Vibrating screen for concrete processing

Abstract

The utility model relates to the technical field of concrete processing, and particularly discloses a vibrating screen for concrete processing, which comprises a protective shell, a groove is arranged on the upper surface of the protective shell, a maintenance upper cover is mounted at the upper end of the protective shell, an opening is arranged on the front surface of the lower end of the protective shell, and a collecting box is arranged on the inner wall of the opening of the protective shell. And two feeding pipelines are mounted on the upper surface of the maintenance upper cover in a penetrating manner. The vibrating screen for concrete processing is provided with the buffering partition plate and the material distributing bottom plate, when the vibrating screen works, raw materials are guided into the screening net frame through the feeding pipeline, then the raw materials are guided conveniently through the annular design of the buffering partition plate, the raw materials fall on the surface of the material distributing bottom plate, impact force is reduced while the raw materials are blocked through the material distributing bottom plate, and therefore the vibration effect is improved. And the raw materials are dispersed and fall through the discharging open grooves in the surface of the material distributing bottom plate, the raw materials are prevented from generating fixed falling points, damage to the filter screen is reduced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of concrete processing technology, specifically to a vibrating screen for concrete processing. Background Technology

[0002] Concrete processing is a process in which raw materials such as cement, aggregates, water, admixtures, and additives are mixed in a certain proportion, and then processed through steps such as mixing, molding, and curing to produce concrete products with a certain strength and performance. Based on the design strength grade, workability, durability, and other requirements of the concrete, the proportion of each raw material is determined through calculation and experimentation, i.e., the mix proportion. The mix proportion design needs to consider multiple factors, such as cement strength, aggregate characteristics, water-cement ratio, and sand ratio. Through trial mixing and adjustment, the optimal mix proportion that meets the project requirements is finally determined. The vibrating screen device used in concrete processing is a device used to screen concrete raw materials.

[0003] When existing vibrating screens are in use, during long-term screening processes, the fixed position of the falling raw material and the large impact force generated by the falling material can easily lead to severe damage to the screen mesh, resulting in a depression in the middle, which affects the screening and processing effect. Utility Model Content

[0004] The purpose of this utility model is to provide a vibrating screen for concrete processing, so as to solve the problem mentioned in the background art that the screen is easily damaged due to the fixed position of the raw material falling and the large impact force generated by the falling, resulting in a depression in the middle, which affects the screening and processing effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vibrating screen for concrete processing, comprising a protective shell with a groove on its upper surface and a maintenance cover installed on the upper end of the protective shell. The lower front surface of the protective shell has an opening, and a material collection box is installed on the inner wall of the opening. Two feed pipes are installed through the upper surface of the maintenance cover. A drive motor is fixedly connected to the side surface of the protective shell, and a squeezing cam is fixedly connected to the output end of the drive motor. A screening frame is installed in the groove of the protective shell, and support slide rods are fixedly connected to both ends of the screening frame. A first sprocket is fixedly connected to the upper end of the shaft of the squeezing cam. A second sprocket is installed on the upper surface of the feed pipe, and crushing blades are installed on the inner wall of the feed pipe cavity. A buffer distribution mechanism is installed on the inner wall of the screening frame, which collects raw materials through a buffer partition and distributes the raw materials evenly through a distribution base plate.

[0006] Preferably, the protective shell and the collection box are slidably connected, the two feeding pipes are symmetrically arranged, and the feeding port of the feeding pipe is offset from the lower axis of the feeding pipe.

[0007] By adopting the above technical solution, the sliding connection between the protective shell and the collection box facilitates the placement and removal of the collection box, and the inlet of the feeding pipe facilitates feeding and processing.

[0008] Preferably, the axis of the output end of the drive motor is arranged to correspond to the axis of the extrusion cam, and the side surface of the extrusion cam is in contact with the side surface of the support slide rod.

[0009] Using the above technical solution, the output end of the drive motor drives the extrusion cam to rotate, which in turn pushes the side support slide rod to slide.

[0010] Preferably, the screening frame is open at the top and bottom, and the screening frame is slidably connected to the protective shell through a support slide rod, and a spring is connected between the support slide rod and the protective shell.

[0011] Using the above technical solution, the screening is carried out by the horizontal movement of the screening frame under the drive of the support slide rod through the opening of the screening frame.

[0012] Preferably, a transmission chain is installed between the outer surface of the first sprocket and the outer surfaces of the two second sprockets, the shaft of the crushing blade is fixedly connected to the shaft of the second sprocket, and both the crushing blade and the second sprocket are connected to the feed pipe in a rotating manner.

[0013] Using the above technical solution, the rotation of the first sprocket causes the first sprocket to drive the two second sprockets to rotate via the transmission chain.

[0014] Preferably, the buffer distribution mechanism includes a buffer partition, which is fixedly connected to the inner wall of the screening frame, and a distribution base plate is fixedly connected to the inner wall of the buffer partition.

[0015] By adopting the above technical solution, the buffer distribution mechanism drives the buffer partition to move, and the buffer partition guides the raw material to the distribution bottom plate.

[0016] Preferably, the buffer plate is annular, the material distribution base plate is conical, and the surface of the material distribution base plate is circumferentially distributed with material discharge slots, and the width of the material discharge slots of the material distribution base plate increases from top to bottom.

[0017] Using the above technical solution, the conical design of the material distribution base plate facilitates the dispersion of raw materials, and then the grooves on the surface of the material distribution base plate allow the raw materials to fall.

[0018] Compared with the prior art, the beneficial effects of this utility model are: This vibrating screen for concrete processing:

[0019] 1. Equipped with a buffer baffle and a distribution base plate, this device allows raw materials to be fed into the screening frame through the feed pipe during operation. The ring-shaped design of the buffer baffle facilitates the guidance of the raw materials, causing them to fall onto the surface of the distribution base plate. The distribution base plate not only blocks the raw materials but also reduces the impact force. Furthermore, the discharge grooves on the surface of the distribution base plate disperse the raw materials as they fall, preventing them from landing in a fixed spot, reducing damage to the filter screen, and extending its service life.

[0020] 2. The device is equipped with a first sprocket and a second sprocket. When the device is working, the drive motor drives the extrusion cam to rotate, which pushes the support slide rod to drive the screening screen frame to slide horizontally, thereby screening the raw materials. At the same time, the rotation of the extrusion cam drives the first sprocket to rotate, and the first sprocket drives two second sprockets to rotate through the transmission chain, which facilitates the reduction of energy consumption through linkage.

[0021] 3. Equipped with feed pipes and crushing blades, the device operates by rotating a second sprocket, which in turn drives the lower crushing blades to rotate. This facilitates the initial crushing and dispersing of the raw materials, preventing large or lumpy pieces from clogging the filter screen. Furthermore, the two feed pipes increase the uniformity of the material's descent, preventing the filter screen from sinking in the center and improving the filtration efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the connection between the protective shell and the maintenance cover of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the connection between the drive motor and the extrusion cam of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the connection between the screening frame and the supporting slide rod of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the connection between the maintenance cover and the feed pipe of this utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of the connection between the second sprocket and the crushing blade of this utility model;

[0027] Figure 6 This is a three-dimensional structural diagram of the connection between the buffer partition and the material distribution base plate of this utility model.

[0028] In the diagram: 1. Protective outer shell; 2. Maintenance cover; 3. Collection box; 4. Feed pipe; 5. Drive motor; 6. Extrusion cam; 7. Screening frame; 8. Support slide bar; 9. First sprocket; 10. Second sprocket; 11. Crushing blade; 12. Buffer plate; 13. Distribution bottom plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-6 This utility model provides a technical solution: a vibrating screen for concrete processing, comprising a protective shell 1, a maintenance cover 2, a collection box 3, a feed pipe 4, a drive motor 5, a compression cam 6, a screening frame 7, a support slide bar 8, a first sprocket 9, a second sprocket 10, a crushing blade 11, a buffer plate 12, and a distribution bottom plate 13. The protective shell 1 has a groove on its upper surface, and the maintenance cover 2 is installed at the upper end of the protective shell 1. The lower front surface of the protective shell 1 has an opening, and the inner wall of the opening of the protective shell 1 is provided with a collection box 3. The protective shell 1 and the collection box 3 are slidably connected. Two feed pipes 4 are symmetrically arranged. The feed inlet of the feed pipe 4 is offset from the lower axis of the feed pipe 4. When using this device, the raw material is first introduced from the feed inlet of the feed pipe 4 so that the raw material can enter the screening frame 7 in the protective shell 1. The screened raw material enters the collection box 3. During operation, the drive motor 5 drives the extrusion cam 6 to rotate, so that the extrusion cam 6 can cyclically push the support slide rod 8, so that the support slide rod 8 drives the screening frame 7 to move horizontally back and forth to screen the raw material.

[0031] Two feed pipes 4 are installed through the upper surface of the maintenance cover 2. A drive motor 5 is fixedly connected to the side surface of the protective shell 1. A squeezing cam 6 is fixedly connected to the output end of the drive motor 5. A screening frame 7 is installed in the groove of the protective shell 1. Supporting slide rods 8 are fixedly connected to both ends of the screening frame 7. The axis of the output end of the drive motor 5 is set to correspond to the axis of the squeezing cam 6. The side surface of the squeezing cam 6 is in contact with the side surface of the supporting slide rod 8. The screening frame 7 is set with openings at the top and bottom. The screening frame 7 is slidably connected to the protective shell 1 through the supporting slide rod 8. A spring is connected between the supporting slide rod 8 and the protective shell 1. When the squeezing cam 6 rotates, it drives the first sprocket 9 to rotate. The first sprocket 9 drives the two second sprockets 10 to rotate through the transmission chain. The second sprockets 10 drive the crushing blades 11 at the lower end to rotate, so that the crushing blades 11 can crush and disperse the incoming raw materials, preventing the agglomerated raw materials from clogging the filter screen. At the same time, the two feed pipes 4 disperse the landing point of the raw materials, preventing the center of the filter screen from being impacted and dented.

[0032] A first sprocket 9 is fixedly connected to the upper end of the shaft of the extrusion cam 6. A second sprocket 10 is installed on the upper surface of the feed pipe 4, and a crushing blade 11 is provided on the inner wall of the cavity of the feed pipe 4. A transmission chain is installed between the outer surface of the first sprocket 9 and the outer surfaces of the two second sprockets 10. The shaft of the crushing blade 11 is fixedly connected to the shaft of the second sprocket 10, and both the crushing blade 11 and the second sprocket 10 are rotatably connected to the feed pipe 4. After the raw material falls from the feed pipe 4, it is guided by the annular buffer plate 12 so that the raw material falls on the surface of the distribution bottom plate 13, thereby buffering and preventing the raw material from directly impacting the filter screen and causing damage.

[0033] The inner wall of the screening frame 7 is equipped with a buffer distribution mechanism, which collects raw materials through a buffer partition 12 and distributes them evenly through a distribution base plate 13. The buffer distribution mechanism includes a buffer partition 12, which is fixedly connected to the inner wall of the screening frame 7. The inner wall of the buffer partition 12 is fixedly connected to the distribution base plate 13. The buffer partition 12 has a ring-shaped design, and the distribution base plate 13 has a conical design. The surface of the distribution base plate 13 has circumferentially distributed feeding slots, and the width of the feeding slots of the distribution base plate 13 increases from top to bottom. The conical distribution base plate 13 facilitates the even distribution of raw materials. Then, the feeding slots on the surface of the distribution base plate 13 allow the raw materials to fall, further dispersing the falling points of the raw materials, effectively increasing the uniformity of raw material filtration and preventing the filter screen from being deformed and damaged by impact.

[0034] Working principle: When using this concrete processing vibrating screen, the material is fed through the feed pipe 4 on the surface of the cover 2. The drive motor 5 drives the extrusion cam 6 to rotate, which pushes the support slide rod 8 to move the screening frame 7 to vibrate the screen. The extrusion cam 6 drives the first sprocket 9 to rotate, which in turn drives the second sprocket 10 and the crushing blade 11 to rotate through the transmission chain, which facilitates the dispersing of the raw material. The raw material is guided by the buffer plate 12 to the distribution bottom plate 13, and the conical distribution bottom plate 13 disperses the raw material as it falls, thus preventing the raw material from falling to a fixed point and protecting the filter screen of the screening frame 7. Finally, the raw material enters the collection box 3 for easy handling, which increases the overall practicality.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibrating screen for concrete processing, comprising a protective shell (1) having a groove on its upper surface, and a maintenance cover (2) installed on the upper end of the protective shell (1), wherein an opening is provided on the lower front surface of the protective shell (1), and a material collection box (3) is provided on the inner wall of the opening of the protective shell (1), characterized in that: The upper surface of the maintenance upper cover (2) is provided with two feeding pipes (4), the side surface of the protective shell (1) is fixedly connected with a driving motor (5), the output end of the driving motor (5) is fixedly connected with an extrusion cam (6), the recess of the protective shell (1) is provided with a screening net rack (7), both ends of the screening net rack (7) are fixedly connected with supporting slide rods (8), the rotating shaft upper end of the extrusion cam (6) is fixedly connected with a first chain wheel (9), the upper surface of the feeding pipe (4) is provided with a second chain wheel (10), the inner wall of the feeding pipe (4) cavity is provided with a crushing blade (11), the inner wall of the screening net rack (7) is provided with a buffer distributing mechanism, which collects raw materials through a buffer partition plate (12) and buffers and divides the raw materials through a distributing bottom plate (13).

2. The vibratory screen for processing concrete according to claim 1, characterized in that: The protective shell (1) and the collecting box (3) are in sliding connection, the two feeding pipes (4) are symmetrically arranged, and the feeding port of the feeding pipe (4) is arranged in dislocation with the lower end axis of the feeding pipe (4).

3. The vibratory screen for processing concrete according to claim 1, wherein: The axis of the output end of the driving motor (5) corresponds to the axis of the extrusion cam (6), and the side surface of the extrusion cam (6) is in close contact with the side surface of the supporting slide rod (8).

4. The vibratory screen for processing concrete according to claim 1, wherein: The screening net rack (7) is provided with an upper opening and a lower opening, and the screening net rack (7) is in sliding connection with the protective shell (1) through the supporting slide rod (8), and the supporting slide rod (8) and the protective shell (1) are connected with a spring.

5. The vibratory screen for processing concrete according to claim 1, wherein: The outer surface of the first chain wheel (9) and the outer surface of the two second chain wheels (10) are provided with a transmission chain, the rotating shaft of the crushing blade (11) is fixedly connected with the rotating shaft of the second chain wheel (10), and the crushing blade (11) and the second chain wheel (10) are in rotary connection with the feeding pipe (4).

6. The vibratory screen for processing concrete according to claim 1, wherein: The buffer distributing mechanism comprises a buffer partition plate (12) fixedly connected to the inner wall of the screening net rack (7), and the inner wall of the buffer partition plate (12) is fixedly connected with a distributing bottom plate (13).

7. A vibrating screen for processing concrete according to claim 6, characterized in that: The buffer partition plate (12) is annular, the distributing bottom plate (13) is conical, and the surface of the distributing bottom plate (13) is circumferentially provided with a discharging slot, and the width of the discharging slot of the distributing bottom plate (13) increases from top to bottom.

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