Novel vibration source structure of complex frequency sieve core

Abstract

The utility model discloses a novel vibration source structure of a complex frequency sieve core, which comprises brackets fixedly arranged on the left side and the right side of the bottom of the sieve core, two groups of vibration source fixing devices are arranged between the front end and the rear end of each bracket, each vibration source fixing device comprises a cross beam welded between the brackets, each cross beam is of a tubular structure, and the two ends of each cross beam penetrate through the brackets; fixing flanges are welded to the positions, located on the brackets, of the outer wall of the circumference of the cross beam, and the fixing flanges and the brackets are attached to each other and welded. Spring support plates are welded at ports of the cross beams, first threaded mounting holes are formed in the spring support plates, and vibration motors are mounted on the spring support plates through mounting screws and the first threaded mounting holes. The vibration source mounting structure has the advantages that the vibration source mounting structure is simple, the axial transmission distance between vibration sources on the two sides is reduced, the vibration mass is reduced, and the vibration efficiency is improved. The vibration conduction efficiency is improved, the screening effect is good, the screening efficiency is high, and the space occupied area of the complex frequency screen is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of multiple-frequency screens, in particular to a novel vibration source structure of a multiple-frequency screen core. Background Art

[0002] At present, the multi-frequency screen has been widely used in various screening fields. It is environmentally friendly and adopts a non-vibration structure of the screen box. The vibrator of the multi-frequency screen is driven by an external motor, which drives the eccentric block of the vibrator to generate an exciting force for vibration screening. At present, the vibrator of the multi-frequency screen is driven by an external motor. The structure of the vibrator is an eccentric shaft type with a protective cover on the periphery. The motor and the vibrator are connected by a flat belt or a drive shaft. The fixing method of the existing side-vibrating multi-frequency screen vibration source is mainly a spring base and a screen core split structure. The screen core and the vibration source are assembled by means of a clamp spring seat. The motor and motor bracket of the conventional multi-frequency screen are arranged on one side of the main body, occupying a certain space. Patent publication number CN217392951U discloses a new multi-frequency screen structure. The shock-absorbing spring of the multi-frequency screen is connected to the vibrator through a clamp, and the vibrator is connected to the middle casing through the vibrator base. The motor provided on the outside of the screen box drives the vibrator to generate a vibration source to drive the screen box to vibrate. However, there are problems such as complex vibration source installation structure, large space occupation, poor screening effect, and low screening efficiency. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a new vibration source structure for the sieve core of a multiple-frequency screen. The vibration source installation structure is simple, the axial transmission distance between the vibration sources on both sides is reduced, the vibration mass is reduced, the vibration conduction efficiency is improved, the screening effect is good, the screening efficiency is high, and the equipment width is reduced, the space occupied by the multiple-frequency screen is reduced, the connection structure between the vibration source and the sieve core is stable, and the problems in the background technology can be effectively solved.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new vibration source structure of a multi-frequency screen core, comprising brackets fixed on the left and right sides of the bottom of the screen core, two sets of vibration source fixing devices are provided between the front and rear ends of the bracket, the vibration source fixing device comprises beams welded between the brackets, the beams are all tubular structures, and both ends of the beams pass through the brackets; fixing flanges are welded on the circumferential outer wall of the beams at the position of the brackets, and the fixing flanges and the brackets are fitted and welded to each other; spring support plates are welded at the ends of the beams, a threaded mounting hole is provided on the spring support plate, and a vibration motor is installed on the spring support plate through mounting screws and the threaded mounting hole.

[0005] Furthermore, the vibration motors on the same side are arranged opposite to each other, and the output shafts of the vibration motors on the same side are connected to the transmission shaft via a coupling.

[0006] Furthermore, the fixing flanges are all located at the inner ends of the brackets, and the fixing flanges are all bonded to and welded to the inner walls of the corresponding brackets.

[0007] Furthermore, reinforcing ear plates are welded at both ends of the interior of the crossbeam, a connecting sleeve is welded between the reinforcing ear plate and the corresponding spring support plate, and a threaded mounting hole 2 is opened on the reinforcing ear plate at the position corresponding to the threaded mounting hole 1, and the mounting screw of the vibration motor passes through the threaded mounting hole 2.

[0008] Furthermore, the spring support plate is arranged to be inclined, and the inclination angles of the spring support plates at the front and rear ends are the same.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the new vibration source structure of the screen core of the multi-frequency screen, the spring support plates welded at both ends of the crossbeam not only serve as mounting components of the vibration motor, but also serve as connecting components with the spring supports on the base of the multi-frequency screen, reducing the mounting base structure of the vibration motor, not only simplifying the mounting structure of the vibration source, but also reducing the axial transmission distance between the vibration sources on both sides, reducing the vibration mass, improving the vibration conduction efficiency, improving the vibration screening efficiency, and reducing the equipment width, reducing the space occupied by the multi-frequency screen; the multi-frequency screen uses a vibration motor as the vibration source to drive the screen core to vibrate, which is simpler in structure than the existing split vibration source form of the driving motor and the exciter, and is more convenient to disassemble and maintain; the fixing flange and the spring support plate are both welded and fixed to the crossbeam, and the crossbeam is welded and fixed to the screen core through the fixing flange, so that the vibration source fixing device and the screen core are an integrated structure with better structural stability; the vibration motors at the front and rear ends are forced to form forced synchronization through the transmission shaft, the vibration shape of the screen core is more stable, and the vibration screening effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the utility model;

[0011] Figure 2 This is a side sectional view of the utility model;

[0012] Figure 3 for Figure 2 Partial enlarged view;

[0013] Figure 4 This is a schematic diagram of the connection structure between the vibration motors at both ends of the utility model;

[0014] Figure 5 It is a side view of the vibration source fixing device of the present invention.

[0015] In the figure: 1. bracket; 2. screen core; 3. vibration source fixing device; 31. crossbeam; 32. fixing flange; 33. spring support plate; 34. reinforcement ear plate; 35. connecting sleeve; 4. vibration motor; 5. transmission shaft. DETAILED DESCRIPTION

[0016] 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. Example

[0017] See also Figure 1-5 The utility model provides a technical solution: a new vibration source structure of a multi-frequency screen core, comprising a bracket 1 fixed on the left and right sides of the bottom of the screen core 2, two sets of vibration source fixing devices 3 are provided between the front and rear ends of the bracket 1, the vibration source fixing device 3 comprises a crossbeam 31 welded between the brackets 1, the crossbeams 31 are all tubular structures, and both ends of the crossbeam 31 pass through the bracket 1; a fixing flange 32 is welded on the circumferential outer wall of the crossbeam 31 at the position of the bracket 1, and the fixing flange 32 and the bracket 1 are fitted and welded to each other; a spring support plate 33 is welded at the end of the crossbeam 31, a threaded mounting hole 1 is opened on the spring support plate 33, and a vibration motor 4 is installed on the spring support plate 33 through mounting screws and a threaded mounting hole 1.

[0018] Furthermore, the vibration motors 4 on the same side are arranged opposite to each other, and the output shafts of the vibration motors 4 on the same side are connected to the transmission shaft 5 via a coupling.

[0019] Furthermore, the fixing flanges 32 are all located at the inner end of the bracket 1 , and the fixing flanges 32 are all attached to and welded to the inner wall of the corresponding bracket 1 .

[0020] Furthermore, reinforcing ear plates 34 are welded at both ends of the interior of the crossbeam 31, and a connecting sleeve 35 is welded between the reinforcing ear plate 34 and the corresponding spring support plate 33, and a threaded mounting hole 2 is opened on the reinforcing ear plate 34 at the position corresponding to the threaded mounting hole 1, and the mounting screw of the vibration motor 4 passes through the threaded mounting hole 2; the reinforcing ear plate 34 not only increases the supporting strength of the spring support plate 33, but also makes the vibration motor 4 more securely fixed.

[0021] Furthermore, the spring support plate 33 is tilted, and the tilt angles of the spring support plates 33 at the front and rear ends are the same.

[0022] During use: the spring support plates 33 welded at both ends of the crossbeam 31 are connected to the spring supports on the base of the multi-frequency screen, and the vibration motor 4 is detachably fixedly connected to the spring support plates 33 and the reinforcement ear plates 34 at both ends of the crossbeam 31 through connecting screws. When the multi-frequency screen is running, the vibration motors 4 at both ends of the crossbeam 31 drive the bracket 1 and the screen core 2 to vibrate, and the transmission shaft 5 forces the vibration motors 4 at the front and rear ends to form forced synchronization, so that the vibration shape of the screen core 2 is more stable and the vibration screening effect is better.

[0023] The new vibration source structure of the multi-frequency screen core disclosed in this embodiment, the spring support plates 33 welded at both ends of the crossbeam 31 not only serve as mounting components of the vibration motor 4, but also serve as connecting components with the spring support on the base of the multi-frequency screen, reducing the mounting base structure of the vibration motor 4, not only simplifying the mounting structure of the vibration source, but also reducing the axial transmission distance between the vibration sources on both sides, reducing the vibration mass, improving the vibration conduction efficiency, improving the vibration screening efficiency, and reducing the equipment width, reducing the space occupied by the multi-frequency screen; the multi-frequency screen uses the vibration motor 4 as the vibration source to drive the screen core 2 to vibrate, which is simpler in structure than the existing split vibration source form of the drive motor and the exciter, and is more convenient for disassembly and maintenance; the fixing flange 32 and the spring support plate 33 are both welded and fixed to the crossbeam 31, and the crossbeam 31 is welded and fixed to the screen core 2 through the fixing flange 32, so that the vibration source fixing device 3 and the screen core 2 are an integrated structure with better structural stability; the vibration motors 4 at the front and rear ends are forced to form forced synchronization through the transmission shaft 5, the vibration shape of the screen core 2 is more stable, and the vibration screening effect is better.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel vibration source structure for a multi-frequency screen core, comprising brackets fixed on the left and right sides of the bottom of the screen core, and two sets of vibration source fixing devices provided between the front and rear ends of the brackets, characterized in that: The vibration source fixing device includes a crossbeam welded between the brackets, the crossbeams are all tubular structures, and both ends of the crossbeams pass through the brackets; fixing flanges are welded on the circumferential outer wall of the crossbeam at the position of the bracket, and the fixing flanges and the brackets are fitted and welded to each other; spring support plates are welded at the ends of the crossbeams, and a threaded mounting hole is opened on the spring support plate, and a vibration motor is installed on the spring support plate through mounting screws and threaded mounting hole one.

2. The novel vibration source structure of a multi-frequency screen core according to claim 1 is characterized in that: The vibration motors on the same side are arranged opposite to each other, and the output shafts of the vibration motors on the same side are connected with a transmission shaft via a coupling.

3. The novel vibration source structure of a multi-frequency screen core according to claim 1 is characterized in that: The fixing flanges are all located at the inner side ends of the brackets, and the fixing flanges are all attached to and welded to the inner walls of the corresponding brackets.

4. The novel vibration source structure of a multi-frequency screen core according to claim 1 is characterized in that: Reinforcement ear plates are welded at both ends of the interior of the crossbeam, a connecting sleeve is welded between the reinforcement ear plate and the corresponding spring support plate, and a threaded mounting hole 2 is opened on the reinforcement ear plate at the position corresponding to the threaded mounting hole 1, and the mounting screw of the vibration motor passes through the threaded mounting hole 2.

5. The novel vibration source structure of a multi-frequency screen core according to claim 1 is characterized in that: The spring support plate is arranged to be inclined, and the inclination angles of the spring support plates at the front and rear ends are the same.

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