Screen mesh tensioning device of vibrating mesh screen

Abstract

The utility model discloses a vibrating screen mesh tensioning device which comprises a woven screen mesh, tensioning hooks are fixed to the two ends of the woven screen mesh, the tensioning hooks and the woven screen mesh are tightly connected through extrusion of a press machine, and the lower sides of the two tensioning hooks are each provided with a bent supporting plate. Vertical lug plates are evenly fixed to the upper surface of each bending supporting plate, each vertical lug plate is provided with a tensioning force adjusting rod, one end of each tensioning force adjusting rod is fixedly provided with a second tensioning hook, each second tensioning hook is connected with the corresponding tensioning hook in a hooked mode, and an adjusting piece is arranged between one end of each tensioning force adjusting rod and the corresponding vertical lug plate and connected with the corresponding tensioning hook in a hooked mode. When screening work is carried out, the elastic element in the tensioning device can provide buffering, the situation that the screen is damaged due to excessive tensioning is avoided, deformation of screen holes is avoided due to tensioning from the periphery of the screen, the screening effect is better, the service life of the screen is prolonged, the screening efficiency is improved, and the shutdown maintenance time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vibrating screen, concretely to a vibrating screen screen tensioner. BACKGROUND

[0002] The vibrating screen is a large mechanical equipment that uses the exciting force generated by the vibration motor to drive the screen to vibrate, thereby realizing the screening and grading of materials. At present, the vibrating screen is widely used in large ammonium phosphate plants and chemical and fertilizer industries due to its large screening capacity, small vibration load, strong environmental protection sealing, and convenient and fast maintenance. The screen is an important part that bears the screening function, and its reliability is an important factor to ensure the stable and continuous operation of the screen. The tensioning state of the screen directly affects the service life of the screen and the screening efficiency of the screen.

[0003] The screen of the vibrating screen is mostly woven screen made of various combined materials, which is sensitive to the size of the tensioning force. At present, there is no mechanical structure for optimizing the tensioning of the screen of the vibrating screen. Patent No. CN217700130U discloses a screen tensioner for a vibrating screen, which adjusts the tensioning force of the screen by combining the tensioning mechanism with the sliding drive assembly. However, the screen of the vibrating screen needs to withstand cyclic and reciprocating high-frequency impacts, and the vibration intensity is large. The sliding drive assembly is prone to fatigue failure after high-frequency vibration, which reduces the screening efficiency and increases the screening cost.

[0004] Patent No. CN222112581U discloses a vibrating screen screen tensioner, which adjusts the tensioning force of the screen by using a ratchet and pawl structure. However, the internal space of the vibrating screen is relatively compact, and the ratchet and pawl structure is not convenient for adjusting the size of the screen tensioning force, and is not convenient for installing, disassembling and replacing the screen. In addition, the screen of the vibrating screen is mostly inclined, and the additional installation of the handle has a height difference with the ground, which is not convenient for actual operation. Moreover, the existing tensioning method is to tighten from both ends, which can make the circular screen holes become an elongated structure when tightening, resulting in poor screening effect. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a vibrating screen screen tensioner, which can quickly tension and relax the screen, is simple and fast to operate, reduces labor intensity, avoids damage to the screen due to excessive tensioning, and avoids deformation of the screen holes by tensioning from all around the screen, which improves the screening effect, prolongs the service life of the screen, improves the screening efficiency, reduces downtime maintenance time, and effectively solves the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of vibrating screen screen tensioning device, woven screen is fixed with tension hook at both ends of the woven screen, tension hook is connected closely by press extrusion between tension hook and woven screen, the lower side of two tension hooks is respectively provided with one bending support plate, the upper surface of each bending support plate is uniformly fixed with vertical lug, each vertical lug is provided with tension force adjusting rod, one end of tension force adjusting rod is fixed with tension hook two, tension hook two is connected with tension hook, and adjusting member is arranged between the one end of tension force adjusting rod and vertical lug.

[0007] Further, the tension hook is S-shaped structure, and the tension hook two is C-shaped structure, and the tension hook two corresponds to the tension hook.

[0008] Further, the adjusting member includes locking nut and butterfly spring, the locking nut is arranged at the end of the tension force adjusting rod away from the connection with the tension hook two, and the butterfly spring is uniformly arranged between the locking nut and the vertical lug.

[0009] Further, the number of the locking nuts is not less than two, the locking nuts are connected with the tension force adjusting rod by threaded connection, and the locking nuts are hexagon nuts.

[0010] Further, the front and rear tensioning members include two fixed frames fixed on both sides of the woven screen, an inclined material collecting plate is arranged on the lower side of each fixed frame, the two inclined material collecting plates are in the shape of a trumpet with an upward opening, a sliding rod is arranged on the lower end of one side of one inclined material collecting plate, a sliding hole corresponding to the sliding rod is arranged on the other inclined material collecting plate, an adjusting screw rod is rotatably arranged on one inclined material collecting plate, and the adjusting screw rod is connected with the other inclined material collecting plate by threaded connection, the distance between the two inclined material collecting plates can be adjusted by rotating the adjusting screw rod, the distance between the two fixed frames can be adjusted by the inclined material collecting plates, the longitudinal tension of the woven screen can be adjusted by the fixed frames, and the situation that the screen hole becomes small when the woven screen is tensioned on one side is avoided.

[0011] Compared with the prior art, the utility model has the advantages that: the vibrating screen screen tensioning device has simple hook connection structure of tension hook, saves raw materials in design, reduces production cost, is suitable for various vibrating screen separation equipment through structural optimization design of vibrating screen, and has the design structure of tension hook hook connection, can realize rapid tensioning and relaxation of screen, is simple and fast to operate, reduces labor intensity, the elastic element in the tensioning device can provide buffer when screening, avoids damage of screen due to excessive tension, avoids deformation of screen hole through tensioning from four sides of screen, makes screening effect better, prolongs service life of screen, improves screening efficiency, and reduces downtime maintenance time. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic view of the utility model;

[0013] Figure 2 is a structural schematic view of the installation structure of the screen and the tension hook of the utility model;

[0014] Figure 3 is a structural schematic view of the utility model Figure 2 is an enlarged structural schematic view of A of the utility model;

[0015] Figure 4 is a structural schematic view of the installation structure of the second tension hook and the tension force adjusting rod of the utility model;

[0016] Figure 5 is a structural schematic view of B of the utility model Figure 1 is an enlarged structural schematic view of B of the utility model;

[0017] Figure 6 is a structural schematic view of the front and rear tensioning members of the utility model.

[0018] In the drawing: 1 woven screen, 2 tension hook, 3 second tension hook, 4 tension force adjusting rod, 5 bent support plate, 6 locking nut, 7 butterfly spring, 8 front and rear tensioning members, 81 adjusting screw rod, 82 sliding rod, 83 inclined material gathering plate, 84 fixed frame. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figures 1-5The utility model provides a technical scheme: a kind of vibrating screen screen tensioner, woven screen 1 is fixed with tension hook 2 in both ends of woven screen 1, tension hook 2 is connected closely with woven screen 1 by press, and woven screen 1 can be adjusted at will according to the size required by vibrating screen by tension hook 2, without extra special manufacturing, reduce processing procedure, reduce production cost, the downside of two tension hooks 2 is respectively provided with one bending support plate 5, the upper surface of each bending support plate 5 is uniformly fixed with vertical ear plate, and each vertical ear plate is provided with tension force adjusting rod 4, one end of tension force adjusting rod 4 is fixed with tension hook two 3, and tension hook two 3 is connected with tension hook 2, and adjusting member is arranged between the one end of tension force adjusting rod 4 and vertical ear plate, and tension hook 2 is S-shaped structure, and tension hook two 3 is C-shaped structure, and tension hook two 3 corresponds to tension hook 2, adjusting member includes locking nut 6 and butterfly spring 7, locking nut 6 is arranged in the one end of tension force adjusting rod 4 away from tension hook two 3, and butterfly spring 7 is uniformly arranged between locking nut 6 and vertical ear plate, and the number of locking nut 6 is not less than two, locking nut 6 is connected with tension force adjusting rod 4 by threaded connection, and locking nut 6 is hexagon nut, and the structure of the hook connection of tension hook 2 and tension hook two 3 is simple, saves raw material in design, reduces production cost, and the structure is optimized for vibrating screen, and it is suitable for a variety of vibrating screen equipment;The design structure of the hook connection of tension hook 2 and tension hook two 3 can realize the quick tensioning and relaxation of screen, and the operation is simple and fast, and the labor intensity is reduced;Front and rear tensioning parts 8 include two fixed side frames 84 fixed on both sides of woven screen 1, and the lower end of each fixed side frame 84 is provided with inclined material collecting plate 83, and the two inclined material collecting plates 83 are in the form of horn-shaped structure with upward opening, and the lower end of one side of one inclined material collecting plate 83 is provided with sliding rod 82, and the other inclined material collecting plate 83 is provided with sliding hole corresponding to sliding rod 82, and the other inclined material collecting plate 83 is provided with rotationally connected adjusting screw 81, and adjusting screw 81 is connected with the other inclined material collecting plate 83 by threaded connection, and the distance between the two inclined material collecting plates 83 can be adjusted by the rotation of adjusting screw 81, the distance between the two fixed side frames 84 is adjusted by inclined material collecting plate 83, the longitudinal tension of woven screen 1 can be adjusted by fixed side frame 84, the situation that screen hole becomes small when woven screen 1 is tensioned on one side is avoided, the elastic element in tensioning device can provide buffer when screening work is carried out, the screen is prevented from being damaged due to excessive tensioning, the service life of screen is prolonged, the screening efficiency is improved, and the downtime maintenance time is reduced.

[0021] In use: the woven screen 1 is connected by the tensioning hooks 2 and the tensioning hooks two 3 on the bent support plate 5, in this way, the woven screen 1 is installed, the design saves raw materials, reduces the production cost, at the same time, the structure of the vibrating screen is optimized, and it is suitable for various vibrating screening equipment, when the woven screen 1 is tensioned and adjusted, the number or type of the butterfly spring 7 can be changed to adjust the tensioning force, the locking nut 6 can keep the adjusted tensioning force, the butterfly spring 7 in the tensioning device can provide buffering when the screening work is carried out, the woven screen is prevented from being damaged due to excessive tensioning, the service life of the woven screen is prolonged, the screening efficiency is improved, the downtime maintenance time is reduced, the distance between the two inclined material accumulation plates 83 can be adjusted by rotating the adjusting screw 81, the distance between the two fixed frames 84 is adjusted by the inclined material accumulation plates 83, the longitudinal tensioning degree of the woven screen 1 is adjusted by the fixed frame 84, and the situation that the screen hole is small when the woven screen 1 is tensioned on one side is avoided.

[0022] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model.

Claims

1. A vibrating screen tensioning device, comprising a woven screen (1), characterized in that: Two ends of the woven screen (1) are fixed with tension hooks (2), the tension hooks (2) and the woven screen (1) are connected closely through a pressing machine, the lower sides of the two tension hooks (2) are respectively provided with a bent supporting plate (5), the upper surfaces of each bent supporting plate (5) are uniformly fixed with vertical ear plates, each vertical ear plate is provided with a tension force adjusting rod (4), one end of the tension force adjusting rod (4) is fixed with a second tension hook (3), the second tension hook (3) is connected with the tension hook (2), an adjusting piece is arranged between one end of the tension force adjusting rod (4) and the vertical ear plate, front and rear tension pieces (8) are arranged between the two sides of the woven screen (1).

2. A screen tensioning device for a vibrating screen according to claim 1, wherein: The tension hook (2) is of S-shaped structure, and the second tension hook (3) is of C-shaped structure, the second tension hook (3) corresponds to the tension hook (2).

3. A screen tensioning device for a vibrating screen according to claim 1, wherein: The adjusting piece comprises a locking nut (6) and a butterfly spring (7), the locking nut (6) is arranged at one end of the tension force adjusting rod (4) away from the second tension hook (3), and the butterfly spring (7) is uniformly arranged between the locking nut (6) and the vertical ear plate.

4. A screen tensioning device for a vibrating screen according to claim 3, wherein: The number of the locking nuts (6) is not less than two, the locking nuts (6) are connected with the tension force adjusting rod (4) in a threaded connection mode, and the locking nuts (6) are hexagonal nuts.

5. A screen tensioning device for a vibrating screen according to claim 1, wherein: The front and rear tension pieces (8) comprise two fixed side frames (84) fixed on the two sides of the woven screen (1), an inclined material collecting plate (83) is arranged on the lower side of each fixed side frame (84), the two inclined material collecting plates (83) are of a horn-shaped structure with an upward opening, a sliding rod (82) is arranged on the lower end of one side of one inclined material collecting plate (83), a sliding hole corresponding to the sliding rod (82) is arranged on the other inclined material collecting plate (83), an adjusting screw rod (81) is rotatably arranged on one inclined material collecting plate (83), and the adjusting screw rod (81) is connected with the other inclined material collecting plate (83) in a threaded connection mode.

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