Vibrating screen and screening production line

Abstract

The utility model belongs to the technical field of vibration screening, and discloses a vibration screen and a screening production line. The vibrating screen comprises a screen box, a second universal coupling, two driving mechanisms and two transmission mechanisms. Each driving mechanism comprises a first rotating shaft and a second rotating shaft which are in transmission connection; and a transmission mechanism is arranged corresponding to each driving mechanism. The transmission mechanism comprises a transmission shaft, a first universal coupling and a vibration exciter, and the transmission shaft is in transmission connection with the vibration exciter and is in transmission connection with the corresponding first rotating shaft through the first universal coupling; the second rotating shafts of the two driving mechanisms are in transmission connection through a second universal coupling so as to achieve synchronous driving of the two driving mechanisms, and through transmission of the first rotating shafts, the first universal coupling and the transmission shaft, the vibration exciter installed on the screen box can be driven to vibrate so as to screen materials in the screen box. The vibrating screen adopts rigid synchronous transmission, synchronous transmission of the two driving mechanisms is achieved, stable operation of the vibrating screen is guaranteed, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration screening, in particular to a vibration screen and a screening production line. Background Art

[0002] Vibrating screens work by using the reciprocating vibrations generated by the vibration of the vibrator. By driving the screen body to vibrate, the material on the screen passes through a single or multi-layer screen with uniform holes for multiple times to achieve the purpose of screening. It has been widely used in industries such as metallurgy, coal, mining and building materials. In order to meet the processing needs of a large amount of materials, the screen surface of the vibrating screen also needs to be expanded accordingly.

[0003] At present, a part of the vibrating screens used in the prior art adopts a single vibrator, and the vibrator is installed at the center of gravity of the vibrating screen. The amplitude of the center of gravity is obvious, but the amplitude at the head and tail is weak, so the screening effect is poor, and the load at the center of gravity is more concentrated, which reduces the service life of the vibrating screen; the other part adopts a double vibrator, and the center of gravity of the vibrating screen is located between the two vibrators, and a synchronous belt is set to achieve synchronous vibration of the two vibrators. However, after long-term use, the synchronous belt is worn, and the synchronous vibration of the two vibrators cannot be guaranteed, which affects the vibration effect and screening efficiency. Utility Model Content

[0004] The utility model aims to provide a vibrating screen and a screening production line, which can ensure the synchronous transmission of multiple driving parts, ensure the stable operation of the vibrating screen, and improve the screening efficiency.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] In one aspect, a vibrating screen is provided, comprising:

[0007] Screen box;

[0008] There are two drive mechanisms, each of which includes a first rotating shaft and a second rotating shaft that are in transmission connection;

[0009] A transmission mechanism, wherein each of the driving mechanisms is provided with a transmission mechanism, and the transmission mechanism comprises a transmission shaft, a first universal coupling and a vibration exciter; the transmission shaft is in transmission connection with the vibration exciter, and is in transmission connection with the first rotating shaft corresponding to the driving mechanism through the first universal coupling; the vibration exciter is installed on the screen box;

[0010] A second universal coupling, the second rotating shafts of the two driving mechanisms are transmission connected through the second universal coupling.

[0011] As an optional solution for the vibrating screen, the driving mechanism further includes a rotating driving member, a first bevel gear and a second bevel gear;

[0012] The output end of the rotary drive member is transmission-connected to an end of the first rotating shaft away from the transmission shaft, the first bevel gear is coaxially arranged on the first rotating shaft, the second bevel gear is coaxially arranged on the second rotating shaft, and the first bevel gear is meshed with the second bevel gear.

[0013] As an optional solution of the vibrating screen, the driving mechanism further includes a belt transmission assembly, the belt transmission assembly includes a driving pulley, a driven pulley and a transmission belt, the driving pulley is drivingly connected to the output end of the rotating drive member, the driven pulley is coaxially arranged on the first rotating shaft, and the transmission belt is sleeved on the outer sides of the driving pulley and the driven pulley;

[0014] The diameter of the driving pulley is smaller than the diameter of the driven pulley.

[0015] As an optional solution for the vibrating screen, each of the transmission mechanisms includes two vibrators, and the two vibrators are arranged on two opposite outer sides of the screen box.

[0016] As an optional solution for the vibrating screen, the driving mechanism is located on one side of the screen box along the horizontal direction.

[0017] As an optional solution for the vibrating screen, it also includes a mounting base, a plurality of buffer and shock absorbing components are arranged between the mounting base and the screen box, and the two driving mechanisms are both arranged on the mounting base.

[0018] As an optional solution for the vibrating screen, the buffer shock absorbing assembly includes a first connecting part, a second connecting part and a plurality of elastic parts, the first connecting part is fixed to the screen box, the second connecting part is fixed to the mounting base, and the two ends of the elastic part are respectively connected to the first connecting part and the second connecting part.

[0019] As an optional solution for the vibrating screen, it also includes a mounting base, the screen box is tilted, a feed port and a first discharge port are respectively provided on opposite sides of the screen box, the feed port is higher than the first discharge port, a second discharge port is provided on the bottom side of the screen box, and a discharge channel is defined between the screen box and the mounting base.

[0020] As an optional solution for the vibrating screen, a first protective shell is provided on the first universal joint; and / or a second protective shell is provided on the second universal joint.

[0021] On the other hand, a screening production line is provided, comprising a feeding conveying device, a discharging conveying device and the above-mentioned vibrating screen, wherein the feeding conveying device and the discharging conveying device are respectively arranged on both sides of the vibrating screen.

[0022] Beneficial effects of the utility model:

[0023] The utility model provides a vibrating screen and screening production line, the vibrating screen includes a screen box, a driving mechanism, a transmission mechanism and a second universal coupling. Among them, there are two driving mechanisms, each of which includes a first rotating shaft and a second rotating shaft that are transmission-connected; a transmission mechanism is provided for each driving mechanism. The transmission mechanism includes a transmission shaft, a first universal coupling and an exciter, the transmission shaft is transmission-connected to the exciter, and is transmission-connected to the corresponding first rotating shaft through the first universal coupling; the second rotating shafts of the two driving mechanisms are transmission-connected through the second universal coupling to realize synchronous driving of the two driving mechanisms, and through the transmission of the first rotating shaft, the first universal coupling and the transmission shaft, the exciter installed on the screen box can be driven to vibrate, thereby driving the screen box to vibrate and completing the screening of the material in the screen box. The vibrating screen adopts a rigid synchronous transmission, which can ensure the synchronous transmission of the two driving mechanisms, ensure the stability of the vibrating screen operation, and improve the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the vibrating screen provided by the specific implementation mode of the utility model;

[0025] Figure 2 It is a partial structural schematic diagram of the driving mechanism provided by the specific implementation mode of the utility model;

[0026] Figure 3 It is a top view of the vibrating screen provided by the specific implementation mode of the utility model;

[0027] Figure 4 yes Figure 3 AA section view in.

[0028] In the figure:

[0029] 1. Screen box; 11. Feed inlet; 12. First discharge outlet; 13. Second discharge outlet;

[0030] 2. Driving mechanism; 21. First rotating shaft; 22. Second rotating shaft; 23. Rotating driving member; 24. First bevel gear; 25. Second bevel gear;

[0031] 26. belt drive assembly; 261. driving pulley; 262. driven pulley; 263. transmission belt;

[0032] 3. Transmission mechanism; 31. Transmission shaft; 32. First universal joint; 33. Vibrator;

[0033] 4. Second universal coupling;

[0034] 5. Install the base;

[0035] 6. Buffer and shock absorbing assembly; 61. First connecting portion; 62. Second connecting portion; 63. Elastic member. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0041] like Figure 1As shown, this embodiment provides a vibrating screen, including a screen box 1, a driving mechanism 2, a transmission mechanism 3 and a second universal coupling 4. Among them, there are two driving mechanisms 2, each of which includes a first rotating shaft 21 and a second rotating shaft 22 that are connected in a transmission manner; and a transmission mechanism 3 is provided for each driving mechanism 2. The transmission mechanism 3 includes a transmission shaft 31, a first universal coupling 32 and an exciter 33, the transmission shaft 31 is connected in a transmission manner to the exciter 33, and is connected in a transmission manner to the corresponding first rotating shaft 21 through the first universal coupling 32; the second rotating shafts 22 of the two driving mechanisms 2 are connected in a transmission manner through the second universal coupling 4 to realize the synchronous driving of the two driving mechanisms 2. At the same time, through the transmission of the first rotating shaft 21, the first universal coupling 32 and the transmission shaft 31, the exciter 33 installed on the screen box 1 can be driven to vibrate, thereby driving the screen box 1 to vibrate and complete the screening of the material in the screen box 1. The vibrating screen adopts a rigid synchronous transmission, which can ensure the synchronous transmission of the two driving mechanisms 2, ensure the stability of the operation of the vibrating screen, and improve the screening efficiency.

[0042] In addition, a second universal joint 4 is connected to the second shafts 22 of the two drive mechanisms 2, and a first universal joint 32 is connected to the first shaft 21 for transmission, allowing a certain deviation in the installation positions of the two drive mechanisms 2, thereby simplifying the installation accuracy and procedures and improving work efficiency.

[0043] Optionally, refer to Figure 1 and Figure 2 The driving mechanism 2 also includes a rotating driving member 23, a first bevel gear 24 and a second bevel gear 25. The output end of the rotating driving member 23 is connected to the end of the first rotating shaft 21 away from the transmission shaft 31, the first bevel gear 24 is coaxially arranged on the first rotating shaft 21, and the second bevel gear 25 is coaxially arranged on the second rotating shaft 22. The first bevel gear 24 and the second bevel gear 25 are meshed with each other to achieve the change of the transmission direction, and at the same time ensure the synchronous transmission of the two transmission mechanisms 3 to improve the screening effect of the vibrating screen. That is, the first rotating shaft 21 and the second rotating shaft 22 are perpendicular to each other, and the two realize transmission through a pair of meshing bevel gears.

[0044] Exemplarily, the rotary drive member 23 is a motor commonly used in the art. The first bevel gear 24 and the first rotating shaft 21 can be integrally cast or integrally formed by other processing methods, or the first bevel gear 24 can be sleeved on the first rotating shaft 21 and connected to the first rotating shaft 21 by a key to limit the circumference; the second bevel gear 25 and the second rotating shaft 22 can also be integrally cast or integrally formed by other processing methods, or the second bevel gear 25 can be sleeved on the second rotating shaft 22 and connected to the second rotating shaft 22 by a key to limit the circumference.

[0045] Further, continue to refer to Figure 1The driving mechanism 2 also includes a belt transmission assembly 26, which includes a driving pulley 261, a driven pulley 262 and a transmission belt 263. The driving pulley 261 is connected to the output end of the rotating drive member 23, the driven pulley 262 is coaxially arranged on the first rotating shaft 21, and the transmission belt 263 is sleeved on the outer sides of the driving pulley 261 and the driven pulley 262. The driving pulley 261 rotates synchronously with the output end of the rotating drive member 23, and drives the driven pulley 262 to rotate through the transmission belt 263, and the driven pulley 262 then drives the first rotating shaft 21 to rotate, thereby realizing the transmission connection between the rotating drive member 23 and the first rotating shaft 21. In addition, the diameter of the driving pulley 261 is smaller than that of the driven pulley 262, so as to reduce the rotation speed of the first rotating shaft 21 and increase the torque of the first rotating shaft 21, thereby transmitting a sufficiently large torque to the exciter 33.

[0046] Specifically, in this embodiment, the conveyor belt is a V-belt, and corresponding grooves are provided on the driving pulley 261 and the driven pulley 262. The V-belt rubs against the two walls of the groove to achieve transmission, which has the advantages of small slippage, stable transmission ratio and smooth operation.

[0047] Optionally, refer to Figure 3 Each transmission mechanism 3 includes two vibrators 33, and the two vibrators 33 are arranged on two opposite outer sides of the screen box 1, so that the vibration force of the screen box 1 is more uniform, thereby improving its screening effect and screening efficiency.

[0048] Optionally, continue to refer to Figure 3 The driving mechanism 2 is located on one side of the screen box 1 along the horizontal direction. The driving mechanism 2 is arranged outside the screen box 1, which can facilitate the subsequent maintenance of the driving mechanism 2, thereby improving the working efficiency.

[0049] Alternatively, if Figure 1 As shown, the vibrating screen further comprises a mounting base 5 , a plurality of buffer and shock absorbing components 6 are arranged between the mounting base 5 and the screen box 1 , and the two driving mechanisms 2 are both arranged on the mounting base 5 .

[0050] Specifically, in this embodiment, four buffer shock-absorbing components 6 are arranged between the mounting base 5 and the screen box 1. The four buffer shock-absorbing components 6 are arranged on both sides of the screen box 1, and have the function of buffering and shock-absorbing, thereby avoiding damage to the screen box 1 caused by excessive exciting force and preventing splashing of materials in the screen box 1.

[0051] Further, refer to Figure 1The buffer shock absorbing assembly 6 includes a first connecting portion 61, a second connecting portion 62 and a plurality of elastic members 63. The first connecting portion 61 is fixedly arranged on the screen box 1, the second connecting portion 62 is fixedly arranged on the mounting base 5, and the two ends of the elastic member 63 are respectively connected to the first connecting portion 61 and the second connecting portion 62. For example, in this embodiment, the elastic member 63 is a spring. In other embodiments, the elastic member 63 may also be elastic rubber or the like.

[0052] Optionally, refer to Figure 1 The vibrating screen also includes a mounting base 5. The screen box 1 is provided with a feed inlet 11 and a first discharge outlet 12 on opposite sides thereof. Figure 4 The second discharge port 13 is arranged at the bottom of the screen box 1, and the position height of the feed port 11 is higher than the position height of the first discharge port 12. In addition, the screen box 1 is arranged at an angle to facilitate the discharge of materials under the action of dead weight. The materials entering the screen box 1 from the feed port 11 are screened under the vibration of the screen box 1, and the screened materials are discharged from the first discharge port 12 and the second discharge port 13. In addition, a discharge channel is defined between the screen box 1 and the mounting base 5 to facilitate the discharge of materials from the second discharge port 13.

[0053] Specifically, in this embodiment, two layers of screens are provided in the screen box 1, and correspondingly, two first discharge ports 12 are provided on one side of the screen box 1. The material screened by the upper screen is discharged from the first discharge port 12 on the upper side; the material screened by the lower screen is discharged from the first discharge port 12 on the lower side; and the remaining material is discharged from the second discharge port 13 on the bottom side of the screen box 1. In addition, in this embodiment, each layer of screen is composed of multiple small screens, so as to facilitate subsequent maintenance and replacement.

[0054] Optionally, a first protective shell is provided on the first universal coupling 32 ; and / or a second protective shell is provided on the second universal coupling 4 , so as to protect the first universal coupling 32 and the second universal coupling 4 .

[0055] Specifically, in this embodiment, the second protective shell is an arc-shaped shell, which is arranged on the mounting base 5 and covers the outside of the second universal joint 4 .

[0056] This embodiment also provides a screening production line, including a feeding conveying device, a discharging conveying device and the above-mentioned vibrating screen, wherein the feeding conveying device and the discharging conveying device are respectively arranged on both sides of the screen box 1. The feeding conveying device is located on one side of the feeding port 11, and the discharging conveying device is located on one side of the second discharging port 13. The feeding conveying device feeds the material to be screened into the feeding port 11 of the screen box 1, and the discharging conveying device transports the material discharged from the first discharging port 12 and the second discharging port 13 to the next station.

[0057] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A vibrating screen, characterized in that: include: Screen box (1); Two drive mechanisms (2) are provided, each of the drive mechanisms (2) comprising a first rotating shaft (21) and a second rotating shaft (22) which are transmission-connected; A transmission mechanism (3), wherein each of the driving mechanisms (2) is provided with a transmission mechanism (3), the transmission mechanism (3) comprising a transmission shaft (31), a first universal coupling (32) and a vibration exciter (33); the transmission shaft (31) is transmission-connected to the vibration exciter (33), and is transmission-connected to the first rotating shaft (21) corresponding to the driving mechanism (2) through the first universal coupling (32); the vibration exciter (33) is mounted on the screen box (1); A second universal joint (4), the second rotating shafts (22) of the two driving mechanisms (2) are connected in transmission via the second universal joint (4).

2. The vibrating screen according to claim 1, characterized in that: The driving mechanism (2) further comprises a rotating driving member (23), a first bevel gear (24) and a second bevel gear (25); The output end of the rotary drive member (23) is transmission-connected to an end of the first rotating shaft (21) away from the transmission shaft (31); the first bevel gear (24) is coaxially arranged on the first rotating shaft (21); the second bevel gear (25) is coaxially arranged on the second rotating shaft (22); and the first bevel gear (24) is meshed with the second bevel gear (25).

3. The vibrating screen according to claim 2, characterized in that: The driving mechanism (2) further comprises a belt transmission assembly (26), wherein the belt transmission assembly (26) comprises a driving pulley (261), a driven pulley (262) and a transmission belt (263), wherein the driving pulley (261) is drivingly connected to the output end of the rotating driving member (23), the driven pulley (262) is coaxially arranged on the first rotating shaft (21), and the transmission belt (263) is sleeved on the outer sides of the driving pulley (261) and the driven pulley (262); The diameter of the driving pulley (261) is smaller than the diameter of the driven pulley (262).

4. The vibrating screen according to claim 1, characterized in that: Each of the transmission mechanisms (3) comprises two vibrators (33), and the two vibrators (33) are arranged on two opposite outer sides of the screen box (1).

5. The vibrating screen according to claim 1, characterized in that: The driving mechanism (2) is located on one side of the screen box (1) along the horizontal direction.

6. The vibrating screen according to claim 1, characterized in that: It also comprises a mounting base (5), a plurality of buffer shock absorbing components (6) are arranged between the mounting base (5) and the screen box (1), and the two driving mechanisms (2) are both arranged on the mounting base (5).

7. The vibrating screen according to claim 6, characterized in that: The buffer shock absorbing assembly (6) comprises a first connecting portion (61), a second connecting portion (62) and a plurality of elastic members (63); the first connecting portion (61) is fixedly arranged on the screen box (1); the second connecting portion (62) is fixedly arranged on the mounting base (5); and two ends of the elastic member (63) are respectively connected to the first connecting portion (61) and the second connecting portion (62).

8. The vibrating screen according to claim 1, characterized in that: The invention also comprises a mounting base (5), the screen box (1) is arranged at an angle, a feed port (11) and a first discharge port (12) are respectively arranged on opposite sides of the screen box (1), the feed port (11) is higher than the first discharge port (12), a second discharge port (13) is arranged on the bottom side of the screen box (1), and a discharge channel is defined between the screen box (1) and the mounting base (5).

9. The vibrating screen according to any one of claims 1 to 8, characterized in that: The first universal joint (32) is covered with a first protective shell; and / or the second universal joint (4) is covered with a second protective shell.

10. A screening production line, characterized in that: It comprises a feeding conveying device, a discharging conveying device and a vibrating screen as claimed in any one of claims 1 to 9, wherein the feeding conveying device and the discharging conveying device are arranged on both sides of the vibrating screen.

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