Sand screening device for earth-rock engineering construction

Abstract

The utility model relates to the technical field of sand screening devices, and discloses a sand screening device for earth-rock engineering construction, which comprises a working table, a self-cleaning sand screening mechanism is arranged at the top of the working table, a supporting mechanism is arranged at the bottom of the working table, the self-cleaning sand screening mechanism comprises a supporting seat I and a supporting seat II, and the supporting seat I and the supporting seat II are arranged on the working table. The first supporting seat and the second supporting seat are both fixedly installed on the top of the workbench, and protruding seats are fixedly installed on the top of the first supporting seat and the top of the second supporting seat. Through the design of the belt pulley I, the rotating shaft can be driven by the transmission of an external belt to rotate, and through the design of the spring, the sand screening barrel can be continuously knocked by the rubber rod in the rotating process of the rotating shaft, particles blocked on the sand screening barrel are promoted to fall off, the automatic cleaning function is realized, the manpower consumption is reduced, and the working efficiency is improved. And through the design of the wear-resistant paint layer, the wear-resistant performance of the rubber rod can be improved, and the service life of the rubber rod is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of sand screening devices, specifically, to a sand screening device used in earthwork engineering construction. Background Technology

[0002] Sand screening machines are generally needed in earthwork construction. Also known as dryland sand screening boats or sand and gravel separators, sand screening machines are suitable for sand and gravel separation in rivers, reservoirs, and coal yards. They consist of a hull, frame, reducer, conveyor belt, rotating screen, engine or motor. They are simple in structure, economical, practical, and easy to operate.

[0003] Chinese patent discloses a flip-type sand screening device for construction engineering, publication number CN218460073U. The technical solution disclosed in this patent document is as follows: the bottom of the processing box is fixedly connected to a fixed leg, the inside of the processing box is provided with a screening component, the outside of the screening component is provided with a fixed ring, the inner wall of the processing box is provided with a sliding groove, and the outside of the fixed ring is rotatably connected to the inner wall of the sliding groove.

[0004] To address the low efficiency of manual sand sieving using screens, existing technologies employ a combination of motors, processing tanks, and centralized tanks. However, these methods often fail to automatically clean the screens, which are easily clogged by larger particles during operation. This necessitates manual cleaning of the screens, further impacting sieving efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a sand screening device for earthwork construction, which solves the problem that existing technologies cannot automatically clean the screen.

[0006] This utility model provides the following technical solution: a sand screening device for earthwork construction, including a workbench, a self-cleaning sand screening mechanism on the top of the workbench, and a support mechanism on the bottom of the workbench.

[0007] The self-cleaning sand screening mechanism includes a support base one and a support base two. Both support base one and support base two are fixedly installed on the top of the workbench. A protruding seat is fixedly installed on the top of both support base one and support base two. A rotating shaft is rotatably connected to the inner wall of the protruding seat. A pulley one is fixedly installed on the left end of the rotating shaft. A connecting sleeve is fixedly sleeved on the outer wall of the rotating shaft. A movable block is detachably connected to the outer wall of the connecting sleeve. A spring is fixedly connected to the side of the movable block away from the outer wall of the connecting sleeve. A rubber rod is fixedly connected to the end of the spring away from the movable block. A wear-resistant paint layer is coated on the outer surface of the rubber rod.

[0008] Furthermore, a rotating inner cylinder is rotatably connected to the inner wall of both support base one and support base two. An elastic element is fixedly installed on the adjacent side of each of the two rotating inner cylinders. A receiving ring is fixedly installed at the end of the elastic element away from the rotating inner cylinder. A sand screening cylinder is detachably connected between the two receiving rings.

[0009] Furthermore, rubber rings are fixedly connected to adjacent sides of the two rotating inner cylinders, and the side of the rubber ring away from the rotating inner cylinder is fixedly connected to the side of the receiving ring.

[0010] Furthermore, the self-cleaning sand screening mechanism also includes a vertical seat, which is fixedly installed on the top of the workbench. A drive motor is fixedly installed on the left side of the vertical seat, and a rotating seat is rotatably connected to the right side of the vertical seat. The output shaft of the drive motor is fixedly connected to the left end of the rotating seat.

[0011] Furthermore, a second pulley is fixedly connected to the middle of the rotating seat, and a transmission rod is fixedly installed on the right side of the rotating seat. The end of the transmission rod away from the rotating seat is fixedly connected to the left side of the rotating inner cylinder located on the left side.

[0012] Furthermore, the support mechanism includes a positioning seat, a plate-shaped platform is fixedly mounted on the top of the positioning seat, a rotating component is rotatably connected to the inner wall of the plate-shaped platform, and the rotating component is fixedly mounted on the bottom of the worktable.

[0013] Furthermore, a first adapter seat is fixedly installed on the top of the positioning seat, a synchronous hydraulic cylinder is fixedly installed on the top of the first adapter seat, a second adapter seat is fixedly installed on the telescopic end of the synchronous hydraulic cylinder, and the second adapter seat is fixedly installed on the bottom of the worktable.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes a pulley design, allowing the shaft to rotate via an external belt. A spring design further enables the rubber rod to continuously strike the sand screening cylinder during rotation, dislodging clogged particles and achieving automatic cleaning. This reduces manpower consumption and improves screening efficiency. The wear-resistant coating enhances the rubber rod's wear resistance and extends its service life.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a schematic diagram of the connecting sleeve of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the sand screening cylinder and the rotating inner cylinder of this utility model;

[0021] Figure 4 for Figure 3 Enlarged view of structure A in the image;

[0022] Figure 5 This is a schematic diagram of the support mechanism of this utility model;

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Workbench; 2. Self-cleaning sand screening mechanism; 21. Support seat one; 22. Support seat two; 23. Protruding seat; 24. Rotating shaft; 241. Connecting sleeve; 242. Movable block; 243. Spring; 244. Rubber rod; 245. Wear-resistant coating layer; 25. Belt pulley one; 26. Vertical seat; 261. Drive motor; 262. Rotating seat; 263. Belt pulley two; 264. Transmission rod; 27. Rotating inner cylinder; 271. Elastic element; 272. Rubber ring; 273. Receiving ring; 274. Sand screening cylinder; 3. Support mechanism; 31. Positioning seat; 32. Plate-shaped platform; 33. Rotating element; 34. Adapter seat one; 35. Adapter seat two; 36. Synchronous hydraulic cylinder. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0026] like Figures 1-4As shown, this utility model provides a technical solution: a sand screening device for earthwork construction, including a workbench 1, a self-cleaning sand screening mechanism 2 on the top of the workbench 1, and a support mechanism 3 at the bottom of the workbench 1. The self-cleaning sand screening mechanism 2 includes a support seat 1 21 and a support seat 22. Both support seat 1 21 and support seat 22 are fixedly installed on the top of the workbench 1. Both support seat 1 21 and support seat 22 have a protruding seat 23 fixedly installed on their tops. A rotating shaft 24 is rotatably connected to the inner wall of the protruding seat 23. A pulley 25 is fixedly installed on the left end of the rotating shaft 24. A connecting sleeve 241 is fixedly sleeved on the outer wall of the rotating shaft 24. A movable block 242 is detachably connected to the outer wall of the connecting sleeve 241. The side of the movable block 242 away from the outer wall of the connecting sleeve 241 is fixedly connected to... A spring 243 is connected to a rubber rod 244, with the end of the spring 243 away from the movable block 242 fixedly connected to it. The outer surface of the rubber rod 244 is coated with a wear-resistant paint layer 245. Through the cooperation of the pulley 25 and the external belt, the rotating shaft 24 can be driven to rotate when the drive motor 261 is working. Through the design of the spring 243, the rubber rod 244 can continuously knock on the sand screening cylinder 274 during the rotation of the rotating shaft 24, causing the particles blocking the sand screening cylinder 274 to fall off, realizing the automatic cleaning function. The wear-resistant paint layer 245 can be made of alumina or other materials to improve the wear resistance of the rubber rod 244 and extend its service life. The movable block 242 is installed on the connecting sleeve 241 by bolts, which makes it convenient for the user to replace the damaged rubber rod 244 as a whole.

[0027] As one implementation method in this embodiment, such as Figures 1-4As shown, rotating inner cylinders 27 are rotatably connected to the inner walls of support base 1 21 and support base 22. Elastic elements 271 are fixedly installed on adjacent sides of the two rotating inner cylinders 27. A receiving ring 273 is fixedly installed on the end of the elastic element 271 away from the rotating inner cylinder 27. A sand screening cylinder 274 is detachably connected between the two receiving rings 273. Rubber rings 272 are fixedly connected to adjacent sides of the two rotating inner cylinders 27. The side of the rubber ring 272 away from the rotating inner cylinder 27 is fixedly connected to the side of the receiving ring 273. The self-cleaning sand screening mechanism 2 also includes a vertical base 26, which is fixedly installed on the top of the workbench 1. A drive motor 261 is fixedly installed on the left side of the vertical base 26, and a rotating base 262 is rotatably connected to the right side of the vertical base 26. The output shaft of the drive motor 261 is fixedly connected to the left end of the rotating base 262. A pulley 263 is fixedly connected to the middle of the rotating base 262, and a transmission rod 264 is fixedly installed on the right side of the rotating base 262. The end of the moving rod 264 away from the rotating seat 262 is fixedly connected to the left side of the rotating inner cylinder 27 located on the left side. It controls the operation of the drive motor 261, which drives the rotating seat 262 to rotate. Through the transmission rod 264, the rotating inner cylinder 27 is driven to rotate, and at the same time, the sand screening cylinder 274 is rotated to realize the function of sand screening. The external belt is pre-fitted onto the outer wall of the second pulley 263 and the first pulley 25, so that when the drive motor 261 is working, it can simultaneously drive the first pulley 25 to rotate. Through the design of the elastic element 271, the rotating inner cylinder 27 and the receiving ring 273 are elastically connected, which enhances the continuous striking effect of the rubber rod 244 on the sand screening cylinder 274. Through the design of the rubber ring 272, the inner cavity of the rotating inner cylinder 27 and the receiving ring 273 can be sealed, avoiding the problem of material leakage caused by only setting the elastic element 271. The sand screening cylinder 274 is installed on the receiving ring 273 by bolts, which facilitates the user to disassemble and maintain the sand screening cylinder 274.

[0028] As one implementation method in this embodiment, such as Figure 5 As shown, the support mechanism 3 includes a positioning seat 31, a plate-shaped platform 32 fixedly mounted on the top of the positioning seat 31, a rotating component 33 rotatably connected to the inner wall of the plate-shaped platform 32, the rotating component 33 fixedly mounted on the bottom of the workbench 1, a first adapter 34 fixedly mounted on the top of the positioning seat 31, a synchronous hydraulic cylinder 36 fixedly mounted on the top of the first adapter 34, a second adapter 35 fixedly mounted on the telescopic end of the synchronous hydraulic cylinder 36, the second adapter 35 fixedly mounted on the bottom of the workbench 1, the synchronous hydraulic cylinder 36 rotatably connected to the positioning seat 31 through the first adapter 34, and rotatably connected to the workbench 1 through the second adapter 35. Through the design of the plate-shaped platform 32 and the rotating component 33, the positioning seat 31 is rotatably connected to the workbench 1, and the synchronous hydraulic cylinder 36 is controlled to extend, which allows the workbench 1 to tilt, making it convenient for the user to adjust the overall tilt of the sand screening cylinder 274 and realize the function of controlling the sand screening speed.

[0029] Working principle: In use, firstly, the synchronous hydraulic cylinder 36 is extended, causing the sand screening cylinder 274 to tilt as a whole. Then, the drive motor 261 is controlled to drive the sand screening cylinder 274 to rotate. Next, the material can be fed in from the right side of the inner cavity of the sand screening cylinder 274, and the sand screening work is completed through the sand screening cylinder 274. Qualified sand is discharged from the bottom of the sand screening cylinder 274, and the screened impurities are discharged from the left side of the sand screening cylinder 274. During the operation of the drive motor 261, the rotating shaft 24 is driven to rotate synchronously, causing the rubber rod 244 to continuously strike the sand screening cylinder 274, realizing the automatic cleaning function.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sand screening device for earthwork construction, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a self-cleaning sand screening mechanism (2), and the bottom of the workbench (1) is provided with a support mechanism (3). The self-cleaning sand screening mechanism (2) includes a support seat one (21) and a support seat two (22). The support seat one (21) and the support seat two (22) are both fixedly installed on the top of the workbench (1). The top of the support seat one (21) and the support seat two (22) are both fixedly installed with a protruding seat (23). A rotating shaft (24) is rotatably connected to the inner wall of the protruding seat (23). A pulley (25) is fixedly installed on the left end of (24). A connecting sleeve (241) is fixedly sleeved on the outer wall of the shaft (24). A movable block (242) is detachably connected to the outer wall of the connecting sleeve (241). A spring (243) is fixedly connected to the side of the movable block (242) away from the outer wall of the connecting sleeve (241). A rubber rod (244) is fixedly connected to the end of the spring (243) away from the movable block (242). A wear-resistant paint layer (245) is coated on the outer surface of the rubber rod (244).

2. The sand screening device for earthwork construction according to claim 1, characterized in that: The inner walls of the first support (21) and the second support (22) are rotatably connected to rotating inner cylinders (27). Elastic elements (271) are fixedly installed on the adjacent side of the two rotating inner cylinders (27). A receiving ring (273) is fixedly installed at the end of the elastic element (271) away from the rotating inner cylinder (27). A sand screening cylinder (274) is detachably connected between the two receiving rings (273).

3. A sand screening device for earthwork construction according to claim 2, characterized in that: A rubber ring (272) is fixedly connected to one side of each of the two rotating inner cylinders (27), and the side of the rubber ring (272) away from the rotating inner cylinder (27) is fixedly connected to the side of the receiving ring (273).

4. A sand screening device for earthwork construction according to claim 3, characterized in that: The self-cleaning sand screening mechanism (2) also includes a vertical seat (26), which is fixedly installed on the top of the workbench (1). A drive motor (261) is fixedly installed on the left side of the vertical seat (26), and a rotating seat (262) is rotatably connected to the right side of the vertical seat (26). The output shaft of the drive motor (261) is fixedly connected to the left end of the rotating seat (262).

5. A sand screening device for earthwork construction according to claim 4, characterized in that: A pulley (263) is fixedly connected to the middle of the rotating seat (262), and a transmission rod (264) is fixedly installed on the right side of the rotating seat (262). The end of the transmission rod (264) away from the rotating seat (262) is fixedly connected to the left side of the rotating inner cylinder (27) located on the left side.

6. A sand screening device for earthwork construction according to claim 1, characterized in that: The support mechanism (3) includes a positioning seat (31), a plate-shaped platform (32) is fixedly installed on the top of the positioning seat (31), and a rotating component (33) is rotatably connected to the inner wall of the plate-shaped platform (32). The rotating component (33) is fixedly installed on the bottom of the workbench (1).

7. A sand screening device for earthwork construction according to claim 6, characterized in that: The top of the positioning seat (31) is fixedly installed with a first adapter seat (34), the top of the first adapter seat (34) is fixedly installed with a synchronous hydraulic cylinder (36), the telescopic end of the synchronous hydraulic cylinder (36) is fixedly installed with a second adapter seat (35), and the second adapter seat (35) is fixedly installed at the bottom of the workbench (1).

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