Novel vibrating mesh screen

Abstract

The utility model discloses a novel vibrating mesh screen which comprises a screen box, the screen box is arranged in an inclined mode, a feeding port is fixed to the upper end of the screen box, a discharging port is formed in the lower end of the screen box, a screen mesh is arranged in the screen box in an inclined mode, vibrating shafts are evenly arranged in the screen box, and the two ends of each vibrating shaft are connected with the screen box through fixing bases respectively. A vibrating motor is fixed to one end of the vibrating shaft, two sets of supporting arms are evenly welded to the left side and the right side of the vibrating shaft and are of an upwards-bent wing structure, a supporting plate is welded to the end, away from the end connected with the vibrating shaft, of each supporting arm, and a rubber damping strip for supporting and vibrating the screen is arranged above the supporting plate. And the screening frequency is higher, the screening efficiency is higher, the handling capacity is larger, the tensioning state of the screen can be kept, and vibration and screening of materials are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrating mesh screens, in particular to a novel vibrating mesh screen. Background Art

[0002] The vibrating screen is mainly composed of a screen frame, a vibrating shaft and a drop bin. Its working principle is that the vibrating motor drives the vibrating shaft to rotate and lift the screen, stimulating the material to vibrate. The vibrating screen has a large production capacity, a small vibration load, low noise, good dustproof conditions, and easy maintenance. The vibrating screen is suitable for grading loose compound fertilizers and other loose fine materials. It is currently widely used in screening operations in large domestic ammonium phosphate plants and compound fertilizer plants.

[0003] In patent application number 202311003597.0, a vibrating screen and a combination device thereof are provided, including a screen box, a vibrating shaft assembly and a screen, the vibrating shaft assembly including a vibrating shaft body and a vibration source, and a plurality of vibrating shaft assemblies are suspended and distributed on the screen box along the length direction of the screen box by an elastic suspension device.

[0004] The working principle of the vibrating screen is as follows: the vibrating shaft contacts the vibrating screen through a welded single-sided support arm. When the vibrating shaft rotates, the single-sided support arm lifts the screen to move upward, driving the material to vibrate together to achieve screening. However, the existing vibrating shaft structure is only a single-sided support arm, and the part that the vibrating shaft can support and vibrate is limited. More vibrating shafts need to be arranged on the screen to achieve good vibration, which consumes a lot of energy and has a low screening efficiency. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a new type of vibrating mesh screen. The device is more energy-saving and efficient, has a higher screening frequency, higher screening efficiency, and a larger processing capacity. It can keep the screen in a tensioned state, which is beneficial to the vibration and screening of materials, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of vibrating mesh screen, comprising a screen box, which is arranged obliquely, a feed port is fixed at the upper end of the screen box, a discharge port is arranged at the lower end of the screen box, a screen is obliquely arranged inside the screen box, a vibration shaft is evenly arranged inside the screen box, both ends of the vibration shaft are respectively connected to the screen box through fixed seats, and a vibration motor is fixed to one end of the vibration shaft, two groups of support arms are evenly welded on the left and right sides of the vibration shaft, the two groups of support arms are in an upwardly bent wing structure, a support plate is welded at one end of the support arm away from the end connected to the vibration shaft, and a rubber shock-absorbing strip for supporting the vibration of the screen is arranged above the support plate.

[0007] Furthermore, the fixing seat comprises an annular mounting seat fixedly mounted on the screen box, and an annular rubber ring is arranged between the annular mounting seat and the vibration shaft.

[0008] Furthermore, the upper end of the rubber shock-absorbing strip is a cylindrical structure, and the upper surface of the rubber shock-absorbing strip is in contact with the lower surface of the screen.

[0009] Furthermore, two shock-absorbing springs are fixed on both the front and rear sides of the screen box, and a support leg is fixed on the lower end of each shock-absorbing spring.

[0010] Furthermore, the vibration shaft comprises a seamless pipe, and both ends of the vibration shaft are connected to shaft heads by welding.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the double-sided support arm structure of the new vibrating screen can drive a larger vibration area than the single-sided support arm structure. For the same size, the double-sided support arm has two supporting points, while the single-sided support arm can only support one position, and the double-sided support arm has a wider area for transmitting vibration; it is more energy-saving and efficient, with a higher screening frequency, higher screening efficiency, and a larger processing capacity; the screen is an elastic stainless steel woven screen, and the weight of the screen itself and its elasticity will cause the middle part without vibration shaft support to fall and cannot maintain a tensioned state, which will cause the vibration of the vibration shaft to not be transmitted to the screen, and the double-sided support arm structure can better support the tension of the screen than the single-sided support arm, which is beneficial to the vibration and screening of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is an enlarged structural diagram of the utility model at A;

[0014] Figure 3 This is a schematic diagram of the structure of the vibration shaft of the utility model.

[0015] In the figure: 1 screen box, 2 feed port, 3 discharge port, 4 vibration motor, 5 shock-absorbing spring, 6 legs, 7 screen, 8 vibration shaft, 9 rubber shock-absorbing strip, 10 seamless pipe, 11 shaft head, 12 support arm, 13 support plate, 14 annular mounting seat, 15 annular rubber ring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3The utility model provides a technical solution: a new type of vibrating screen, including a screen box 1, the screen box 1 is inclined, a feed port 2 is fixed on the upper end of the screen box 1, a discharge port 3 is arranged at the lower end of the screen box 1, a screen 7 is inclinedly arranged inside the screen box 1, a vibration shaft 8 is evenly arranged inside the screen box 1, both ends of the vibration shaft 8 are connected to the screen box 1 through a fixed seat, and a vibration motor 4 is fixed to one end of the vibration shaft 8, two groups of support arms 12 are evenly welded on the left and right sides of the vibration shaft 8, the two groups of support arms 12 are in an upwardly curved wing structure, a support plate 13 is welded at one end of the support arm 12 away from the connection with the vibration shaft 8, a rubber shock-absorbing strip 9 for supporting the vibration of the screen 7 is arranged above the support plate 13, the fixed seat includes an annular mounting seat 14 fixedly mounted on the screen box 1, an annular rubber ring 15 is arranged between the annular mounting seat 14 and the vibration shaft 8, the upper end of the rubber shock-absorbing strip 9 is a cylindrical structure, and the upper surface of the rubber shock-absorbing strip 9 is in contact with the lower surface of the screen 7 The surface is fitted, and two shock-absorbing springs 5 ​​are fixed on the front and rear sides of the screen box 1. A support leg 6 is fixed at the lower end of each shock-absorbing spring 5. The vibration shaft 8 includes a seamless tube 10. Both ends of the vibration shaft 8 are connected to the shaft head 11 by welding. The new vibration screen has a double-sided support arm 12 structure that can drive a larger vibration area than the single-sided support arm 12 structure. For the same size, the double-sided support arm 12 has two support points, and the single-sided support arm 12 can only support one position. The double-sided support arm 12 has a wider area for transmitting vibration; it is more energy-saving and efficient, with a higher screening frequency, higher screening efficiency, and a larger processing capacity; the screen 7 is an elastic stainless steel woven screen. The weight of the screen 7 itself and its elasticity will cause the middle part without support from the vibration shaft 8 to fall and cannot maintain a tensioned state, which will cause the vibration of the vibration shaft 8 to not be transmitted to the screen 7, and the double-sided support arm 12 structure can better support the tension of the screen 7 than the single-sided support arm 12, which is beneficial to the vibration and screening of the material.

[0018] During use: since the screen 7 is an elastic stainless steel woven screen, due to its own weight and the pressure of the material on the screen 7, the screen 7 will sag naturally, and the vibration shaft 8 must support the screen 7 to avoid the situation where the vibration cannot be transmitted to the screen 7; for the vibration shaft 8 of the double-sided support arm 12, if the same number of vibration shafts 8 are used for the same screen 7, the structure of the double-sided support arm 12 can better support the screen 7 and the material on the screen 7, and avoid the relaxation of the screen 7 caused by the self-weight of the screen 7 and the material, thereby affecting the vibration screening; if the same number of vibration shafts 8 are used for the same screen 7, in order to give the screen 7 a certain supporting force, the number of vibration shafts 8 used in the double-sided support arm 12 must be less than the number of vibration shafts 8 of the single-sided support arm 12, which not only saves raw materials but also reduces the number of motors used, greatly reducing energy consumption; the screen has a larger vibration area and a higher screening efficiency;

[0019] The vibration area driven by the double-sided support arm 12 structure is larger than that of the single-sided support arm 12 structure. For the same size, the double-sided support arm 12 has two support points, while the single-sided support arm 12 can only support one position. The double-sided support arm 12 has a wider area for transmitting vibration; it is more energy-saving and efficient, with a higher screening frequency, higher screening efficiency, and a larger processing capacity; the screen 7 is an elastic stainless steel woven screen. The weight of the screen 7 itself and its elasticity will cause the middle part without support from the vibration shaft 8 to fall and cannot remain in a tensioned state, which will cause the vibration of the vibration shaft 8 to not be transmitted to the screen 7. The double-sided support arm 12 structure can better support the tension of the screen 7 than the single-sided support arm 12, which is beneficial to the vibration and screening of the material. During vibration, the shock-absorbing spring 5 and the rubber shock-absorbing strip 9 can effectively prevent the vibration generated by the vibration motor 4 from being transmitted to the ground and the support leg 6.

[0020] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A novel vibrating screen, comprising a screen box (1), characterized in that: The screen box (1) is arranged in an inclined manner, a feed port (2) is fixed at the upper end of the screen box (1), a discharge port (3) is arranged at the lower end of the screen box (1), a screen (7) is arranged in an inclined manner inside the screen box (1), a vibration shaft (8) is evenly arranged inside the screen box (1), both ends of the vibration shaft (8) are connected to the screen box (1) through a fixing seat respectively, and a vibration motor (4) is fixed to one end of the vibration shaft (8), two groups of support arms (12) are evenly welded on the left and right sides of the vibration shaft (8), the two groups of support arms (12) are in an upwardly curved wing structure, a support plate (13) is welded at one end of the support arm (12) away from the end connected to the vibration shaft (8), and a rubber shock-absorbing strip (9) for supporting the vibration of the screen (7) is arranged above the support plate (13).

2. A novel vibrating screen according to claim 1, characterized in that: The fixing seat comprises an annular mounting seat (14) fixedly mounted on the screen box (1), and an annular rubber ring (15) is provided between the annular mounting seat (14) and the vibration shaft (8).

3. A novel vibrating screen according to claim 1, characterized in that: The upper end of the rubber shock-absorbing strip (9) is a cylindrical structure, and the upper surface of the rubber shock-absorbing strip (9) is in contact with the lower surface of the screen (7).

4. A novel vibrating screen according to claim 1, characterized in that: Two shock-absorbing springs (5) are fixed to the front and rear sides of the screen box (1), and a support leg (6) is fixed to the lower end of each shock-absorbing spring (5).

5. A novel vibrating screen according to claim 1, characterized in that: The vibration shaft (8) comprises a seamless tube (10), and both ends of the vibration shaft (8) are connected to shaft heads (11) by welding.

Images