotate synchronously with the output shaft. A wire rope 8 is wound around the reel, with one end fixedly connected to the reel and the other end connected to a baffle 2. The upper edge is fixedly connected. By adjusting the forward or reverse rotation of the motor 6, the wire pulley 5 is driven to rotate in the forward or reverse direction, thereby adjusting the release amount of the wire rope 8 and adjusting the baffle 2 to a suitable position: When the baffle 2 needs to rise, the motor 6 drives the wire pulley 5 to rotate in the forward direction, making the release length of the wire rope 8 shorter. The lower end of the wire rope 8 is taut and pulls the baffle 2 upward. When the baffle 2 needs to fall, the motor 6 drives the wire pulley 5 to rotate in the reverse direction, making the release length of the wire rope 8 longer. At this time, the wire rope becomes loose and applies a pulling force to the baffle 2 that is less than its weight, so the baffle 2 falls.

[0023] As an optional design, the preferred electric flow regulator of the ore discharge hopper is provided with a dust blocking mechanism 10 between the bottom sides of the baffle 2 and the bottom of the corresponding guide groove. The dust blocking mechanism 10 can prevent dust from entering the guide groove and avoid jamming when the baffle 2 is raised or lowered due to foreign objects entering the guide groove.

[0024] As an optional design, the preferred electric flow regulator for the ore discharge hopper, the dust-blocking mechanism 10 includes an upper support 10.1 and a lower support 10.3 spaced apart. Preferably, the upper support 10.1 and the lower support 10.3 are I-shaped structures matched with the guide groove. The upper support 10.1 is fixedly connected to the bottom of the corresponding baffle 2, and the lower support 10.3 is fixedly connected to the bottom of the corresponding guide groove. Several hinged telescopic members 10.2 are respectively provided between the left end of the upper support 10.1 and the left end of the lower support 10.3, and between the right end of the upper support 10.1 and the right end of the lower support 10.3. Each telescopic member 10.2 includes a first connecting rod 10.21, a second connecting rod 10.22, and a sliding rod 10.23. The two ends of the sliding rod 10.23 slide in contact with the inner wall of the guide groove, and the first connecting rod 10.21 and the second connecting rod 10.22 intersect. The fork configuration involves hinged connections between the middle of the first link 10.21 and the middle of the second link 10.22. The lower ends of the first link 10.21 and the second link 10.22 are hinged to the two ends of the slide rod 10.23, respectively. The upper ends of the first link 10.21 and the second link 10.22 are hinged to the two ends of the slide rod 10.23 of the adjacent telescopic member 10.2, respectively. Flexible dustproof nets are provided between the adjacent slide rods 10.23. When the baffle 2 is raised and lowered vertically, the flexible dustproof nets can be extended or folded and retracted by the upper support 10.1 and the telescopic member 10.2. The two ends of the slide rod 10.23 are always in sliding contact with the inner wall of the guide groove, ensuring that the flexible dustproof net 10.2 is always in close contact with the side wall of the guide groove when it is extended to different lengths, thus preventing dust from entering the guide groove and causing jamming when the baffle 2 is raised and lowered.

[0025] The working process of this utility model is as follows:

[0026] First, based on the characteristics of the ore and the performance of the conveyor belt, the range of material carried on conveyor belt 1 is set in the controller. During the ore discharge process, the ore slides down the guide chute 7 onto conveyor belt 1. The weight sensor 9 measures the weight of the material carried on conveyor belt 1. When the weight of the material carried on conveyor belt 1 is lower or higher than the set range, the weight sensor 9 sends a signal to the controller. The controller controls the motor 6 to rotate forward. The motor 6 drives the pulley 5 to rotate forward through the output shaft, which shortens the release length of the wire rope 8. The lower end of the wire rope 8 is taut and pulls the baffle 2 upward, making the discharge port at the discharge end of the guide chute 7 larger and increasing the discharge volume. When the baffle 2 needs to be lowered... During descent, motor 6 drives pulley 5 to rotate in the opposite direction, increasing the release length of wire rope 8. At this time, the wire rope becomes looser, exerting a tension on baffle 2 that is less than its own weight. Baffle 2 descends, reducing the discharge port and decreasing the discharge volume. This achieves automatic control and adjustment of the ore discharge hopper flow rate, eliminating the need for long-term on-site supervision by workers. When ore jamming occurs or the discharge volume needs adjustment, workers do not need to manually adjust it at the discharge port of the ore discharge machine. After the electric flow rate regulator of the ore discharge hopper of this utility model was put into use, it prevented overload failures and shutdowns of the conveyor belt, improved the situation of disorderly material spillage, reduced the labor intensity of workers, and eliminated safety hazards.

[0027] The above description is only an application implementation of this utility model, but the protection scope of this utility model is not limited thereto and cannot be used to limit the scope of rights of this utility model. Any equivalent changes made according to the technical solution of this utility model should be included within the protection scope of this utility model.

Claims

1. An electric flow regulator for a ore discharge hopper, comprising a feed chute and a conveyor belt, characterized in that: A baffle is movably connected to the discharge end of the material chute. Vertically arranged guide columns are provided on both sides of the discharge end of the material chute. Guide grooves extending along the axial direction are provided in the guide columns. The two sides of the baffle are inserted into the corresponding guide grooves and slidably connected to the inner wall of the guide grooves. A gantry frame is installed above the discharge end of the material chute. A drive mechanism for driving the baffle to rise and fall is provided on the gantry frame. Under the action of the drive mechanism, the baffle can be vertically raised and lowered relative to the material chute to adjust the feeding amount or stop the feeding.

2. The electric regulator of the flow of the drawbell according to claim 1, characterized in that: It also includes a controller, and several weight sensors are arranged at intervals below the conveyor belt. The information output terminals of the weight sensors are connected to the controller, and the controller can adjust the working state of the drive mechanism according to the information transmitted by the weight sensors.

3. An electric flow regulator for a drawbell according to claim 1 or 2, characterised in that: The drive mechanism includes a motor, which is mounted on the top of the gantry frame. The output end of the motor is connected to the output shaft via a coupling. Both ends of the output shaft are rotatably connected to the bearings mounted on the top of the gantry frame. A spool is keyed to the output shaft, and a wire rope is wound on the spool. One end of the wire rope is fixedly connected to the spool, and the other end of the wire rope is fixedly connected to the upper edge of the baffle plate.

4. The electric flow regulator for the ore discharge hopper according to claim 3, characterized in that: A dust-blocking mechanism is provided between the bottom sides of the baffle and the bottom of the corresponding guide groove. The dust-blocking mechanism can prevent dust from entering the guide groove.

5. The electric regulator of the flow of the drawgate according to claim 4, characterized in that: The dust-blocking mechanism includes an upper support and a lower support spaced apart. The upper support is fixedly connected to the bottom of the corresponding baffle, and the lower support is fixedly connected to the bottom of the corresponding guide groove. Several telescopic components are provided between the left ends of the upper and lower supports and between the right ends of the upper and lower supports. Each telescopic component includes a first connecting rod, a second connecting rod, and a sliding rod. The two ends of the sliding rod slide in contact with the inner wall of the guide groove. The first and second connecting rods are arranged crosswise. The middle parts of the first and second connecting rods are hinged together. The lower ends of the first and second connecting rods are respectively hinged to the two ends of the sliding rod. The upper ends of the first and second connecting rods are respectively hinged to the two ends of the sliding rod of the adjacent telescopic component. Flexible dustproof nets are provided between adjacent sliding rods. When the baffle is raised and lowered vertically, the flexible dustproof nets can be extended or folded and retracted by the upper support and the telescopic components.

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