CN215695706U

CN215695706U - Double-drive synchronous eccentric adjustment type vibration exciter vibrating screen

Info

Publication number: CN215695706U
Application number: CN202122151158.7U
Authority: CN
Inventors: 袁希魁; 胡光龙; 朱启亮; 宋良花
Original assignee: Haihui Group Co ltd
Current assignee: Haihui Group Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-02-01
Anticipated expiration: 2031-09-07

Abstract

The utility model relates to a dual-drive synchronous eccentric adjustment type vibration exciter vibrating screen, and belongs to the technical field of industrial vibrating screens. The vibrating screen comprises a screen body, a screen mesh, a base, two sets of double eccentric block vibration exciters and two driving motors which synchronously rotate in the reverse direction, wherein the left side and the right side of the screen body respectively extend upwards to form a supporting frame, the two sets of double eccentric block vibration exciters are respectively connected to the supporting frames on the two sides, an axis connecting line of two eccentric blocks of the double eccentric block vibration exciters and the horizontal plane form a 60-degree included angle, the two driving motors are respectively connected with the eccentric blocks of the vibration exciters with the same axis through universal couplings, the eccentric blocks corresponding to the two sets of vibration exciters are also connected through universal couplings, the bottom surface of the screen body is inclined at an included angle of 20 degrees with the plane, the screen mesh is flatly laid on the bottom surface of the screen body, and the two sides of the screen body are respectively connected with the base through two sets of damping springs. The vibrating screen designed by the utility model has the advantages of strong exciting force, good vibrating effect and high screening efficiency.

Description

Double-drive synchronous eccentric adjustment type vibration exciter vibrating screen

Technical Field

The utility model relates to the technical field of industrial vibrating screens, in particular to a dual-drive synchronous eccentric adjustment type vibration exciter vibrating screen.

Background

The vibrating screen is widely applied to the industries of metallurgy, coal, chemical industry, thermal power, mine, building materials and the like, and achieves the purpose of screening by throwing materials on a screen surface by utilizing the principle of vibration excitation, making the materials move forwards in a straight line and adding a reasonably matched screen. The existing vibrating screen has the problems of poor vibrating effect, low screening efficiency and troublesome maintenance and replacement of the screen.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model designs the dual-drive synchronous eccentric adjustment type vibration exciter vibrating screen which has the advantages of good vibration exciting effect, high screening efficiency and convenience in screen replacement.

The technical scheme adopted by the utility model is as follows: the vibrating screen comprises a screen body, a screen mesh, a base, two groups of double eccentric block vibration exciters and two driving motors which synchronously and reversely rotate, wherein the left side and the right side of the screen body respectively extend upwards to form a support frame, the two groups of double eccentric block vibration exciters are coaxially arranged and are respectively connected on the support frames at the two sides, the axis connecting line of the two eccentric blocks of the double eccentric block vibration exciters forms a 60-degree included angle with the horizontal plane, the two driving motors are respectively coaxially arranged with the two eccentric blocks of the double eccentric block vibration exciters and are arranged on one side of the screen body through a motor support, the driving motors are connected with the eccentric blocks of the coaxial double eccentric block vibration exciters through universal couplings, the eccentric blocks corresponding to the two groups of double eccentric block vibration exciters are also connected through universal couplings, the bottom surface of the screen body forms a 20-degree included angle with the horizontal plane to be inclined, and the screen mesh is flatly laid on the bottom surface of the screen body, and the two sides of the screen body are respectively connected with the base through damping springs. The bottom surface and the screen cloth installation angle of screen frame control are at 20, and the installation angle of vibration exciter and equipment screen frame is controlled in 60, and proper installation angle is favorable to the vibration exciter to drive equipment screening, and the helping hand material realizes the screening. The vibrating screen is provided with two sets of double eccentric block vibration exciters driven by two driving motors rotating synchronously and reversely to generate vibration, and has good vibration effect and high screening efficiency.

Furthermore, the left side and the right side of the screen are respectively provided with an upward bent hooked edge, the left side and the right side of the inside of the screen body are respectively provided with angle plates along the bottom surfaces thereof, the hooked edges on the two sides of the screen are respectively positioned on the horizontal plate surfaces of the angle plates on the two sides of the screen body, the two sides of the inside of the screen body are respectively provided with a plurality of tension plates, the middle parts of the tension plates are bent and protruded, the middle plate bodies are provided with connecting holes and are connected with the side surfaces of the screen body through adjusting bolts, the bottoms of the tension plates are inclined plate bodies, and the inclined plate bodies are inserted into the hooked edges of the screen body. The tension plate is tightened through the adjusting bolt, the tension degree of the screen is adjusted, and the device is convenient and fast.

Furthermore, a plurality of left and right elongated long through holes are formed in the horizontal plate surfaces of the angle plates, positioning bolts are arranged in the long through holes of the angle plates on the two sides and connected with the left side and the right side of the screen mesh for positioning, a plurality of cross beams are arranged on the bottom surface of the screen body, 3 supporting plates are connected to the upper surface among the cross beams, the 3 supporting plates are evenly distributed, cushion strips are arranged at the top ends of the supporting plates, and the mesh body of the screen mesh is pressed on the cushion strips of the 3 supporting plates. The two ends of the screen are convenient to move and position due to the long perforation, the lower side of the screen body of the screen is supported by the supporting plate with the filler strip, and the impact resistance of the screen body is enhanced.

Furthermore, two fixing seats are uniformly distributed on a cross beam of the screen body, the height of the upper surfaces of the fixing seats is flush with the filler strip and corner plates on the left side and the right side, internal threads are formed in the axis of the fixing seats, and the screen mesh is connected and fixed with the fixing seats through bolts with pressing sheets.

Furthermore, be provided with four spinal branch daggers on the base, four spinal branch daggers include two long posts and two short columns, the screen frame is connected with four spinal branch daggers of base through four groups of damping spring, the bottom of base also is connected with ground pedestal through damping device.

Further, the periphery of screen frame is enclosed by the steel sheet and is enclosed into the sieve case, the junction of sieve case passes through annular rivet fixation, the last side level of sieve case sets up, and it has the feed inlet to open, and the downside is opened there is the discharge gate.

Compared with the prior art, the dual-drive synchronous eccentric adjustment type vibration exciter vibrating screen has the advantages that: the installation angles of the bottom surface of the screen body and the screen of the vibrating screen are controlled to be 20 degrees, the installation angle of the vibration exciter and the horizontal plane is controlled to be 60 degrees, the proper installation angle is favorable for the vibration exciter to drive equipment to sieve, and the power-assisted material is sieved; the vibrating screen is characterized in that two driving motors synchronously and reversely rotate drive two groups of double-eccentric-block vibration exciters to vibrate simultaneously, and the exciting forces generated by the eccentric blocks on the vibration exciters are mutually offset in the direction parallel to the axis of the motor under the action of the mode, so that a resultant force is superposed in the direction perpendicular to the motor shaft, the motion trail of the vibrating screen is a straight line, the vibrating effect is good, and the screening efficiency is high; the screen is connected with the bottom surface of the screen body through the angle plates at the two sides, the supporting plate at the middle part and the fixing seat, the installation is stable, the impact resistance of the screen is ensured, meanwhile, the looseness of the screen can be adjusted through the tensioning plates at the two sides in the screen body, and the application is convenient; the bottom of base also sets up damping device and ground pedestal connection, is favorable to alleviateing dynamic load and transmits to ground basis, has improved the life of structure, has improved the reliability on basis.

Drawings

FIG. 1 is a schematic structural diagram of a dual-drive synchronous eccentric adjustment type vibration exciter vibrating screen.

FIG. 2 is a schematic side view of a dual drive synchronous eccentric adjustment type exciter shaker.

Fig. 3 is a schematic sectional view of the junction between the bottom surface of the screen body and the screen mesh.

Fig. 4 is an enlarged partial schematic view of the circled area in fig. 3.

In the figure, a screen body 1, a double eccentric block vibration exciter 2, a driving motor 3, a screen mesh 4, a base 5, a damping spring 6, a support frame 11, a bottom surface 12, a cross beam 13, a screen box 14, a corner plate 15, a tension plate 16, a support plate 17, a fixed seat 18, an adjusting bolt 19, a mounting seat 20, a universal coupling 21, a motor support 31, a hook edge 41, a short column 51, a long column 52, a damping device 53 and a cushion strip 171 are arranged.

Detailed Description

The utility model is further described with reference to the following figures and specific embodiments. The technical solutions in the embodiments of the present invention are clearly and completely described, and the described embodiments are only some embodiments, but not all embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1, 2, 3 and 4, the utility model discloses an embodiment of a dual-drive synchronous eccentric adjustment type vibration exciter vibrating screen, and in the embodiment, the dual-drive synchronous eccentric adjustment type vibration exciter vibrating screen comprises a screen body 1, a screen 4, a base 5, two groups of dual-eccentric-block vibration exciters 2 and two driving motors 3 which synchronously and reversely rotate.

The screen body 1 comprises a metal frame structure, the left side and the right side of the frame structure are respectively extended upwards with a support frame 11, the two groups of double-eccentric-block vibration exciters 2 are coaxially arranged and are respectively fixedly connected to the support frames 11 on the two sides through connecting bolts with 10.9-level friction and high strength. The connecting line of the axes of the two eccentric blocks of the double eccentric block vibration exciter 2 forms an included angle of 60 degrees with the horizontal plane.

The two driving motors 3 are coaxially arranged with the two eccentric blocks of the double eccentric block vibration exciter respectively and are installed on the right side of the screen body 1 through a motor support 31, the two driving motors 3 are connected with the eccentric blocks of the double eccentric block vibration exciter on the right side corresponding to the two eccentric blocks of the double eccentric block vibration exciter on the right side through universal coupling connection 21 respectively, and the two driving motors 3 synchronously and reversely drive the two eccentric blocks of the double eccentric block vibration exciter 2 on the right side to rotate. The eccentric blocks which correspond to the same axes of the two groups of double eccentric block vibration exciters 2 are also connected through a universal coupling 21 to drive the left double eccentric block vibration exciters 2 to rotate.

The bottom surface 12 of the screen body 1 is inclined at an included angle of 20 degrees with the horizontal plane, and the screen 4 is flatly laid on the bottom surface of the screen body 1. The left and right ends of the screen 4 are respectively provided with an upward bent hook edge 41. The left and right sides of the inside of the screen body 1 are respectively provided with a corner plate 15 along the bottom surface 12, and the hooked edges 41 at the left and right ends of the screen 4 are respectively positioned on the horizontal plate surfaces of the corner plates 15 at the two sides of the screen body 1. The horizontal plate surfaces of the angle plates 15 at two sides are provided with a plurality of long through holes which are elongated left and right, and the long through holes of the angle plates 15 at two sides are respectively provided with a positioning bolt which is connected and positioned with the left side and the right side of the screen 4. The two sides of the inside of the screen body 1 are respectively provided with a plurality of tensioning plates 16, the middle parts of the tensioning plates 16 are bent and protruded, the middle plate body is provided with a connecting hole and is connected with the side surface of the screen body 1 through an adjusting bolt 19, the bottom of each tensioning plate 16 is an inclined plate body, and the inclined plate body is inserted into the hook edge 41 of the screen 4. The tension plate 16 is tightened through the adjusting bolt 19, and the tension degree of the screen 4 is adjusted.

The bottom surface 12 of screen frame 1 is provided with many crossbeams 13, is connected with 3 backup pads 17 between the upper surface of

many crossbeams

13, and 3 backup pads 17 are evenly arranged, and the top block of backup pad 17 is connected with filler strip 171, and the dictyosome of screen cloth 4 is pressed on the filler strip 171 of 3 backup pads 17. Two fixing seats 18 are uniformly distributed on the cross beam 13 of the screen body 1, and the height of the upper surfaces of the fixing seats 18 is approximately flush with the height of the filler strip 171 and the heights of the corner plates 15 on the left side and the right side. The axis of the fixed seat 18 is provided with an internal thread, and the screen 4 is connected and fixed with the fixed seat 18 through a bolt with a pressing sheet.

The frame structure of the screen frame 1 is surrounded on all sides and on the upper side by ready-made screen boxes 14 of steel plates. The steel plate is connected and fixed with the frame structure of the screen body 1 through ring groove rivets. The upper side surface of the screen box 14 is horizontal and is provided with a feeding hole, and the end part of the low point is provided with a discharging hole. Two mounting seats 20 are respectively connected to two sides of the frame structure of the screen body 1. The base 5 is provided with 4 upward supporting columns, including two short columns 51 and two long columns 52. The positions of the four supporting columns correspond to the positions of the mounting seats 20 on the two sides of the screen body 1 in the vertical direction one by one. The bottom of the mounting seat 20 is connected to the tops of the four supporting columns through damping springs 6 respectively, so that the bottom surface 12 of the screen body 1 is inclined at an angle of 20 degrees. In addition, the bottom of the base 5 is connected to the ground base through a spring damper 53.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the scope of the utility model, which is defined by the appended claims and the description of the utility model.

Claims

1. The double-drive synchronous eccentric adjustment type vibration exciter vibrating screen is characterized by comprising a screen body, a screen mesh, a base, two groups of double eccentric block vibration exciters and two driving motors which synchronously and reversely rotate, wherein the left side and the right side of the screen body respectively extend upwards to form a support frame, the two groups of double eccentric block vibration exciters are coaxially arranged and are respectively connected to the support frames on the two sides, the axis connecting line of the two eccentric blocks of each group of double eccentric block vibration exciters forms an included angle of 60 degrees with the horizontal plane, the two driving motors are respectively coaxially arranged with the two eccentric blocks of the double eccentric block vibration exciters and are arranged on one side of the screen body through a motor support, the driving motors are connected with the eccentric blocks of the coaxial double eccentric block vibration exciters through universal couplings, the eccentric blocks which correspond to the coaxial centers of the two groups of double eccentric block vibration exciters are also connected through the universal couplings, and the included angle of 20 degrees is formed between the bottom surface of the screen body and the horizontal plane, the screen cloth tiling is on the bottom surface of screen frame, the both sides of screen frame are connected with the base through damping spring respectively.

2. The vibration exciter vibrating screen with the double-drive synchronous eccentric adjustment type according to claim 1, wherein hook edges which are bent upwards are respectively arranged on the left side and the right side of the screen, corner plates are respectively arranged on the left side and the right side of the inside of the screen along the bottom surface of the screen, the hook edges on the two sides of the screen are respectively located on horizontal plate surfaces of the corner plates on the two sides of the screen, a plurality of tensioning plates are respectively arranged on the two sides of the inside of the screen, the middle of each tensioning plate is bent and protruded, a connecting hole is formed in a middle plate body of each tensioning plate and is connected with the side surface of the screen through an adjusting bolt, an inclined plate body is arranged at the bottom of each tensioning plate, and the inclined plate body is inserted into the hook edge of the screen.

3. The vibration exciter vibrating screen with the dual-drive synchronous eccentric adjustment type according to claim 2, characterized in that a plurality of left and right elongated long through holes are formed in the horizontal plate surfaces of the angle plates, positioning bolts are respectively arranged in the long through holes of the angle plates on the two sides and connected and positioned with the left and right sides of the screen mesh, a plurality of cross beams are arranged on the bottom surface of the screen body, 3 supporting plates are connected to the upper surfaces of the cross beams, the 3 supporting plates are uniformly arranged, filler strips are arranged at the top ends of the supporting plates, and the mesh body of the screen mesh is pressed on the filler strips of the 3 supporting plates.

4. The dual-drive synchronous eccentric adjustment type vibration exciter vibrating screen according to claim 3, wherein two fixing seats are uniformly distributed on a cross beam of the screen body, the height of the upper surface of each fixing seat is flush with the filler strip and corner plates on the left side and the right side, an internal thread is arranged at the axis of each fixing seat, and the screen mesh is fixedly connected with the fixing seats through bolts with pressing sheets.

5. The dual-drive synchronous eccentric adjustment type vibration exciter vibrating screen according to claim 4, wherein four supporting columns are arranged on the base, each supporting column comprises two long columns and two short columns, the screen body is connected with the four supporting columns of the base through four groups of damping springs, and the bottom of the base is also connected with a ground base through a damping device.

6. The vibration exciter vibrating screen with the dual-drive synchronous eccentric adjustment type according to claim 5, wherein the periphery of the screen body is surrounded by steel plates to form a screen box, the joint of the screen box is fixed through ring groove rivets, a feed port is formed in the upper side of the screen box, and a discharge port is formed in the lower side of the screen box.