A water conservancy facility sundry intercepting and filtering device

Abstract

The utility model relates to a water conservancy facility sundry intercepting filter device belongs to water conservancy facility auxiliary equipment technical field, this water conservancy facility sundry intercepting filter device, include: rotary bar screen cleaner and conveyer belt, the conveyer belt sets up in rotary bar screen cleaner's discharge side, guide impurity removal mechanism, the guide impurity removal mechanism includes guide chute, the guide chute sets up between rotary bar screen cleaner and conveyer belt, the side end of guide chute is equipped with the through -hole, the through -hole sets up below rotary bar screen cleaner discharge side, the side end fixedly connected with servo motor of guide chute, guide impurity removal mechanism is staggered distribution through cutting knife and rotary bar screen cleaner tine, rotates cutting under servo motor drive, directly cuts off and winds the plastic film or fiber long soft sundry in the clearance of tine, effectively solved the problem that the clearance of tine is easily entangled and jams and leads to the reduction of water area, equipment overload and the problem of the decline of dredging efficiency.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for water conservancy facilities, and in particular to a debris interception and filtration device for water conservancy facilities. Background Technology

[0002] In water conservancy facilities, a combination of floating rafts and rotary bar screens is used to intercept debris. Floating rafts are used to guide and collect floating objects in open water areas, while rotary bar screens are installed at the water inlet and continuously and automatically remove debris from the water through their rotating rake teeth. This method has significant advantages in terms of high automation and stable operation.

[0003] In practical applications, the parallel rake teeth of rotary bar screens are prone to getting tangled and stuck with soft debris such as plastic film or fibers. This blockage reduces the water flow area and causes equipment overload and reduced cleaning efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide a debris interception and filtration device for water conservancy facilities to address the problem that the gaps between the rake teeth of rotary bar screens are easily blocked by flexible debris and cause operational failures during actual operation.

[0005] A debris interception and filtration device for water conservancy facilities includes: a rotary bar screen and a conveyor belt, wherein the conveyor belt is disposed on the discharge side of the rotary bar screen.

[0006] A guide cleaning mechanism includes a guide hopper, which is positioned between the rotary bar screen and the conveyor belt. A through hole is provided at the side end of the guide hopper, located below the discharge side of the rotary bar screen. A servo motor is fixedly connected to the side end of the guide hopper. A drive shaft that is slidably connected to the through hole is inserted into the end of the output shaft of the servo motor. Cutting blades that are staggered with the rake teeth of the rotary bar screen are fixedly connected to the arc surface of the drive shaft.

[0007] In one embodiment, the ratio of the number of cutting blade groups to the number of rake teeth in the same row of the rotary bar screen is n-1:n (n≥10), and each group of cutting blades is arranged in two adjacent rake tooth assemblies of the rotary bar screen.

[0008] In one embodiment, the number of cutting blades in each group is not less than three, and the cutting blades in the same group are fixedly connected in a ring to the arc surface of the drive shaft.

[0009] In one embodiment, the arc surface of the drive shaft is provided with a guide groove disposed inside the through hole. The guide groove is obliquely annular in shape. A guide block fixedly connected to the through hole is slidably connected inside the guide groove. The end of the servo motor output shaft is provided with a slot. A guide post fixedly connected to the drive shaft is inserted into the slot.

[0010] In one embodiment, the slot and guide post are both rectangular parallelepipeds, and the centerlines of the servo motor output shaft, slot, drive shaft and guide post all coincide on the same horizontal line.

[0011] In one embodiment, the maximum horizontal sliding distance of the guide post inside the slot is greater than the maximum horizontal sliding distance of the drive shaft through the guide groove and guide block inside the through hole.

[0012] In one embodiment, the maximum horizontal distance that the cutting blade can slide between two adjacent rake teeth of the rotary bar screen is greater than the maximum horizontal distance that the guide block can slide inside the through hole.

[0013] In one embodiment, a baffle plate is fixedly connected to the top of the guide hopper, and the height of the baffle plate is higher than the discharge side of the rotary bar screen.

[0014] Beneficial effects

[0015] 1. The above-mentioned water conservancy facility debris interception and filtration device guides the debris removal mechanism to rotate and cut through the cutting blade and the rake teeth of the rotary bar screen cleaner, which are distributed in an alternating manner under the drive of the servo motor. This directly cuts the soft debris such as plastic film or fiber wrapped in the gap between the rake teeth, effectively solving the problem of easy entanglement and blockage in the gap between the rake teeth, resulting in a reduction in the water flow area, equipment overload and reduced cleaning efficiency.

[0016] 2. By cooperating with the guide groove on the drive shaft and the guide block in the through hole, the cutting blade can slide axially while rotating and cutting, actively shaking off the cut debris and causing it to detach from the rake teeth, which further ensures the stability of the water flow area of ​​the rotary bar screen and the continuous automated operation of the cleaning process. Attached Figure Description

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

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the rotary bar screen cleaner and the guide and impurity removal mechanism in this utility model;

[0020] Figure 3 This is a schematic diagram of the guiding and impurity removal mechanism in this utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the guide and impurity removal mechanism in this utility model;

[0022] Figure 5 This is a partial exploded view of the guide and impurity removal mechanism in this utility model.

[0023] Figure label:

[0024] 100. Rotary bar screen cleaner; 200. Conveyor belt; 300. Guided cleaning mechanism; 310. Guide hopper; 311. Through hole; 320. Servo motor; 321. Slot; 330. Drive shaft; 331. Guide groove; 340. Cutting blade; 350. Guide block; 360. Guide column; 370. Baffle plate. Detailed Implementation

[0025] 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 embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The following is combined Figure 1 - Figure 5 This utility model describes a debris interception and filtration device for water conservancy facilities.

[0027] In one embodiment, a debris interception and filtration device for water conservancy facilities includes: a rotary bar screen 100, a conveyor belt 200, and a debris removal guiding mechanism 300, wherein the conveyor belt 200 is disposed on the discharge side of the rotary bar screen 100.

[0028] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the guiding and cleaning mechanism 300 includes a guide hopper 310, which is disposed between the rotary bar screen cleaner 100 and the conveyor belt 200. A through hole 311 is provided at the side end of the guide hopper 310, located below the discharge side of the rotary bar screen cleaner 100. A servo motor 320 is fixedly connected to the side end of the guide hopper 310. A drive shaft 330, slidably connected to the through hole 311, is inserted into the end of the output shaft of the servo motor 320. An arc-shaped surface of the drive shaft 330 is fixedly connected to the rotary bar screen cleaner. The rotary bar screen 100 has 100 staggered cutting blades 340; a baffle plate 370 is fixedly connected to the top of the guide hopper 310, and the height of the baffle plate 370 is higher than the discharge side of the rotary bar screen 100; the ratio of the number of groups of cutting blades 340 to the number of rake teeth in the same row of the rotary bar screen 100 is n-1:n (n≥10), and each group of cutting blades 340 is set on two adjacent rake tooth assemblies of the rotary bar screen 100; the number of cutting blades 340 in each group is not less than three, and the cutting blades 340 in the same group are fixedly connected in a ring to the arc surface of the drive shaft 330.

[0029] like Figure 4 and Figure 5 As shown, the arc surface of the drive shaft 330 has a guide groove 331 disposed inside the through hole 311. The guide groove 331 is obliquely annular in shape. A guide block 350, which is fixedly connected to the through hole 311, is slidably connected inside the guide groove 331. The end of the output shaft of the servo motor 320 has a slot 321. A guide post 360, which is fixedly connected to the drive shaft 330, is inserted into the slot 321. Both the slot 321 and the guide post 360 are cuboid in shape. The servo motor... The centerlines of the output shaft 320, slot 321, drive shaft 330, and guide post 360 all coincide on the same horizontal line; the maximum horizontal sliding distance of the guide post 360 inside the slot 321 is greater than the maximum horizontal sliding distance of the drive shaft 330 through the guide groove 331 and guide block 350 inside the through hole 311; the maximum horizontal sliding distance of the cutting blade 340 between two adjacent rake teeth of the rotary bar screen cleaner 100 is greater than the maximum horizontal sliding distance of the guide block 350 inside the through hole 311.

[0030] In this embodiment, during installation, the rotary bar screen 100 is first installed at the centralized interception part of the floating raft on the water surface, and its discharge side is aligned directly above the guide hopper 310. The rotary bar screen 100 is then fixed to the top of the guide hopper 310 with bolts. Subsequently, the conveyor belt 200 is installed below the discharge side of the guide hopper 310 to complete the mechanical positioning and fixing of the entire device.

[0031] In use, the rotary bar screen 100 continuously intercepts and lifts debris in the water flow, guiding the debris removal mechanism 300 to operate synchronously. Its cutting blade 340 rotates and reciprocates between the rake teeth of the rotary bar screen 100, cutting long soft debris and causing it to fall off. The treated debris is guided by the guide hopper 310 and finally falls onto the conveyor belt 200 for centralized removal.

[0032] Working principle: During the normal conveying of debris by the rotary bar screen 100, the servo motor 320 drives the transmission shaft 330 to rotate, causing multiple sets of cutting blades 340 fixed on it to rotate between adjacent rake teeth of the rotary bar screen 100, directly cutting long, soft debris entangled in the gaps between the rake teeth. At the same time, the transmission shaft 330, through the oblique annular guide groove 331 on its surface, cooperates with the guide block 350 fixed in the through hole 311, generating axial reciprocating sliding during rotation. This sliding transmits power through the insertion of the output shaft slot 321 and the guide column 360, leaving a displacement margin, so that the cutting blades 340 reciprocate in the gaps between the rake teeth, actively shaking off the cut and cleaned debris, ensuring the water flow area and operational stability of the equipment, and improving the automation and continuity of the entire cleaning process.

[0033] It should be noted that the actual model of the rotary bar screen 100 is Dingyue Environmental Protection HG1200x10000-10. Its core structure includes a frame, drive unit, rotary rake chain, and bar screens. Its working principle is that the motor drives the rake chain to rotate continuously, moving against the water flow to intercept and lift suspended debris in the water. In this interception and filtration device, it serves as the primary filtration unit. The rake teeth on its discharge side are staggered with the cutting blades 340 in the subsequent guiding and debris removal mechanism 300, achieving initial interception and transfer of debris.

[0034] The actual model of conveyor belt 200 is a customized belt conveyor from Northern Water Conservancy Machinery Plant. Its core structure consists of a drive drum, a ring-shaped rubber conveyor belt, idlers, and a tensioning device. Its working principle is that the motor drives the drum, using friction to continuously move the conveyor belt to transport materials. In this system, it is directly installed below the discharge side of the rotary bar screen 100 to receive and horizontally transport debris that has been caught by the bar screen and processed by the guiding and impurity removal mechanism 300, achieving continuous material transfer.

[0035] The servo motor 320 is a Delta ASDA-B2 series general-purpose servo motor. Its core structure includes the motor body, a high-precision encoder, and a controller. Its working principle involves precisely controlling the angular displacement and torque of the output shaft by receiving pulse signals to achieve speed change and reciprocating motion. In this device, it is fixed to the side of the guide hopper 310. Its output shaft is connected to the drive shaft 330 via a slot 321. This not only drives the cutter 340 to rotate and cut long, soft debris, but also, through the cooperation of the guide groove 331 and the guide block 350, converts the rotational motion into axial reciprocating sliding, ensuring that the cutter 340 can effectively clean and shake off debris from the gaps between the grid rake teeth. This, in conjunction with the rotary bar screen 100 and the conveyor belt 200, achieves fully automatic interception, crushing, and conveying functions.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A debris interception and filtration device for water conservancy facilities, characterized in that, include: A rotary bar screen (100) and a conveyor belt (200), wherein the conveyor belt (200) is disposed on the discharge side of the rotary bar screen (100); A guide cleaning mechanism (300) is provided, which includes a guide hopper (310) disposed between the rotary bar screen cleaner (100) and the conveyor belt (200). A through hole (311) is provided on the side end of the guide hopper (310), which is located below the discharge side of the rotary bar screen cleaner (100). A servo motor (320) is fixedly connected to the side end of the guide hopper (310). A transmission shaft (330) that is slidably connected to the end of the output shaft of the servo motor (320) is inserted into the end of the output shaft of the servo motor (320). A cutting blade (340) that is staggered with the rake teeth of the rotary bar screen cleaner (100) is fixedly connected to the arc surface of the transmission shaft (330).

2. The debris interception and filtration device for water conservancy facilities according to claim 1, characterized in that, The ratio of the number of cutting blades (340) to the number of rake teeth in the same row of the rotary bar screen cleaner (100) is n-1:n (n≥10), and each set of cutting blades (340) is set in two adjacent rake tooth assemblies of the rotary bar screen cleaner (100).

3. The debris interception and filtration device for water conservancy facilities according to claim 2, characterized in that, The number of cutting blades (340) in each group is not less than three, and the cutting blades (340) in the same group are fixedly connected in a ring to the arc surface of the drive shaft (330).

4. The debris interception and filtration device for water conservancy facilities according to claim 1, characterized in that, The arc surface of the drive shaft (330) is provided with a guide groove (331) disposed inside the through hole (311). The guide groove (331) is shaped like an oblique ring. The guide block (350) is slidably connected inside the guide groove (331) and fixedly connected to the through hole (311). The end of the output shaft of the servo motor (320) is provided with a slot (321). The guide post (360) fixedly connected to the drive shaft (330) is inserted into the slot (321).

5. The debris interception and filtration device for water conservancy facilities according to claim 4, characterized in that, The slot (321) and guide post (360) are both rectangular parallelepipeds. The centerlines of the servo motor (320) output shaft, slot (321), transmission shaft (330) and guide post (360) all coincide on the same horizontal line.

6. The debris interception and filtration device for water conservancy facilities according to claim 4, characterized in that, The maximum horizontal distance that the guide post (360) can slide inside the slot (321) is greater than the maximum horizontal distance that the drive shaft (330) can slide through the guide groove (331) and the guide block (350) inside the through hole (311).

7. The debris interception and filtration device for water conservancy facilities according to claim 6, characterized in that, The maximum horizontal distance that the cutting blade (340) can slide between two adjacent rake teeth of the rotary bar screen (100) is greater than the maximum horizontal distance that the guide block (350) can slide inside the through hole (311).

8. The debris interception and filtration device for water conservancy facilities according to claim 1, characterized in that, A baffle plate (370) is fixedly connected to the top of the guide hopper (310), and the height of the baffle plate (370) is higher than the discharge side of the rotary bar screen (100).

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