Forced synchronous large circular vibrating screen

Abstract

The utility model discloses a forced synchronous large circular vibrating screen which comprises a screen box, elastic supporting devices are arranged at the four corners of the screen box, a screen mesh is arranged in the screen box, an eccentric driving device is detachably arranged on the side wall of the screen box, and the driving device comprises a mounting plate connected with the side wall of the screen box. An eccentric vibration device is arranged on the outer side face of the mounting plate and connected with a driving motor, oblique force of material impact is reduced, normal operation of the screen box is guaranteed, and the service life of the screen box is prolonged.

Description

Technical Field

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

[0002] According to the demand for large-scale mining, the circular vibrating screen, a key equipment for ore screening, is also becoming larger. Existing circular vibrating screens are usually driven by a single-axis vibrator. When in use, the material is loaded from the tail of the vibrating screen. After loading, the material will be spread on the screen under the effect of vibration. However, the larger the circular vibrating screen, the greater the capacity, and the required vibrator excitation force is also relatively large. Since the vibrator is installed on the side plate of the screen box, the side plate of the main vibration transmission component of the screen box is too concentrated, and the transmission shaft often breaks, resulting in the scrapping of the equipment. In order to solve this problem, an improvement of the technical solution is proposed. Utility Model Content

[0003] The utility model aims to overcome the disadvantages of the prior art that the connection between the vibrator and the screen box of a large circular vibrating screen is prone to breakage during use, which affects the use effect, and provides a forced synchronous large circular vibrating screen.

[0004] The utility model is realized through the following technical scheme: a forced synchronous large-scale circular vibrating screen, comprising a screen box, elastic supporting devices are arranged at the four corners of the screen box, a screen is arranged inside the screen box, an eccentric driving device is detachably arranged on the side wall of the screen box, the driving device comprises a mounting plate connected to the side wall of the screen box, an eccentric vibrating device is arranged on the outer side surface of the mounting plate, and the eccentric vibrating device is connected to a driving motor.

[0005] Furthermore, a groove for clamping a mounting plate is provided on the side wall of the screen box, and the mounting plate is triangular and connected to the screen box by bolts.

[0006] Furthermore, the eccentric vibration device comprises a first eccentric wheel arranged on the mounting plate, and the first eccentric wheel is arranged at a middle position of a side wall of the screen box.

[0007] Furthermore, a second eccentric wheel is arranged at the tail of the mounting plate, two second eccentric wheels are arranged, and pulleys with the same diameter are arranged on the rotating shafts of the first eccentric wheel and the second eccentric wheel, and the pulleys are connected by a toothed connecting belt.

[0008] Furthermore, the second eccentric wheel is arranged at the bottom corner of the mounting plate, and the diameter of the second eccentric wheel is smaller than the diameter of the first eccentric wheel.

[0009] Furthermore, the two second eccentric wheels are arranged on the same vertical plane.

[0010] The beneficial effects of the utility model are as follows: a groove for clamping the mounting plate is provided on the side wall of the screen box, the mounting plate is triangular and connected to the screen box by bolts, a part of the mounting plate and the groove is clamped together by bolts, thereby increasing the strength of the connection structure with the screen box, and the triangular mounting plate can reduce the sliding tendency with the side of the screen box during vibration, and the triangular mounting plate directly acts on the side of the mounting plate when subjected to force, and is used in conjunction with the bolts to greatly increase the stability when subjected to force, and the two second eccentric wheels increase the driving effect of the rear end of the screen box, reduce the oblique force of material impact, ensure the normal operation of the screen box, and extend the service life of the screen box. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall front view structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0013] Wherein: 1. screen box; 2. elastic support device; 3. mounting plate; 301. first eccentric wheel; 302. second eccentric wheel; 303. pulley. DETAILED DESCRIPTION

[0014] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, 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.

[0016] Example 1

[0017] like Figure 1-2As shown: A forced synchronous large-scale circular vibrating screen includes a screen box 1, and elastic support devices 2 are provided at the four corners of the screen box 1. A screen is provided inside the screen box 1, and a metal bar is installed on the top of the screen to block the material for a certain period of time during screening, prolong the time the material stays at the tail, and improve the screening effect. A groove for clamping the mounting plate 3 is provided on the side wall of the screen box 1. The mounting plate 3 is triangular and connected to the screen box 1 by bolts. A part of the mounting plate 3 is connected to the groove by bolts to increase the strength of the connection structure with the screen box 1, and the triangular mounting plate 3 can reduce the sliding tendency with the side of the screen box 1 during vibration, thereby increasing stability.

[0018] An eccentric driving device is detachably provided on the side wall of the screen box 1, and the driving device comprises a mounting plate 3 connected to the side wall of the screen box 1, an eccentric vibrating device is provided on the outer side of the mounting plate 3, and the eccentric vibrating device is connected to a driving motor, and the eccentric vibrating device comprises a first eccentric wheel 301 arranged on the mounting plate 3, and the first eccentric wheel 301 is arranged in the middle position of the side wall of the screen box 1, and a second eccentric wheel 302 is arranged at the tail of the mounting plate 3, and the first eccentric wheel 301 and the second eccentric wheel 302 are rotatably connected to a fixed shaft on the mounting plate 3, and the fixed shaft is welded to the mounting plate 3, so that the first eccentric wheel 301 and the second eccentric wheel 302 increase the stress points when vibrating, and if the mounting plate 3 breaks after long-term use, the mounting plate 3 can be directly replaced, which greatly reduces the damage to the screen box 1 and prolongs the use effect of the screen box 1, and at the same time, the triangular mounting plate 3 directly acts on the side of the mounting plate 3 when subjected to force, and is used in conjunction with bolts, which greatly increases the stability when subjected to force and ensures the screening effect of long-term use.

[0019] The second eccentric wheels 302 are provided with two, and the rotating shafts of the first eccentric wheel 301 and the second eccentric wheel 302 are provided with pulleys 303 with the same diameter, and the pulleys 303 are connected by a toothed connecting belt. The second eccentric wheel 302 is arranged at the bottom corner of the mounting plate 3, and the diameter of the second eccentric wheel 302 is smaller than the diameter of the first eccentric wheel 301. The two second eccentric wheels 302 are arranged on the same vertical plane, and the pulleys with the same diameter are used to make the first eccentric wheel 301 and the second eccentric wheel 302 keep rotating synchronously. At the same time, the second eccentric wheels 302 installed on the same plane above and below can drive the upper and lower parts of the screen box 1 to deflect at the same time, and the first deflection wheel and the second deflection wheel are connected by a toothed connecting belt to ensure the synchronization of rotation, so that the large mass material at the tail of the screen box 1 when screening starts will be quickly screened downward, and the two second eccentric wheels 302 increase the driving effect of the tail of the screen box 1, reduce the oblique force of the material impact, ensure the normal operation of the screen box 1, and extend the service life of the screen box 1.

[0020] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A forced synchronous large circular vibrating screen, comprising a screen box, wherein the four corners of the screen box are provided with elastic support devices, and a screen is provided inside the screen box, characterized in that: An eccentric driving device is detachably provided on the side wall of the screen box, and the driving device comprises a mounting plate connected to the side wall of the screen box, an eccentric vibrating device is provided on the outer side of the mounting plate, and the eccentric vibrating device is connected to a driving motor; A groove for clamping a mounting plate is provided on the side wall of the screen box, and the mounting plate is triangular and connected to the screen box by bolts; The eccentric vibration device comprises a first eccentric wheel arranged on the mounting plate, wherein the first eccentric wheel is arranged at the middle position of the side wall of the screen box; A second eccentric wheel is arranged at the tail of the mounting plate, and two second eccentric wheels are arranged. Belt pulleys with the same diameter are arranged on the rotating shafts of the first eccentric wheel and the second eccentric wheel, and the belt pulleys are connected by a toothed connecting belt.

2. The forced synchronous large circular vibrating screen according to claim 1 is characterized in that: The second eccentric wheel is arranged at the bottom corner of the mounting plate, and the diameter of the second eccentric wheel is smaller than the diameter of the first eccentric wheel.

3. The forced synchronous large circular vibrating screen according to claim 1 is characterized in that: The two second eccentric wheels are arranged on the same vertical plane.

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