Screening machine for water conservancy and hydropower engineering construction

Abstract

The screening machine for water conservancy and hydropower engineering construction comprises an extrusion structure, the extrusion structure comprises a moving block and a transverse rod, a connecting ring is arranged in the transverse rod, three sliding holes are formed in the middle of the connecting ring, and the three sliding holes are distributed in the transverse rod at equal intervals. According to the sand screening machine, sand clamped between the two screening rods can be squeezed through the squeezing structure capable of moving in a reciprocating mode, blocky sand can be squeezed in different directions, the screening machine is prevented from being blocked by the sand, meanwhile, the screening structure can rotate in a reciprocating mode, vibration is generated through rotation, and the screening effect is improved. According to the sand screening machine, the screening structure can rapidly vibrate sand, the sand can rapidly pass through the screening machine to be screened, gaps between the sand are increased, and the sand is prevented from being agglomerated.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy and hydropower engineering construction technology, and specifically relates to a screening machine for water conservancy and hydropower engineering construction. Background Technology

[0002] Water conservancy and hydropower engineering construction refers to the process of constructing hydraulic structures and hydropower facilities in the field of water conservancy and hydropower engineering, according to the requirements of design documents and construction specifications, using various construction technologies and methods. This work involves many disciplines and technical fields, such as civil engineering, installation engineering, bridge engineering, tunnel engineering, and geological engineering, and is a complex systems engineering project.

[0003] A screening machine is a vibrating screening machine that uses the relative motion between granular materials and the screen surface to allow some particles to pass through the screen holes, separating materials such as sand, gravel, and crushed stone into different grades according to particle size. The screening process of a screening machine is generally continuous. After the raw material is fed onto the screening machine (referred to as the screen), materials smaller than the screen hole size pass through the screen holes and are called undersize products; materials larger than the screen hole size are continuously discharged from the screen surface and are called oversize products.

[0004] During the construction of water conservancy and hydropower projects, sand needs to be screened using a screening machine. However, when the sand adheres to each other and forms lumps, the simple vibration of the screening machine cannot quickly break up the lumps, making it easy for the lumps to clog the screening machine. Utility Model Content

[0005] Purpose of utility model

[0006] To address the aforementioned technical problems, this utility model provides a screening machine for water conservancy and hydropower engineering construction, thereby solving the technical problems mentioned in the background art.

[0007] Technical solution

[0008] To achieve the above objectives, the technical solution provided by this utility model is a screening machine for water conservancy and hydropower engineering construction, including a feeding structure, a screening structure rotatably connected inside the feeding structure, and an extrusion structure slidably connected to the outer wall of the screening structure.

[0009] The extrusion structure includes a moving block and a crossbar. A connecting ring is provided inside the crossbar, and a sliding hole is provided in the middle of the connecting ring. The number of sliding holes is set to three, and the three sliding holes are evenly distributed inside the crossbar.

[0010] Preferably, the feeding structure includes a housing, with mounting grooves on both sides of the inner wall of the housing, a guide strip on the inner wall of the housing, the four sides of the guide strip being arc-shaped, a support frame on the top of the housing, and a bidirectional lead screw rotatably connected to the inner side of the support frame.

[0011] Preferably, the screening structure includes a rotating disk, with connecting shafts at both ends of the rotating disk, and the number of rotating disks is set to two, with the connecting shafts rotatably connected to the mounting groove.

[0012] Preferably, a screening rod is provided between the two rotating disks, and a vibrating ball is provided inside the screening rod. A synchronous belt drive device is provided on one side of the rotating disk.

[0013] Preferably, the number of screening rods is set to multiple, and the multiple screening rods are arranged in a ring array inside the rotating disk. The outer wall of the screening rod is slidably connected to the outer wall of the guide bar, and the screening rod is slidably connected to the sliding hole.

[0014] Preferably, the top of the movable block is provided with a mating hole, which is mated with a bidirectional lead screw. Guide bars are provided on both sides of the bottom of the movable block. Base frames are provided on both sides of the top of the crossbar. Guide grooves are provided on the top of the base frames. Rotating frames are provided on both sides of the guide grooves. The rotating frames are slidably connected to the guide bars.

[0015] Beneficial effects

[0016] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0017] This invention utilizes a reciprocating compression structure to compress sand stuck between two screening rods, allowing lumps of sand to be squeezed from different directions, preventing sand from clogging the screening machine. Simultaneously, the screening structure can also rotate reciprocally, generating vibration that allows the screening structure to quickly vibrate the sand, enabling it to pass through the screening machine rapidly and increasing the gaps between sand particles, thus preventing sand from clumping together. Attached Figure Description

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

[0019] Figure 2 This is a perspective view of the material feeding structure of this utility model;

[0020] Figure 3 This is a three-dimensional view of the screening structure of this utility model;

[0021] Figure 4 This is a three-dimensional unfolded view of the extrusion structure of this utility model.

[0022] Figure Labels

[0023] 1. Feeding structure; 101. Shell; 102. Mounting groove; 103. Guide bar; 104. Support frame; 105. Two-way lead screw; 2. Extrusion structure; 201. Moving block; 202. Mating hole; 203. Guide bar; 204. Rotating frame; 205. Guide groove; 206. Base frame; 207. Crossbar; 208. Connecting ring; 209. Sliding hole; 3. Screening structure; 301. Rotating disk; 302. Connecting shaft; 303. Screening rod; 304. Vibrating ball; 305. Synchronous belt drive device. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "other end", "one side", "front", "both ends", "both sides", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] 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.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0027] Referring now to the accompanying drawings, the various figures are intended only to illustrate certain exemplary embodiments and are not intended to limit the scope of the invention. In the various figures, the same reference numerals denote the same or corresponding parts. The dimensions and scales in the various figures are also for illustrative purposes only and should not be construed as limiting the scope of the invention; these dimensions may be enlarged relative to actual products.

[0028] Reference Figure 1-4 The screening machine shown is used for water conservancy and hydropower engineering construction. It includes a feeding structure 1, a screening structure 3 is rotatably connected inside the feeding structure 1, and an extrusion structure 2 is slidably connected to the outer wall of the screening structure 3.

[0029] The extrusion structure 2 includes a moving block 201 and a crossbar 207. A connecting ring 208 is provided inside the crossbar 207. A sliding hole 209 is provided in the middle of the connecting ring 208. The number of sliding holes 209 is set to three, and the three sliding holes 209 are evenly distributed inside the crossbar 207.

[0030] Furthermore, in the above technical solution, the feeding structure 1 includes a housing 101. The inner wall of the housing 101 has mounting grooves 102 on both sides. A guide strip 103 is provided on the inner wall of the housing 101, with arc-shaped edges on all four sides. A support frame 104 is provided on the top of the housing 101. A bidirectional lead screw 105 is rotatably connected to the inner side of the support frame 104. When sand needs to be screened, the sand is placed inside the housing 101 and guided by the guide strip 103. The motor is started, driving the bidirectional lead screw 105 to rotate. The bidirectional lead screw 105 then drives the extrusion structure 2 to move on the outer wall of the screening structure 3.

[0031] Furthermore, in the above technical solution, the screening structure 3 includes a rotating disk 301, with connecting shafts 302 at both ends of the rotating disk 301. Two rotating disks 301 are provided. The connecting shafts 302 are rotatably connected to the mounting groove 102. A screening rod 303 is provided between the two rotating disks 301. A vibrating ball 304 is provided inside the screening rod 303. A synchronous belt drive device 305 is provided on one side of the rotating disk 301. Multiple screening rods 303 are arranged in a circular array inside the rotating disk 301. The outer wall of the screening rod 303 is slidably connected to the outer wall of the guide bar 103. Next, the screening rod 303 is slidably connected to the sliding hole 209. The motor is started, and the motor drives the synchronous belt transmission device 305 to rotate back and forth. The motor drives the rotating disk 301 to rotate inside the housing 101 through the synchronous belt transmission device 305. The sand enters and exits through the gap between the two screening rods 303. At the same time, the rotating disk 301 drives the screening rod 303 to swing. Then, the screening rod 303 beats the clumps of sand, making the sand disperse, thereby preventing the sand from clogging the screening structure 3. At the same time, when the screening rod 303 swings, the vibrating ball 304 inside the screening rod 303 will also move. The vibrating ball 304 beats and vibrates the sand a second time, thereby screening the sand.

[0032] Furthermore, in the above technical solution, the top of the movable block 201 is provided with a mating hole 202, which mates with the bidirectional lead screw 105. Guide bars 203 are provided on both sides of the bottom of the movable block 201. The top of the crossbar 207 is provided with a base frame 206, and the top of the base frame 206 is provided with a guide groove 205. Rotating frames 204 are provided on both sides of the guide groove 205. The rotating frames 204 are slidably connected to the guide bars 203, and the bidirectional lead screw 105 rotates. When the moving block 201 moves back and forth, and the rotating disk 301 drives the screening rod 303 to rotate back and forth, the screening rod 303 drives the connecting ring 208 to swing left and right. The connecting ring 208 slides on the outer wall of the guide bar 203 through the guide grooves 205 on both sides of the rotating frame 204 at the top of the base frame 206. When the moving block 201 moves back and forth, it also drives the base frame 206 to move accordingly. The base frame 206 drives the sliding hole 209 to slide on the outer wall of the screening rod 303 to clean the sand adhering between the two screening rods 303.

[0033] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A screening machine for water conservancy and hydropower engineering construction, characterized in that: include The feeding structure (1) is rotatably connected to the inside of the feeding structure (1), and the outer wall of the screening structure (3) is slidably connected to the extrusion structure (2). The extrusion structure (2) includes a moving block (201) and a crossbar (207). A connecting ring (208) is provided inside the crossbar (207). A sliding hole (209) is provided in the middle of the connecting ring (208). The number of sliding holes (209) is set to three, and the three sliding holes (209) are evenly distributed inside the crossbar (207).

2. The screening machine for water conservancy and hydropower engineering construction according to claim 1, characterized in that: The feeding structure (1) includes a housing (101), with mounting grooves (102) on both sides of the inner wall of the housing (101), and a guide strip (103) on the inner wall of the housing (101). The four sides of the guide strip (103) are arc-shaped. A support frame (104) is provided on the top of the housing (101), and a bidirectional lead screw (105) is rotatably connected to the inner side of the support frame (104).

3. A screening machine for water conservancy and hydropower engineering construction according to claim 1, characterized in that: The screening structure (3) includes a rotating disk (301), with connecting shafts (302) at both ends of the rotating disk (301). The number of rotating disks (301) is set to two, and the connecting shafts (302) are rotatably connected to the mounting groove (102).

4. A screening machine for water conservancy and hydropower engineering construction according to claim 3, characterized in that: A screening rod (303) is provided between the two rotating disks (301), and a vibrating ball (304) is provided inside the screening rod (303). A synchronous belt drive device (305) is provided on one side of the rotating disk (301).

5. A screening machine for water conservancy and hydropower engineering construction according to claim 4, characterized in that: The number of screening rods (303) is set to multiple, and the multiple screening rods (303) are arranged in a ring on the inner side of the rotating disk (301). The outer wall of the screening rod (303) is slidably connected to the outer wall of the guide bar (103), and the screening rod (303) is slidably connected to the sliding hole (209).

6. A screening machine for water conservancy and hydropower engineering construction according to claim 1, characterized in that: The top of the movable block (201) is provided with a mating hole (202), which is mated with the bidirectional lead screw (105). Guide bars (203) are provided on both sides of the bottom of the movable block (201). The top of the crossbar (207) is provided with a base frame (206). The top of the base frame (206) is provided with a guide groove (205). Rotating frames (204) are provided on both sides of the guide groove (205). The rotating frames (204) are slidably connected to the guide bars (203).

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