Vibrating screen for mining machinery

Abstract

The utility model discloses a mining machinery vibrating screen which comprises a screening box, connecting plates are fixedly installed on the inner walls of the two sides of the screening box, connecting rods are slidably installed on the upper end faces of the two connecting plates, and limiting plates are fixedly installed on the outer walls of the two connecting rods. The upper end faces of the two limiting plates are connected with the bottom wall of the connecting plate on the same side through elastic mechanisms, the ends of the two connecting rods are jointly and fixedly connected with a screening plate, an extrusion block is fixedly installed on the bottom wall of the screening plate, and a rotating shaft is rotatably installed in the screening box. And a first motor connected with the rotating shaft is fixedly mounted on the outer wall of the screening box. According to the ore screening device, the air cylinder, the lower pressing plate, the lower pressing rods and other assemblies are arranged, the air cylinder can drive the lower pressing plate to move downwards, blocked ore can be extruded through the multiple lower pressing rods while the lower pressing plate moves downwards, and therefore the blocked ore can be extruded to fall off from gaps of the screening plate, and dredging of the screening plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a mining machinery vibrating screen. Background Art

[0002] Vibrating screen is a commonly used screening equipment, used to separate and classify particulate materials according to their particle size. It mainly works through the vibration force and the screen. The vibrating screen spring assembly is a spring system used for vibrating screening equipment. The function of the vibrating screen spring assembly is to provide support and control the vibration movement of the vibrating screen to achieve effective screening operation.

[0003] When the vibrating screen of mining machinery is in use, it is excited by the vibration motor to achieve the screening of ore. In the prior art, most vibrating screens are prone to clogging of the screen holes during the screening process due to the irregular shape of the ore. Once a more serious blockage occurs, it is difficult to achieve self-unblocking by relying on the vibration ability of the vibrating screen itself. In severe cases, the vibrating screen cannot screen the ore, which is not practical enough. Therefore, it is necessary to redesign the vibrating screen of mining machinery to address the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a mining machinery vibrating screen.

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

[0006] The vibrating screen of mining machinery comprises a screening box, connecting plates are fixedly installed on the inner walls on both sides of the screening box, connecting rods are slidably installed on the upper end surfaces of the two connecting plates, limiting plates are fixedly installed on the outer walls of the two connecting rods, the upper end surfaces of the two limiting plates are connected to the bottom wall of the connecting plate on the same side through an elastic mechanism, the ends of the two connecting rods are commonly fixedly connected with a screening plate, the bottom wall of the screening plate is fixedly installed with an extrusion block, a rotating shaft is rotatably installed inside the screening box, a first motor connected to the rotating shaft is fixedly installed on the outer wall of the screening box, the outer wall of the rotating shaft is connected to the extrusion block through an extrusion mechanism, a first collecting box is slidably installed on the outer wall of the screening box through a pull-out opening, and the outer wall of the screening box is opened There is a screening opening connected to the interior, and a second collecting box cooperating with the screening opening is slidably installed on the outer wall of the screening box through a connecting frame. A cylinder is fixedly installed on the upper end surface of the screening box through a supporting frame, and a lower pressure plate is fixedly connected to the telescopic end of the cylinder, and a plurality of lower pressure rods cooperating with the screening plate are fixedly installed on the bottom wall of the lower pressure plate. A water pump is fixedly installed on the upper end surface of the supporting frame, and a connecting pipe is rotatably connected to the end of the water pump outlet pipe through a connecting mechanism, and a spray pipe is fixedly installed on the outer wall of the connecting pipe, and a plurality of spray holes connected to the interior are opened on the outer wall of the spray pipe, and a second motor is fixedly installed on the upper end surface of the supporting frame through a supporting mechanism, and the outer wall of the output shaft of the second motor is connected to the connecting pipe through a transmission mechanism.

[0007] Preferably, the elastic mechanism comprises a spring installed on the outer wall of the connecting rod, and two ends of the spring are elastically connected to the bottom wall of the connecting plate and the upper end surface of the limiting plate respectively.

[0008] Preferably, the extrusion mechanism comprises a cam fixedly mounted on the outer wall of the rotating shaft, and the bottom wall of the extrusion block is provided with an extrusion groove which rotates in cooperation with the cam.

[0009] Preferably, the connection mechanism comprises a connection sleeve fixedly mounted on the outer wall of the water pump outlet pipe, and the outer wall of the connection pipe is rotatably connected to the inner wall of the connection sleeve.

[0010] Preferably, the support mechanism comprises a support plate fixedly mounted on an upper end surface of the support frame, and the second motor is fixedly mounted on a bottom wall of the support plate.

[0011] Preferably, the transmission mechanism includes pulleys fixedly mounted on the outer wall of the connecting tube and the outer wall of the output shaft of the second motor, and the two pulleys are connected for transmission via a belt.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting up components such as a cylinder, a lower pressure plate and a lower pressure rod, the cylinder can drive the lower pressure plate to move downward. While the lower pressure plate moves downward, it can squeeze the blocked ore through multiple lower pressure rods, thereby squeezing the blocked ore out of the gap of the screen plate, thereby unblocking the screen plate.

[0014] 2. By setting up components such as a connecting pipe, a spray pipe and a pulley, the second motor can drive the connecting pipe to rotate through two pulleys connected by belts, and the connecting pipe then drives the spray pipe to rotate. With the rotation of the spray pipe, the spraying area of ​​the dust removal water can be expanded, thereby increasing the dust sedimentation treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the mining machinery vibrating screen proposed by the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the vertical section structure;

[0017] Figure 3 This is a side structural diagram of the mining machinery vibrating screen proposed by the utility model;

[0018] Figure 4 for Figure 2 A schematic diagram of the structure enlargement at point A;

[0019] Figure 5 for Figure 2 Schematic diagram of the enlarged structure at point B in FIG.

[0020] In the figure: 1 screening box, 2 connecting plate, 3 connecting rod, 4 limit plate, 5 spring, 6 screening plate, 7 extrusion block, 8 rotating shaft, 9 first motor, 10 cam, 11 first collecting box, 12 connecting frame, 13 second collecting box, 14 supporting frame, 15 cylinder, 16 lower pressure plate, 17 water pump, 18 connecting sleeve, 19 connecting pipe, 20 spray pipe, 21 supporting plate, 22 second motor, 23 pulley. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-5 The mining machinery vibrating screen includes a screening box 1, connecting plates 2 are fixedly installed on the inner walls of both sides of the screening box 1, connecting rods 3 are slidably installed on the upper end surfaces of the two connecting plates 2, and limiting plates 4 are fixedly installed on the outer walls of the two connecting rods 3. The upper end surfaces of the two limiting plates 4 are connected to the bottom wall of the connecting plate 2 on the same side through an elastic mechanism. The elastic mechanism includes a spring 5 installed on the outer wall of the connecting rod 3, and both ends of the spring 5 are elastically connected to the bottom wall of the connecting plate 2 and the upper end surface of the limiting plate 4 respectively. The limiting plate 4 can limit the connecting rod 3 to prevent it from detaching from the bottom wall of the connecting plate 2.

[0023] The ends of the two connecting rods 3 are commonly fixedly connected with a screening plate 6, the bottom wall of the screening plate 6 is fixedly installed with an extrusion block 7, a rotating shaft 8 is rotatably installed inside the screening box 1, a first motor 9 connected to the rotating shaft 8 is fixedly installed on the outer wall of the screening box 1, the outer wall of the rotating shaft 8 is connected to the extrusion block 7 through an extrusion mechanism, the extrusion mechanism includes a cam 10 fixedly installed on the outer wall of the rotating shaft 8, and the bottom wall of the extrusion block 7 is provided with an extrusion groove that rotates in cooperation with the cam 10.

[0024] The outer wall of the screening box 1 is slidably mounted with a first collecting box 11 through a pull-out opening, the outer wall of the screening box 1 is provided with a screening opening connected to the interior, the outer wall of the screening box 1 is slidably mounted with a second collecting box 13 that matches the screening opening through a connecting frame 12, the upper end surface of the screening box 1 is fixedly mounted with a cylinder 15 through a support frame 14, the telescopic end of the cylinder 15 is fixedly connected with a lower pressure plate 16, the bottom wall of the lower pressure plate 16 is fixedly mounted with a plurality of lower pressure rods that match the screening plate 6, the upper end surface of the support frame 14 is fixedly mounted with a water pump 17, the end of the outlet pipe of the water pump 17 is rotatably connected with a connecting pipe 19 through a connecting mechanism, and the connecting mechanism includes a connecting pipe fixedly mounted on the outer wall of the outlet pipe of the water pump 17 The sleeve 18, the outer wall of the connecting tube 19 is rotatably connected to the inner wall of the connecting sleeve 18, the outer wall of the connecting tube 19 is fixedly installed with a spray pipe 20, and the outer wall of the spray pipe 20 is provided with a plurality of spray holes connected with the inside, and the upper end surface of the support frame 14 is fixedly installed with a second motor 22 through a supporting mechanism, the supporting mechanism includes a supporting plate 21 fixedly installed on the upper end surface of the support frame 14, the second motor 22 is fixedly installed on the bottom wall of the supporting plate 21, and the outer wall of the output shaft of the second motor 22 is connected to the connecting tube 19 through a transmission mechanism, and the transmission mechanism includes a pulley 23 fixedly installed on the outer wall of the connecting tube 19 and the outer wall of the output shaft of the second motor 22, and the two pulleys 23 are connected and transmitted through a belt.

[0025] When the utility model is used, the inlet pipe of the water pump 17 is first fixedly connected to the external water pipe, and then the ore can be poured into the screening box 1. The ore can be on the upper end surface of the screening plate 6 inside the screening box 1. At this time, the first motor 9 can drive the rotating shaft 8 to rotate, and the rotating shaft 8 drives the cam 10 to rotate and contact the inner wall of the extrusion groove. At this time, the extrusion block 7 is subjected to force and can drive the connecting rod 3 to move upward and squeeze the spring 5 through the cooperation of the screening plate 6. When the cam 10 does not contact the inner wall of the extrusion groove, the screening plate 6 can be driven to move downward and reset through the connecting rod 3 under the elastic action of the spring 5. When the cam 10 continues to rotate and intermittently contacts the inner wall of the extrusion groove, the screening plate 6 can be shaken up and down reciprocatingly under the elastic action of the spring 5, thereby shaking and screening the ore. Smaller ores can fall into the first collection box 11 through the gap of the screening plate 6, and larger ores can slide into the second collection box 13 through the screening opening.

[0026] When the ore blocks the gap of the screening plate 6, the cylinder 15 can drive the lower pressure plate 16 to move downward. While moving downward, the lower pressure plate 16 can squeeze the blocked ore through multiple lower pressure rods, thereby squeezing the blocked ore out of the gap of the screening plate 6, thereby unblocking the screening plate 6. When a large amount of dust is generated during the screening process, the water pump 17 can pump dust-removing water from the external water pipe and pass the dust-removing water from its outlet pipe through the cooperation of the connecting sleeve 18 and the connecting pipe 19. The dust removal water is pumped out to the inside of the spray pipe 20, and the dust removal water is then sprayed out from the inside of the spray pipe 20 through multiple spray holes to spray and settle the dust entering the site, thereby preventing a large amount of dust from floating in the air and polluting the surrounding air and environment. At the same time, the second motor 22 can drive the connecting pipe 19 to rotate through two pulleys 23 connected by belts, and the connecting pipe 19 then drives the spray pipe 20 to rotate. With the rotation of the spray pipe 20, the spraying area of ​​the dust removal water can be expanded, thereby increasing the dust settling treatment effect.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mining machinery vibrating screen, comprising a screening box (1), characterized in that: The inner walls of both sides of the screening box (1) are fixedly installed with connecting plates (2), the upper end surfaces of the two connecting plates (2) are slidably installed with connecting rods (3), the outer walls of the two connecting rods (3) are fixedly installed with limiting plates (4), the upper end surfaces of the two limiting plates (4) are connected to the bottom wall of the connecting plate (2) on the same side through an elastic mechanism, the ends of the two connecting rods (3) are commonly fixedly connected with a screening plate (6), the bottom wall of the screening plate (6) is fixedly installed with an extrusion block (7), a rotating shaft (8) is rotatably installed inside the screening box (1), a first motor (9) connected to the rotating shaft (8) is fixedly installed on the outer wall of the screening box (1), the outer wall of the rotating shaft (8) is connected to the extrusion block (7) through an extrusion mechanism, a first collecting box (11) is slidably installed on the outer wall of the screening box (1) through a pull-out opening, the outer wall of the screening box (1) is provided with a screening opening connected to the interior, A second collecting box (13) cooperating with the screening opening is slidably mounted on the outer wall of the screening box (1) through a connecting frame (12); a cylinder (15) is fixedly mounted on the upper end surface of the screening box (1) through a supporting frame (14); a lower pressure plate (16) is fixedly connected to the telescopic end of the cylinder (15); a plurality of lower pressure rods cooperating with the screening plate (6) are fixedly mounted on the bottom wall of the lower pressure plate (16); a water pump (17) is fixedly mounted on the upper end surface of the supporting frame (14); an outlet pipe end of the water pump (17) is rotatably connected to a connecting pipe (19) through a connecting mechanism; a spray pipe (20) is fixedly mounted on the outer wall of the connecting pipe (19); a plurality of spray holes connected to the interior are opened on the outer wall of the spray pipe (20); a second motor (22) is fixedly mounted on the upper end surface of the supporting frame (14) through a supporting mechanism; and the outer wall of the output shaft of the second motor (22) is connected to the connecting pipe (19) through a transmission mechanism.

2. The mining machinery vibrating screen according to claim 1, characterized in that: The elastic mechanism comprises a spring (5) mounted on the outer wall of the connecting rod (3), and the two ends of the spring (5) are elastically connected to the bottom wall of the connecting plate (2) and the upper end surface of the limiting plate (4) respectively.

3. The mining machinery vibrating screen according to claim 2, characterized in that: The extrusion mechanism comprises a cam (10) fixedly mounted on the outer wall of the rotating shaft (8), and the bottom wall of the extrusion block (7) is provided with an extrusion groove which rotates in coordination with the cam (10).

4. The mining machinery vibrating screen according to claim 3, characterized in that: The connection mechanism comprises a connection sleeve (18) fixedly mounted on the outer wall of the outlet pipe of the water pump (17); the outer wall of the connection pipe (19) is rotatably connected to the inner wall of the connection sleeve (18).

5. The mining machinery vibrating screen according to claim 4, characterized in that: The support mechanism comprises a support plate (21) fixedly mounted on the upper end surface of the support frame (14), and the second motor (22) is fixedly mounted on the bottom wall of the support plate (21).

6. The mining machinery vibrating screen according to claim 5, characterized in that: The transmission mechanism comprises a pulley (23) fixedly mounted on the outer wall of the connecting tube (19) and the outer wall of the output shaft of the second motor (22), and the two pulleys (23) are connected for transmission via a belt.

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