Rotary vibrating screen

Abstract

The invention relates to the technical field of vibrating screens, in particular to a rotary vibrating screen which comprises a screen frame, a dustproof cover and a dustproof assembly, a first discharging pipe is arranged on the screen frame, a second discharging pipe is arranged at the lower end of the screen frame, vibrating motors are arranged at the left end and the right end of the screen frame, a screen plate is arranged in the screen frame, and a plurality of first springs are arranged at the lower end of the screen frame. A plurality of supporting legs are arranged at the lower end of the connecting annular plate, and a base is arranged at the lower ends of the supporting legs. During use, materials are put into the screen frame through the feeding port, the materials drive a baffle to rotate, the baffle drives a push plate to move upwards, the push plate compresses a third spring, after the materials are put, the push plate is driven to move downwards under the action of the elastic force of the third spring, the push plate pushes the baffle to return to the original position, and the baffle seals the feeding port; and dust is prevented from flying out of the feeding port during screening.

Description

Technical Field

[0001] The invention relates to the technical field of vibrating screens, in particular to a rotary vibrating screen. Background Art

[0002] The vibrating screen works by using the reciprocating vibration generated by the vibrator excitation. The upper rotating hammer of the vibrator makes the screen surface produce a plane gyration vibration, while the lower rotating hammer makes the screen surface produce a conical gyration vibration. The combined effect makes the screen surface produce a complex gyration vibration. Its vibration trajectory is a complex space curve. The curve is projected as a circle on the horizontal plane and an ellipse on the vertical plane. The amplitude can be changed by adjusting the exciting force of the upper and lower rotating hammers. And adjusting the spatial phase angle of the upper and lower hammers can change the curve shape of the screen surface motion trajectory and change the motion trajectory of the material on the screen surface. The vibrating screen can be used for quarrying stone, and can also be used for product classification in coal preparation, mineral processing, building materials, electricity and chemical industries. It has the characteristics of advanced structure, strong exciting force, strong vibration force, low vibration noise, easy maintenance, and strong durability. The vibrating screen can be divided into light vibrating screen and heavy vibrating screen. Generally, light vibrating screen is used for screening food, medicine, etc.; heavy vibrating screen is generally used for screening ore and crusher.

[0003] In the working process of the vibrating screen in the prior art, generally, for the convenience of use, a large amount of dust is easily generated during screening. Even if the vibrating screen is sealed, a large amount of dust will still be generated after the screen cover is opened to pollute the air. At the same time, the discharge pipe will also generate dust when discharging materials, resulting in the pollution of the working environment. Therefore, the present invention provides a rotary vibrating screen to solve the above-mentioned problems. Summary of the invention

[0004] The object of the present invention is to provide a rotary vibrating screen to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A rotary vibrating screen comprises a screen frame, a dust cover and a dustproof assembly, wherein the screen frame is provided with a first discharge pipe, the lower end of the screen frame is provided with a second discharge pipe, the left and right ends of the screen frame are provided with vibration motors, and a screen plate is provided in the screen frame, a plurality of first springs are provided at the lower end of the screen frame, a connecting ring plate is provided at the lower end of the first spring, a plurality of supporting legs are provided at the lower end of the connecting ring plate, a base is provided at the lower end of the supporting legs, a dust cover is attached to the upper end of the screen frame, a feed port is provided at the upper end of the dust cover, a blocking assembly is provided in the feed port, and a dustproof assembly is provided on the dust cover, a bracket is provided at the upper end of the base, a lifting assembly is provided on the bracket corresponding to the dust cover, and a material shifting assembly is provided at the lower end of the bracket corresponding to the screen plate.

[0006] As a further solution of the present invention, a positioning ring is provided at the lower end of the dust cover, the positioning ring is snap-connected with the screen frame, and a positioning groove is provided at the upper end of the screen frame corresponding to the positioning ring.

[0007] Specifically, the positioning ring and the positioning groove structure are used in coordination to facilitate the positioning and fitting of the dust cover and the screen frame.

[0008] As a further scheme of the present invention, the dust-proof assembly includes a dust box, a dust cleaner, an air intake pipe, a first dust cover and a second dust cover. The first discharge pipe is provided with a first dust cover, the second discharge pipe is slidably connected to the second dust cover, and the lower end of the second dust cover is attached to a collecting tube. The upper end of the dust cover is provided with a dust box, a dust cleaner is provided at the right end of the dust box, the left end of the dust box is connected to the air intake pipe, the other end of the air intake pipe passes through the dust cover, and the other end of the air intake pipe is connected to a third annular pipe, the upper end of the third annular pipe is fixedly connected to the dust cover, and the lower end of the third annular pipe is provided with a plurality of third dust suction ports.

[0009] Specifically, the dust generated during screening in the screen frame can be extracted through the provided air inlet pipe, the third annular pipe and the third dust suction port.

[0010] As a further solution of the present invention, a first annular tube is provided at the top of the first dust cover, a plurality of first dust suction ports are provided at the lower end of the first annular tube, the upper end of the first annular tube is connected to the first branch pipe, and the first branch pipe passes through the first dust cover and is connected to the air intake pipe.

[0011] Specifically, the first dust cover can be set to block the dust generated when the first discharge pipe discharges materials. The material falls downward under the action of gravity, while the dust floats upward. The first dust cover can block the dust within a certain range, and cooperate with the first branch pipe, the first annular pipe and the first dust suction port structure to extract the blocked dust, thereby avoiding the generation of dust flying when the first discharge pipe discharges materials.

[0012] As a further solution of the present invention, a blocking net is provided inside the second dust cover, and a second annular tube is provided on the outer wall of the second dust cover, a plurality of second dust suction ports penetrating the second dust cover are provided on the inner wall of the second annular tube, and the left end of the second annular tube is connected to the telescopic tube, and the other end of the telescopic tube is connected to the second branch pipe, and the second branch pipe is connected to the air intake pipe.

[0013] Specifically, the second dust cover can block the dust generated when the second discharge pipe discharges the material, the blocking net can block the material, and the blocked dust can be extracted by cooperating with the second annular pipe, the second dust suction port, the telescopic pipe and the second branch pipe structure.

[0014] As a further solution of the present invention, a slider is symmetrically provided on the second dust cover, the slider is slidably connected to the outer wall of the second discharge pipe, and a slide groove is provided on the outer wall of the second discharge pipe corresponding to the slider, a slide rod penetrating the slider is provided in the slide groove, a second spring is sleeved on the slide rod, the upper end of the second spring is fixedly connected to the slider, and the lower end of the second spring is fixedly connected to the bottom end of the slide groove.

[0015] Specifically, by using the provided sliding block, the sliding rod and the second spring structure in coordination, it is convenient to adjust the height of the second dust cover according to the collecting tubes of different heights.

[0016] As a further scheme of the present invention, the blocking assembly includes a baffle, a support plate, a push plate, a vertical rod, a fixed block, a limit block and a third spring. The baffle is movably connected to the feed port, the lower end of the baffle is fitted with a support plate, the right end of the support plate is fixedly connected to the inner wall of the feed port, the upper end of the baffle is fitted with a push plate, the upper end of the push plate is provided with a vertical rod, the upper end of the vertical rod is provided with a limit block, the inner wall of the feed port is provided with a fixed block, the vertical rod passes through the fixed block, the vertical rod is slidably connected to the fixed block, and the third spring is sleeved on the vertical rod, the upper end of the third spring is fixedly connected to the fixed block, and the lower end of the third spring is fixedly connected to the push plate.

[0017] Specifically, the material is put into the screen frame through the feed port, the material drives the baffle to rotate, the baffle drives the push plate to move upward, the push plate compresses the third spring, and when the material is put in, the push plate is driven downward by the elastic force of the third spring, and the push plate pushes the baffle back to its original position, thereby closing the feed port to prevent dust from flying out of the feed port during screening.

[0018] As a further scheme of the present invention, the lifting assembly includes a threaded rod, a threaded sleeve, a first bearing, a first gear, a second gear and a first motor. The upper end of the dust cover is symmetrically provided with a threaded rod, the threaded sleeve is threadedly connected to the threaded rod, the upper end of the threaded sleeve passes through the bracket, and a first bearing is provided at the connection between the threaded sleeve and the bracket. The upper end of the threaded sleeve is provided with a first gear, and the second gear is meshed between the two first gears. The lower end of the second gear is provided with a rotating shaft, the lower end of the rotating shaft is provided with a first motor, and the lower end of the first motor is fixedly connected to the bracket.

[0019] Specifically, start the first motor to drive the rotating shaft and the second gear to rotate, the second gear drives the first gear and the threaded sleeve to rotate, the threaded sleeve drives the threaded rod and the dust cover to move downward, and the dust cover closes the top of the screen frame to prevent dust from flying when screening materials and affecting the working environment.

[0020] As a further solution of the present invention, the material shifting assembly includes a second motor, a rotating rod, a second bearing, a connecting frame and a material shifting brush. The second motor is provided at the lower end of the bracket, the second motor is provided at the lower end of the rotating rod which passes through the dust cover, the lower end of the rotating rod is provided with a material shifting brush, the material shifting brush is in contact with the screen plate, the rotating rod is provided with a second bearing, and the second bearing is symmetrically provided with a connecting frame fixedly connected to the bracket.

[0021] Specifically, the second motor is started to drive the rotating rod and the material brush to rotate, so that the material brush brushes the screen plate to prevent the screen plate from being blocked by materials, and at the same time, it can prevent the material from agglomerating and causing low screening efficiency.

[0022] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is used, the material is put into the screen frame through the feed port, the material drives the baffle to rotate, the baffle drives the push plate to move upward, the push plate compresses the third spring, and when the material is put in, the push plate is driven downward by the elastic force of the third spring, and the push plate pushes the baffle back to its original position, thereby closing the feed port to prevent dust from flying out of the feed port during screening.

[0023] 2. When the present invention is used, the vibration motor is started to drive the screen frame and the screen plate to vibrate, and the screen plate thereby screens the material. At the same time, the first motor is started to drive the rotating shaft and the second gear to rotate, and the second gear drives the first gear and the threaded sleeve to rotate. The threaded sleeve drives the threaded rod and the dust cover to move downward, and the dust cover closes the top of the screen frame to prevent dust from flying when screening materials and affecting the working environment.

[0024] 3. When the present invention is in use, the vacuum cleaner is started to exhaust air, and the dust generated during screening in the sieve frame can be extracted through the arranged air inlet pipe, the third annular pipe and the third dust suction port, and the dust generated when the first discharging pipe is discharged can be blocked by the arranged first dust cover, and the material falls downward under the action of gravity, while the dust will float upward, and the first dust cover can block the dust within a certain range, and cooperate with the arranged first branch pipe, the first annular pipe and the first dust suction port structure to extract the blocked dust, so as to avoid the flying of dust when the first discharging pipe is discharged, and the dust generated when the second discharging pipe is discharged can be blocked by the arranged second dust cover, and the material can be blocked by the arranged blocking net, and at the same time, cooperate with the arranged second annular pipe, the second dust suction port, the telescopic pipe and the second branch pipe structure to extract the blocked dust, and the extracted dust enters the dust collecting box, which is convenient for later cleaning, and the height of the second dust cover can be adjusted according to the collecting tubes of different heights by the coordinated use of the arranged slider, the slide rod and the second spring structure.

[0025] 4. When the present invention is used, the second motor is started to drive the rotating rod and the material brush to rotate, so that the material brush brushes the screen plate to prevent the screen plate from being blocked by materials and to prevent low screening efficiency caused by material aggregation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The figure is a schematic diagram of the structure of a rotary vibrating screen.

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of a rotary vibrating screen.

[0028] Figure 3 A rotary vibrating screen Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0029] Figure 4 A rotary vibrating screen Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0030] Figure 5 A rotary vibrating screen Figure 2 Schematic diagram of the enlarged structure at point C in the middle.

[0031] Figure 6 The present invention is a schematic diagram of the cross-sectional structure of a first dust cover in a rotary vibrating screen.

[0032] In the figure: 1. screen frame; 101. first discharge pipe; 102. second discharge pipe; 2. first spring; 3. connecting ring plate; 4. supporting leg; 5. base; 6. vibration motor; 7. dust cover; 701. feed port; 702. positioning ring; 703. positioning groove; 8. bracket; 9. lifting assembly; 901. threaded rod; 902. threaded sleeve; 903. first bearing; 904. first gear; 905. second gear; 906. first motor; 10. material shifting assembly; 1001. second motor; 1002. rotating rod; 1003. second bearing; 1004. connecting frame; 1005. material shifting brush; 11. dustproof assembly; 1101. dust collecting box; 1102. vacuum cleaner; 1103. air intake Tube; 1104, first branch tube; 1105, second branch tube; 1106, telescopic tube; 1107, first dust cover; 1108, first annular tube; 1109, first dust suction port; 1110, second dust cover; 1111, second annular tube; 1112, second dust suction port; 1113, blocking net; 1114, slider; 1115, slide groove; 1116, slide bar; 1117, second spring; 1118, third annular tube; 1119, third dust suction port; 12, collecting cylinder; 13, blocking assembly; 1301, baffle; 1302, support plate; 1303, push plate; 1304, vertical rod; 1305, fixing block; 1306, limiting block; 1307, third spring; 14, sieve plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0034] In the present invention, the word "exemplary" is used to mean "used as an example, illustration or description". Any embodiment described as "exemplary" in the present invention is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present invention.

[0035] Example See also Figures 1 to 6 In an embodiment of the present invention, a rotary vibrating screen includes a screen frame 1, a dust cover 7 and a dustproof assembly 11, the screen frame 1 is provided with a first discharge pipe 101, the lower end of the screen frame 1 is provided with a second discharge pipe 102, the left and right ends of the screen frame 1 are provided with vibration motors 6, and a screen plate 14 is provided in the screen frame 1, a plurality of first springs 2 are provided at the lower end of the screen frame 1, a connecting ring plate 3 is provided at the lower end of the first spring 2, a plurality of supporting legs 4 are provided at the lower end of the connecting ring plate 3, and a base 5 is provided at the lower end of the supporting leg 4, a dust cover 7 is attached to the upper end of the screen frame 1, a feed port 701 is provided at the upper end of the dust cover 7, a blocking assembly 13 is provided in the feed port 701, and a dustproof assembly 11 is provided on the dust cover 7, a bracket 8 is provided at the upper end of the base 5, a lifting assembly 9 is provided on the bracket 8 corresponding to the dust cover 7, and a material shifting assembly 10 is provided at the lower end of the bracket 8 corresponding to the screen plate 14.

[0036] A positioning ring 702 is provided at the lower end of the dust cover 7 , and the positioning ring 702 is snap-connected with the screen frame 1 . A positioning groove 703 is provided at the upper end of the screen frame 1 corresponding to the positioning ring 702 .

[0037] Specifically, the positioning ring 702 and the positioning groove 703 are used in coordination with each other to facilitate the positioning and fitting of the dust cover 7 and the screen frame 1 .

[0038] The lifting assembly 9 includes a threaded rod 901, a threaded sleeve 902, a first bearing 903, a first gear 904, a second gear 905 and a first motor 906. The upper end of the dust cover 7 is symmetrically provided with a threaded rod 901, the threaded sleeve 902 is threadedly connected to the threaded rod 901, the upper end of the threaded sleeve 902 passes through the bracket 8, and a first bearing 903 is provided at the connection between the threaded sleeve 902 and the bracket 8. The upper end of the threaded sleeve 902 is provided with a first gear 904, and the second gear 905 is meshed between the two first gears 904. The lower end of the second gear 905 is provided with a rotating shaft, and the lower end of the rotating shaft is provided with a first motor 906. The lower end of the first motor 906 is fixedly connected to the bracket 8.

[0039] Specifically, the first motor 906 is started to drive the rotating shaft and the second gear 905 to rotate, the second gear 905 drives the first gear 904 and the threaded sleeve 902 to rotate, the threaded sleeve 902 drives the threaded rod 901 and the dust cover 7 to move downward, and the dust cover 7 closes the top of the screen frame 1 to prevent dust from flying when screening materials and affecting the working environment.

[0040] The material shifting assembly 10 includes a second motor 1001, a rotating rod 1002, a second bearing 1003, a connecting frame 1004 and a material shifting brush 1005. The second motor 1001 is provided at the lower end of the bracket 8, and the rotating rod 1002 penetrating the dust cover 7 is provided at the lower end of the second motor 1001. The material shifting brush 1005 is provided at the lower end of the rotating rod 1002, and the material shifting brush 1005 is in contact with the screen plate 14. The rotating rod 1002 is provided with a second bearing 1003, and the second bearing 1003 is symmetrically provided with a connecting frame 1004 fixedly connected to the bracket 8.

[0041] Specifically, the second motor 1001 is started to drive the rotating rod 1002 and the material brush 1005 to rotate, and the material brush 1005 brushes the screen plate 14 to prevent the screen plate 14 from being blocked by materials, and at the same time, it can prevent the aggregation of materials and cause low screening efficiency.

[0042] The dustproof assembly 11 includes a dust box 1101, a dust collector 1102, an air inlet pipe 1103, a first dust cover 1107 and a second dust cover 1110. The first discharge pipe 101 is provided with a first dust cover 1107, the second discharge pipe 102 is slidably connected with the second dust cover 1110, and the lower end of the second dust cover 1110 is attached to the collecting tube 12. The upper end of the dust cover 7 is provided with a dust box 1101, the right end of the dust box 1101 is provided with a dust collector 1102, and the left end of the dust box 1101 is connected to the dust collector 1102. The air inlet pipe 1103, the other end of the air inlet pipe 1103 passes through the dust cover 7, the other end of the air inlet pipe 1103 is connected to the third annular pipe 1118, the upper end of the third annular pipe 1118 is fixedly connected to the dust cover 7, the lower end of the third annular pipe 1118 is provided with a plurality of third dust suction ports 1119, the top of the first dust cover 1107 is provided with a first annular pipe 1108, the lower end of the first annular pipe 1108 is provided with a plurality of first dust suction ports 1109, the upper end of the first annular pipe 1108 is connected to the first branch pipe 1104, the first branch pipe 1104 is connected to the first branch pipe 1104, and the first branch pipe 1104 is connected to the first branch pipe 1104. The tube 1104 passes through the first dust cover 1107 and is connected to the air inlet pipe 1103. The second dust cover 1110 is provided with a blocking net 1113, and the outer wall of the second dust cover 1110 is provided with a second annular tube 1111. The inner wall of the second annular tube 1111 is provided with a plurality of second dust suction ports 1112 that pass through the second dust cover 1110. The left end of the second annular tube 1111 is connected to the telescopic tube 1106. The other end of the telescopic tube 1106 is connected to the second branch tube 1105. The second branch tube 1105 is connected to the air inlet pipe 1103. The second dust cover 1110 is symmetrically provided with sliders 1114, the sliders 1114 are slidably connected to the outer wall of the second discharge pipe 102, and the outer wall of the second discharge pipe 102 is provided with a slide groove 1115 corresponding to the slider 1114, the slide groove 1115 is provided with a slide rod 1116 penetrating the slider 1114, the slide rod 1116 is sleeved with a second spring 1117, the upper end of the second spring 1117 is fixedly connected to the slider 1114, and the lower end of the second spring 1117 is fixedly connected to the bottom end of the slide groove 1115.

[0043] Specifically, the vacuum cleaner 1102 is started to extract air, and the dust generated during screening in the screen frame 1 can be extracted through the provided air inlet pipe 1103, the third annular pipe 1118 and the third dust suction port 1119. The dust generated during the discharge of the first discharge pipe 101 can be blocked by the provided first dust cover 1107. The material falls downward under the action of gravity, while the dust floats upward. The first dust cover 1107 can block the dust within a certain range, and cooperates with the provided first branch pipe 1104, the first annular pipe 1108 and the first dust suction port 1109 structure to extract the blocked dust, thereby preventing the first discharge pipe 101 from When discharging materials, dust is generated. The second dust cover 1110 can block the dust generated when the second discharge pipe 102 discharges materials. The blocking net 1113 can block the materials. At the same time, the second annular tube 1111, the second dust suction port 1112, the telescopic tube 1106 and the second branch pipe 1105 structure are used to extract the blocked dust. The extracted dust enters the dust collecting box 1101, which is convenient for later cleaning. The slider 1114, the slide rod 1116 and the second spring 1117 are used in cooperation, so the height of the second dust cover 1110 can be adjusted according to the different heights of the collecting tube 12.

[0044] The blocking assembly 13 includes a baffle 1301, a support plate 1302, a push plate 1303, a vertical rod 1304, a fixed block 1305, a limit block 1306 and a third spring 1307. The baffle 1301 is movably connected in the feed port 701, the lower end of the baffle 1301 is attached to the support plate 1302, the right end of the support plate 1302 is fixedly connected to the inner wall of the feed port 701, the upper end of the baffle 1301 is attached to the push plate 1303, and the push plate 130 A vertical rod 1304 is provided at the upper end, a limit block 1306 is provided at the upper end of the vertical rod 1304, a fixed block 1305 is provided on the inner wall of the feed port 701, the vertical rod 1304 penetrates the fixed block 1305, the vertical rod 1304 is slidably connected with the fixed block 1305, and a third spring 1307 is sleeved on the vertical rod 1304, the upper end of the third spring 1307 is fixedly connected with the fixed block 1305, and the lower end of the third spring 1307 is fixedly connected with the push plate 1303.

[0045] Specifically, the material is put into the screen frame 1 through the feed port 701, the material drives the baffle 1301 to rotate, the baffle 1301 drives the push plate 1303 to move upward, the push plate 1303 compresses the third spring 1307, and when the material is put in, the push plate 1303 is driven downward by the elastic force of the third spring 1307, the push plate 1303 thereby pushes the baffle 1301 back to its original position, the baffle 1301 thereby closes the feed port 701 to prevent dust from flying out of the feed port 701 during screening.

[0046] The working principle of the present invention is: When the present invention is used, the material is put into the screen frame 1 through the feed port 701, the material drives the baffle 1301 to rotate, the baffle 1301 drives the push plate 1303 to move upward, the push plate 1303 compresses the third spring 1307, and when the material is put in, the push plate 1303 is driven to move downward under the action of the elastic force of the third spring 1307, the push plate 1303 thereby pushes the baffle 1301 to return to its original position, the baffle 1301 thereby closes the feed port 701 to prevent dust from flying out of the feed port 701 during screening, the vibration motor 6 is started to drive the screen frame 1 and the screen plate 14 to vibrate, and the screen plate 14 thereby screens the material. At the same time, the first motor 906 is started to drive the rotating shaft and the second gear 905 to rotate, the second gear 905 drives the first gear 904 and the threaded sleeve 902 to rotate, the threaded sleeve 902 drives the threaded rod 901 and the dust cover 7 to move downward, and the dust cover 7 closes the top of the screen frame 1 to prevent dust from flying when screening materials and affecting the working environment. At the same time, the second motor 1001 is started to drive the rotating rod 1002 and the material brush 1005 to rotate, and the material brush 1005 brushes the screen plate 14 to prevent the material from blocking the screen plate 14, and at the same time, to prevent the material from gathering and causing low screening efficiency, and at the same time, the vacuum cleaner 1102 is started. The dust generated during screening in the screen frame 1 can be extracted through the air inlet pipe 1103, the third annular pipe 1118 and the third dust suction port 1119. The dust generated during the discharge of the first discharge pipe 101 can be blocked through the first dust cover 1107. The material falls downward under the action of gravity, while the dust floats upward. The first dust cover 1107 can block the dust within a certain range. The first branch pipe 1104, the first annular pipe 1108 and the first dust suction port 1109 are used in combination to extract the blocked dust, thereby avoiding the generation of dust during the discharge of the first discharge pipe 101. Feiyang, the second dust cover 1110 can block the dust generated when the second discharge pipe 102 discharges the material, and the blocking net 1113 can block the material. At the same time, the second annular tube 1111, the second dust suction port 1112, the telescopic tube 1106 and the second branch pipe 1105 structure are used to extract the blocked dust, and the extracted dust enters the dust collecting box 1101, which is convenient for later cleaning. The slider 1114, the slide rod 1116 and the second spring 1117 are used in cooperation with each other, so it is convenient to adjust the height of the second dust cover 1110 according to the collecting tube 12 of different heights.

[0047] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rotary vibrating screen, comprising a screen frame (1), a dust cover (7) and a dust prevention assembly (11), It is characterized in that The sieve frame (1) is provided with a first discharge pipe (101), the lower end of the sieve frame (1) is provided with a second discharge pipe (102), the left and right ends of the sieve frame (1) are provided with vibration motors (6), and a sieve plate (14) is provided in the sieve frame (1), a plurality of first springs (2) are provided at the lower end of the sieve frame (1), a connecting ring plate (3) is provided at the lower end of the first spring (2), a plurality of supporting legs (4) are provided at the lower end of the connecting ring plate (3), and a base (5) is provided at the lower end of the supporting leg (4), a dust cover (7) is attached to the upper end of the sieve frame (1), a feed port (701) is provided at the upper end of the dust cover (7), a blocking component (13) is provided in the feed port (701), and a dust cover (7) is provided with a dust cover (11), a bracket (8) is provided at the upper end of the base (5), a lifting component (9) is provided on the bracket (8) corresponding to the dust cover (7), and a material shifting component (10) is provided at the lower end of the bracket (8) corresponding to the sieve plate (14).

2. A rotary vibrating screen according to claim 1, It is characterized in that The dustproof assembly (11) comprises a dust collecting box (1101), a dust collector (1102), an air inlet pipe (1103), a first dust cover (1107) and a second dust cover (1110); the first discharge pipe (101) is provided with a first dust cover (1107); the second discharge pipe (102) is slidably connected with the second dust cover (1110); the lower end of the second dust cover (1110) is attached with a collecting barrel (12); the upper end of the dust cover (7) is provided with a collecting A dust box (1101), a dust collector (1102) is provided at the right end of the dust box (1101), the left end of the dust box (1101) is connected to an air intake pipe (1103), the other end of the air intake pipe (1103) passes through a dust cover (7), the other end of the air intake pipe (1103) is connected to a third annular pipe (1118), the upper end of the third annular pipe (1118) is fixedly connected to the dust cover (7), and the lower end of the third annular pipe (1118) is provided with a plurality of third dust suction ports (1119).

3. A rotary vibrating screen according to claim 2, It is characterized in that A first annular tube (1108) is provided at the top of the first dust cover (1107), a plurality of first dust suction ports (1109) are provided at the lower end of the first annular tube (1108), the upper end of the first annular tube (1108) is connected to the first branch tube (1104), and the first branch tube (1104) passes through the first dust cover (1107) and is connected to the air intake pipe (1103).

4. A rotary vibrating screen according to claim 2, It is characterized in that A blocking net (1113) is provided inside the second dust cover (1110), and a second annular tube (1111) is provided on the outer wall of the second dust cover (1110); a plurality of second dust suction ports (1112) penetrating the second dust cover (1110) are provided on the inner wall of the second annular tube (1111); the left end of the second annular tube (1111) is connected to the telescopic tube (1106); the other end of the telescopic tube (1106) is connected to the second branch tube (1105); and the second branch tube (1105) is connected to the air inlet pipe (1103).

5. A rotary vibrating screen according to claim 4, It is characterized in that The second dust cover (1110) is symmetrically provided with a slider (1114), the slider (1114) is slidably connected to the outer wall of the second discharge pipe (102), and the outer wall of the second discharge pipe (102) is provided with a slide groove (1115) corresponding to the slider (1114), the slide groove (1115) is provided with a slide rod (1116) passing through the slider (1114), the slide rod (1116) is sleeved with a second spring (1117), the upper end of the second spring (1117) is fixedly connected to the slider (1114), and the lower end of the second spring (1117) is fixedly connected to the bottom end of the slide groove (1115).

6. A rotary vibrating screen according to claim 1, It is characterized in that The lifting assembly (9) comprises a threaded rod (901), a threaded sleeve (902), a first bearing (903), a first gear (904), a second gear (905) and a first motor (906); the threaded rod (901) is symmetrically arranged at the upper end of the dust cover (7); the threaded rod (901) is threadedly connected to the threaded sleeve (902); the upper end of the threaded sleeve (902) passes through the bracket (8); a first bearing (903) is arranged at the connection between the threaded sleeve (902) and the bracket (8); the upper end of the threaded sleeve (902) is provided with a first gear (904); two first gears (904) are meshed with a second gear (905); a rotating shaft is arranged at the lower end of the second gear (905); a first motor (906) is arranged at the lower end of the rotating shaft; and the lower end of the first motor (906) is fixedly connected to the bracket (8).

7. A rotary vibrating screen according to claim 1, It is characterized in that The material shifting assembly (10) comprises a second motor (1001), a rotating rod (1002), a second bearing (1003), a connecting frame (1004) and a material shifting brush (1005); the second motor (1001) is provided at the lower end of the bracket (8); the rotating rod (1002) penetrating the dust cover (7) is provided at the lower end of the second motor (1001); the material shifting brush (1005) is provided at the lower end of the rotating rod (1002); the material shifting brush (1005) is in contact with the screen plate (14); the second bearing (1003) is provided on the rotating rod (1002); and the connecting frame (1004) fixedly connected to the bracket (8) is symmetrically provided on the left and right of the second bearing (1003).

8. A rotary vibrating screen according to claim 1, It is characterized in that The blocking assembly (13) comprises a baffle (1301), a support plate (1302), a push plate (1303), a vertical rod (1304), a fixed block (1305), a limit block (1306) and a third spring (1307); the baffle (1301) is movably connected inside the feed port (701); the support plate (1302) is attached to the lower end of the baffle (1301); the right end of the support plate (1302) is fixedly connected to the inner wall of the feed port (701); the push plate (1303) is attached to the upper end of the baffle (1301); 03) A vertical rod (1304) is provided at the upper end, a limit block (1306) is provided at the upper end of the vertical rod (1304), a fixed block (1305) is provided on the inner wall of the feed port (701), the vertical rod (1304) passes through the fixed block (1305), the vertical rod (1304) and the fixed block (1305) are slidably connected, and a third spring (1307) is sleeved on the vertical rod (1304), the upper end of the third spring (1307) is fixedly connected to the fixed block (1305), and the lower end of the third spring (1307) is fixedly connected to the push plate (1303).

9. A rotary vibrating screen according to claim 1, It is characterized in that A positioning ring (702) is provided at the lower end of the dust cover (7), the positioning ring (702) is snap-connected to the screen frame (1), and a positioning groove (703) is provided at the upper end of the screen frame (1) corresponding to the positioning ring (702).

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