Screening device for mineral exploration

Abstract

The invention discloses a screening device for mineral exploration, which relates to the technical field of mineral screening equipment and comprises a u-shaped bottom plate, a trapezoidal side plate, a conveying belt, a first box body, a second box body, a first screening plate, a second screening plate, a driving motor, a transmission mechanism, a reciprocating mechanism, a blowing mechanism and a vibrating mechanism. The two trapezoidal side plates are both driven by a vibration mechanism to move, the conveying belt is driven by a transmission mechanism to move, and an air blowing mechanism is arranged between the two trapezoidal side plates. The air blowing mechanism can blow ore materials with small mass into the second box body located on the front side, and ore materials with large mass are conveyed to the positions above the two screening plates under conveying of the conveying belt.

Description

Technical Field

[0001] The present invention relates to the technical field of mineral screening equipment, and particularly relates to a screening device for prospecting minerals. Background Art

[0002] Geological exploration refers to the investigation and detection of geology through various methods to determine a suitable bearing layer, determine the foundation type according to the bearing capacity of the foundation of the bearing layer, and calculate the foundation parameters. During the geological exploration process, geological sampling is usually required, and there are a large number of minerals inside the geology. After obtaining this part of mineral resources, it is necessary to classify them to facilitate the study of the composition of the geology and thus understand the geological structure.

[0003] In the prior art, the collected minerals are usually placed in a screening machine. However, in traditional screening machines, it is necessary for workers to shovel the minerals onto the conveyor belt manually, which increases the labor intensity of the workers. Moreover, after the ore is shoveled onto the conveyor belt manually, the ore pile is in a hill state. During the process of falling onto the sieve plate by gravity, the gravity of the ore pile may be too concentrated on a single point of the sieve plate, easily causing the problem of damaging the sieve plate.

[0004] To solve the above problems, a screening device for prospecting minerals is now proposed. Summary of the Invention

[0005] The present invention aims at the above problems and provides a screening device for prospecting minerals, which solves the problems in the prior art that the collected minerals are usually placed in a screening machine, and in traditional screening machines, it is necessary for workers to shovel the minerals onto the conveyor belt manually, increasing the labor intensity of the workers. Moreover, after the ore is shoveled onto the conveyor belt manually, the ore pile is in a hill state. During the process of falling onto the sieve plate by gravity, the gravity of the ore pile may be too concentrated on a single point of the sieve plate, easily causing the problem of damaging the sieve plate.

[0006] The technical solution adopted by the present invention is as follows: it includes a U-shaped bottom plate, trapezoidal side plates, a horizontal connecting plate, a horizontal mounting plate, a conveyor belt, a mounting box body, a first box body, a second box body, a first sieve plate, a second sieve plate, a driving motor, a transmission mechanism, a reciprocating mechanism, a blowing mechanism, and a vibrating mechanism; Trapezoidal side plates are respectively movably arranged on the inner walls of the two vertical plates of the U-shaped bottom plate, and the same horizontal connecting plate is fixedly arranged between the upper cross plates of the two trapezoidal side plates; A first box body is arranged below the horizontal connecting plate. The first box body is detachably arranged above the cross plate of the U-shaped bottom plate, and a first sieve plate and a second sieve plate are respectively movably arranged between the first box body and the horizontal connecting plate; Both the first sieve plate and the second sieve plate are driven to move by a reciprocating mechanism; A mounting box body is fixedly provided on the rear wall of the middle end of the horizontal connecting plate, and the reciprocating mechanism is arranged in the mounting box body; Both of the two trapezoidal side plates are driven to move by a vibration mechanism; The same conveyor belt is movably arranged between the two trapezoidal side plates, and the conveyor belt is driven to move by a transmission mechanism; Horizontal mounting plates are respectively fixedly provided on the outer walls of the two trapezoidal side plates, and the two horizontal mounting plates are respectively movably arranged above the vertical plates of the U-shaped bottom plate close to them; A driving motor is provided at the upper end of the horizontal mounting plate on the right side. The driving motor is fixedly arranged at the upper end of the horizontal mounting plate close to it through a frame, and the output end of the driving motor drives the transmission mechanism and the vibration mechanism to work through rotation respectively; The reciprocating mechanism is driven to work by the transmission mechanism; A blowing mechanism is arranged between the two trapezoidal side plates, and the blowing mechanism is arranged inside the conveyor belt; The blowing mechanism is driven to work by the transmission mechanism; A second box body is provided behind the first box body, and the second box body is detachably arranged on the upper end of the cross plate of the U-shaped bottom plate; A baffle is fixedly provided at the upper end of the rear wall of the second box body.

[0007] Further, the reciprocating mechanism includes a first bevel gear, a second bevel gear, a first movable plate, a second movable plate, a first connecting rod, a second connecting rod, a second fixed shaft, a third connecting rod, a fourth connecting rod, and a first vertical mounting plate; A first vertical mounting plate is fixedly provided on the front wall of the horizontal connecting plate. The first ends of the first rotating shafts are rotatably provided on the rear wall of the first vertical mounting plate and the front wall of the mounting box body respectively, and the second ends of the two first rotating shafts are respectively fixedly provided with the first ends of the third connecting rods; The second ends of the two third connecting rods are respectively fixedly provided with the first ends of the first fixed shafts, and the first ends of the fourth connecting rods are respectively fixedly provided on the outer walls of the second ends of the two first fixed shafts; The same second fixed shaft is fixedly provided between the second ends of the two fourth connecting rods; The first ends of the second connecting rods are rotatably sleeved on the outer walls of the two first fixed shafts; The first end of the first connecting rod is rotatably sleeved on the outer wall of the middle end of the second fixed shaft; Two first rectangular through grooves are respectively provided on the horizontal connecting plate, and first rectangular sliders are respectively slidably arranged in the two first rectangular through grooves. The upper ends of the two first rectangular sliders are respectively fixedly provided with a first movable plate and a second movable plate; The outer walls of the second movable plates are respectively provided with first connecting frames, and the second ends of the two second connecting rods are respectively rotatably sleeved on the outer walls of the second connecting frames close to them; The middle part of the left side wall of the first movable plate is fixedly provided with a second connecting frame, and the second end of the first connecting rod is rotatably arranged in the second connecting frame; The first sieve plate and the second sieve plate are respectively arranged at the lower ends of the two first rectangular sliders through connecting rods; The first sieve plate is movably arranged above the second sieve plate; The first rotating shaft close to the installation box rotatably penetrates the front wall of the installation box close to it and is fixedly provided with a second bevel gear. The right side of the second bevel gear is meshed with a first bevel gear, and the first bevel gear is rotatably arranged in the right side wall of the installation box through a second rotating shaft; The second rotating shaft is driven to rotate by the transmission mechanism.

[0008] Further, the transmission mechanism includes a first sprocket, a second sprocket, a third sprocket, a fourth sprocket, and a second vertical mounting plate; The upper end of the rear wall of the trapezoidal side plate on the right side is fixedly provided with a second vertical mounting plate, and the second rotating shaft is rotatably arranged between the right wall of the installation box body and the second vertical mounting plate; The right end of the second rotating shaft is fixedly provided with a first sprocket, and the first sprocket is rotatably arranged on the right wall of the second vertical mounting plate; The outer sides of the right walls of the trapezoidal side plates on the right side are respectively rotatably provided with a second sprocket, a third sprocket, and a fourth sprocket; The outer walls of the first sprocket, the second sprocket, the third sprocket, and the fourth sprocket are sleeved and meshed with the same first chain; Both the fourth sprocket and the second sprocket are rotatably arranged on the outer walls of the trapezoidal side plates close to them through belt pulleys. The two belt pulleys are both movably arranged between the two trapezoidal side plates. The outer wall of the belt pulley close to the fourth sprocket is fixedly connected to the output shaft of the drive motor through a fixed shaft, and the fixed shaft is rotatably arranged between the trapezoidal side plate on the right side; The two belt pulleys are respectively rotatably arranged between the two trapezoidal side plates; A first support rotating shaft is movably arranged above the belt pulley close to the second sprocket, and a second support rotating shaft is arranged on the front side of the first support rotating shaft; The conveyor belt is respectively meshed and sleeved on the outer sides of the two belt pulleys; The first support rotating shaft and the second support rotating shaft are respectively arranged to roll inside the conveyor belt; The first support rotating shaft and the second support rotating shaft are arranged on the same horizontal plane; The third sprocket is rotatably arranged on the outer wall of the trapezoidal side plate close to it through a fifth rotating shaft; The fifth rotating shaft drives the blowing mechanism to work through rotation; The pulley close to the fourth sprocket drives the vibration mechanism to work through rotation.

[0009] Further, the blowing mechanism includes a third bevel gear, a fourth bevel gear, a fifth sprocket, a sixth sprocket, a fan blade, and a third vertical mounting plate; The same third vertical mounting plate is fixedly arranged between the two trapezoidal side plates, and the third vertical mounting plate is arranged inside the conveyor belt; A fifth sprocket is rotatably arranged in the middle of the front wall of the third vertical mounting plate through a third rotating shaft; Sixth sprockets are respectively arranged on both sides of the fifth sprocket, and the two sixth sprockets are rotatably arranged on the front wall of the third vertical mounting plate through fourth rotating shafts; The diameters of the two sixth sprockets are both smaller than the diameter of the fifth sprocket; The third rotating shaft and the two fourth rotating shafts respectively rotate through the third vertical mounting plate and are fixedly provided with fan blades; A plurality of ventilation holes are arranged on the conveyor belt; A fourth bevel gear is fixedly arranged at the front end of the third rotating shaft, and the fourth bevel gear is arranged on the front side of the fifth sprocket; A third bevel gear is meshed on the right side of the fourth bevel gear, and the fifth rotating shaft rotates through the trapezoidal side plate close to it and is fixedly connected to the third bevel gear.

[0010] Further, the vibration mechanism includes a disc, a fifth connecting rod, a second rectangular slider, a horizontal movable rod, a spur gear, a rack plate, and a cam; The lower parts of the front ends of the two trapezoidal side plates are respectively rotatably arranged between the inner walls of the vertical plates at the front ends of the U-shaped bottom plates close to them; A slide rail is fixedly arranged on the outer wall of the vertical plate of the U-shaped bottom plate on the left side, a second rectangular slider is slidably arranged in the slide rail, a first connecting shaft is fixedly arranged on the outer wall of the second rectangular slider, and the first end of the fifth connecting rod is rotatably sleeved on the outer wall of the first connecting shaft; The other end of the pulley close to the fourth sprocket rotates through the trapezoidal side plate close to it and is fixedly provided with a disc, and the disc is movably arranged above the horizontal mounting plate close to it; A second connecting shaft is fixedly arranged at an eccentric position on the outer wall of the disc; The second end of the fifth connecting rod is rotatably sleeved on the outer wall of the second connecting shaft; A second rectangular through groove is arranged on the inner wall of the slide rail; A horizontal movable rod is fixedly arranged on the inner wall of the second rectangular slider, and the horizontal movable rod is slidably penetrated between the horizontal movable rod and the second rectangular through groove; A rack plate is fixedly arranged at the right end of the horizontal movable rod, and the rack plate is slidably arranged on the inner side wall of the vertical plate of the U-shaped bottom plate on the right side; A straight gear is meshed with the upper end of the rack plate, and the straight gear is rotatably arranged on the inner wall of the vertical plate of the U-shaped bottom plate close to it through a sixth rotating shaft; The other end of the sixth rotating shaft rotatably penetrates through the vertical plate of the U-shaped bottom plate close to it and is fixedly provided with a cam, and the cam is rollingly arranged at the lower end of the horizontal mounting plate close to it.

[0011] Furthermore, both the first sieve plate and the second sieve plate are U-shaped sieve plates, and U-shaped through grooves matching with the U-shaped sieve plates are arranged on the side walls of the two trapezoidal side plates. The two U-shaped sieve plates are respectively slidably penetrated between the U-shaped sieve plates and the U-shaped through grooves close to them.

[0012] Advantages of the present invention: The vibration mechanism of the present invention can make the ore on the conveyor belt bump and flatten, avoiding falling on a single point on the sieve plate during the subsequent falling process and causing damage to the sieve plate. The blowing mechanism of the present invention can blow the ore materials with small mass into the second box body located in the front. The ore materials with larger mass are transported above the two sieve plates under the transmission of the conveyor belt. The two sieve plates can respectively perform further screening on the ore materials with larger mass under the drive of the reciprocating mechanism, and the screened ore materials are respectively isolated in the two sieve plates and the first box body located below, realizing the function of multi-stage screening.

[0013] In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. The following will refer to the drawings to make a further detailed description of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the transmission mechanism of the present invention; Figure 3 It is a schematic diagram of the working principle of the vibration mechanism of the present invention; Figure 4 It is a schematic diagram of the installation position of the two trapezoidal side plates of the present invention; Figure 5Schematic diagram of the working principle of the reciprocating mechanism of the present invention; Figure 6 Schematic diagram of the overall structure of the reciprocating mechanism of the present invention; Figure 7 Schematic diagram of the overall structure of the U-shaped bottom plate of the present invention; Figure 8 Schematic diagram of the mechanism inside the U-shaped bottom plate of the present invention; Figure 9 Schematic diagram of the overall structure of the vibration mechanism of the present invention; Figure 10 Schematic diagram of the working principle of the blowing mechanism of the present invention; Figure 11 Top view of the overall structure of the blowing mechanism of the present invention; Figure 12 Schematic diagram of the installation position of the second box body of the present invention; Figure 13 Schematic diagram of the working principle of the blowing mechanism of the present invention; Figure 14 Schematic diagram of the movement principle of the first sieve plate and the second sieve plate of the present invention; Figure 15 Schematic diagram of the installation positions of the blowing mechanism and the vibration mechanism of the present invention.

[0016] Reference numerals: 1 is the U-shaped bottom plate, 2 is the trapezoidal side plate, 3 is the cam, 4 is the fourth sprocket, 5 is the third sprocket, 6 is the second sprocket, 7 is the first sprocket, 8 is the installation box body, 9 is the conveyor belt, 10 is the second rectangular slider, 11 is the horizontal connecting plate, 12 is the first movable plate, 13 is the second movable plate, 14 is the first vertical mounting plate, 15 is the first bevel gear, 16 is the second bevel gear, 17 is the third connecting rod, 18 is the fourth connecting rod, 19 is the second connecting rod, 20 is the first connecting rod, 21 is the second fixed shaft, 22 is the fifth connecting rod, 23 is the disc, 24 is the spur gear, 25 is the rack plate, 26 is the third bevel gear, 27 is the fourth bevel gear, 28 is the fifth sprocket, 29 is the sixth sprocket, 30 is the third vertical mounting plate, 31 is the fan blade, 32 is the second box body, 33 is the first box body; 101 is the slide rail, 1011 is the second rectangular through groove; 201 is the horizontal mounting plate, 202 is the second vertical mounting plate; 901 is the ventilation hole; 1001 is the horizontal movable rod; 1101 is the first rectangular through groove; 1201 is the second connecting frame, 1202 is the first sieve plate; 1301 is the first connecting frame, 1302 is the second sieve plate; 3201 is the baffle. Detailed Embodiments

[0017] In order to make the objectives, technical solutions and advantages of the invention more clear and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] In the description of the invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0019] Reference Figures 1 to 15 , a screening device for prospecting minerals, comprising a U-shaped bottom plate 1, trapezoidal side plates 2, a horizontal connecting plate 11, a horizontal mounting plate 201, a conveyor belt 9, a mounting box 8, a first box 33, a second box 32, a first sieve plate 1202, a second sieve plate 1302, a driving motor, a transmission mechanism, a reciprocating mechanism, a blowing mechanism, and a vibrating mechanism; Trapezoidal side plates 2 are respectively movably installed on the inner walls of the two vertical plates of the U-shaped bottom plate 1. A same horizontal connecting plate 11 is fixedly installed between the upper cross plates of the two trapezoidal side plates 2. The horizontal connecting plate 11 is used to connect the two trapezoidal side plates 2 into a whole, and at the same time provides an installation platform for the reciprocating mechanism described later; A first box 33 is installed below the horizontal connecting plate 11. The first box 33 is detachably installed above the cross plate of the U-shaped bottom plate 1. A first sieve plate 1202 and a second sieve plate 1302 are respectively movably installed between the first box 33 and the horizontal connecting plate 11; Both the first sieve plate 1202 and the second sieve plate 1302 are driven to move by a reciprocating mechanism. The first sieve plate 1202 and the second sieve plate 1302 can reciprocate under the drive of the reciprocating mechanism to screen the minerals. After screening, a part of the minerals will be retained on the first sieve plate 1202, a part will be retained on the second sieve plate 1302, and the other part will fall into the first box 33 below; An installation box 8 is fixedly installed on the rear wall of the middle end of the horizontal connecting plate 11. The reciprocating mechanism is installed in the installation box 8; Both trapezoidal side plates 2 are driven to move by a vibrating mechanism; A same conveyor belt 9 is movably installed between the two trapezoidal side plates 2. The conveyor belt 9 is driven to move by a transmission mechanism. The two trapezoidal side plates 2 can carry the conveyor belt 9 to jolt up and down under the drive of the vibrating mechanism. The ores on the conveyor belt 9 will be flattened after being jolted; On the outer walls of the two trapezoidal side plates 2, horizontal mounting plates 201 are fixedly installed respectively, and the two horizontal mounting plates 201 are movably installed above the vertical plates of the U-shaped bottom plate 1 close to them; At the upper end of the horizontal mounting plate 201 on the right side, a driving motor is installed. The driving motor is fixedly installed at the upper end of the horizontal mounting plate 201 close to it through a frame. The output end of the driving motor drives the transmission mechanism and the vibration mechanism to work through rotation respectively. After the driving motor is started, its output shaft will start to drive the pulley close to it to rotate. The pulley can drive the conveyor belt 9 to move through rotation, so as to transfer the ore from a low place to a high place; The reciprocating mechanism is driven by the transmission mechanism to work; A blowing mechanism is installed between the two trapezoidal side plates 2, and the blowing mechanism is installed inside the conveyor belt 9; The blowing mechanism is driven by the transmission mechanism to work. When the ore is transferred from a low place to a high place, the ore will start to fall freely under the action of gravity, and during the falling process, the blowing mechanism can blow the lightest ore material into the following second box body 32; A second box body 32 is installed behind the first box body 33, and the second box body 32 is detachably installed at the upper end of the cross plate of the U-shaped bottom plate 1; At the upper end of the rear wall of the second box body 32, a baffle 3201 is fixedly installed, and the baffle 3201 is used to block the ore material blown by the blowing mechanism to prevent it from being blown outside the box.

[0020] The reciprocating mechanism includes a first bevel gear 15, a second bevel gear 16, a first movable plate 12, a second movable plate 13, a first connecting rod 20, a second connecting rod 19, a second fixed shaft 21, a third connecting rod 17, a fourth connecting rod 18, and a first vertical mounting plate 14; On the front wall of the horizontal connecting plate 11, a first vertical mounting plate 14 is fixedly installed. The first ends of the first rotating shafts are rotatably installed on the rear wall of the first vertical mounting plate 14 and the front wall of the mounting box body 8 respectively, and the second ends of the two first rotating shafts are fixedly installed with the first ends of the third connecting rods 17 respectively; The second ends of the two third connecting rods 17 are fixedly installed with the first ends of a first fixed shaft respectively, and the first ends of the fourth connecting rods 18 are fixedly installed on the outer walls of the second ends of the two first fixed shafts respectively; The same second fixed shaft 21 is fixedly installed between the second ends of the two fourth connecting rods 18; The first ends of the second connecting rods 19 are rotatably installed on the outer walls of the two first fixed shafts; The first end of the first connecting rod 20 is rotatably installed on the outer wall of the middle end of the second fixed shaft 21; Two first rectangular through slots 1101 are respectively provided on the horizontal connecting plate 11, and first rectangular sliders are respectively and slidably installed in the two first rectangular through slots 1101. The upper ends of the two first rectangular sliders are respectively and fixedly installed with a first movable plate 12 and a second movable plate 13; First connecting frames 1301 are respectively installed on the outer walls of the second movable plate 13, and the second ends of the two second connecting rods 19 are respectively and rotatably installed on the outer walls of the second connecting frames 1301 close to them; A second connecting frame 1201 is fixedly installed in the middle of the left side wall of the first movable plate 12, and the second end of the first connecting rod 20 is rotatably installed in the second connecting frame 1201; The first sieve plate 1202 and the second sieve plate 1302 are respectively installed at the lower ends of the two first rectangular sliders through connecting rods; The first sieve plate 1202 is movably installed above the second sieve plate 1302; The first rotating shaft close to the installation box 8 rotatably penetrates the front wall of the installation box 8 close to it and is fixedly installed with a second bevel gear 16. A first bevel gear 15 is meshingly installed on the right side of the second bevel gear 16. The first bevel gear 15 is rotatably installed in the right side wall of the installation box 8 through a second rotating shaft; The second rotating shaft is driven to rotate by a transmission mechanism. The second rotating shaft starts to rotate under the drive of the transmission mechanism, and drives the first bevel gear 15 coaxially installed with it to start rotating during the rotation process. The first bevel gear 15 drives the second bevel gear 16 meshingly installed with it to start rotating through rotation. The second bevel gear 16 drives the third connecting rod 17 close to it to start rotating through rotation. The third connecting rod 17 drives the fourth connecting rod 18 fixed to it to start rotating through rotation. Refer to Figure 6 , during the rotation process of the two third connecting rods 17, they will respectively drive the second connecting rods 19 close to them to deflect left and right. During the rotation process of the two fourth connecting rods 18, they will drive the first connecting rod 20 installed between them to start deflecting left and right. When the two third connecting rods 17 deflect to the left, the first connecting rod 20 starts to deflect to the right. When the two third connecting rods 17 deflect to the right, the first connecting rod 20 starts to deflect to the left. The achieved effect is that the first movable plate 12 and the second movable plate 13 always make left and right slides in opposite directions. During the left and right sliding process of the first movable plate 12 and the second movable plate 13, they will respectively drive the first sieve plate 1202 and the second sieve plate 1302 fixedly installed with them to start moving left and right. During the left and right moving process of the first sieve plate 1202 and the second sieve plate 1302, they will respectively receive the fallen ore and screen it. Refer to Figure 14, a blocking disk is installed at the left end of the second sieve plate 1302, which can prevent larger ores that have not been screened from falling into the lower first box body 33 during the screening process. Through screening, the larger ores will be separated at the upper ends of the first sieve plate 1202 and the second sieve plate 1302 respectively, and the smaller ores will fall into the lower first box body 33 through the two sieve plates.

[0021] The transmission mechanism includes a first sprocket 7, a second sprocket 6, a third sprocket 5, a fourth sprocket 4, and a second vertically installed plate 202; The upper end of the rear wall of the trapezoidal side plate 2 on the right side is fixedly installed with a second vertically installed plate 202, and the second rotating shaft is rotatably penetrated between the right wall of the installation box body 8 and the second vertically installed plate 202; The right end of the second rotating shaft is fixedly installed with a first sprocket 7, and the first sprocket 7 is rotatably installed on the right wall of the second vertically installed plate 202; The second sprocket 6, the third sprocket 5, and the fourth sprocket 4 are respectively rotatably installed on the outer side of the right wall of the trapezoidal side plate 2 on the right side; The outer walls of the first sprocket 7, the second sprocket 6, the third sprocket 5, and the fourth sprocket 4 are sleeved and meshed with the same first chain; Both the fourth sprocket 4 and the second sprocket 6 are rotatably installed on the outer wall of the trapezoidal side plate 2 close to them through belt pulleys. Both belt pulleys are movably installed between the two trapezoidal side plates 2. The outer wall of the belt pulley close to the fourth sprocket 4 is fixedly connected to the output shaft of the driving motor through a fixed shaft, and the fixed shaft is rotatably penetrated between the trapezoidal side plate 2 on the right side; Both belt pulleys are respectively rotatably installed between the two trapezoidal side plates 2; A first support rotating shaft is movably installed above the belt pulley close to the second sprocket 6, and a second support rotating shaft is installed on the front side of the first support rotating shaft; The conveyor belt 9 is respectively meshed and installed on the outer sides of the two belt pulleys; The first support rotating shaft and the second support rotating shaft are respectively arranged to roll on the inner side of the conveyor belt 9; The first support rotating shaft and the second support rotating shaft are installed on the same horizontal plane; The third sprocket 5 is rotatably installed on the outer wall of the trapezoidal side plate 2 close to it through a fifth rotating shaft; The fifth rotating shaft drives the blowing mechanism to work through rotation; The pulley near the fourth sprocket 4 drives the vibration mechanism to work by rotation. Start the drive motor, the output shaft of the drive motor starts to rotate and drives the fourth sprocket 4 to start rotating. During the rotation of the fourth sprocket 4, the first sprocket 7, the second sprocket 6, and the third sprocket 5 are respectively driven to start rotating through the first chain. The first sprocket 7 can drive the second rotating shaft fixedly installed coaxially with it to start rotating by rotation; the fourth sprocket 4 and the second sprocket 6 can drive the pulleys close to them to start rotating by rotation, and the two pulleys can drive the conveyor belt 9 to start rotating and working by rotation. The first support rotating shaft and the second support rotating shaft hold the conveyor belt 9 open into a trapezoid, making the conveyor belt 9 have a height difference between the upper and lower parts, which is convenient for the staff to convey the ore from the lower place to the higher place, and the third sprocket 5 can drive the fifth rotating shaft fixedly installed coaxially with it to start rotating by rotation.

[0022] The air blowing mechanism includes a third bevel gear 26, a fourth bevel gear 27, a fifth sprocket 28, a sixth sprocket 29, a fan blade 31, and a third vertically installed plate 30; The same third vertically installed plate 30 is fixedly installed between the two trapezoidal side plates 2, and the third vertically installed plate 30 is installed inside the conveyor belt 9; The middle part of the front wall of the third vertically installed plate 30 is rotatably installed with a fifth sprocket 28 through a third rotating shaft; On both sides of the fifth sprocket 28, sixth sprockets 29 are respectively installed, and the two sixth sprockets 29 are both rotatably installed on the front wall of the third vertically installed plate 30 through fourth rotating shafts; The diameters of the two sixth sprockets 29 are both smaller than the diameter of the fifth sprocket 28; The third rotating shaft and the two fourth rotating shafts respectively rotate through the third vertically installed plate 30 and are fixedly installed with fan blades 31; A number of ventilation holes 901 are installed on the conveyor belt 9; The front end of the third rotating shaft is fixedly installed with a fourth bevel gear 27, and the fourth bevel gear 27 is installed on the front side of the fifth sprocket 28; The third bevel gear 26 is meshed and installed on the right side of the fourth bevel gear 27, and the fifth rotating shaft rotates through the trapezoidal side plate 2 close to it and is fixedly connected with the third bevel gear 26. Refer to Figure 10, during the rotation of the fifth rotating shaft, the third bevel gear 26 fixedly installed coaxially therewith will start to rotate. The third bevel gear 26 can drive the fourth bevel gear 27 meshed therewith to start rotating through rotation. The fourth bevel gear 27 can drive the fifth sprocket 28 fixedly installed coaxially therewith to start rotating through rotation. During the rotation of the fifth sprocket 28, the two side sixth sprockets 29 are respectively driven to rotate through the second chain. During the rotation of the two sixth sprockets 29 and the fifth sprocket 28, the fan blades 31 coaxially therewith are respectively driven to rotate. During the rotation of the three fan blades 31, two functions will be achieved. The first function is to convey the air flow behind the three fan blades 31 backward. Since there are ventilation holes 901 on the conveyor belt 9, the air flow of the ventilation holes 901 behind the three fan blades 31 is conveyed from the outside to the inside, so that the ore materials on the conveyor belt 9 can be fixed to a certain extent by suction. The second function is to blow the ore that has fallen from a high place, and blow the ore materials with lighter mass in the fallen ore into the second box body 32 placed at the end.

[0023] The vibration mechanism includes a disc 23, a fifth connecting rod 22, a second rectangular slider 10, a horizontal movable rod 1001, a spur gear 24, a rack plate 25, and a cam 3; The front lower parts of the two trapezoidal side plates 2 are respectively rotatably arranged between the inner walls of the front ends of the vertical plates of the U-shaped bottom plate 1 close to them; A slide rail 101 is fixedly installed on the outer wall of the vertical plate of the U-shaped bottom plate 1 on the left side. A second rectangular slider 10 is slidably installed in the slide rail 101. A first connecting shaft is fixedly installed on the outer wall of the second rectangular slider 10. The first end of the fifth connecting rod 22 is rotatably installed on the outer wall of the first connecting shaft; The other end of the pulley close to the fourth sprocket 4 rotatably penetrates through the trapezoidal side plate 2 close to it and is fixedly installed with a disc 23. The disc 23 is movably installed above the horizontally installed plate 201 close to it; A second connecting shaft is fixedly installed at an eccentric position on the outer wall of the disc 23; The second end of the fifth connecting rod 22 is rotatably installed on the outer wall of the second connecting shaft; A second rectangular through groove 1011 is provided on the inner wall of the slide rail 101; A horizontal movable rod 1001 is fixedly installed on the inner wall of the second rectangular slider 10. The horizontal movable rod 1001 is slidably penetrated through the second rectangular through groove 1011; A rack plate 25 is fixedly installed at the right end of the horizontal movable rod 1001. The rack plate 25 is slidably installed on the inner side wall of the vertical plate of the U-shaped bottom plate 1 on the right side; A spur gear 24 is meshed and installed at the upper end of the rack plate 25. The spur gear 24 is rotatably installed on the inner wall of the vertical plate of the U-shaped bottom plate 1 close to it through a sixth rotating shaft; The other end of the sixth rotating shaft rotatably penetrates through the vertical plate of the U-shaped bottom plate 1 close to it and is fixedly installed with a cam 3. The cam 3 is rotatably installed at the lower end of the horizontally installed plate 201 close to it. The pulley close to the fourth sprocket 4 drives the disk 23 fixedly installed coaxially with it to start rotating through rotation. The disk 23 drives the fifth connecting rod 22 to start deflecting back and forth through rotation. Refer to Figure 15 , during the process of the fifth sprocket 22 deflecting back and forth, it drives the second rectangular slider 10 to slide back and forth along the slide rail 101. The horizontal movable rod 1001 fixedly installed on the inner wall of the second rectangular slider 10 also starts to slide back and forth. During the process of the horizontal movable rod 1001 sliding back and forth, it drives the rack plate 25 fixedly installed with it to start sliding back and forth reciprocally. During the process of the rack plate 25 sliding back and forth reciprocally, it drives the spur gear 24 meshed with it to start rotating reciprocally. The spur gear 24 drives the cam 3 fixedly installed coaxially with it to start rotating reciprocally through reciprocating rotation. The cam 3 drives the horizontally installed plate 201 close to it to move up and down through reciprocating rotation. Since the two trapezoidal side plates 2 and the U-shaped bottom plate 1 are rotatably connected, therefore, with the reciprocating rotation of the cam 3, the two trapezoidal side plates 2 drive the conveyor belt 9 installed between them to start rotating up and down around the rotation center of the two trapezoidal side plates 2. It should be noted that when the device is in the initial state, the upper ends of the two vertical plates of the two trapezoidal side plates 2 and the U-shaped bottom plate 1 are in a flush state, as Figure 9 shown in the state. When the cam 3 rotates reciprocally, it only drives the two trapezoidal side plates 2 to reciprocally lift upward around their respective rotation centers to achieve oscillation.

[0024] Both the first sieve plate 1202 and the second sieve plate 1302 are U-shaped sieve plates. U-shaped through grooves matching the U-shaped sieve plates are provided on the side walls of the two trapezoidal side plates 2. The two U-shaped sieve plates are respectively slidably penetrated through the U-shaped through grooves close to them. Refer to Figure 14 , when the two U-shaped sieve plates slide back and forth left and right, since the sieve plates will overlap, in order to prevent the two U-shaped sieve plates from causing no platforms for receiving the fallen ore on both sides after overlapping, it is necessary to extend the two U-shaped sieve plates. The sliding trajectories of the two U-shaped sieve plates are limited by the U-shaped grooves matching them and will not fall off. It should be noted that when the U-shaped sieve plate close to the first chain slides out of the trapezoidal side plate 2 close to it, it will not interfere with the first chain on the outside.

[0025] Implementation method of the present invention: Place the device at the designated position, start the drive motor, the output shaft of the drive motor starts to rotate, and drives the conveyor belt 9 to start driving from bottom to top. The staff shovels the collected ore at the lower part of the conveyor belt 9, and the ore is transported from bottom to top under the drive of the conveyor belt 9; Since the driving motor is in operation, the two trapezoidal side plates 2 will drive the conveyor belt 9 to vibrate up and down. During the upward transportation process, the ore on the conveyor belt 9 will gradually flatten out due to the up and down jolts. At this time, the three fan blades 31 inside the conveyor belt 9 will also start to rotate and work. Due to the inward suction of the ventilation holes on the conveyor belt 9 behind the three fan blades 31, the flattened ore material will have a certain fixing ability with the surface of the conveyor belt 9 under the action of the suction force; With the continuous transportation of the conveyor belt 9, the ore will be gradually transported to the high position of the conveyor belt 9 and start to fall off. Since the ore was flattened before, the weight will not be overly concentrated at one point, reducing the impact force on the top of the first sieve plate 1202 and protecting the sieve plate; At this time, the lighter ore materials will be blown by the work of the three fan blades 31 above the second box body 32 at the rear and fall into the second box body 32 through the baffle 3201; The remaining ore with larger mass that cannot be blown will respectively pass through the first sieve plate 1202 and the second sieve plate 1302 and fall into the first box body 33 below; The first sieve plate 1202 and the second sieve plate 1302 isolate the ore under the drive of the reciprocating mechanism. Eventually, the largest-volume ore will be on the first sieve plate 1202 and the second sieve plate 1302, the ore with the second-largest volume will be in the first box body 33, and the ore with the smallest volume will be blown into the second box body 32, realizing three-stage screening.

[0026] The vibration mechanism of the present invention can make the ore on the conveyor belt bump and flatten, avoiding falling on one point of the sieve plate during the subsequent falling process and causing damage to the sieve plate. The blowing mechanism of the present invention can blow the ore materials with small mass into the second box body at the front side. The ore materials with larger mass will be transported above the two sieve plates by the conveyor belt. The two sieve plates can further screen the ore materials with larger mass under the drive of the reciprocating mechanism and isolate the screened ore materials in the two sieve plates and the first box body below, realizing the function of multi-stage screening.

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A screening device for prospecting minerals, characterized in that: It includes a U-shaped bottom plate (1), trapezoidal side plates (2), a horizontal connecting plate (11), a horizontal mounting plate (201), a conveyor belt (9), a mounting box body (8), a first box body (33), a second box body (32), a first sieve plate (1202), a second sieve plate (1302), a driving motor, a transmission mechanism, a reciprocating mechanism, a blowing mechanism, and a vibrating mechanism; Trapezoidal side plates (2) are respectively movably arranged on the inner walls of the two vertical plates of the U-shaped bottom plate (1), and the same horizontal connecting plate (11) is fixedly arranged between the upper cross plates of the two trapezoidal side plates (2); A first box body (33) is arranged below the horizontal connecting plate (11), the first box body (33) is detachably arranged above the cross plate of the U-shaped bottom plate (1), and a first sieve plate (1202) and a second sieve plate (1302) are respectively movably arranged between the first box body (33) and the horizontal connecting plate (11); Both the first sieve plate (1202) and the second sieve plate (1302) are driven to move by a reciprocating mechanism; On the rear wall of the middle end of the horizontal connecting plate (11), a mounting box body (8) is fixedly arranged, and the reciprocating mechanism is arranged in the mounting box body (8); Both of the two trapezoidal side plates (2) are driven to move by a vibrating mechanism; The same conveyor belt (9) is movably arranged between the two trapezoidal side plates (2), and the conveyor belt (9) is driven to move by a transmission mechanism; Horizontal mounting plates (201) are respectively fixedly arranged on the outer walls of the two trapezoidal side plates (2), and the two horizontal mounting plates (201) are respectively movably arranged above the vertical plates of the U-shaped bottom plate (1) close to them; A driving motor is arranged at the upper end of the horizontal mounting plate (201) on the right side. The driving motor is fixedly arranged at the upper end of the horizontal mounting plate (201) close to it through a frame, and the output end of the driving motor respectively drives the transmission mechanism and the vibrating mechanism to work through rotation; The reciprocating mechanism is driven to work by the transmission mechanism; A blowing mechanism is arranged between the two trapezoidal side plates (2), and the blowing mechanism is arranged inside the conveyor belt (9); The blowing mechanism is driven to work by the transmission mechanism; A second box body (32) is arranged behind the first box body (33), and the second box body (32) is detachably arranged at the upper end of the cross plate of the U-shaped bottom plate (1); A baffle (3201) is fixedly arranged at the upper end of the rear wall of the second box body (32).

2. The screening device for mineral exploration according to claim 1, characterized in that: The reciprocating mechanism includes a first bevel gear (15), a second bevel gear (16), a first movable plate (12), a second movable plate (13), a first connecting rod (20), a second connecting rod (19), a second fixed shaft (21), a third connecting rod (17), a fourth connecting rod (18), and a first vertical mounting plate (14); A first vertical mounting plate (14) is fixedly arranged on the front wall of the horizontal connecting plate (11). The first ends of the first shafts are respectively rotatably arranged on the rear wall of the first vertical mounting plate (14) and the front wall of the mounting box body (8), and the second ends of the two first shafts are respectively fixedly provided with the first ends of the third connecting rod (17); The second ends of the two third link rods (17) are respectively fixedly provided with the first ends of the first fixed shafts, and the first ends of the fourth link rods (18) are respectively fixedly provided on the outer walls of the second ends of the two first fixed shafts; The same second fixed shaft (21) is fixedly provided between the second ends of the two fourth link rods (18); The first ends of the second link rods (19) are rotatably sleeved on the outer walls of the two first fixed shafts; The first end of the first link rod (20) is rotatably sleeved on the outer wall of the middle end of the second fixed shaft (21); Two first rectangular through grooves (1101) are respectively provided on the horizontal connecting plate (11), and first rectangular sliders are respectively slidably provided in the two first rectangular through grooves (1101). The upper ends of the two first rectangular sliders are respectively fixedly provided with a first movable plate (12) and a second movable plate (13); The outer walls of the second movable plate (13) are respectively provided with first connecting frames (1301), and the second ends of the two second link rods (19) are respectively rotatably sleeved on the outer walls of the second connecting frames (1301) close to them; The middle part of the left side wall of the first movable plate (12) is fixedly provided with a second connecting frame (1201), and the second end of the first link rod (20) is rotatably arranged in the second connecting frame (1201); The first sieve plate (1202) and the second sieve plate (1302) are respectively arranged at the lower ends of the two first rectangular sliders through connecting rods; The first sieve plate (1202) is movably arranged above the second sieve plate (1302); The first rotating shaft close to the installation box (8) rotatably penetrates the front wall of the installation box (8) close to it and is fixedly provided with a second bevel gear (16). The right side of the second bevel gear (16) is meshed with a first bevel gear (15), and the first bevel gear (15) is rotatably arranged in the right side wall of the installation box (8) through a second rotating shaft; The second rotating shaft is driven to rotate by the transmission mechanism.

3. The screening device for prospecting minerals according to claim 2, characterized in that: The transmission mechanism includes a first sprocket (7), a second sprocket (6), a third sprocket (5), a fourth sprocket (4), and a second vertical mounting plate (202); The second vertical mounting plate (202) is fixedly provided at the upper end of the rear wall of the trapezoidal side plate (2) on the right side. The second rotating shaft is rotatably penetrated and arranged between the right wall of the installation box body (8) and the second vertical mounting plate (202); The right end of the second rotating shaft is fixedly provided with a first sprocket (7), and the first sprocket (7) is rotatably arranged on the right wall of the second vertical mounting plate (202); The second sprocket (6), the third sprocket (5), and the fourth sprocket (4) are respectively rotatably arranged on the outer side of the right wall of the trapezoidal side plate (2) on the right side; The outer walls of the first sprocket (7), the second sprocket (6), the third sprocket (5), and the fourth sprocket (4) are sleeved and meshed with the same first chain; The fourth sprocket (4) and the second sprocket (6) are both rotatably arranged on the outer wall of the trapezoidal side plate (2) close to them through belt pulleys. Both belt pulleys are movably arranged between the two trapezoidal side plates (2). The outer wall of the belt pulley close to the fourth sprocket (4) is fixedly connected to the output shaft of the driving motor through a fixed shaft. The fixed shaft is rotatably penetrated between the fixed shaft and the trapezoidal side plate (2) on the right side. The two belt pulleys are respectively rotatably arranged between the two trapezoidal side plates (2). Above the belt pulley close to the second sprocket (6), a first support rotating shaft is movably arranged, and a second support rotating shaft is arranged on the front side of the first support rotating shaft. The conveyor belt (9) is respectively meshed and sleeved on the outer sides of the two belt pulleys. The first support rotating shaft and the second support rotating shaft are respectively arranged to roll inside the conveyor belt (9). The first support rotating shaft and the second support rotating shaft are arranged on the same horizontal plane. The third sprocket (5) is rotatably arranged on the outer wall of the trapezoidal side plate (2) close to it through a fifth rotating shaft. The fifth rotating shaft drives the blowing mechanism to work through rotation. The belt pulley close to the fourth sprocket (4) drives the vibration mechanism to work through rotation.

4. The screening device for prospecting minerals according to claim 3, characterized in that: The blowing mechanism includes a third bevel gear (26), a fourth bevel gear (27), a fifth sprocket (28), a sixth sprocket (29), a fan blade (31), and a third vertical mounting plate (30). The same third vertical mounting plate (30) is fixedly arranged between the two trapezoidal side plates (2). The third vertical mounting plate (30) is arranged inside the conveyor belt (9). The middle of the front wall of the third vertical mounting plate (30) is rotatably provided with a fifth sprocket (28) through a third rotating shaft. On both sides of the fifth sprocket (28), sixth sprockets (29) are respectively arranged. Both sixth sprockets (29) are rotatably arranged on the front wall of the third vertical mounting plate (30) through fourth rotating shafts. The diameters of both sixth sprockets (29) are smaller than the diameter of the fifth sprocket (28). The third rotating shaft and the two fourth rotating shafts are respectively rotatably penetrated through the third vertical mounting plate (30) and fixedly provided with fan blades (31). A plurality of ventilation holes (901) are provided on the conveyor belt (9). The front end of the third rotating shaft is fixedly provided with a fourth bevel gear (27). The fourth bevel gear (27) is arranged in front of the fifth sprocket (28). The third bevel gear (26) is meshed on the right side of the fourth bevel gear (27). The fifth rotating shaft is rotatably penetrated through the trapezoidal side plate (2) close to it and fixedly connected to the third bevel gear (26).

5. The screening device for prospecting minerals according to claim 3, characterized in that: The vibration mechanism includes a disc (23), a fifth connecting rod (22), a second rectangular slider (10), a horizontal movable rod (1001), a spur gear (24), a rack plate (25), and a cam (3). The front lower parts of the two trapezoidal side plates (2) are respectively rotatably arranged between the inner walls of the vertical plates at the front ends of the U-shaped bottom plate (1) close to them. On the outer wall of the vertical plate of the U-shaped bottom plate (1) located on the left side, a slide rail (101) is fixedly provided. A second rectangular slider (10) is slidably arranged in the slide rail (101). A first connecting shaft is fixedly provided on the outer wall of the second rectangular slider (10). The first end of a fifth connecting rod (22) is rotatably sleeved on the outer wall of the first connecting shaft; The other end of the pulley near the fourth sprocket (4) rotatably penetrates through the trapezoidal side plate (2) close to it and is fixedly provided with a disc (23). The disc (23) is movably arranged above the horizontal mounting plate (201) close to it; A second connecting shaft is fixedly provided at an eccentric position on the outer wall of the disc (23); The second end of the fifth connecting rod (22) is rotatably sleeved on the outer wall of the second connecting shaft; A second rectangular through groove (1011) is provided on the inner wall of the slide rail (101); A horizontal movable rod (1001) is fixedly provided on the inner wall of the second rectangular slider (10). The horizontal movable rod (1001) and the second rectangular through groove (1011) are slidably penetrated through; A rack plate (25) is fixedly provided at the right end of the horizontal movable rod (1001). The rack plate (25) is slidably arranged on the inner side wall of the vertical plate of the U-shaped bottom plate (1) located on the right side; A spur gear (24) is meshed with the upper end of the rack plate (25). The spur gear (24) is rotatably arranged on the inner wall of the vertical plate of the U-shaped bottom plate (1) close to it through a sixth rotating shaft; The other end of the sixth rotating shaft rotatably penetrates through the vertical plate of the U-shaped bottom plate (1) close to it and is fixedly provided with a cam (3). The cam (3) is rollingly arranged at the lower end of the horizontal mounting plate (201) close to it.

6. The screening device for prospecting minerals according to claim 1, characterized in that: Both the first sieve plate (1202) and the second sieve plate (1302) are U-shaped sieve plates. U-shaped through grooves matching with the U-shaped sieve plates are provided on the side walls of the two trapezoidal side plates (2). The two U-shaped sieve plates are respectively slidably penetrated through the U-shaped through grooves close to them.

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