Vibrating linear screen for aggregates

Abstract

The application relates to the technical field of aggregate processing equipment, in particular to a vibrating linear screen for aggregate. In the vibrating linear screen for aggregate provided in the application, through cooperation of the horizontal clamp and the wedge-shaped block, locking or loosening of the screen mesh can be completed by only rotating the lever clamp body. Moreover, the wedge-shaped surface of the wedge-shaped block is attached to the chamfered inclined surface of the screen mesh frame, so that bidirectional extrusion limiting functions in the vertical direction and the horizontal direction can be realized in the locking state of the horizontal clamp. The above structure design can not only effectively resist the impact force generated by high-frequency vibration and avoid loosening or displacement of the screen mesh. Meanwhile, one person can complete the operation without the aid of tools, the downtime maintenance time of the production line is greatly reduced, and the labor cost is reduced.

Description

Technical Field

[0001] This application relates to the field of aggregate processing equipment technology, and more specifically, to a vibrating linear screen for aggregates. Background Technology

[0002] In the construction industry, aggregates are coarse aggregates used in asphalt concrete, and they are generally composed of stones, gravel, and stone chips. Aggregates in asphalt concrete play a role in filling gaps, increasing the consistency of the material, and improving its strength.

[0003] In related technologies, the proportion and size of aggregates are crucial factors affecting the quality of asphalt concrete products. If aggregates are added directly to the mixture without screening, aggregates that do not meet the size requirements will lead to a decrease in the strength of the asphalt concrete products, thus affecting their actual service life and product quality. Therefore, in actual processes, vibrating linear screens are used to grade and screen aggregates to select aggregates of different sizes according to actual needs.

[0004] However, the screen mesh of a linear vibrating screen will gradually wear down and thin under long-term high-frequency vibration and aggregate impact. Traditionally, the screen mesh and screen frame are usually fixed with bolts. This method is time-consuming and labor-intensive, requires additional tools, and is very inconvenient when replacing screen mesh. Utility Model Content

[0005] In view of this, embodiments of this application provide a vibrating linear screen for aggregates, which enables rapid screen replacement, stable connection, and requires no tool assistance.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions: A vibrating linear screen for aggregates, comprising: frame; The screen frame is elastically connected to the machine frame at its four bottom corners by vibration damping springs. A vibration motor is fixedly installed at its bottom, and a discharge pipe extending downwards is provided at its end. A screen, the external dimensions of which are adapted to the opening size of the screen frame, and the outer edge of its frame in the length direction is provided with a chamfered bevel. The screen is disposed inside the screen frame and abuts against the baffle on the inner side wall of the screen frame. Multiple horizontal clamps are equidistantly distributed along the circumference of the top surface of the screen frame. Each clamp has a wedge-shaped block at its bottom, and the bottom surface of the wedge-shaped block has a wedge-shaped surface adapted to the chamfered bevel. When the clamp body rotates downward to the locked state, the wedge-shaped surface and the chamfered bevel are pressed together, and the frame is pressed against the baffle to fix the screen inside the screen frame.

[0007] In some possible implementations, the sieve frame consists of the border and a mesh surface located in the middle of the border.

[0008] In some possible implementations, rectangular handles are symmetrically fixed to the top surfaces of both ends of the frame along its length, and the rectangular handles are welded to the frame.

[0009] In some possible implementations, the screen frame side plate is provided with fastening bolts in the horizontal direction, the ends of which penetrate the side plate and abut against the top surface of the frame.

[0010] In some possible implementations, the mesh surface is located below the top surface of the border.

[0011] In some possible implementations, the mesh surface is detachably connected to the frame by bolts.

[0012] The vibrating linear screen for aggregates provided in this application has at least the following beneficial effects: In the vibrating linear screen for aggregates provided in this application embodiment, the screen can be locked or released simply by rotating the clamp body through the cooperation of the horizontal clamp and the wedge block. Furthermore, the wedge-shaped surface of the wedge block fits against the chamfered bevel of the screen frame, enabling bidirectional compression and limiting in both the vertical and horizontal directions when the horizontal clamp is locked. This structural design effectively resists the impact force generated by high-frequency vibration and prevents the screen from loosening or shifting. Simultaneously, it can be operated by a single person without tools, significantly reducing production line downtime and labor costs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a vibrating linear screen for aggregates provided in an embodiment of this application; Figure 2 for Figure 1 A top-view structural diagram; Figure 3 for Figure 1 Exploded view of the middle sieve frame and sieve mesh; Figure 4 for Figure 1 Side sectional view; Figure 5 for Figure 1 Side view of the assembly of the horizontal clamp and the screen; Figure 6 for Figure 5 Exploded view of a horizontal clamp and screen; Figure 7 for Figure 1 Schematic diagram of the structure of the medium screen; Figure 8 This is a schematic diagram of the structure of a vibrating linear screen for aggregates provided in another embodiment of this application.

[0015] In the picture: 100. Frame; 200. Screen frame; 210. Opening; 220. Discharge pipe; 230. Baffle; 300. Screen mesh; 310. Mesh surface; 320. Frame; 321. Chamfered bevel; 400. Horizontal clamp; 410. Clamp body; 500. Wedge block; 510. Wedge surface; 600. Rectangular handle; 700. Fastening bolt; 800. Vibration damping spring; 900. Vibration motor. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-7 As shown in the embodiment of this application, the vibrating linear screen for aggregates includes a frame 100, a screen frame 200, a screen mesh 300, and multiple horizontal clamps 400. The frame 100 is the supporting structure of the vibrating linear screen and is welded from multiple 304 stainless steel square tubes. The screen frame 200 is mounted on the top of the frame 100. The screen frame 200 is a rectangular frame with an opening 210 at the top, and spring seats are welded to the four corners of its bottom. Vibration damping springs 800 are fixedly installed on the spring seats, and the screen frame 200 is fixedly connected to the top of the frame 100 through these vibration damping springs 800. Specifically, the vibration damping spring 800 is a metal helical spring, and its other end is fixedly connected to the spring seat on the top surface of the frame 100 to ensure an elastic connection between the screen frame 200 and the frame 100, thereby reducing the transmission of excitation force to the frame 100.

[0018] A vibrating motor 900 is bolted to the bottom center area of ​​the screen frame 200. The vibrating motor 900 is a dual-axis vibrating motor, with its output shaft parallel to the length of the screen frame 200. During operation, the vibrating motor 900 drives the screen frame 200 to vibrate linearly along its length using centrifugal force generated by the dual-axis eccentric blocks. The vibrating motor 900 can be detachably connected to the bottom of the screen mesh 300 via a flange. Furthermore, a downward-extending discharge pipe 220 is provided at one end of the screen frame 200 along its length. The discharge pipe 220 communicates with the interior of the screen frame 200 to discharge the screened aggregate.

[0019] like Figures 3-7 As shown, the screen 300 consists of a mesh surface 310 and a surrounding frame 320. Specifically, the frame 320 can be used to fix the mesh surface 310 at its center position by bolts, and the frame 320 can be a rectangular steel frame. Furthermore, the outer diameter of the frame 320 of the screen 300 is adapted to the size of the opening 210 of the screen frame 200, so the screen 300 can be installed inside the screen frame 200 through the opening 210. The screen 300 is also supported and overlapped with a pre-installed baffle 230 inside the screen frame 200 via the frame 320.

[0020] In this embodiment, multiple horizontal clamps 400 are distributed circumferentially along the top surface of the screen frame 200. Each horizontal clamp 400 includes a fixed base and a clamp body 410 rotatably connected to the fixed base. A wedge block 500 is fixedly connected to the bottom of the clamp body 410, and the bottom surface of the wedge block 500 is cut to form a wedge surface 510. In contrast, the outer edge of the top of the frame 320 of the screen 300 is provided with a chamfered bevel 321. The chamfered bevel 321 and the wedge surface 510 are parallel to each other to ensure that the two can fit together completely.

[0021] The following is combined with Figures 1-7 The method of using the vibrating linear screen for aggregates provided in the embodiments of this application is described.

[0022] The wedge block 500 of the horizontal clamp 400 forms a wedge-shaped fit with the chamfered bevel surface 321 of the frame 320 of the screen 300. When the clamp body 410 rotates downward to the locked state, the wedge block 500 will fit against the chamfered bevel surface 321 of the frame 320 of the screen 300 through the wedge surface 510, and generate vertical and contact pressure. This pressure can be decomposed into a vertically downward clamping force to make the frame 320 fit tightly against the baffle 230, and a horizontally inward squeezing force to restrict the lateral movement of the frame 320, thereby achieving the stability and fixation of the screen 300.

[0023] In the vibrating linear screen for aggregates provided in this embodiment, the horizontal clamp 400 and the wedge block 500 work together to lock or release the screen 300 simply by rotating the clamp body 410. Furthermore, the wedge-shaped surface 510 of the wedge block 500 fits against the chamfered bevel 321 of the screen 300's frame 320, enabling bidirectional compression and limiting in both the vertical and horizontal directions when the horizontal clamp 400 is locked. This structural design effectively resists the impact force generated by high-frequency vibration and prevents the screen 300 from loosening or shifting. Moreover, it allows for operation by a single person without tools, significantly reducing production line downtime and labor costs.

[0024] In some embodiments, rectangular handles 600 are symmetrically fixed to the top surfaces of both ends of the frame 320 along its length, and the rectangular handles 600 are welded to the frame 320. The rectangular handles 600 enable quick picking and putting away of the screen 300. When replacing the screen 300, the operator can move the screen 300 using the handles without the need for tools, thereby reducing the number of operation steps and shortening the time required to replace the screen 300.

[0025] In some embodiments, such as Figure 8 As shown, the side plate of the screen frame 200 is equipped with fastening bolts 700 along the horizontal direction. The ends of the fastening bolts 700 penetrate the side plate and abut against the top surface of the frame 320. By providing the fastening bolts 700 in the horizontal direction on the side plate of the screen frame 200, the screen 300 can be limited in the horizontal direction. Combined with the vertical clamping action of the horizontal clamp 400, the screen 300 can be fixed in both vertical clamping and horizontal limiting, thereby effectively resisting the lateral movement of the screen 300 during vibration.

[0026] In some embodiments, the mesh surface 310 is located below the top surface of the frame 320, and the mesh surface 310 and the frame 320 are detachably connected by bolts.

[0027] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0028] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0029] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0030] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0031] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0032] As used herein, the term "substrate" refers to the material on which subsequent material layers are added. The substrate itself may be patterned. The material added on top of the substrate may be patterned or may remain unpatterned. Furthermore, the substrate may include a wide range of materials, such as silicon, germanium, gallium arsenide, indium phosphide, etc. Alternatively, the substrate may be made of a non-conductive material (e.g., glass, plastic, or sapphire wafers).

[0033] The term "layer" as used herein can refer to a portion of material comprising a region of thickness. A layer may extend over the entire underlying or overlying structure, or may have a extent smaller than that of the underlying or overlying structure. Furthermore, a layer may be a region of a homogeneous or non-homogeneous continuous structure, with a thickness less than that of the continuous structure. For example, a layer may be located between the top and bottom surfaces of the continuous structure, or between any pairs of lateral planes at the top and bottom surfaces. A layer may extend laterally, vertically, and / or along a tapered surface. A substrate may be a layer, and may include one or more layers, and / or may have one or more layers located on, above, and / or below it. A layer may include multiple layers. For example, an interconnect layer may include one or more conductor and contact layers (forming contacts, interconnects, and / or vias therein) and one or more dielectric layers.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A vibrating linear screen for aggregates, characterized in that, include: frame; The screen frame is elastically connected to the machine frame at its four bottom corners by vibration damping springs. A vibration motor is fixedly installed at its bottom, and a discharge pipe extending downwards is provided at its end. A screen, the external dimensions of which are adapted to the opening size of the screen frame, and the outer edge of its frame in the length direction is provided with a chamfered bevel. The screen is disposed inside the screen frame and abuts against the baffle on the inner side wall of the screen frame. Multiple horizontal clamps are equidistantly distributed along the circumference of the top surface of the screen frame. Each clamp has a wedge-shaped block at its bottom, and the bottom surface of the wedge-shaped block has a wedge-shaped surface adapted to the chamfered bevel. When the clamp body rotates downward to the locked state, the wedge-shaped surface and the chamfered bevel are pressed together, and the frame is pressed against the baffle to fix the screen inside the screen frame.

2. The vibrating linear screen for aggregates according to claim 1, characterized in that: The sieve frame consists of the border and the mesh surface located in the middle of the border.

3. The vibrating linear screen for aggregates according to claim 2, characterized in that: Rectangular handles are symmetrically fixed to the top surfaces of both ends of the frame along its length, and the rectangular handles are welded to the frame.

4. The vibrating linear screen for aggregates according to claim 3, characterized in that: The side plate of the screen frame is provided with fastening bolts in the horizontal direction, and the ends of the fastening bolts penetrate the side plate and abut against the top surface of the frame.

5. The vibrating linear screen for aggregates according to claim 3, characterized in that: The mesh surface is located below the top surface of the frame.

6. The vibrating linear screen for aggregates according to claim 3, characterized in that: The mesh surface and the frame are detachably connected by bolts.

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