Water conservancy construction screening machine

Abstract

The utility model relates to water conservancy construction technical field especially relates to a water conservancy construction screening machine, including shell, including shell, the left -hand middle part of shell is fixedly connected with drive motor, the left -hand upper portion of shell is fixedly connected with the feed inlet, drive motor output fixedly connected with extension shaft, the right -hand inner wall fixedly connected with cross -block of joint of extension shaft, the left -hand part and inner wall right -hand part of shell inner wall all are fixedly connected with a group of back -shaped lever, two groups back -shaped lever all are inserted and have the movable joint of roller axle, the right -hand part of shell outer surface is opened with thread groove, the right -hand part of shell is connected with the limit ring through thread groove screw thread joint, the inside of shell places the screening mechanism. The water conservancy construction screening machine can improve the screening efficiency of screening machine, reduce the impurity in aggregate, facilitate subsequent mixed concrete, and can conveniently install and disassemble the screening mechanism, and is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy construction technology, and in particular to a water conservancy construction screening machine. Background Technology

[0002] During water conservancy construction, aggregates such as river sand need to be screened to prevent impurities such as stones from affecting the quality of subsequent concrete. Screening machines have some defects and shortcomings, specifically requiring improvement as follows: 1. Screening machines generally can only perform simple screening; impurities with smaller diameters are difficult to screen out, affecting the screening effect; 2. The screen plates inside the screening machine are fixed, and the sharp surfaces of river sand and its impurities can wear down the screen, accelerating screen breakage. Fixed screen plates are also inconvenient for regular replacement. Therefore, we propose a water conservancy construction screening machine. Utility Model Content

[0003] The main purpose of this utility model is to provide a screening machine for water conservancy construction, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A screening machine for water conservancy construction includes a housing. A drive motor is fixedly connected to the middle of the left end of the housing. A feed inlet is fixedly connected to the upper left end of the housing. Support legs are fixedly connected to the lower left and lower right sides of the outer surface of the housing. An extension shaft is fixedly connected to the output end of the drive motor. A cross-shaped locking block is fixedly connected to the inner wall of the right side of the extension shaft. A set of U-shaped rods is fixedly connected to the left and right sides of the inner wall of the housing. Rollers are movably connected to both sets of U-shaped rods. A discharge port is fixedly connected to the middle of the lower end of the housing. A threaded groove is opened on the right side of the outer surface of the housing. A limit ring is threadedly engaged on the right side of the housing through the threaded groove. A screening mechanism is placed inside the housing.

[0005] Preferably, the screening mechanism includes an outer frame, on which several sets of sheet-like screens are fixedly connected at equal intervals on the outer surface of the outer frame, an outer ring is inserted and fixedly connected to the right side of the outer surface of the outer frame, an inner frame is fixedly connected to the right side of the outer frame, several sets of screening holes are opened at equal intervals on the inner frame, a rectangular plate is fixedly connected to the right side of the inner wall of the inner frame, a connecting rod is fixedly connected to the middle of the left end of the rectangular plate, and a cross-shaped locking groove is opened in the middle of the left end of the connecting rod.

[0006] By adopting the above technical solution: the drive motor has external wires and plugs, and the drive motor is controlled by external remote control.

[0007] Preferably, the inner frame is located in the middle of the outer frame, and the connecting rod is located in the middle of the inner frame.

[0008] By adopting the above technical solution, the internal frame can perform preliminary screening, and the sheet-like screen on the external frame can perform secondary screening.

[0009] Preferably, the outer frame contacts but is not fixed to the two sets of rollers.

[0010] By adopting the above technical solution, the roller can support the external frame with less friction.

[0011] Preferably, the limiting ring is in contact with the outer ring but is not fixed.

[0012] By adopting the above technical solution: the outer ring can limit the position of the screening mechanism from the right side, the surfaces of the limiting ring and the outer ring are smooth, and contact grinding will not affect it. In addition, the outer shell and the screening mechanism are both inclined, which can facilitate the discharge of impurities from the right side.

[0013] Preferably, the cross-shaped locking groove on the connecting rod is inserted and locked into the cross-shaped locking block on the extension shaft, and the lower part of the feed port passes through the internal frame.

[0014] By adopting the above technical solution, the cross-shaped locking groove is engaged with the cross-shaped locking block, which enables the drive motor to drive the screening mechanism to rotate and screen.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a screening mechanism, the internal frame and screening holes of the screening mechanism can perform preliminary screening of aggregates, removing larger particles of impurities, and the sheet screen on the external frame can screen the aggregates again, removing smaller impurities, resulting in finer aggregates and improving the overall screening efficiency.

[0016] 2. By setting up a screening mechanism, an extension shaft, and a limiting ring, the cross-shaped locking groove on the connecting rod of the screening mechanism and the cross-shaped locking block on the extension shaft can be engaged, allowing the screening mechanism to be connected to the drive motor on the left. The limiting ring on the right can be blocked from the right, fixing the position of the screening mechanism and facilitating disassembly and reassembly. Attached Figure Description

[0017] Figure 1 This is a partial structural schematic diagram of a screening machine for water conservancy construction according to the present invention; Figure 2 This is a partial structural schematic diagram of a screening machine for water conservancy construction according to the present invention; Figure 3 This is a partial structural schematic diagram of a screening machine for water conservancy construction according to the present invention; Figure 4 This is a partial structural diagram of the screening mechanism of a water conservancy construction screening machine according to the present invention; Figure 5 This is a partial structural diagram of the screening mechanism of a water conservancy construction screening machine according to this utility model.

[0018] In the diagram: 1. Outer shell; 2. Drive motor; 3. Feed inlet; 4. Support leg; 5. Extension shaft; 6. Cross-shaped locking block; 7. Retractable rod; 8. Roller; 9. Discharge port; 10. Threaded groove; 11. Limiting ring; 12. Screening mechanism; 13. External frame; 14. Sheet screen; 15. Outer ring; 16. Internal frame; 17. Screening hole; 18. Rectangular plate; 19. Connecting rod; 20. Cross-shaped locking groove. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figure 1-5 This utility model provides a technical solution: A water conservancy construction screening machine includes a housing 1. A drive motor 2 is fixedly connected to the middle of the left end of the housing 1. A feed inlet 3 is fixedly connected to the upper left end of the housing 1. Support legs 4 are fixedly connected to the lower left and lower right sides of the outer surface of the housing 1. An extension shaft 5 is fixedly connected to the output end of the drive motor 2. A cross-shaped clamping block 6 is fixedly connected to the inner wall of the right side of the extension shaft 5. A set of loop rods 7 are fixedly connected to the left and right sides of the inner wall of the housing 1. Rollers 8 are movably connected to both sets of loop rods 7. A discharge port 9 is fixedly connected to the middle of the lower end of the housing 1. A threaded groove 10 is opened on the right side of the outer surface of the housing 1. A limit ring 11 is threadedly clamped to the right side of the housing 1 through the threaded groove 10. A screening mechanism 12 is placed inside the housing 1.

[0023] In this embodiment, the screening mechanism 12 includes an outer frame 13. Several sets of sheet-like screens 14 are fixedly connected at equal intervals on the outer surface of the outer frame 13. An outer ring 15 is inserted and fixedly connected to the right side of the outer surface of the outer frame 13. An inner frame 16 is fixedly connected to the right side of the outer frame 13. Several sets of screening holes 17 are opened at equal intervals on the inner frame 16. A rectangular plate 18 is fixedly connected to the right side of the inner wall of the inner frame 16. A connecting rod 19 is fixedly connected to the middle of the left end of the rectangular plate 18. A cross-shaped snap-fit ​​groove 20 is opened in the middle of the left end of the connecting rod 19.

[0024] Through the above scheme: the internal frame 16, with its screening holes 17, can perform preliminary screening of the aggregate, selecting out impurities with larger diameters and discharging them from the right side. The sheet-like screen 14 on the external frame 13 can screen the aggregate again, further reducing the content of impurities and greatly improving the efficiency and quality of screening.

[0025] In this embodiment, the inner frame 16 is located in the middle of the outer frame 13, the connecting rod 19 is located in the middle of the inner frame 16, the outer frame 13 is in contact with but not fixed to the two sets of rollers 8, the limiting ring 11 is in contact with but not fixed to the outer ring 15, the cross-shaped snap-fit ​​groove 20 on the connecting rod 19 is inserted and snapped into the cross-shaped snap-fit ​​block 6 on the extension shaft 5, and the lower part of the feed port 3 passes through the inner frame 16.

[0026] With the above solution, the cross-shaped locking groove 20 on the connecting rod 19 of the screening mechanism 12 is engaged with the cross-shaped locking block 6 on the extension shaft 5, which not only connects the screening mechanism 12 to the extension shaft 5 on the left, but also facilitates the subsequent rotation and screening of the screening mechanism 12. At the same time, the limiting ring 11 on the right can prevent the screening mechanism 12 from sliding to the right, thus fixing the position of the screening mechanism 12. Conversely, it can be disassembled.

[0027] It should be noted that this utility model is a screening machine for water conservancy construction. During use, raw aggregate is first fed into the inner frame 16 through the feed inlet 3. The cross-shaped locking block 6 on the extension shaft 5 at the output end of the drive motor 2 engages with the cross-shaped locking groove 20 on the connecting rod 19. The extension shaft 5 then drives the outer frame 13 on the right side and the inner frame 16 to rotate together. When the inner frame 16 rotates, it begins to screen the raw aggregate. Larger particles of impurities in the raw aggregate flow out from the right side. The screened aggregate falls into the gap between the outer frame 13 and the inner frame 16, and can be further screened through the sheet-like screen 14 to separate smaller diameter particles. Impurities flow out from the right side, and the screened aggregate flows out from the discharge port 9 at the bottom. After use, the internal screening mechanism 12 can be rinsed with water pipe on the right side to reduce fine dust clogging the screen. After a period of use, if the screening mechanism 12 is found to be severely worn, the limiting ring 11 can be rotated in the opposite direction to remove it from the outer shell 1. Then, the screening mechanism 12 inside the outer shell 1 can be pulled out from the right side. After the new screening mechanism 12 passes through the outer shell 1, the cross-shaped locking groove 20 on its connecting rod 19 is engaged with the cross-shaped locking block 6 on the extension shaft 5. Then, the limiting ring 11 is connected to the outer shell 1, thus completing the replacement of the screening mechanism 12. The operation is simple.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A screening machine for water conservancy construction, comprising a casing (1), characterized in that: A drive motor (2) is fixedly connected to the middle of the left end of the outer shell (1). A feed inlet (3) is fixedly connected to the upper left end of the outer shell (1). Support legs (4) are fixedly connected to the lower left and lower right sides of the outer surface of the outer shell (1). An extension shaft (5) is fixedly connected to the output end of the drive motor (2). A cross-shaped clamping block (6) is fixedly connected to the inner wall of the right side of the extension shaft (5). A set of spiral rods (7) are fixedly connected to the left and right sides of the inner wall of the outer shell (1). Rollers (8) are movably connected to both sets of spiral rods (7). A discharge port (9) is fixedly connected to the middle of the lower end of the outer shell (1). A threaded groove (10) is opened on the right side of the outer surface of the outer shell (1). A limit ring (11) is threadedly clamped to the right side of the outer shell (1) through the threaded groove (10). A screening mechanism (12) is placed inside the outer shell (1).

2. The water conservancy construction screening machine according to claim 1, characterized in that: The screening mechanism (12) includes an outer frame (13), on which several sets of sheet-like screens (14) are fixedly connected at equal intervals on the outer surface of the outer frame (13), an outer ring (15) is fixedly connected through the right side of the outer surface of the outer frame (13), an inner frame (16) is fixedly connected to the right side of the outer frame (13), several sets of screening holes (17) are opened at equal intervals on the inner frame (16), a rectangular plate (18) is fixedly connected to the right side of the inner wall of the inner frame (16), a connecting rod (19) is fixedly connected to the middle of the left end of the rectangular plate (18), and a cross-shaped locking groove (20) is opened in the middle of the left end of the connecting rod (19).

3. A screening machine for water conservancy construction according to claim 2, characterized in that: The inner frame (16) is located in the middle of the outer frame (13), and the connecting rod (19) is located in the middle of the inner frame (16).

4. A screening machine for water conservancy construction according to claim 2, characterized in that: The outer frame (13) is in contact with but not fixed to the two sets of rollers (8).

5. A screening machine for water conservancy construction according to claim 2, characterized in that: The limiting ring (11) is in contact with the outer ring (15) but is not fixed.

6. A screening machine for water conservancy construction according to claim 4, characterized in that: The cross-shaped locking groove (20) on the connecting rod (19) is inserted and locked with the cross-shaped locking block (6) on the extension shaft (5), and the lower part of the feed port (3) passes through the inner frame (16).

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