Efficient circular vibrating screen

Abstract

The utility model discloses an efficient circular vibrating screen which comprises a vibrating shell and an efficient vibrating mechanism. A sieve plate is slidably connected into the vibration shell; the efficient vibration mechanism comprises a first rotating shaft, eccentric wheels, a second rotating shaft, rotating convex discs, a fixing base and a first telescopic column, the first rotating shaft and the second rotating shaft are rotationally connected between the left wall and the right wall of the vibration shell through bearings, the three evenly-distributed eccentric wheels are arranged on the outer side of the first rotating shaft, and the two symmetrically-distributed rotating convex discs are arranged on the outer side of the second rotating shaft; according to the efficient circular vibrating screen, one stage drives multiple stages to operate, the whole device vibrates, meanwhile, a screened part vibrates independently again, the overall vibration frequency of the screened part of the device is improved in a vibration frequency superposition mode, the vibration efficiency is improved, and the vibration efficiency is improved. And the vibration screening efficiency of the device on the materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating screens, in particular to a high-efficiency circular vibrating screen. Background Art

[0002] Circular vibrating screen is a new type of vibrating screen with circular vibration, multiple layers and high efficiency. Some circular vibrating screens are built on the bottom bracket. The screening shell is installed above the bottom bracket through the buffer shock-absorbing component. The screening plate is installed inside the screening shell. The middle part of the screening shell is connected to the eccentric block through the rotating shaft. The driving element makes the rotating shaft drive the eccentric block to rotate, so that the whole device vibrates vertically under the action of the rotating center of gravity of the eccentric block, and then screens the material on the screening plate. However, the device realizes vibration screening of the material through the rotation of the eccentric block. The overall vibration screening structure of the device is relatively simple, and the vibration frequency of the device itself is limited. There is room for improvement in the screening efficiency of the material. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a high-efficiency circular vibrating screen. The device drives multiple stages to operate at one stage. When the device as a whole vibrates, the screening part vibrates separately again. The overall vibration frequency of the screening part of the device is increased by superimposing the vibration frequency, thereby improving the vibration screening efficiency of the device for materials, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a high-efficiency circular vibrating screen, comprising a vibrating shell and a high-efficiency vibrating mechanism;

[0005] Vibrating shell: a sieve plate is slidably connected inside it;

[0006] High-efficiency vibration mechanism: it includes a rotating shaft 1, an eccentric wheel, a rotating shaft 2, a rotating cam, a fixed seat and a telescopic column 1. The rotating shaft 1 and the rotating shaft 2 are both rotatably connected between the left and right walls of the vibration shell through bearings. Three evenly distributed eccentric wheels are provided on the outside of the rotating shaft 1, and two symmetrically distributed rotating cams are provided on the outside of the rotating shaft 2. The rotating cams are installed in conjunction with the screen plate. Two evenly distributed fixed seats are provided on the left and right walls of the vibration shell. The upper sides of the fixed seats are fixedly connected to the lower side of the screen plate through the telescopic end of the telescopic column 1. The device drives multiple stages to operate at one level. While the device as a whole vibrates, the screening part vibrates separately again. The overall vibration frequency of the screening part of the device is improved by superimposing the vibration frequency, thereby improving the vibration screening efficiency of the device for materials.

[0007] Furthermore, it also includes a control switch, which is located outside the vibration shell. The input end of the control switch is electrically connected to the external power supply, which makes it convenient to control the electrical components.

[0008] Furthermore, the high-efficiency vibration mechanism also includes a spring 1, which is respectively arranged between the fixed seat and the screen plate. The spring 1 is movably connected to the outer end of the adjacent telescopic column 1, and the compression force of the spring 1 makes the screen plate elastically reset after moving down.

[0009] Furthermore, the high-efficiency vibration mechanism also includes a pulley and a belt, and the pulleys are respectively arranged at the right ends of the rotating shaft one and the rotating shaft two. The two pulleys are connected by a belt transmission, and the rotating shaft two in the high-efficiency circular vibrating screen rotates through the belt transmission.

[0010] Furthermore, a protective cover is provided on the right side of the vibration shell, and the pulley and belt are located inside the protective cover, which wraps and protects the pulley and belt in the high-efficiency circular vibrating screen.

[0011] Furthermore, a drive motor is provided on the left side of the vibration shell, the input end of the drive motor is electrically connected to the output end of the control switch, and the output shaft of the drive motor is fixedly connected to the left end of the rotating shaft 1, providing power for the high-efficiency circular vibrating screen to screen materials.

[0012] Furthermore, the lower end of the vibration shell is fixedly connected to a supporting base through four evenly distributed dampers and spring 2, and spring 2 is movably connected to the outer end of the adjacent damper to reduce the relative vibration and shaking between the supporting base of the high-efficiency circular vibrating screen and the ground.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the high-efficiency circular vibrating screen has the following advantages:

[0014] When using a high-efficiency circular vibrating screen to vibrate and screen materials, the first level of the device drives multiple levels to operate through the rotating shaft 1, eccentric wheel, rotating shaft 2, rotating cam, fixed seat, telescopic column 1, spring 1, pulley and belt. While the device as a whole vibrates, the screening part vibrates again separately. The overall vibration frequency of the screening part of the device is increased by superimposing the vibration frequencies, thereby improving the vibration screening efficiency of the device for materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the right side structure of the present utility model.

[0018] In the figure: 1 vibration shell, 2 control switch, 3 high-efficiency vibration mechanism, 31 rotating shaft 1, 32 eccentric wheel, 33 rotating shaft 2, 34 rotating flange, 35 fixing seat, 36 telescopic column 1, 37 spring 1, 38 pulley, 39 belt, 4 protective cover, 5 driving motor, 6 screen plate, 7 damper, 8 spring 2, 9 supporting base. DETAILED DESCRIPTION

[0019] 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 embodiments described 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 ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 , this embodiment provides a technical solution: a high-efficiency circular vibrating screen, comprising a vibrating shell 1 and a high-efficiency vibrating mechanism 3;

[0021] Vibrating shell 1: A sieve plate 6 is slidably connected inside it. The lower end of the vibrating shell 1 is fixedly connected to a supporting base frame 9 through four evenly distributed dampers 7 and spring 2 8. The spring 2 8 is movably connected to the outer end of the adjacent damper 7. During the vibration screening process of the material, the elastic contraction of the spring 2 8 and the friction or hydraulic resistance of the elastic elements and bearing elements inside the damper 7 convert the vibration force on the supporting base frame 9 into heat energy release, thereby reducing the relative vibration and shaking between the supporting base frame 9 and the ground;

[0022] High-efficiency vibration mechanism 3: It includes a rotating shaft 31, an eccentric wheel 32, a rotating shaft 2 33, a rotating cam 34, a fixed seat 35 and a telescopic column 1 36. The rotating shaft 1 31 and the rotating shaft 2 33 are both rotatably connected between the left and right walls of the vibration shell 1 through bearings. Three evenly distributed eccentric wheels 32 are provided on the outside of the rotating shaft 1 31, and two symmetrically distributed rotating cams 34 are provided on the outside of the rotating shaft 2 33. The rotating cams 34 are installed in conjunction with the sieve plate 6. Two evenly distributed fixing seats 35 are provided on the left and right walls of the vibration shell 1. The upper sides of the fixing seats 35 are fixedly connected to the lower side of the sieve plate 6 through the telescopic end of the telescopic column 1 36. It also includes a control switch 2. The control switch 2 is located outside the vibration shell 1, and the input end of the control switch 2 is connected to the external power supply. The efficient vibration mechanism 3 also includes a spring 37, which is respectively arranged between the fixed seat 35 and the screen plate 6. The spring 37 is movably connected to the outer end of the adjacent telescopic column 36. The efficient vibration mechanism 3 also includes a pulley 38 and a belt 39. The pulley 38 is respectively arranged at the right end of the rotating shaft 31 and the rotating shaft 2 33. The two pulleys 38 are connected by a belt 39. A protective cover 4 is provided on the right side of the vibration shell 1. The pulley 38 and the belt 39 are both located inside the protective cover 4. A drive motor 5 is provided on the left side of the vibration shell 1. The input end of the drive motor 5 is electrically connected to the output end of the control switch 2. The output shaft of the drive motor 5 is fixedly connected to the left end of the rotating shaft 31, and the material is vibrated and screened through the circular vibrating screen. When the material enters the upper side of the screen plate 6 through the upper rear end of the device, the control switch 2 starts the drive motor 5 so that its output shaft drives the rotating shaft 1 31 to rotate, and the rotating shaft 1 31 drives the eccentric wheel 32 to rotate. During the rotation of the eccentric wheel 32, the center of gravity is not located on the axis of the rotating shaft 1 31, thereby driving the vibration shell 1 to vibrate vertically as a whole, and then making the screen plate 6 vibrate to perform vibration screening operation on the material, the rotating shaft 1 31 drives the pulley 38 at the lower end to rotate, and the pulley 38 drives the upper pulley 38 to rotate through the belt 39. The belt transmission diameters between the two pulleys 38 are different, thereby ensuring that the belt 39 realizes belt transmission, and the rotating shaft 2 33 drives the two rotating cams 34 to rotate. During the rotation of the rotating cam 34, when its When the raised part contacts the surface of the sieve plate 6, the sieve plate 6 is pressed down, and the telescopic end of the telescopic column 36 and the spring 37 contract. When the raised part of the rotating cam 34 is no longer in contact with the surface of the sieve plate 6, the sieve plate 6 is moved up and reset by the contraction force of the spring 37, thereby making the sieve plate 6 vibrate vertically. When the circular vibrating screen vibrates as a whole, the sieve plate 6 vibrates vertically again. The rotating shaft 31 rotates one circle, the eccentric wheel 32 drives the entire device to vibrate once, and the rotating cam 34 drives the sieve plate 6 to vibrate three times. The overall vibration frequency of the sieve plate 6 is increased by superposition of the vibration frequencies, thereby improving the screening efficiency of the device for materials. It is easy to use and is designed by designing the structural distribution of the eccentric wheel 32 and the rotating cam 34.When the eccentric wheel 32 applies downward vibration to the entire device, the rotating cam 34 does not apply upward vibration to the screen plate 6, avoiding vibration cancellation between the two. The protective cover 4 protects the pulley 38 and belt 39 from contact with the external environment. The device drives multiple stages of operation with one stage. While the entire device vibrates, the screening part vibrates separately. By superimposing the vibration frequencies, the overall vibration frequency of the screening part of the device is increased, thereby improving the device's vibration screening efficiency for materials.

[0023] The working principle of a high-efficiency circular vibrating screen provided by the utility model is as follows: when the circular vibrating screen is used to vibrate and screen the material, the material enters the upper side of the screen plate 6 through the upper rear end of the device, and the control switch 2 starts the driving motor 5 so that its output shaft drives the rotating shaft 31 to rotate, and the rotating shaft 31 drives the eccentric wheel 32 to rotate. During the rotation of the eccentric wheel 32, the center of gravity is not located on the axis of the rotating shaft 31, thereby driving the entire vibration shell 1 to vibrate vertically, and then the screen plate 6 vibrates to perform a vibration screening operation on the material, and the rotating shaft 31 drives the lower end The pulley 38 rotates, and the pulley 38 drives the upper pulley 38 to rotate through the belt 39. The belt transmission diameters between the two pulleys 38 are different, so as to ensure that the belt 39 realizes belt transmission. The rotating shaft 33 drives the two rotating cams 34 to rotate. During the rotation of the rotating cam 34, when its convex part contacts the surface of the sieve plate 6, the sieve plate 6 is pressed down, and the telescopic end of the telescopic column 1 36 and the spring 1 37 contract. When the convex part of the rotating cam 34 does not contact the surface of the sieve plate 6, the spring 1 37 is pressed down. 7 The contraction elastic force causes the screen plate 6 to move up and reset, thereby causing the screen plate 6 to vibrate vertically. When the circular vibrating screen vibrates as a whole, the screen plate 6 vibrates vertically again. The rotating shaft 31 rotates one circle, the eccentric wheel 32 drives the entire device to vibrate once, and the rotating cam 34 drives the screen plate 6 to vibrate three times. By superimposing the vibration frequencies, the overall vibration frequency of the screen plate 6 is increased, thereby improving the screening efficiency of the device for materials. It is easy to use. By designing the structural distribution of the eccentric wheel 32 and the rotating cam 34, when the eccentric wheel 32 applies downward vibration to the entire device, the rotating cam 34 does not apply upward vibration force to the screen plate 6, thereby avoiding vibration cancellation between the two. The protective cover 4 wraps and protects the pulley 38 and the belt 39 to prevent them from contacting the external environment. Through the elastic contraction of the spring 2 8 and the friction or hydraulic resistance of the elastic elements and the bearing elements inside the damper 7, the vibration force on the supporting base 9 is converted into heat energy release, thereby reducing the relative vibration and shaking between the supporting base 9 and the ground.

[0024] It is worth noting that the driving motor 5 disclosed in the above embodiment can adopt Y90S-2, and the control switch 2 is provided with a control button corresponding to the driving motor 5 for controlling its switch.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-efficiency circular vibrating screen, characterized by: It comprises a vibration shell (1) and a high-efficiency vibration mechanism (3); Vibrating shell (1): a sieve plate (6) is slidably connected inside the vibrating shell; A high-efficiency vibration mechanism (3) comprises a rotating shaft (31), an eccentric wheel (32), a rotating shaft (33), a rotating cam (34), a fixed seat (35) and a telescopic column (36). The rotating shaft (31) and the rotating shaft (33) are both rotatably connected between the left and right walls of the vibration shell (1) through bearings. Three evenly distributed eccentric wheels (32) are provided on the outside of the rotating shaft (31). Two symmetrically distributed rotating cams (34) are provided on the outside of the rotating shaft (33). The rotating cams (34) are mounted in conjunction with the sieve plate (6). Two evenly distributed fixed seats (35) are provided on the left and right walls of the vibration shell (1). The upper sides of the fixed seats (35) are fixedly connected to the lower side of the sieve plate (6) through the telescopic end of the telescopic column (36).

2. A high-efficiency circular vibrating screen according to claim 1, characterized in that: It also includes a control switch (2), which is located outside the vibration shell (1), and an input end of the control switch (2) is electrically connected to an external power supply.

3. The high-efficiency circular vibrating screen according to claim 1, characterized in that: The high-efficiency vibration mechanism (3) further includes a spring (37), which is respectively arranged between the fixed seat (35) and the screen plate (6), and the spring (37) is movably connected to the outer end of the adjacent telescopic column (36).

4. The high-efficiency circular vibrating screen according to claim 1, characterized in that: The high-efficiency vibration mechanism (3) further comprises a pulley (38) and a belt (39), wherein the pulley (38) is respectively arranged at the right end of the first rotating shaft (31) and the second rotating shaft (33), and the two pulleys (38) are connected by a belt (39).

5. The high-efficiency circular vibrating screen according to claim 4, characterized in that: A protective cover (4) is provided on the right side of the vibration shell (1), and the pulley (38) and the belt (39) are both located inside the protective cover (4).

6. The high-efficiency circular vibrating screen according to claim 2, characterized in that: A driving motor (5) is provided on the left side of the vibration shell (1); the input end of the driving motor (5) is electrically connected to the output end of the control switch (2); and the output shaft of the driving motor (5) is fixedly connected to the left end of the rotating shaft (31).

7. The high-efficiency circular vibrating screen according to claim 1, characterized in that: The lower end of the vibration shell (1) is fixedly connected to a supporting base frame (9) through four evenly distributed dampers (7) and spring two (8), and the spring two (8) is movably connected to the outer end of the adjacent damper (7).

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