Movable screening machine

Abstract

The utility model provides a movable screening machine. The screening machine comprises a walking mechanism, a frame assembly, a vibrating screen, a first hydraulic mechanism, a second hydraulic mechanism, a main conveying belt, a feeding assembly and a discharging mechanism, the frame assembly is fixedly arranged on the walking mechanism, the vibrating screen is hinged to the frame assembly through the first hydraulic mechanism, and the main conveying belt is hinged to the vibrating screen through the second hydraulic mechanism. The feeding assembly is connected with the frame assembly and located above the main conveying belt, and the discharging mechanism is movably connected with the frame assembly. Walking, screening and conveying are integrated, the application range is wider, the using mode is more flexible, most of the mechanisms can be adjusted through a hydraulic mechanism and folded, the whole machine transportation size is reduced, transportation is convenient, and the transition flexibility is improved. The working angle of the vibrating screen can be adjusted according to actual materials on site, so that the screening flexibility and adaptability are higher, the processing capacity of the vibrating screen is improved, and the screening efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of screening machine technology, specifically to a mobile screening machine. Background Technology

[0002] Screening machines are widely used in various crushing and screening processes, such as screening materials in quarries and mines, and screening aggregates in asphalt and concrete mixing plants; screening construction and demolition waste, such as the recycling of house demolition and road concrete; screening of river pebbles, Gobi sand and gravel, coal mines, topsoil and other industries, etc.

[0003] Traditional stationary vibrating screens have a long history, simple structure, reliable operation, and easy maintenance, and are widely used in many sectors such as mining, metallurgy, highways, railways, and water conservancy. However, their inherent defects make them unable to meet the needs of diverse working environments. They cannot be moved quickly and conveniently, and each installation and use requires driving piles and building a platform, making installation and use complex, inefficient, costly, and generating significant secondary pollution (such as noise and dust). When processing urban construction waste, they have a serious impact on the urban environment. Once installed and fixed, they can only be used in their original location. If problems arise later, such as insufficient production area, changes in production site, or transportation and loading, it is very difficult to move them for reuse. It requires dismantling the equipment and rebuilding the platform, which is costly, time-consuming, and labor-intensive. Therefore, the traditional stationary screening machine has very low practical value.

[0004] Existing screening machines generally rely on mobile equipment for transportation, resulting in poor adaptability and inconvenience in relocation. The working process primarily involves lifting and conveying the stone material through a conveyor system to a vibrating screen. After vibration through three layers of screens, the four sizes of stone are respectively conveyed to four discharge conveying mechanisms. This means that materials corresponding to the required particle size are output by the corresponding conveyor, achieving accurate material screening and fulfilling production objectives. However, to facilitate movement and relocation, existing screening machines have simplified their structure, significantly reducing their functionality.

[0005] The disadvantages of the above-mentioned prior art are:

[0006] 1. Poor integration, lack of independent walking mechanism, requires transportation equipment for transport, resulting in poor flexibility in site relocation;

[0007] 2. The vibrating screen cannot adjust its working angle, which cannot meet the screening requirements of different working conditions or different stone materials, resulting in insufficient screening flexibility and adaptability, and poor screening efficiency.

[0008] 3. The mechanisms in the screening machine are all fixed, and their positions cannot be flexibly adjusted. They occupy too much space and increase the difficulty and cost of transportation. Utility Model Content

[0009] The purpose of this utility model is to provide a mobile screening machine. By integrating walking, screening, and conveying into one unit, it has a wider range of applications and more flexible usage. Furthermore, most mechanisms can be adjusted and folded via hydraulic mechanisms, reducing the overall transport volume, facilitating transportation, and improving relocation flexibility. The vibrating screen's installation structure is designed for multi-angle placement, allowing adjustment of the working angle according to the actual materials on site, resulting in greater screening flexibility and adaptability, increased processing capacity, and higher screening efficiency. The overall equipment meets the requirements of convenient construction, reliable operation, safety and environmental protection, convenient transportation, and flexible relocation.

[0010] To achieve the above objectives, the present invention proposes the following technical solution:

[0011] A mobile screening machine includes a traveling mechanism, a frame assembly, a vibrating screen, a first hydraulic mechanism, a second hydraulic mechanism, a main conveyor belt, a feeding assembly, and a discharge mechanism.

[0012] The frame assembly is fixedly mounted on the running gear;

[0013] The vibrating screen is hinged to the vehicle frame assembly;

[0014] One end of the first hydraulic mechanism is hinged to the vibrating screen, and the other end is hinged to the vehicle frame assembly;

[0015] One end of the second hydraulic mechanism is hinged to the vibrating screen, and the other end is hinged to the main conveyor belt;

[0016] The main conveyor belt is located above the vibrating screen, and the end of the main conveyor belt away from the second hydraulic mechanism is hinged to the frame assembly;

[0017] The feeding assembly is connected to the chassis assembly and is located above the main conveyor belt;

[0018] The discharge mechanism is movably connected to the chassis assembly.

[0019] Preferably, the walking mechanism includes a fixed frame and tracks, with two tracks respectively fixedly mounted on both sides of the fixed frame.

[0020] Preferably, the first hydraulic mechanism includes a first telescopic bracket and a first hydraulic cylinder. One end of the first telescopic bracket is hinged to the vehicle frame assembly, and the other end of the first telescopic bracket is hinged to the vibrating screen. The first hydraulic cylinder is located below the first telescopic bracket, with its fixed end hinged to the vehicle frame assembly and its movable end connected to the first telescopic bracket.

[0021] Preferably, the first telescopic bracket includes a first fixed section and a first movable section. One end of the first fixed section is hinged to the vehicle frame assembly, and the other end is sleeved in the first movable section. The first movable section is movably connected to the first fixed section. The end of the first movable section away from the first fixed section is hinged to the vibrating screen. The movable end of the first hydraulic cylinder is connected to the first movable section.

[0022] Preferably, the first fixed section has a plurality of spaced first limiting holes along the axial direction, and the first movable section has a plurality of second limiting holes corresponding to the first limiting holes along the axial direction.

[0023] Preferably, the second hydraulic mechanism includes a second telescopic bracket and a second hydraulic cylinder. The second telescopic bracket includes a second fixed section and a second movable section. One end of the second fixed section is connected to the vibrating screen, and the other end of the second fixed section is sleeved inside the second movable section. The second fixed section and the second movable section are movably connected. The end of the second movable section away from the second fixed section is connected to the main conveyor belt. The fixed end of the second hydraulic cylinder is connected to the second fixed section, and the movable end of the second hydraulic cylinder is connected to the second movable section.

[0024] Preferably, the discharge mechanism includes a top conveyor belt, a middle conveyor belt, a bottom conveyor belt, and a powder belt. One end of the top conveyor belt, the middle conveyor belt, the bottom conveyor belt, and the powder belt are respectively hinged to the frame assembly. The end of the powder belt away from the frame assembly is connected to the vibrating screen through a third hydraulic mechanism, and the powder belt is located below the vibrating screen.

[0025] Preferably, the third hydraulic mechanism includes a third telescopic bracket and a third hydraulic cylinder. The third telescopic bracket includes a third fixed section and a third movable section. One end of the third fixed section is connected to the vibrating screen, and the other end is sleeved on the third movable section. The third fixed section and the third movable section are movably connected. The end of the third movable section away from the third fixed section is connected to the powder belt. The fixed end of the third hydraulic cylinder is connected to the vibrating screen, and the movable end of the third hydraulic cylinder is connected to the material distribution belt.

[0026] Beneficial effects:

[0027] (1) This utility model integrates walking, screening, and conveying into one unit, making it more applicable and flexible in use. Moreover, most of the mechanisms can be adjusted and folded through hydraulic mechanisms, reducing the overall transport volume, facilitating transportation, and improving the flexibility of relocation.

[0028] (2) The installation structure of the vibrating screen is set to be placed at multiple angles. The working angle of the vibrating screen can be adjusted according to the actual material on site, which makes the screening more flexible and adaptable, the processing capacity of the vibrating screen is increased, and the screening efficiency is higher.

[0029] (3) The equipment as a whole meets the requirements of convenient construction, reliable operation, safety and environmental protection, convenient transportation and flexible relocation.

[0030] It should be understood that all combinations of the foregoing concepts and the additional concepts described in more detail below can be considered as part of the utility model subject matter of this disclosure, provided that such concepts do not contradict each other.

[0031] The foregoing and other aspects, embodiments, and features of the present invention will be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as features and / or beneficial effects of exemplary embodiments, will become apparent from the following description or may be learned through practice of specific embodiments according to the teachings of the present invention. Attached Figure Description

[0032] The accompanying drawings are not drawn to scale according to a true reference numeral. In the drawings, each identical or nearly identical component shown in the various figures can be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein:

[0033] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0034] Figure 2 This is a side view of the present invention;

[0035] Figure 3 This is a schematic diagram of the structure of the first hydraulic mechanism of this utility model;

[0036] Figure 4 This is a schematic diagram of the structure of the second hydraulic mechanism of this utility model;

[0037] Figure 5 This is a schematic diagram of the third hydraulic mechanism of this utility model;

[0038] Figure 6 This is a diagram showing the operating state of the vibrating screen of this utility model;

[0039] 1. Walking mechanism; 2. Chassis assembly; 3. Vibrating screen; 4. First hydraulic mechanism; 5. Second hydraulic mechanism; 6. Main conveyor belt; 7. Feeding assembly; 8. Discharge mechanism; 9. Third hydraulic mechanism; 10. Grid screen type grate screen; 101. Fixed frame; 102. Track; 41. First telescopic support; 42. First hydraulic cylinder; 43. First limiting hole; 44. Second limiting hole; 51. Second telescopic support; 52. Second hydraulic cylinder; 53. Second connecting frame; 81. Top layer conveyor belt; 82. Middle layer conveyor belt; 83. Bottom layer conveyor belt; 84. Powder belt; 91. Third telescopic support; 92. Third hydraulic cylinder; 93. Third connecting frame. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this utility model pertains.

[0041] The terms "first," "second," and similar words used in this utility model patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "an," "a," or "the," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding "comprising" encompasses the features, integrals, steps, operations, elements, and / or components listed following "comprising" or "including," and do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] like Figure 1-6As shown, this utility model discloses a mobile screening machine, including a traveling mechanism 1, a frame assembly 2, a vibrating screen 3, a first hydraulic mechanism 4, a second hydraulic mechanism 5, a main conveyor belt 6, a feeding assembly 7, and a discharge mechanism 8. The traveling mechanism 1 includes a fixed frame 101 and tracks 102. Two tracks 102 are provided, respectively fixedly mounted on both sides of the fixed frame 101. The tracks 102 are driven by a drive wheel and are flexible chain links surrounding the drive wheel, load-bearing wheel, idler wheel, and support wheel. The tracks 102 can improve adhesion to the ground. The frame assembly 2 is fixedly mounted on the fixed frame 101, and the frame assembly 2 serves as a support platform to provide support for the various components.

[0043] A vibrating screen 3 is positioned at the front end of the frame assembly 2. One end of the vibrating screen 3 is hinged to the frame assembly 2, allowing the vibrating screen 3 to move around the hinge point with the frame assembly 2. The lower middle section of the vibrating screen 3 is connected to the frame assembly 2 via a first hydraulic mechanism 4. The first hydraulic mechanism 4 includes a first telescopic bracket 41 and a first hydraulic cylinder 42. The first telescopic bracket 41 includes a first fixed section and a first movable section. One end of the first fixed section is hinged to the front end of the frame assembly 2, and the other end is fitted inside the first movable section. The first movable section is movably connected to the first fixed section. The end of the first movable section away from the first fixed section is hinged to the lower middle section of the vibrating screen 3. The first hydraulic cylinder 42 is positioned below the first telescopic bracket 41. The fixed end of the first hydraulic cylinder 42 is hinged to the front end of the frame assembly 2, and the movable end of the first hydraulic cylinder 42 is connected to the first movable section via a first connecting frame. The first connecting frame is fixedly connected to the first movable section, and the movable end of the first hydraulic cylinder 42 is hinged to the first connecting frame. The first movable section is driven by the first hydraulic cylinder 42, so that the first movable section can move relative to the first fixed section. The first movable section drives the vibrating screen 3 to move, so that the vibrating screen 3 can rotate around the hinge point with the frame assembly 2, thereby realizing the adjustment of the angle of the vibrating screen 3.

[0044] Furthermore, to make the vibrating screen 3 more stable at a certain angle, in this embodiment, a plurality of spaced first limiting holes 43 are provided on the first fixed section along the axial direction. A plurality of spaced second limiting holes 44 are provided on the first movable section along the axial direction. The first limiting holes 43 and the second limiting holes 44 cooperate with each other. When the vibrating screen 3 is adjusted to a certain angle, the first limiting holes 43 and the second limiting holes 44 overlap. The fixing pin is then inserted into the second limiting holes 44 and the first limiting holes 43 in sequence, thereby fixing the first movable section and the first fixed section. This prevents the first movable section from moving relative to the first fixed section, thus keeping the vibrating screen 3 stable at a certain angle.

[0045] One end of the main conveyor belt 6 is located above the vibrating screen 3, and the other end is located below the feeding assembly 7. The end of the main conveyor belt 6 above the vibrating screen 3 is connected to the vibrating screen 3 via a second hydraulic mechanism 5. The second hydraulic mechanism 5 includes a second telescopic bracket 51 and a second hydraulic cylinder 52. The second telescopic bracket 51 includes a second fixed section and a second movable section. One end of the second fixed section is connected to the vibrating screen 3, and the other end of the second fixed section is fitted inside the second movable section. The second fixed section and the second movable section are movably connected, and the second movable section can move relative to the second fixed section. The end of the second movable section away from the second fixed section is connected to the main conveyor belt 6 via a second connecting frame 53. One end of the second connecting frame 53 is hinged to the second movable section, and the other end of the second connecting frame 53 is fixedly connected to the main conveyor belt 6. The second hydraulic cylinder 52 is located on one side of the second telescopic bracket 51. The fixed end of the second hydraulic cylinder 52 is hinged to the second fixed section, and the movable end of the second hydraulic cylinder 52 is hinged to the second movable section. The end of the main conveyor belt 6 away from the vibrating screen 3 is hinged to the frame assembly 2. The main conveyor belt 6 transports the material discharged from the feeding assembly 7 to above the vibrating screen 3, where it is fed into the vibrating screen 3 by the feed hopper connected to the main conveyor belt 6 for screening. One end of the main conveyor belt 6 is hinged to the frame assembly 2, and the other end is connected to the vibrating screen 3, allowing the main conveyor belt 6 to rotate at the same angle as the vibrating screen 3, thus cooperating with the vibrating screen 3. Furthermore, the second hydraulic mechanism 5 can further adjust the distance between the vibrating screen 3 and the main conveyor belt 6, improving flexibility.

[0046] The feeding assembly 7 is fixedly installed at the rear end of the frame assembly 2. The feeding assembly 7 is equipped with a grid screen 10, which is used to screen large-diameter materials and prevent them from entering the feeding assembly 7. The discharge port of the feeding assembly 7 is located above the end of the main conveyor belt 6. The material discharged from the feeding assembly 7 is transported to the vibrating screen 3 via the main conveyor belt 6.

[0047] The discharge mechanism 8 includes a top conveyor belt 81, a middle conveyor belt 82, a bottom conveyor belt 83, and a powder belt 84. One end of each of the top, middle, and bottom conveyor belts 81, 82, 83, and 84 is hinged to the frame assembly 2. The top and bottom conveyor belts 81 and 83 are located on the right side of the vibrating screen 3, and the middle conveyor belt 82 is located on the left side. The vibrating screen 3 is equipped with a top discharge hopper, a middle discharge hopper, and a bottom discharge hopper. The top, middle, and bottom discharge hoppers are arranged sequentially from top to bottom, and the particle size of the material discharged by the top, middle, and bottom discharge hoppers decreases sequentially. The top discharge hopper is located above the top conveyor belt 81, the middle discharge hopper is located above the middle conveyor belt 82, and the bottom discharge hopper is located above the bottom conveyor belt 83. Materials discharged from the top hopper are transported by the top conveyor belt 81, materials discharged from the middle hopper are transported by the middle conveyor belt 82, and materials discharged from the bottom hopper are transported by the bottom conveyor belt 83. The top conveyor belt 81, the middle conveyor belt 82, and the bottom conveyor belt 83 are hinged to the frame assembly 2, allowing them to move relative to the frame assembly 2. When not in operation, the top conveyor belt 81, the middle conveyor belt 82, and the bottom conveyor belt 83 can be folded for easy transportation and to reduce space occupation.

[0048] The powder belt 84 is located below the vibrating screen 3. The end of the powder belt 84 furthest from the frame assembly 2 is connected to the vibrating screen 3 via a third hydraulic mechanism 9. The third hydraulic mechanism 9 includes a third telescopic bracket 91 and a third hydraulic cylinder 92. The third telescopic bracket 91 includes a third fixed section and a third movable section. One end of the third fixed section is hinged to the vibrating screen 3, and the other end is fitted onto the third movable section, with the third fixed section and the third movable section being movably connected. The end of the third movable section furthest from the third fixed section is connected to the powder belt 84 via a third connecting frame 93. The third connecting frame 93 is hinged to the third movable section and fixedly connected to the powder belt 84. The third hydraulic cylinder 92 is located on one side of the third telescopic bracket 91. The fixed end of the third hydraulic cylinder 92 is hinged to the vibrating screen 3, and the movable end of the third hydraulic cylinder 92 is hinged to the third connecting bracket. One end of the powder belt 84 is hinged to the frame assembly 2, and the other end is connected to the vibrating screen 3, so that when the vibrating screen 3 rotates, the powder belt 84 can also rotate at a corresponding angle, cooperating with the vibrating screen 3. Furthermore, the third hydraulic mechanism 9 can further adjust the distance between the vibrating screen 3 and the powder belt 84, improving flexibility.

[0049] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A mobile screening machine, characterized in that, It includes a walking mechanism, a frame assembly, a vibrating screen, a first hydraulic mechanism, a second hydraulic mechanism, a main conveyor belt, a feeding assembly, and a discharge mechanism; The frame assembly is fixedly mounted on the running gear; The vibrating screen is hinged to the vehicle frame assembly; One end of the first hydraulic mechanism is hinged to the vibrating screen, and the other end is hinged to the vehicle frame assembly; One end of the second hydraulic mechanism is hinged to the vibrating screen, and the other end is hinged to the main conveyor belt; The main conveyor belt is located above the vibrating screen, and the end of the main conveyor belt away from the second hydraulic mechanism is hinged to the frame assembly; The feeding assembly is connected to the chassis assembly and is located above the main conveyor belt; The discharge mechanism is movably connected to the chassis assembly.

2. The mobile screening machine according to claim 1, characterized in that, The walking mechanism includes a fixed frame and tracks, with two tracks respectively fixedly mounted on both sides of the fixed frame.

3. The mobile screening machine according to claim 1, characterized in that, The first hydraulic mechanism includes a first telescopic bracket and a first hydraulic cylinder. One end of the first telescopic bracket is hinged to the vehicle frame assembly, and the other end of the first telescopic bracket is hinged to the vibrating screen. The first hydraulic cylinder is located below the first telescopic bracket. The fixed end of the first hydraulic cylinder is hinged to the vehicle frame assembly, and the movable end of the first hydraulic cylinder is connected to the first telescopic bracket.

4. The mobile screening machine according to claim 3, characterized in that, The first telescopic support includes a first fixed section and a first movable section. One end of the first fixed section is hinged to the vehicle frame assembly, and the other end is sleeved in the first movable section. The first movable section is movably connected to the first fixed section. The end of the first movable section away from the first fixed section is hinged to the vibrating screen. The movable end of the first hydraulic cylinder is connected to the first movable section.

5. The mobile screening machine according to claim 4, characterized in that, The first fixed section has a plurality of first limiting holes spaced apart along the axial direction, and the first movable section has a plurality of second limiting holes corresponding to the first limiting holes along the axial direction.

6. The mobile screening machine according to claim 1, characterized in that, The second hydraulic mechanism includes a second telescopic bracket and a second hydraulic cylinder. The second telescopic bracket includes a second fixed section and a second movable section. One end of the second fixed section is connected to the vibrating screen, and the other end of the second fixed section is sleeved inside the second movable section. The second fixed section and the second movable section are movably connected. The end of the second movable section away from the second fixed section is connected to the main conveyor belt. The fixed end of the second hydraulic cylinder is connected to the second fixed section, and the movable end of the second hydraulic cylinder is connected to the second movable section.

7. The mobile screening machine according to claim 1, characterized in that, The discharge mechanism includes a top layer conveyor belt, a middle layer conveyor belt, a bottom layer conveyor belt, and a powder belt. One end of each of the top layer conveyor belt, the middle layer conveyor belt, the bottom layer conveyor belt, and the powder belt is hinged to the frame assembly. The end of the powder belt away from the frame assembly is connected to the vibrating screen through a third hydraulic mechanism, and the powder belt is located below the vibrating screen.

8. The mobile screening machine according to claim 7, characterized in that, The third hydraulic mechanism includes a third telescopic bracket and a third hydraulic cylinder. The third telescopic bracket includes a third fixed section and a third movable section. One end of the third fixed section is connected to the vibrating screen, and the other end is sleeved on the third movable section. The third fixed section and the third movable section are movably connected. The end of the third movable section away from the third fixed section is connected to the powder belt. The fixed end of the third hydraulic cylinder is connected to the vibrating screen, and the movable end of the third hydraulic cylinder is connected to the powder belt.

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