A material screening device and a complete set of concrete mixing equipment

Abstract

The first aspect of the present invention provides a material screening device including: a screening mechanism and a housing; the screening mechanism rotates around a rotating shaft, including a plurality of telescopic units and an adjusting unit, wherein the plurality of telescopic units form a closed ring; wherein the telescopic unit is composed of at least two screens, and the two screens can move in a radial direction relative to the telescopic rotating shaft under the drive of the adjusting unit, so that the screen holes of the two screens overlap or partially overlap; the screening mechanism is arranged in the housing, and at least one discharge port is arranged below the housing. In another aspect, a complete set of concrete mixing equipment is also provided, including any of the above-mentioned material screening devices. The relative position of the telescopic unit and the rotating shaft in the radial direction is adjusted by the adjusting unit, so that the first screen and the second screen can move relative to each other, thereby adjusting the size of the screen holes, and thus adapting to the screening of materials of different particle sizes. It can be well applied in the narrow working environment of the city to reduce the floor space.

Description

Technical Field

[0001] The invention relates to the field of building construction, and in particular to a material screening device and a complete set of concrete mixing equipment. Background Art

[0002] In the field of construction, materials of different particle sizes need to be mixed, so material screening equipment of different specifications is needed. However, the construction site in the city cannot provide enough space for placing equipment, so a screening equipment that can screen materials of different sizes is needed. Summary of the invention

[0003] The purpose of the present invention is to provide a screening device which can screen materials of different sizes, thereby solving the adaptability of screening materials of different particle sizes during urban construction.

[0004] In order to solve the above problems, the first aspect of the present invention provides a material screening device, including: a screening mechanism and a shell; the screening mechanism rotates around the rotating axis, including a plurality of telescopic units and an adjusting unit, and the plurality of telescopic units form a closed ring; wherein the telescopic unit is composed of at least two screens, and the two screens can move in a radial direction relative to the telescopic rotating axis under the drive of the adjusting unit, so that the screen holes of the two screens overlap or partially overlap; the screening mechanism is arranged in the shell, and at least one discharge port is arranged below the shell. The material to be screened enters the telescopic unit.

[0005] Furthermore, the screens of several telescopic units in the above-mentioned material screening equipment are arranged into a regular polygon.

[0006] Furthermore, the telescopic unit in the above-mentioned material screening equipment includes a first screen and a second screen; the first screen and the second screen are arranged in close proximity and can move relative to each other.

[0007] Furthermore, the adjusting unit in the above-mentioned material screening equipment can drive the radial distance of the corresponding telescopic unit relative to the rotating axis.

[0008] Furthermore, the adjustment unit in the above-mentioned material screening equipment is a hydraulic cylinder or a spring arranged in the radial direction.

[0009] According to another aspect of the present invention, there is also provided a complete set of concrete mixing equipment, comprising any one of the above-mentioned material screening equipment.

[0010] The relative position of the telescopic unit and the rotating shaft in the radial direction is adjusted by the adjustment unit, so that the first screen and the second screen can move relative to each other, thereby adjusting the size of the screen hole to adapt to the screening of materials with different particle sizes. It can be well used in the narrow working environment in the city to reduce the floor space. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram according to a first embodiment of the present invention;

[0012] Figure 2 for Figure 1 The view of A in the first state;

[0013] Figure 3 for Figure 1 A is the view in the second state;

[0014] Figure 4 is a cross-sectional view of a telescopic unit according to a first embodiment of the present invention;

[0015] Figure 5 is a schematic diagram of a complete set of concrete mixing equipment according to a second embodiment of the present invention;

[0016] Figure 6 for Figure 5 Center B view.

[0017] Reference numerals:

[0018] 1: Screening mechanism;

[0019] 11: telescopic unit;

[0020] 111: first screen;

[0021] 112: second screen;

[0022] 12: Adjustment unit;

[0023] 2: Shell;

[0024] 21: discharge port;

[0025] 22: Feed inlet. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0027] refer to Figure 1, the following is an embodiment of the material screening device shown in the present invention, which includes a screening mechanism 1 and a housing 2, wherein the screening mechanism 1 is arranged in the housing 2, at least one discharge port 21 is arranged at the bottom of the housing 2, and at least one feed port 22 is arranged at the top for discharging the material after screening. The screening mechanism 1 includes a plurality of telescopic units 11 and an adjustment unit 12. In this embodiment, there are a total of 8 telescopic units 11. The 8 telescopic units 11 in this embodiment are arranged in a regular octagon to form a closed ring. They can also be arranged according to actual conditions. Specifically, the telescopic unit 11 includes a first screen 111 and a second screen 112. Refer to Figure 2 , Figure 3 and Figure 4 When the adjusting unit 2 starts to drive the telescopic unit 11, the first screen 111 and the second screen 112 can move relative to each other (such as Figure 4 As shown), the transition from the first state to the second state occurs, at which time the sizes of the sieve holes on the first sieve 111 and the second sieve 112 change (see Figure 2 and Figure 3 ), that is, the telescopic unit 11 begins to telescope under the action of the adjusting unit 2, so that the meshes on the two screens overlap or partially overlap (such as Figure 2 and Figure 3 As shown), the mesh size of the screen on the telescopic unit 12 can be adjusted to meet the screening requirements of different particle sizes.

[0028] Meanwhile, the adjustment unit 12 can be a hydraulic cylinder or a spring. If it is a hydraulic cylinder, the position of the telescopic unit 11 relative to the rotating axis in the radial direction can be adjusted by the extension and contraction of the hydraulic cylinder; if it is a spring, the rotation speed of the screening mechanism 1 can be adjusted to generate centripetal forces of different magnitudes, so that the position of the telescopic unit 11 relative to the rotating axis in the radial direction can move.

[0029] In the working state, the material to be screened enters from the feed port 22 and then falls into the screening mechanism 1. At this time, the screening mechanism 1 rotates, and the material to be screened falls to the lower part of the screening unit 11, and then the screening is completed from the sieve holes of the screening unit 11. The material that does not meet the screening conditions waits for the next screening. After completing this step of screening, the telescopic unit 11 can be adjusted by the adjustment unit 12, and then the relative position of the first screen 111 and the second screen 112 is changed, thereby adjusting the size of the sieve hole. At this time, the size of the sieve hole can be increased, thereby increasing the adaptability to different materials, and the screening operation of materials of different particle sizes can be completed by only one set of equipment. Since the first screen 111 and the second screen 112 can move relative to each other, it is also possible to clean the materials adhering to the first screen 111 and the second screen 112 (such as powdered materials in a high humidity environment), so that the sieve holes can be cleaned in time, and the materials will not accumulate and cause normal screening.

[0030] In addition, the present invention also provides a complete set of concrete mixing equipment, including the material screening equipment as described above. The material is transported from the belt conveyor into the material screening equipment for screening, and the relative position of the telescopic unit and the rotating shaft in the radial direction is adjusted by the adjustment unit, so that the first screen and the second screen can move relative to each other, thereby adjusting the size of the screen hole, and then adapting to the screening of materials with different particle sizes, which can be well applied in the narrow working environment of the city to reduce the occupied area.

[0031] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A material screening device, characterized in that: include: Screening mechanism and housing; The screening mechanism rotates around a rotating shaft and includes a plurality of telescopic units and an adjusting unit, wherein the plurality of telescopic units form a closed ring; The screens of the plurality of telescopic units are arranged into a regular polygon; The telescopic unit comprises a first screen and a second screen; The first screen and the second screen are arranged in close contact and can move relative to each other; The first screen and the second screen can move in a radial direction relative to the telescopic rotating shaft under the drive of the adjustment unit, so that the meshes of the two screens overlap or partially overlap, thereby adjusting the mesh size of the screen on the telescopic unit; The screening mechanism is arranged in the shell, and at least one discharge port is arranged below the shell; The adjusting unit can drive a radial distance of the corresponding telescopic unit relative to the rotation axis.

2. The material screening equipment according to claim 1, characterized in that: The adjustment unit is a hydraulic cylinder or a spring arranged in a radial direction.

3. A complete set of concrete mixing equipment, characterized in that: Comprising the material screening equipment as described in claim 1 or 2.

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