CN216728179U - Vibrating screen - Google Patents

Abstract

The utility model relates to the technical field of screening machinery, in particular to a vibrating screen which comprises a rack, a screen box fixedly arranged on the rack, a screen fixedly connected inside the screen box, an excitation device for driving the screen to vibrate and arranged below the screen box, and a dustproof cover plate arranged on the screen box, wherein the dustproof cover plate is hinged on a lock catch of the screen box through a hinge; through the dustproof cover plate that the articulated set up, can be convenient for to the clearance and the maintenance of whole shale shaker, when taking place the sieve mesh jam or need simply maintain equipment, the access door of the articulated area observation window of accessible is quick to observing and examining the sieve incasement portion condition, has improved holistic work efficiency, the cost is reduced.

Description

Vibrating screen

Technical Field

The utility model relates to the technical field of screening machinery, in particular to a vibrating screen.

Background

The application of the vibrating screen is very wide, and from mining, metallurgy, coal, petrochemical industry, water conservancy and electric power, light industry, construction, transportation, even flour processing and the like, the vibrating screen machine cannot be separated in all aspects of our life; coal and ore which are used as main raw materials of power plants and mine plants need to be screened and classified before being used.

The existing vibrating screen mainly comprises a motor, a screen box, a screen mesh, an excitation device and the like, wherein the motor enables an eccentric block of the vibration exciter to rotate at a high speed through a triangular belt or a coupler, the running eccentric block generates centrifugal force to excite the screen box to generate movement with certain amplitude, the material on the screen is subjected to impulse transmitted by the screen box on the inclined screen mesh to generate continuous throwing movement, and particles smaller than screen meshes are screened through in the process of meeting the material and the screen surface, so that the grading is realized. However, when the existing vibrating screen works, the situation that screen holes are blocked easily occurs, the screen box cover cannot be opened in time when an accident happens, and workers cannot timely observe the screening situation in the vibrating screen and timely handle the situation of failure.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a vibrating screen to solve the above problems of the prior art.

The utility model provides the following technical scheme:

a vibrating screen comprises a frame, a screen box fixedly arranged on the frame, a screen fixedly connected inside the screen box, an excitation device arranged below the screen box and used for driving the screen to vibrate, and a dustproof cover plate arranged on the screen box;

wherein, dustproof cover plate passes through the hinge and articulates on the hasp of sieve case, has seted up the through-hole at dustproof cover plate's central point, and through-hole department articulates there is the access door, and fixed mounting has transparent observation window on the access door, and the excitation device is two driving motor for setting up in sieve case below, is equipped with the synchronizing wheel on driving motor, and two driving motor link to each other through the hold-in range of installing on the synchronizing wheel.

The vibrating screen provided by the utility model also has the following technical characteristics:

furthermore, the sieve box is divided into a sieve material cavity and a discharge cavity up and down through the sieve mesh.

Furthermore, the screening box further comprises a feeding hole, a discharging hole and a slag hole which are connected with the screening box, wherein the feeding hole and the slag hole are respectively arranged on two sides of the screening box and communicated with the screening cavity, the horizontal position of the feeding hole is higher than that of the slag hole, and the discharging hole is arranged below the slag hole and communicated with the discharging cavity.

Further, the sieve case and the screen cloth of installing in the sieve case all along the direction downward sloping of feed inlet to the slag notch.

Further, the screen cloth passes through bolt fixed connection and is in the sieve incasement portion, and the screen cloth of sieve incasement portion is the screen cloth that has different sieve mesh sizes.

Furthermore, a junction box is arranged on one supporting leg of the machine frame and is electrically connected with the driving motor.

Furthermore, the length dimension of the dustproof cover plate is 1700mm, the length dimension of the screen is 1500mm, and the dimension of the observation window is 800mm in length and 600mm in width.

Compared with the prior art, the utility model has the beneficial effects that:

according to the vibrating screen, the dustproof cover plate which is hinged above the screen box can be used for comprehensively overhauling and cleaning the inside of the screen box, when simple maintenance and cleaning of blocked screen holes are needed, the conditions in the screen box can be quickly observed and simply maintained through the access door and the observation window which are hinged on the dustproof cover plate, the overall working efficiency of the vibrating screen equipment is improved, the maintenance and labor cost is reduced, and the damage condition of the vibrating screen is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of a shaker provided in accordance with the present invention;

FIG. 2 is a left side view of a shaker provided in accordance with the present invention;

fig. 3 is a top view of a shaker screen provided in accordance with the present invention.

In the figure:

1-a machine frame, 11-supporting legs,

2-sieve box, 21-sieve net, 22-sieve cavity, 23-discharge cavity,

3-vibration exciting device, 31-driving motor, 32-junction box,

4-dustproof cover plate, 41-access door, 42-observation window,

5-feeding hole, 6-discharging hole and 7-slag hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is noted that the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "disposed," "connected," "disposed," and "in communication with" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The utility model is discussed in detail below with reference to figures 1 to 3 and specific embodiments:

as shown in fig. 1 to 3, the present invention provides a vibrating screen, which comprises a frame 1 for fixing and supporting structures such as a screen box 2; the screen box 2 is fixedly arranged on the frame 1 and is used for screening materials; the screen 21 is fixedly connected inside the screen box 2 and used for screening materials with different diameters; an excitation device 3 for driving the screen 21 to vibrate is arranged below the screen box 2 and is used for providing power for the whole vibrating screen so as to realize the screening function; the screen box 2 is provided with a dustproof cover plate 4 which plays a role in preventing dust from scattering due to vibration of materials when the vibrating screen works;

the dustproof cover plate 4 is hinged to the lock catch of the screen box 2 through a hinge, so that a worker can conveniently open the dustproof cover plate 4 to clean and maintain the interior of the screen box 2; a through hole is formed in the center of the dustproof cover plate 4, an access door 41 is hinged to the through hole, a transparent observation window 42 is fixedly mounted on the access door 41, a worker can observe the vibration condition in the vibrating screen at any time through the observation window 42, and when the screen 21 is blocked or has other faults, the worker can quickly maintain and clean the vibrating screen through the access door 41; exciting arrangement 3 is for setting up two driving motor 31 in sieve case 2 below, is equipped with the synchronizing wheel on driving motor 31, and two driving motor 31 link to each other through the hold-in range of installing on the synchronizing wheel, and driving motor 31 is synchronous to be rotated, and more even vibrates sieve case 2 insidely, and driving motor 31 lug connection is in the below of sieve case 2, directly adopts the excitation point to drive, has reduced the transmission loss through transmission.

Specifically, in this embodiment, sieve case 2 is divided into sieve material chamber 22 and two cavities of ejection of compact chamber 23 from top to bottom through screen cloth 21, and the material is screened in sieve material chamber 22, and the material of minor diameter falls into ejection of compact chamber 23 through screen cloth 21 in, and the material of major diameter can't stay in sieve material chamber 22 through screen cloth 21.

Specifically, in this embodiment, the device further comprises a feed port 5, a discharge port 6 and a slag hole 7 which are connected with the sieve box 2, wherein the feed port 5 and the slag hole 7 are respectively arranged at two sides of the sieve box 2 and communicated with the sieve cavity 22, the horizontal position of the feed port 5 is higher than that of the slag hole 7, and the discharge port 6 is arranged below the slag hole 7 and communicated with the discharge cavity 23; the screen box 2 and the screen 21 arranged in the screen box 2 are inclined downwards along the direction from the feed port 5 to the slag outlet 7 at a certain angle; the material passes through feed inlet 5 and gets into sieve case 2 and screens in, lies in the less material of play material chamber 23 internal diameter after the screening and passes through the angle slope and flow out from discharge gate 6, leaves over and passes through the angle slope and flow out from slag notch 7 at the great material of sieve material chamber 22 internal diameter.

Specifically, in this embodiment, the screen 21 is fixedly connected inside the screen box 2, and the connection manner of installing the screen 21 in the screen box 2 can be selected from various manners, and in the preferred embodiment, the screen 21 is connected by bolts; the inside screen cloth 21 of sieve case 2 can be selected for use and is had different sieve mesh sizes's screen cloth 21, selects the screen cloth 21 of different size sieve meshes to carry out the screening function according to the demand of different size materials, and is preferred, and the size of sieve diameter can be selected for 100mm and 150mm two kinds in this embodiment.

Specifically, in this embodiment, a junction box 32 is disposed on one supporting leg 11 of the frame 1, the junction box 32 is electrically connected to the driving motor 31, and is used for controlling the driving motor 31 to work to provide driving force for the whole vibrating screen, and the number of the supporting legs 11 is four, so that the connection frame 1 is more stable to support the ground, and a vibration reduction effect can be achieved.

Specifically, in this embodiment, the length dimension of dustproof cover plate 4 selects 1700mm, the length dimension of screen cloth 21 selects 1500mm, the length of dustproof cover plate 4 is greater than the length of screen cloth 21, when having guaranteed to open dustproof cover plate 4 and overhaul and clear up, can be comprehensive to the inside and screen cloth 21 of sieve case 2 make the effect of investigation or clearance, efficiency has been improved more, the size of observation window 42 selects to be long 800mm, wide 600mm, the inside work of sieve case 2 and the jam condition of observation that can be clear, can not lead to the field of vision to be unclear or the size is too big to be unfavorable for the maintenance of small problem at ordinary times because of the size is too little.

When the vibrating screen is used, materials are conveyed into the screen box 2 from the feeding port 5, the vibration excitation device 3 is started to carry out vibrating screening, the materials with smaller diameters fall into the discharging cavity 23 through the screen 21 and flow out of the vibrating screen from the discharging port 6, and the materials with larger diameters are left on the screen 21 and flow out of the vibrating screen through the slag outlet 7; when the shale shaker during operation, workman accessible observation window 42, the quick condition to in the sieve case 2 is observed, whether have sieve mesh to block up or other unexpected condition to take place, can stop the shale shaker if meet accident, carries out simple and easy maintenance to the shale shaker through articulated access door 41, and when the trouble was comparatively serious, the maintenance that the accessible articulated shield plate 4 carried out the trouble to the shale shaker.

The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.

Claims (7)

1. A vibrating screen is characterized in that: the screen box is fixedly arranged on the frame, the screen is fixedly connected inside the screen box, an excitation device for driving the screen to vibrate is arranged below the screen box, and a dustproof cover plate is arranged on the screen box;

the utility model discloses a screen box, including screen box, dust-proof cover plate, screen box, vibration excitation device, screen box, wherein, dust-proof cover plate passes through the hinge and articulates on the hasp of screen box the through-hole has been seted up at dust-proof cover plate's central point, through-hole department articulates there is the access door fixed mounting has transparent observation window on the access door, the vibration excitation device is for setting up two driving motor of screen box below be equipped with the synchronizing wheel on the driving motor, two driving motor link to each other through the hold-in range of installing on the synchronizing wheel.

2. The vibratory screen of claim 1, wherein: the screen box is divided into a screen cavity and a discharge cavity up and down through the screen.

3. The vibratory screen of claim 2, wherein: still include with feed inlet, discharge gate and the slag notch that the sieve case links to each other, the feed inlet sets up respectively with the slag notch the both sides of sieve case with sieve material chamber communicates with each other, the horizontal position of feed inlet is higher than the horizontal position of slag notch, the discharge gate sets up the below of slag notch with ejection of compact chamber communicates with each other.

4. The vibratory screen of claim 3, wherein: the sieve case and install in the sieve incasement the screen cloth all along the feed inlet to the direction downward sloping of slag notch.

5. The vibratory screen of claim 1, wherein: the screen cloth pass through bolt fixed connection sieve incasement portion, the screen cloth of sieve incasement portion is for having the screen cloth of different sieve mesh sizes.

6. The vibratory screen of claim 1, wherein: and a junction box is arranged on one supporting leg of the frame and is electrically connected with the driving motor.

7. The vibratory screen of claim 1, wherein: the length dimension of dustproof apron is 1700mm, the length dimension of screen cloth is 1500mm, the size of observation window is length 800mm, wide 600 mm.

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