Filling material screening and weighing device

Abstract

The utility model discloses a filling material screening and weighing device which comprises a base, a weighing mechanism, a bearing table and a screen box with the top open, the weighing mechanism is arranged on the base, the bearing table is arranged on the weighing mechanism, the screen box is arranged on the bearing table in a shaking mode, a driving mechanism used for driving the screen box to shake is arranged on the bearing table, and the screen box is arranged on the bearing table. A plurality of drawer sieves which are arranged at intervals up and down are arranged in the sieve box, the drawer sieves are communicated up and down and can be drawn out from the front side of the sieve box, and a material receiving box is arranged below the drawer sieve on the lowest layer of the sieve box. The filling material screening and weighing device is convenient to draw out and take materials, working efficiency is improved, and operation is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of screening and testing equipment technology, specifically to a screening and weighing device for fill material. Background Technology

[0002] Currently, the gradation testing of fill material (>40cm) during rockfill dam construction is mainly conducted manually, which is very inefficient. For fill material with a large gradation testing volume and a maximum particle size of 750mm, screening is difficult. Relying solely on manual screening would consume a large amount of manpower and affect the project progress.

[0003] A Chinese Library Classification Patent Document (application number 202110011451.5) discloses an abrasive debris grading and screening device, including a base and screening boxes. Multiple screening boxes are provided, and a shaking structure is installed between the base and the screening boxes. The screening boxes are connected to the shaking structure via a connecting structure. The shaking structure includes a lower bevel gear, a half-bevel gear, and a drive rod. The drive rod is rotatably connected within the base, and a half-bevel gear is fixedly connected to the drive rod. The lower bevel gear and the half-bevel gear are meshed and connected. A threaded slider is threadedly connected to the drive rod, and a sliding slider is slidably connected to the drive rod. A connecting spring is fixedly connected between the threaded slider and the sliding slider. This abrasive debris grading and screening device has the following shortcomings:

[0004] 1) The screening box is fixed to the connecting rod by a fixing pin, which makes it inconvenient to pick up materials and is not conducive to improving work efficiency;

[0005] 2) No weighing mechanism is installed, making weighing inconvenient;

[0006] 3) The material handling structure is complex and the manufacturing cost is high. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a filling material screening and weighing device that is easy to extract and pick up materials, improves work efficiency, and is easy to operate.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A material screening and weighing device includes a base, a weighing mechanism, a support platform, and a screen box with an open top. The weighing mechanism is mounted on the base, the support platform is mounted on the weighing mechanism, and the screen box is swayably mounted on the support platform. The support platform is provided with a driving mechanism for driving the screen box to sway. The screen box is provided with multiple drawer screens arranged vertically at intervals. Each drawer screen is vertically connected and can be pulled out from the front side of the screen box. The screen box is provided with a receiving box below the lowest drawer screen.

[0010] As a further improvement to the above technical solution:

[0011] The sieve box is provided with multiple receiving slots with front openings. Each receiving slot is arranged vertically at intervals. The receiving box and each drawer sieve are inserted into each receiving slot in a corresponding manner.

[0012] The driving mechanism includes two sets of telescopic components. Mounting frames are provided on both sides of the support platform. One end of each set of telescopic components is located on the mounting frames on both sides of the support platform, and the other end is connected to both sides of the screen box.

[0013] The telescopic component is hinged to the sieve box.

[0014] The bottom of the screen box is equipped with casters, which are supported on a support platform.

[0015] The axial direction of the movable wheel is perpendicular to the extension and retraction direction of the telescopic component.

[0016] The drawer sieve includes a square frame and a sieve mesh located at the bottom of the square frame, and a handle is provided on the front side of the square frame.

[0017] The sieve box is equipped with a locking mechanism for locking the drawer sieve.

[0018] The locking mechanism includes multiple locking pins on the sieve box, each locking pin corresponding to and locking onto each drawer sieve.

[0019] The locking mechanism includes a locking rod and a locking element. A hook is provided on the top of the front side of the sieve box, and a hook is provided at the top of the locking rod. The hook is hung on the hook, and the bottom of the locking rod is locked to the sieve box by the locking element. The locking rod is limited to the front side of each drawer sieve.

[0020] Compared with the prior art, the advantages of this utility model are:

[0021] This utility model discloses a fill material screening and weighing device. During a fill material gradation test, the fill material is poured through an open opening at the top of the screen box onto the uppermost drawer screen. A drive mechanism then drives the screen box to shake, achieving fill material screening. After screening, the drawer screens are sequentially pulled out from top to bottom to empty the fill material inside. After each drawer screen is pulled out, it is weighed by a weighing mechanism, and the weight value is recorded. The recorded weight values ​​are used to plot the fill material gradation curve, thereby testing the quality of the fill material. This fill material screening and weighing device offers several advantages. First, the drawer screens are conveniently located within the screen box, facilitating easy removal and improving work efficiency. Second, the screen box is supported by a weighing mechanism, simplifying weighing and avoiding the tedious process of individually removing and weighing each screen, thus enhancing operational convenience. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the filling material screening and weighing device of this utility model.

[0023] Figure 2 This is a schematic diagram of the drawer screen of the filling material screening and weighing device of this utility model.

[0024] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the filling material screening and weighing device of this utility model.

[0025] The labels in the diagram represent:

[0026] 1. Base; 2. Weighing mechanism; 3. Support platform; 31. Mounting frame; 4. Screen box; 41. Receiving trough; 42. Casters; 5. Drive mechanism; 51. Telescopic component; 6. Drawer screen; 61. Square frame; 62. Screen mesh; 63. Handle; 7. Receiving box; 8. Locking mechanism; 81. Locking rod; 811. Hook; 82. Locking component; 9. Hook. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Example 1:

[0032] Figure 1 and Figure 2 This invention illustrates an embodiment of the fill material screening and weighing device. The fill material screening and weighing device of this embodiment includes a base 1, a weighing mechanism 2, a support platform 3, and a screen box 4 with an open top. The weighing mechanism 2 is mounted on the base 1, the support platform 3 is mounted on the weighing mechanism 2, and the screen box 4 is swayably mounted on the support platform 3. The support platform 3 is provided with a driving mechanism 5 for driving the screen box 4 to sway. The screen box 4 is provided with a plurality of drawer screens 6 arranged vertically at intervals. Each drawer screen 6 is vertically connected and can be pulled out from the front side of the screen box 4. The screen box 4 is provided with a receiving box 7 below the lowest drawer screen 6.

[0033] When conducting a fill material gradation test: The fill material taken for the test is poured through the open opening at the top of the sieve box 4 onto the uppermost drawer sieve 6; the drive mechanism 5 drives the sieve box 4 to shake, thereby sieving the fill material. After sieving, the drawer sieves 6 are pulled out one by one from top to bottom to empty the fill material inside. After each drawer sieve 6 is pulled out, it is weighed by the weighing mechanism 2, and the weight value is recorded. The fill material gradation curve can be plotted using the recorded weight values, thereby testing the quality of the fill material. This fill material sieving and weighing device has two advantages: firstly, the drawer sieves 6 are arranged in a drawer-type configuration within the sieve box 4, making it easy to pull out and retrieve the material, which improves work efficiency; secondly, the sieve box 4 is supported by the weighing mechanism 2, which facilitates weighing and avoids the trouble of taking out and weighing each sieve individually, thus improving the convenience of operation.

[0034] Furthermore, in this embodiment, the sieve box 4 is provided with multiple receiving slots 41 with front openings. These receiving slots 41 are arranged vertically at intervals, and the receiving box 7 and each drawer sieve 6 are inserted into each receiving slot 41 in a corresponding manner. That is, the receiving box 7 is located in the lowest receiving slot 41, and each drawer sieve 6 is inserted into the remaining receiving slots 41 in a corresponding manner. The receiving slots 41 are arranged at intervals from bottom to top or from top to bottom.

[0035] Furthermore, such as Figure 1 As shown, in this embodiment, the driving mechanism 5 includes two sets of telescopic components 51. Mounting frames 31 are respectively provided on both sides of the support platform 3. One end of each set of telescopic components 51 is mounted on the mounting frames 31 on both sides of the support platform 3, and the other end is connected to both sides of the screen box 4. The two sets of telescopic components 51 extend and retract alternately (which can be understood as: when the left telescopic component 51 extends, the right telescopic component 51 retracts synchronously, and when the left telescopic component 51 retracts, the right telescopic component 51 extends synchronously), causing the screen box 4 to sway left and right, thus achieving screening. The structure is simple and the manufacturing cost is low.

[0036] Furthermore, in this embodiment, the telescopic member 51 is hinged to the screen box 4. Preferably, the telescopic member 51 is an electric cylinder, a hydraulic cylinder, or a pneumatic cylinder.

[0037] Furthermore, in this embodiment, the bottom of the screen box 4 is provided with movable wheels 42, which are supported on the support platform 3. The screen box 4 rolls on the support platform 3 via the movable wheels 42, reducing friction.

[0038] Furthermore, in this embodiment, the axial direction of the movable wheel 42 is perpendicular to the extension / retraction direction of the telescopic member 51. This ensures that the moving direction of the movable wheel 42 is consistent with the extension / retraction direction of the telescopic member 51.

[0039] Furthermore, such as Figure 2 As shown, in this embodiment, the drawer sieve 6 includes a frame 61 and a screen 62 disposed at the bottom of the frame 61. A handle 63 is provided on the front side of the frame 61. The screen 62 is used to filter finer filler material, leaving coarser filler material. The frame 61 serves as the shaping frame for the screen 62.

[0040] Furthermore, in this embodiment, the sieve box 4 is provided with a locking mechanism 8 for locking the drawer sieve 6. The locking mechanism 8 is used to lock the drawer sieve 6 when the sieve box 4 shakes, and to unlock the drawer sieve 6 when it is necessary to pull it out.

[0041] Furthermore, in this embodiment, the locking mechanism 8 includes multiple locking pins (not shown in the accompanying drawings) disposed on the sieve box 4, each locking pin corresponding to and locking onto each drawer sieve 6. The locking pins are conventional components, and their specific structure will not be described in detail.

[0042] Furthermore, in this embodiment, the receiving box 7 can also be locked by a locking pin.

[0043] Example 2:

[0044] Figure 3 Another embodiment of the fill material screening and weighing device of this utility model is shown. The structure of the fill material screening and weighing device in this embodiment is basically the same as that in the first embodiment, except that: in this embodiment, the locking mechanism 8 includes a locking rod 81 and a locking member 82. The top of the front side of the screen box 4 is provided with a hook 9 (or a buttonhole). The top of the locking rod 81 is provided with a hook 811 (such as a hook part). The hook 811 is hung on the hook 9. The bottom of the locking rod 81 is locked to the screen box 4 by the locking member 82. The locking rod 81 is limited to the front side of each drawer screen 6.

[0045] All drawer screens 6 can be locked using a single locking rod 81, which is more convenient than locking each screen using individual locking pins in Embodiment 1. Furthermore, to unlock, simply unscrew the locking element 82 and push the locking rod 81 upwards to remove the hook 811 from the hook 9, thus releasing the lock on each drawer screen 6; the unlocking operation is also convenient.

[0046] Furthermore, the locking rod 81 is located on the front side of the receiving box 7.

[0047] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A screening and weighing device for fill material, characterized in that: The device includes a base (1), a weighing mechanism (2), a support platform (3), and a screen box (4) with an open top. The weighing mechanism (2) is located on the base (1), the support platform (3) is located on the weighing mechanism (2), and the screen box (4) is swayably mounted on the support platform (3). The support platform (3) is provided with a driving mechanism (5) for driving the screen box (4) to sway. The screen box (4) is provided with multiple drawer screens (6) arranged vertically and vertically. Each drawer screen (6) is connected vertically and can be pulled out from the front side of the screen box (4). The screen box (4) is provided with a receiving box (7) below the lowest drawer screen (6).

2. The fill material screening and weighing device according to claim 1, characterized in that: The sieve box (4) is provided with multiple front-opening receiving slots (41), and each receiving slot (41) is arranged vertically at intervals. The receiving box (7) and each drawer sieve (6) are inserted into each receiving slot (41) in a corresponding manner.

3. The fill material screening and weighing device according to claim 1, characterized in that: The drive mechanism (5) includes two sets of telescopic components (51). The two sides of the support platform (3) are respectively provided with mounting frames (31). One end of the two sets of telescopic components (51) is respectively provided on the mounting frames (31) on both sides of the support platform (3), and the other end is respectively connected to the two sides of the screen box (4).

4. The fill material screening and weighing device according to claim 3, characterized in that: The telescopic component (51) is hinged to the sieve box (4).

5. The fill material screening and weighing device according to claim 3, characterized in that: The bottom of the sieve box (4) is provided with a movable wheel (42), which is supported on the support platform (3).

6. The fill material screening and weighing device according to claim 5, characterized in that: The axial direction of the movable wheel (42) is perpendicular to the telescopic direction of the telescopic member (51).

7. The fill material screening and weighing device according to claim 1, characterized in that: The drawer sieve (6) includes a frame (61) and a sieve (62) located at the bottom of the frame (61). A handle (63) is provided on the front side of the frame (61).

8. The fill material screening and weighing device according to any one of claims 1 to 7, characterized in that: The sieve box (4) is provided with a locking mechanism (8) for locking the drawer sieve (6).

9. The fill material screening and weighing device according to claim 8, characterized in that: The locking mechanism (8) includes multiple locking pins on the sieve box (4), and each locking pin is locked to each drawer sieve (6) in a corresponding manner.

10. The fill material screening and weighing device according to claim 9, characterized in that: The locking mechanism (8) includes a locking rod (81) and a locking member (82). The top of the front side of the sieve box (4) is provided with a hook (9). The top of the locking rod (81) is provided with a hook (811). The hook (811) is hung on the hook (9). The bottom of the locking rod (81) is locked to the sieve box (4) by the locking member (82). The locking rod (81) is limited to the front side of each drawer sieve (6).

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