Blowing equipment for airflow screening device

Abstract

The utility model relates to blowing equipment for an airflow screening device, which belongs to the technical field of blowing equipment and comprises a blowing equipment body, the blowing equipment body comprises a driving motor, a main shaft, eccentric wheels and a blowing component, the main shaft is provided with a plurality of eccentric wheels, the driving motor drives the main shaft to rotate, and the eccentric wheels drive the blowing component to swing for blowing. The air blowing assembly comprises an air blowing frame, a mounting plate, a spray head and a spring, air is sprayed through the spray head, air blowing operation is conducted on the airflow screening device, in order to obtain the better air blowing uniformity effect, a driving motor is started and drives an eccentric wheel to rotate through a main shaft, and due to eccentric mounting of the eccentric wheel, the compression amount of the spring can be changed; furthermore, the mounting plate swings along with rotation of the eccentric wheels, the spray head is driven to swing, the air blowing uniformity is improved, and meanwhile the uniformity is further improved through the spirally-arranged eccentric wheels.

Description

Technical Field

[0001] The utility model belongs to the technical field of air blowing equipment, in particular to an air blowing equipment for an airflow screening device. Background Art

[0002] Airflow screen is a high-precision screening equipment for fine powder screening. It is widely used in chemical, pharmaceutical, food, papermaking, metallurgy, building materials, rubber, machinery and other industries. It can continuously screen powder materials with a fineness range of 80-500 mesh, and the screen can be replaced at will. The airflow screen (airflow screen) has high screening efficiency, large output, precise fineness, no over-diameter mixing phenomenon, the screen is vertically installed without load, long service life, adaptable to a wide range of fineness, fully enclosed structure, no dust spillage, low noise, low energy consumption, continuous operation, and easy maintenance.

[0003] The airflow in many airflow screening devices is not uniform enough, resulting in low screening efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0006] The utility model discloses an air blowing device for an airflow screening device, comprising an air blowing device body, the air blowing device body comprising an active motor, a main shaft, an eccentric wheel and an air blowing assembly, the main shaft is provided with a plurality of eccentric wheels, the active motor drives the main shaft to rotate, the eccentric wheel drives the air blowing assembly to swing and blow, the air blowing assembly comprises an air blowing frame, a mounting plate, a nozzle and a spring, the plurality of nozzles are mounted on the air blowing frame through the mounting plate, the mounting plate is in contact with the eccentric wheel, one end of the spring is fixedly connected to the mounting plate, the other end is fixedly connected to the air blowing frame, and the spring is in a compressed state.

[0007] Preferably, a plurality of eccentric wheel bolts are arranged along the axial direction of the main shaft.

[0008] Preferably, a plurality of adjustment holes are provided on the mounting plate, and different adjustment holes are selected to be installed on the blowing frame to change the swing amplitude of the nozzle.

[0009] Preferably, a slot is provided on the mounting plate, and the eccentric wheel is inserted into the slot.

[0010] Preferably, the nozzle faces the airflow screening device, and the nozzle is connected to an external air pipe through a rubber hose. Beneficial Effects

[0011] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0012] The utility model discloses an air blowing device for an air flow screening device, which uses a nozzle to blow air to the air flow screening device. In order to obtain a better effect of blowing uniformity, an active motor is started, and the active motor drives the eccentric wheel to rotate through the main shaft. Due to the eccentric installation of the eccentric wheel, the compression amount of the spring changes, and further, the mounting plate swings with the rotation of the eccentric wheel, which drives the nozzle to swing, thereby improving the blowing uniformity. At the same time, the spirally arranged eccentric wheel further improves the uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of an air blowing device for an airflow screening device of the utility model;

[0014] Figure 2 It is a working schematic diagram of an air blowing device for an airflow screening device of the utility model;

[0015] Figure 3 This is a schematic diagram of the contact between an eccentric wheel and a mounting plate of an air blowing device for an airflow screening device of the utility model.

[0016] Explanation of the symbols in the schematic diagram:

[0017] 100, blowing equipment body; 110, driving motor; 120, main shaft; 130, eccentric wheel; 140, blowing assembly; 141, blowing frame; 142, mounting plate; 143, nozzle; 144, spring; 145, adjustment hole;

[0018] 200. Airflow screening device. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0022] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0023] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. Example

[0025] See attached Figure 1-3A blowing device for an airflow screening device according to the present embodiment includes a blowing device body 100. The blowing device body 100 includes an active motor 110, a main shaft 120, an eccentric wheel 130 and a blowing assembly 140. The main shaft 120 is provided with multiple eccentric wheels 130. The active motor 110 drives the main shaft 120 to rotate, and the eccentric wheel 130 drives the blowing assembly 140 to swing and blow. The blowing assembly 140 includes a blowing frame 141, a mounting plate 142, a nozzle 143 and a spring 144. Multiple nozzles 143 are installed on the blowing frame 141 through the mounting plate 142. The mounting plate 142 contacts the eccentric wheel 130. One end of the spring 144 is fixedly connected to the mounting plate 142, and the other end is fixedly connected to the blowing frame 141. The spring 144 is in a compressed state.

[0026] In this embodiment, the bolts of the multiple eccentric wheels 130 are arranged along the axial direction of the main shaft 120 .

[0027] The mounting plate 142 of this embodiment is provided with a plurality of adjustment holes 145. Different adjustment holes 145 are selected to be installed on the blowing rack 141 to change the swing amplitude of the nozzle 143. It should be noted that when the installation position needs to be changed, the spring 144 needs to be removed first, and a new model or length of the spring 144 needs to be reselected for installation.

[0028] In this embodiment, a slot is provided on the mounting plate 142 , and the eccentric wheel 130 is inserted into the slot.

[0029] The nozzle 143 of this embodiment is facing the screen in the airflow screening device 200, and the nozzle 143 is connected to an external air pipe through a rubber hose.

[0030] It should be noted that the airflow screening device 200 is a conventional device and will not be described in detail here, nor will it be described in detail in the corresponding drawings.

[0031] Working principle: when blowing, the jet is ejected through the nozzle 143 to blow the airflow screening device 200. In order to obtain a better blowing uniformity effect, the active motor 110 is started. The active motor 110 drives the eccentric wheel 130 to rotate through the main shaft 120. Due to the eccentric installation of the eccentric wheel 130, the compression amount of the spring 144 will change. Furthermore, the mounting plate 142 swings with the rotation of the eccentric wheel 130, which drives the swing of the nozzle 143, thereby improving the blowing uniformity. At the same time, the spirally arranged eccentric wheel 130 further improves the uniformity.

[0032] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A blowing device for an airflow screening device, characterized in that: The invention comprises a blowing device body (100), wherein the blowing device body (100) comprises an active motor (110), a main shaft (120), an eccentric wheel (130) and a blowing assembly (140), wherein the main shaft (120) is provided with a plurality of eccentric wheels (130), wherein the active motor (110) drives the main shaft (120) to rotate, and the eccentric wheel (130) drives the blowing assembly (140) to swing and blow, and wherein the blowing assembly (140) comprises a blowing frame (141), a mounting plate (142), a nozzle (143) and a spring (144), wherein the plurality of nozzles (143) are mounted on the blowing frame (141) via the mounting plate (142), wherein the mounting plate (142) contacts the eccentric wheel (130), wherein one end of the spring (144) is fixedly connected to the mounting plate (142), and the other end is fixedly connected to the blowing frame (141), and wherein the spring (144) is in a compressed state.

2. The air blowing device for airflow screening device according to claim 1, characterized in that: A plurality of eccentric wheel (130) bolts are arranged along the axial direction of the main shaft (120).

3. The air blowing device for airflow screening device according to claim 1, characterized in that: The mounting plate (142) is provided with a plurality of adjustment holes (145), and different adjustment holes (145) are selected to be mounted on the blowing frame (141) to change the swing amplitude of the nozzle (143).

4. The air blowing device for airflow screening device according to claim 1, characterized in that: The mounting plate (142) is provided with a slot, and the eccentric wheel (130) is inserted into the slot.

5. The air blowing device for airflow screening device according to claim 1, characterized in that: The nozzle (143) faces the screen of the airflow screening device (200), and the nozzle (143) is connected to an external air pipe via a rubber hose.

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