Coal mining feeding linear vibrating screen

Abstract

The utility model discloses a coal mining feeding linear vibrating screen, and relates to the technical field of vibrating screens. The vibrating screen comprises a vibrating screen body, the vibrating screen body comprises a screen box, a screen mesh and a vibrating motor, the screen mesh is fixedly installed in the screen box, the vibrating motor is arranged at the bottom of the screen box, a supporting plate frame is rotatably installed on one side of the screen box, a positioning mechanism is arranged on the other side of the screen box, and a blocking part is arranged on the positioning mechanism. An opening and closing control mechanism is arranged between the screen box and the supporting plate frame, the opening and closing control mechanism is further connected with the positioning mechanism, and the opening and closing control mechanism pushes the supporting plate frame to rotate and enables the free end of the supporting plate frame to be supported on the blocking part of the positioning mechanism. According to the utility model, the distance between the limiting plate and the screen mesh is adjusted according to the material quantity of the batch of coal mineral aggregates poured on the screen mesh, so that the discharging speed is adjusted, and the condition that part of mineral aggregates are not fully screened and discharged out of the vibrating screen due to the fact that excessive materials fall at a time is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a linear vibrating screen for coal mining and feeding. Background Art

[0002] Linear vibrating screen is a screening equipment. During the coal mining process, a vibrating screen is needed to screen the crushed ore. Large particles of ore roll down from the upper layer of the vibrating screen, and small particles of ore fall from the lower layer of the vibrating screen to the conveyor belt, which are moved and loaded to the subsequent processing equipment. The linear vibrating screen is mainly composed of a screen box, a screen, a vibration motor, a shock-absorbing spring, a bracket, etc. Its working principle is to use a vibration motor to drive the device to vibrate, and the material is thrown up and screened on the screen to achieve the purpose of screening and grading the material.

[0003] When the existing linear vibrating screen is in use, when the ore is poured onto the screen, it is easy to pour too much material, and the screen fails to fully screen the ore. The large particles of ore located above the pouring layer will roll down from the upper layer of the vibrating screen with the small particles of ore, so that the screening process of the ore is not fully carried out, affecting the mining output of the coal mine. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a coal mining feeding linear vibrating screen to solve the problem that too much material is poured and the mineral material is not fully spread out on the screen for screening, that is, discharged from the vibrating screen.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] A linear vibrating screen for coal mining and feeding, comprising a vibrating screen body, the vibrating screen body comprising a screen box, a screen mesh and a vibrating motor, the screen mesh is fixedly installed inside the screen box, the vibrating motor is arranged at the bottom of the screen box, a supporting plate frame is rotatably installed on one side of the screen box, a positioning mechanism is arranged on the other side of the screen box, a blocking part is arranged on the positioning mechanism, an opening and closing control mechanism is arranged between the screen box and the supporting plate frame, the opening and closing control mechanism is also connected to the positioning mechanism, the opening and closing control mechanism drives the supporting plate frame to rotate, and makes the free end of the supporting plate frame supported on the blocking part of the positioning mechanism;

[0007] The supporting plate frame includes a plate frame, a rotating plate and an elastic rope. The plate frame is arranged in the screen box, one end of the plate frame is rotatably connected to the inner wall of the screen box, a rotating plate is fixedly installed on the surface of the plate frame, and the other end of the rotating plate is fixedly connected to the elastic rope. A through-port regulating mechanism is arranged inside the plate frame, a limit plate is movably installed at the bottom of the plate frame, and the moving end of the through-port regulating mechanism is connected to the limit plate;

[0008] The positioning mechanism includes a transmission plate, a first limit member and a second limit member. The transmission plate is arranged on the other side of the screen box. The middle part of the transmission plate is rotatably connected to the screen box. The first limit member is installed at the other end of the opening and closing control mechanism, and the second limit member is slidably installed on the other side of the screen box.

[0009] Furthermore, the vibrating screen body also includes an export plate and a shock-absorbing spring support seat. The export plate is fixedly installed on the front side of the screen box, and the shock-absorbing spring support seat is fixedly installed on the surface of the screen box. The number of the shock-absorbing spring support seats is multiple groups, and they are arranged in an array on the surface of the screen box.

[0010] Furthermore, the opening and closing control mechanism includes an electric push rod and a connecting frame, the electric push rod is fixedly installed on one side of the screen box, the connecting frame is slidably arranged on one side of the screen box, one end of the connecting frame is fixedly connected to the movable end of the electric push rod, and the movable end of the electric push rod is connected to the free end of the elastic rope, and the other end of the connecting frame is connected to the positioning mechanism.

[0011] Furthermore, the port regulating mechanism includes a dual-axis servo motor, a rotating shaft, a screw, a transmission wheel and a slider. The dual-axis servo motor is arranged on the top of the plate frame. The output end of the dual-axis servo motor is fixedly connected to the rotating shaft. The screw is rotatably installed on the plate frame. There are two screws symmetrically arranged at both ends of the plate frame, and the screws are arranged along the width direction of the plate frame. Each screw is connected to the rotating shaft on the corresponding side through a group of transmission wheels. A slider is installed on the external thread of the screw. The slider is slidably connected to the plate frame. A baffle rod is fixedly connected to the surface of the slider, and the baffle rod is fixedly connected to the limit plate.

[0012] Furthermore, the first limiting member includes a pressure rod and a limiting spring, the pressure rod is slidably plugged into the other end of the connecting frame, one end of the limiting spring is connected to the pressure rod, and the other end of the limiting spring is connected to the connecting frame;

[0013] The second limiting member includes a positioning plate and a connecting block. The positioning plate is slidably inserted into the other side of the screen box away from the supporting plate frame to form the blocking part. The connecting block is composed of a plate body and a rod body. The plate body is connected to the transmission plate. The rod body is fixedly installed on the surface of the plate body. A through groove is opened on the surface of the positioning plate, and the rod body is slidably arranged in the positioning plate.

[0014] The beneficial effects of the utility model are as follows:

[0015] The utility model drives the support plate frame to rotate inside the screen box through the opening and closing control mechanism, and at the same time pulls the first limit piece of the positioning mechanism to move, pushes the second limit piece of the positioning mechanism to be inserted into the screen box, and limits and fixes one end of the rotated support plate frame, and relies on the through-port regulating mechanism to drive its movable end to move up and down on the surface of the support plate frame. According to the material amount of the batch of coal and mineral materials poured on the screen, the height of the limit plate is adjusted, and the coal and mineral materials hit the limit plate and the support plate frame, and are blocked by them to slow down the rolling speed. The mineral materials pass between the rotating limit plate and the screen, and the discharge amount is controlled to avoid the situation that part of the mineral materials are not fully screened and discharged outside the vibrating screen due to excessive material falling at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first perspective;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0018] Figure 3 It is a schematic diagram of the first partial structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the second partial structure of the utility model;

[0020] Figure 5 It is a third partial cross-sectional schematic diagram of the utility model;

[0021] Figure 6 yes Figure 5 A magnified schematic diagram of the middle part;

[0022] Figure 7 It is a fourth partial side view schematic diagram of the utility model.

[0023] Figure numerals: 1. Vibrating screen body; 101. Screen box; 102. Screen mesh; 103. Export plate; 104. Shock-absorbing spring support seat; 105. Vibrating motor; 2. Opening and closing control mechanism; 201. Electric push rod; 202. Connecting frame; 3. Support plate frame; 301. Plate frame; 302. Rotating plate; 303. Elastic rope; 4. Port regulating mechanism; 401. Dual-axis servo motor; 402. Rotating shaft; 403. Screw; 404. Transmission wheel; 405. Slider; 5. Limiting plate; 6. Positioning mechanism; 601. Transmission plate; 602. Pressure rod; 603. Limiting spring; 604. Positioning plate; 605. Connecting block. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0025] Figure 1-Figure 7 It is the best embodiment of the utility model, and the following Figure 1 -Attached Figure 7 The utility model is further described.

[0026] Refer to the attached Figure 1-Figure 7 A linear vibrating screen for coal mining and feeding includes a vibrating screen body 1, which includes a screen box 101, a screen mesh 102 and a vibration motor 105. The screen mesh 102 is fixedly installed inside the screen box 101, and a vibration motor 105 is arranged at the bottom of the screen box 101. A support plate frame 3 is rotatably installed on one side of the screen box 101, and a positioning mechanism 6 is arranged on the other side of the screen box 101. A blocking part is arranged on the positioning mechanism 6. An opening and closing control mechanism 2 is arranged between the screen box 101 and the support plate frame 3, and the opening and closing control mechanism 2 is also connected to the positioning mechanism 6. The opening and closing control mechanism 2 drives the support plate frame 3 to rotate, and supports the free end of the support plate frame 3 on the blocking part of the positioning mechanism 6.

[0027] The supporting plate frame 3 includes a plate frame 301, a rotating plate 302 and an elastic rope 303. The plate frame 301 is arranged in the screen box 101. One end of the plate frame 301 is rotatably connected to the inner wall of the screen box 101. The rotating part of the plate frame 301 is fixedly installed with a rotating plate 302, and the other end of the rotating plate 302 is fixedly connected with the elastic rope 303. The interior of the plate frame 301 is provided with a through-hole regulating mechanism 4. A limit plate 5 is installed at the bottom of the plate frame 301 in a liftable manner, and the moving end of the through-hole regulating mechanism 4 is connected to the limit plate 5 and drives it to rise and fall, so as to adjust the distance between the limit plate 5 and the screen 102, thereby adjusting the movement speed of the mineral material on the screen 102.

[0028] The positioning mechanism 6 includes a transmission plate 601, a first limit member and a second limit member. The transmission plate 601 is arranged on the other side of the screen box 101. The middle part of the transmission plate 601 is rotatably connected to the screen box 101. The first limit member is installed at the other end of the opening and closing control mechanism 2. The second limit member is slidably installed on the other side of the screen box 101 and is connected to the transmission plate 601.

[0029] The coal material is vibrated and screened by the vibrating screen body 1, the support plate frame 3 is driven to rotate inside the vibrating screen body 1 by the extension and retraction of the opening and closing control mechanism 2, and the retraction and extension of the positioning mechanism 6 in the vibrating screen body 1 are controlled, the support plate frame 3 is rotated and horizontally blocked in the vibrating screen body 1, so that the limit plate 5 blocks and limits the rolling of the coal material, and the mobile end is driven to move up and down by the through-port regulating mechanism 4 to control the maximum rotatable range of the limit plate 5, and the rotatable limit plate 5 is used to block and limit the flow of the coal material on the vibrating screen body 1 to slow down its falling speed, so as to prevent the coal material from being discharged from the vibrating screen without being fully screened, and one end of the support plate frame 3 is limited and fixed by the positioning mechanism 6, so that the blocking process of the support plate frame 3 on the material after rotation is more stable.

[0030] The vibration screen body 1 also includes an output plate 103 and a shock-absorbing spring support seat 104. The output plate 103 is a groove-shaped opening facing upward. The output plate 103 is fixedly installed on the discharging side of the screen box 101. Shock-absorbing spring support seats 104 are fixedly installed on both sides of the screen box 101. The number of shock-absorbing spring support seats 104 is multiple groups, and they are arranged in an array on the surface of the screen box 101. Specifically, the output plate 103 guides the upper layer of mineral materials after vibration screening to slide and discharge, and the shock-absorbing spring support seat 104 supports the entire device so that it is in a vibrating state and can be placed stably. The shock-absorbing spring support seat 104 can use the existing support of the vibration screen.

[0031] The opening and closing control mechanism 2 includes an electric push rod 201 and a connecting frame 202. The electric push rod 201 is fixedly installed on one side of the screen box 101, and the connecting frame 202 is slidably arranged on one side of the screen box 101. One end of the connecting frame 202 is fixedly connected to the movable end of the electric push rod 201, and the movable end of the electric push rod 201 is also connected to the free end of the elastic rope 303. A slot is provided on one side of the screen box 101. The elastic rope 303 and the rotating plate 302 can pass through the slot during the rotation of the plate frame 301. The other end of the connecting frame 202 is connected to the positioning mechanism 6. Specifically, the connecting frame 202 slides along the screen box 101 by pulling the electric push rod 201 to extend and retract, and the rotation of the supporting plate frame 3 is controlled by the electric push rod 201, and the sliding of the limiter of the positioning mechanism 6 is controlled by the connecting frame 202.

[0032] The port regulating mechanism 4 includes a dual-axis servo motor 401, a rotating shaft 402, a screw 403, a transmission wheel 404 and a slider 405. The dual-axis servo motor 401 is arranged at the top of the plate frame 301. The two output ends of the dual-axis servo motor 401 are fixedly connected to the rotating shaft 402. The screw 403 is rotatably installed on the plate frame 301. There are two screws 403 symmetrically arranged at both ends of the plate frame 301, and the screws 403 are arranged along the width direction of the plate frame 301. Each screw 403 is connected to the rotating shaft 402 on the corresponding side through a group of transmission wheels 404. The transmission wheels 404 are bevel gears. The two bevel gears in each group are meshed with each other and are respectively fixedly connected to the rotating shaft 402 and the screw 403 on the corresponding side. Each screw rod 403 is externally threaded with a slider 405, which is slidably connected to the plate frame 301, and a stopper is fixedly connected to the surface of the slider 405, which is fixedly connected to the limit plate 5. There are multiple groups of sliders 405, which are arranged equidistantly on the surface of the screw rod 403. Specifically, the dual-axis servo motor 401 drives the rotating shaft 402 to rotate, and the transmission wheel 404 transmits the power to the screw rod 403, so that the screw rod 403 rotates, and the screw rod 403 drives the slider 405 to move up and down inside the plate frame 301 to adjust the height position of the stopper.

[0033] There are two groups of screw rods 403 and sliders 405 , and the two groups of screw rods 403 and sliders 405 are respectively located on the left and right sides of the limiting plate 5 , thereby ensuring the stability of the limiting plate 5 .

[0034] The first limiting member includes a pressure rod 602 and a limiting spring 603 . The pressure rod 602 is slidably plugged into the other end of the connecting frame 202 . One end of the limiting spring 603 is connected to the pressure rod 602 , and the other end of the limiting spring 603 is connected to the connecting frame 202 .

[0035] The second limiting member includes a positioning plate 604 and a connecting block 605. The positioning plate 604 is slidably inserted into the side of the screen box 101 away from the supporting plate frame 3 to form a blocking portion. The connecting block 605 is composed of a plate body and a rod body. The plate body is connected to the transmission plate 601. The rod body is fixedly installed on the surface of the plate body. A through groove is opened on the surface of the positioning plate 604, and the rod body can be slidably arranged in the through groove of the positioning plate 604.

[0036] Specifically, the pressure rod 602 and the limit spring 603 are pulled by the connecting frame 202 to move, so that the pressure rod 602 moves along one end of the transmission plate 601 to the other end. During the movement, the limit spring 603 is compressed, and the transmission plate 601 is pushed to rotate by relying on the pressure rod 602 and the limit spring 603, so that the positioning plate 604 at the other end of the transmission plate 601 is pushed into the screen box 101, and the plate frame 301 is limited. Through the connecting block 605, the rotating transmission plate 601 can drive the positioning plate 604 to extend into or out of the screen box 101.

[0037] In summary: when the utility model is used, the staff will place the device between the conveying equipment and the dumping hopper, start the vibrating screen body 1, and pour the coal ore onto the surface of the screen 102. The vibrating motor 105 drives the vibrating screen body 1 to vibrate. Large particles of ore roll down along the screen 102 and the outlet plate 103 and are discharged. Small particles of ore pass through the screen 102 and fall onto the conveying equipment, and are transported to the subsequent processing equipment. If it is necessary to improve the processing efficiency of the ore, quickly pour the ore onto the vibrating screen body 1. In order to avoid the situation that the ore material dumps too quickly and causes insufficient screening, the staff judges that the flow needs to be limited according to the amount of coal material to be unloaded, and starts the electric push rod 201 before unloading. The electric push rod 201 contracts, drives the connecting frame 202 to move along the screen box 101, pulls the elastic rope 303 and the rotating plate 302 to slide through the slot, and the plate frame 301 is pulled by it to rotate and is placed horizontally above the screen 102. At the same time, the connecting frame 202 drives the limit spring 603 and the pressure rod 602 along the transmission plate 6 01 moves and pushes the positioning plate 604 to insert it into the screen box 101 to form a blocking portion. Since the end of the positioning plate 604 is inclined, during the rotation of the free end of the plate frame 301, the positioning plate 604 will be pushed out of the screen box 101 and the limit spring 603 will be compressed. After the plate frame 301 moves to the upper side of the positioning plate 604, the positioning plate 604 will reset and extend into the screen box 101 again, thereby blocking the other end of the plate frame 301 to ensure its horizontal stability and start the double The shaft servo motor 401 drives the rotating shaft 402 to rotate, and through the transmission of the transmission wheel 404, the screw 403 rotates to drive the slider 405 to rise and fall, and then drives the limit plate 5 to rise and fall through the baffle rod to adjust the height position of the limit plate 5, control the distance between the limit plate 5 and the screen 102, dump the coal ore onto the device, rely on the limit plate 5 and the plate frame 301 to block the ore, and pass between the limit plate 5 and the screen 102. While ensuring the sliding speed, the vibration screening of the ore is stably carried out.

[0038] When the amount of ore dumping is normal, the electric push rod 201 can be extended to push the connecting frame 202 to slide along the screen box 101, the pressure rod 602 and the limit spring 603 return to their original positions, the positioning plate 604 is pulled out of the screen box 101 by the rotating transmission plate 601, and the limiting of the plate frame 301 is stopped. The plate frame 301 rotates from the horizontal state to the vertical state and fits against the inner wall of the corresponding side of the screen box 101.

[0039] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A linear vibrating screen for coal mining and feeding, characterized in that: The vibrating screen body (1) comprises a screen box (101), a screen mesh (102) and a vibration motor (105); the screen mesh (102) is fixedly installed inside the screen box (101); the vibration motor (105) is arranged at the bottom of the screen box (101); a support plate frame (3) is rotatably installed on one side of the screen box (101); a positioning mechanism (6) is arranged on the other side of the screen box (101); a blocking portion is arranged on the positioning mechanism (6); an opening and closing control mechanism (2) is arranged between the screen box (101) and the support plate frame (3); the opening and closing control mechanism (2) is also connected to the positioning mechanism (6); the opening and closing control mechanism (2) drives the support plate frame (3) to rotate, and enables the free end of the support plate frame (3) to be supported on the blocking portion of the positioning mechanism (6); The support plate frame (3) comprises a plate frame (301), a rotating plate (302) and an elastic rope (303); the plate frame (301) is arranged in the screen box (101); one end of the plate frame (301) is rotatably connected to the inner wall of the screen box (101); a rotating plate (302) is fixedly mounted on the surface of the plate frame (301); the other end of the rotating plate (302) is fixedly connected to the elastic rope (303); an opening regulating mechanism (4) is arranged inside the plate frame (301); a limit plate (5) is movably mounted on the bottom of the plate frame (301); and a movable end of the opening regulating mechanism (4) is connected to the limit plate (5); The positioning mechanism (6) comprises a transmission plate (601), a first limiting member and a second limiting member, the transmission plate (601) being arranged on the other side of the screen box (101), the middle portion of the transmission plate (601) being rotatably connected to the screen box (101), the first limiting member being mounted on the other end of the opening and closing control mechanism (2), and the second limiting member being slidably mounted on the other side of the screen box (101).

2. A coal mining feeding linear vibrating screen according to claim 1, characterized in that: The vibrating screen body (1) further comprises a guide plate (103) and a shock-absorbing spring support seat (104); the guide plate (103) is fixedly mounted on the front side of the screen box (101); the shock-absorbing spring support seat (104) is fixedly mounted on the surface of the screen box (101); the shock-absorbing spring support seats (104) are provided in a plurality of groups and are arranged in an array on the surface of the screen box (101).

3. A linear vibrating screen for coal mining and feeding according to claim 1, characterized in that: The opening and closing control mechanism (2) comprises an electric push rod (201) and a connecting frame (202); the electric push rod (201) is fixedly mounted on one side of the screen box (101); the connecting frame (202) is slidably arranged on one side of the screen box (101); one end of the connecting frame (202) is fixedly connected to the movable end of the electric push rod (201), and the movable end of the electric push rod (201) is connected to the free end of the elastic rope (303); and the other end of the connecting frame (202) is connected to the positioning mechanism (6).

4. A linear vibrating screen for coal mining and feeding according to claim 1, characterized in that: The port regulating mechanism (4) comprises a double-axis servo motor (401), a rotating shaft (402), a screw (403), a transmission wheel (404) and a slider (405). The double-axis servo motor (401) is arranged at the top of the plate frame (301). The output end of the double-axis servo motor (401) is fixedly connected to the rotating shaft (402). The screw (403) is rotatably mounted on the plate frame (301). The screws (403) are symmetrically arranged at both ends of the plate frame (301), and the screws (403) are arranged along the width direction of the plate frame (301). Each screw (403) is connected to the rotating shaft (402) on the corresponding side via a group of transmission wheels (404). The slider (405) is installed with an external thread of the screw (403). The slider (405) is slidably connected to the plate frame (301). A stopper is fixedly connected to the surface of the slider (405), and the stopper is fixedly connected to the limit plate (5).

5. A linear vibrating screen for coal mining and feeding according to claim 1, characterized in that: The first limiting member comprises a pressure rod (602) and a limiting spring (603); the pressure rod (602) is slidably plugged into the other end of the connecting frame (202); one end of the limiting spring (603) is connected to the pressure rod (602); and the other end of the limiting spring (603) is connected to the connecting frame (202); The second limiting member comprises a positioning plate (604) and a connecting block (605); the positioning plate (604) is slidably plugged into the other side of the screen box (101) away from the supporting plate frame (3) to form the blocking portion; the connecting block (605) is composed of a plate body and a rod body; the plate body is connected to the transmission plate (601); the rod body is fixedly mounted on the surface of the plate body; a through groove is provided on the surface of the positioning plate (604); the rod body is slidably arranged in the positioning plate (604).

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