Wide-runner cutter suction type ecological dredging pump

Abstract

The invention relates to the technical field of water treatment equipment, in particular to a wide-runner cutter suction type ecological dredging pump. The device comprises a pump body, a water inlet, a rotating shaft shell, a rotating shaft rod, a stress disc, a damping shaft, a relay plate, a spiral stirring rotary vane and a diffusion rotary vane, water inlets are annularly distributed in the side wheel face of the bottom of the pump body, the bottom end of the rotating shaft shell extends to the surrounding range of the water inlets, the rotating shaft rod penetrates through the driving space of the pump body, the rotating shaft shell sleeves a rod body of the rotating shaft rod, the edge of the stress disc is longitudinally connected with damping shafts, and the damping shafts are circumferentially distributed around the edge of the stress disc. The relay plate is fixedly connected with the bottom of the damping shaft, the spiral stirring vane is of a smooth curved surface, the longitudinal distance between every two adjacent vanes of the spiral stirring vane is the same, and the diffusion vane is arranged above the spiral stirring vane. Therefore, the damage to aquatic organisms is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment equipment, and particularly relates to a wide-channel cutter suction ecological dredge pump. Background Art

[0002] A dredge pump is a device specifically used for cleaning and transporting sediment, deposits, and other particulate matter. It is commonly used in industries such as water conservancy, river dredging, mining, and environmental protection to clean underwater sediments or sludge. The working principle of a dredge pump is to suck and discharge sediment or sludge from the bottom of the water through the suction and discharge functions of the pump body and transport it to a designated place. A hydraulic dredge pump uses a hydraulic system to provide power and can efficiently clean sediment in deep water areas, commonly seen in dredging operations. Driven by electricity, it is suitable for relatively shallow water areas and is often used for cleaning small rivers, lakes, or ponds. A dredge pump generally consists of a pump body, a power system, a suction pipe, and a discharge pipe, and can operate in various complex environments, such as deep water areas and waters with relatively fast flow rates.

[0003] However, the existing equipment often encounters the following problems during use:

[0004] (1) The rotating blades of traditional dredge pumps are usually prone to harming aquatic organisms, especially small aquatic animals such as fry, snails, and crayfish, due to structural or operational design problems. The debris generated after these small aquatic animals are crushed when entering the rotating blades will block the rotating blades and make it difficult for them to rotate at a normal speed.

[0005] (2) The vibration generated during the operation of traditional equipment will cause wear and failures of mechanical components, especially during underwater operations where the vibration is more significant.

[0006] (3) In traditional designs, when dealing with harder or larger debris (such as stones, branches, etc.), the equipment will become blocked or the rotational speed and power will decrease. Summary of the Invention

[0007] The main purpose of the present invention is to provide a wide-channel cutter suction ecological dredge pump, and the present invention solves at least one of the above problems to a certain extent.

[0008] To achieve the above purpose, the technical solution adopted by the present invention is:

[0009] A wide-channel cutter suction ecological dredge pump, comprising:

[0010] A pump body;

[0011] An inlet, and the inlet is annularly distributed and opened on the side wheel surface at the bottom of the pump body;

[0012] A rotating shaft housing, the rotating shaft housing is located inside the pump body, and the bottom end of the rotating shaft housing extends all the way to the surrounding area of the inlet;

[0013] A rotating shaft rod that penetrates through the driving space of the pump body, and a rotating shaft housing is sleeved on the rod body of the rotating shaft rod;

[0014] A stress disk that is sleeved on the middle part of the rotating shaft rod, and shock-absorbing shafts are longitudinally connected to the edge of the stress disk;

[0015] There are multiple shock-absorbing shafts, and the multiple shock-absorbing shafts are circumferentially distributed around the edge of the stress disk;

[0016] A relay plate that is fixedly connected to the bottom of the shock-absorbing shaft;

[0017] A spiral stirring blade that is sleeved on the bottom end of the rotating shaft rod, the spiral stirring blade has a smooth curved surface, and the longitudinal spacing between adjacent blades of the spiral stirring blade is the same;

[0018] A diffusion blade that is arranged above the spiral stirring blade, and the cross-section of the diffusion blade is an inwardly converging arc.

[0019] The diffusion blade further includes:

[0020] A main blade that is fixedly connected to the top of the spiral stirring blade;

[0021] There are multiple dispersion edges, and the multiple dispersion edges are radially distributed outward along the axis of the main blade;

[0022] A special-shaped crushing knife that is arranged between adjacent dispersion edges, the special-shaped crushing knife includes an inner blade and an outer blade, the inner blade faces the axis of the main blade, and the outer blade faces the inner wall of the pump body;

[0023] Extended knife strips that are randomly distributed on the surface of some of the special-shaped crushing knives;

[0024] An inclined groove is opened on the cutting edge surface of the extended knife strip.

[0025] The shock-absorbing shaft further includes:

[0026] An air cavity base that is fixedly arranged on the relay plate;

[0027] A stress rod that is sleeved on the top of the air cavity base;

[0028] An inner flow channel that is opened in the stress rod;

[0029] A spring that is sleeved on the rod body of the stress rod, and the bottom end of the spring is connected to the air cavity base;

[0030] The base shell wraps around the upper part of the stress rod, and the top end of the spring is connected to the air chamber base;

[0031] A hydraulic damper is provided in the inner cavity of the base shell.

[0032] The blade edge of the helical stirring blade has a curvature radius ≥ 5 mm.

[0033] The inner blade and the outer blade of the special-shaped crushing knife form a serrated staggered structure.

[0034] The blade surface of the helical stirring blade is designed to imitate the streamline of a fish body.

[0035] The inclined groove is a shark skin tooth-like structure.

[0036] The arc inward angle of the diffusion blade is 15°.

[0037] The dispersion edges are distributed in a spiral involute, and the distance between adjacent edges increases radially.

[0038] The water inlet is a strip-shaped grille.

[0039] Compared with the prior art, the beneficial effects of the present invention are:

[0040] (1) Through the use of streamlined helical stirring blades and smooth blade surfaces in the design of the present invention, the sharp impact of water flow is reduced, thereby avoiding harm to aquatic organisms. Especially when the blades come into contact with the water body, it can ensure a relatively gentle water flow push, protecting the safety of aquatic products. While ensuring the sustainability of the ecological environment, it ensures that the blades can carry out normal cleaning and sediment excavation at the bottom of the water.

[0041] (2) The present invention designs a shock-absorbing shaft, a stress disc and a spring air chamber system to relieve the vibration generated during the operation of the equipment. The distribution of multiple shock-absorbing shafts ensures the all-round relief of the equipment vibration, preventing damage to the pump body and other mechanical components caused by excessive vibration.

[0042] (3) Special-shaped crushing knives and extended knife strips are designed. These knives can efficiently handle hard objects and sundries, ensuring that the pump body will not be blocked by obstacles in the water. At the same time, the design of the diffusion blades ensures the uniform dispersion of materials, preventing blockage or excessive pressure. It improves the processing capacity of the pump body, can cope with more complex working environments and diverse water materials, greatly improves the working efficiency, and reduces the downtime. Description of the Drawings

[0043] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the specific embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention.

[0044] Figure 1 This is a schematic diagram of the overall shape of the present invention.

[0045] Figure 2 This is a schematic cross-sectional view of the present invention.

[0046] Figure 3 This is a structural diagram of the interior of the present invention.

[0047] Figure 4 This is a schematic diagram of the diffusion rotary blade structure of the present invention.

[0048] Figure 5 This is a schematic diagram of the shock-absorbing shaft structure of the present invention.

[0049] Reference numerals in the figure: 1, pump body; 2, water inlet; 3, rotating shaft housing; 4, rotating shaft rod; 5, stress disk; 6, shock-absorbing shaft; 7, relay plate; 8, spiral stirring rotary blade; 9, diffusion rotary blade; 91, main rotary blade; 92, dispersion edge; 93, special-shaped crushing knife; 931, inner blade; 932, outer blade; 94, extended knife bar; 95, inclined groove; 61, air chamber base; 62, stress rod; 63, inner flow channel; 64, spring; 65, base housing; 66, hydraulic damper. Specific embodiments

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0051] In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, the terms "set", "arrange", "connected", and "coupled" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0052] As Figures 1-5 shown, the present invention provides a wide-channel cutter suction ecological dredging pump. The shock-absorbing cutter suction ecological dredging pump includes a pump body 1, a water inlet 2, a rotating shaft housing 3, a rotating shaft rod 4, a stress disk 5, a shock-absorbing shaft 6, a relay plate 7, a spiral stirring rotary blade 8, and a diffusion rotary blade 9.

[0053] On the bottom side of the pump body 1, there are annularly distributed water inlets 2, and the water inlets 2 are strip-shaped gratings; the water inlets 2 at the bottom of the pump body 1 are designed to be annularly distributed and equipped with strip-shaped gratings. Such a design can prevent larger objects or sundries such as waterweeds and mud from directly entering the pump body 1, protect the inside of the pump from being stuck or damaged, and ensure the normal operation of the pump. The rotating shaft housing 3 is located inside the pump body 1, and the bottom end of the rotating shaft housing 3 extends all the way to the surrounding area of the water inlet 2. The rotating shaft rod 4 penetrates the driving space of the pump body 1, and the rotating shaft housing 3 is sleeved on the rod body of the rotating shaft rod 4.

[0054] In the present invention, the stress disk 5 is sleeved on the middle part of the rotating shaft rod 4, and the shock-absorbing shafts 6 are longitudinally connected to the edge of the stress disk 5; the design of the stress disk 5 and the shock-absorbing shafts 6 inside the rotating shaft housing 3 is mainly to relieve the vibration generated when the pump body 1 contacts the bottom of the water. The vibration transmitted through the stress disk 5 can activate the shock-absorbing shafts 6 for effective buffering, avoiding damage to mechanical components caused by vibration. The distribution of multiple shock-absorbing shafts 6 can achieve 360-degree vibration relief, and the design of the air chamber base 61 and the spring 64 further enhances the shock-absorbing effect. Especially the interaction between the spring 64 and the air chamber base 61 provides a buffer zone for vibration, reducing the impact force that may be generated when the water pump falls or vibrates.

[0055] In the present invention, multiple shock-absorbing shafts 6 are provided, and the multiple shock-absorbing shafts 6 are circumferentially distributed around the edge of the stress disk 5. The relay plate 7 is fixedly connected to the bottom of the shock-absorbing shaft 6. The spiral stirring blade 8 is sleeved on the bottom end of the rotating shaft rod 4. The spiral stirring blade 8 has a smooth curved surface. The longitudinal spacing between adjacent blades of the spiral stirring blade 8 is the same. The radius of curvature of the edge of the blade of the spiral stirring blade 8 is ≥5 mm. The blade surface of the spiral stirring blade 8 is designed in the streamline shape of a fish body; the design of the spiral stirring blade 8 is inspired by the streamline shape of a fish body, which can effectively generate axial thrust, push the water flow while avoiding damage to aquatic products such as fry. The design of the smooth curved surface avoids the appearance of sharp edges, so that the blade causes less damage to aquatic products when pushing the water flow.

[0056] In the present invention, the spacing between the blades is the same to ensure that aquatic products have enough space to move and avoid excessive pressure. At the same time, the spiral design can gradually push the water flow to the outlet of the pump through a progressive pushing method, so as not to cause sudden water flow impact. The diffusion blade 9 is arranged above the spiral stirring blade 8. The cross-section of the diffusion blade 9 is an inwardly concave arc, and the inward concave angle of the arc of the diffusion blade 9 is 15°. The design of the diffusion blade 9 can effectively disperse the material evenly and reduce the impact of the material on the blades inside the pump. At the same time, the design of the dispersion edge 92 and the special-shaped crushing knife 93 can handle relatively hard sundries in the water, such as stones or wooden blocks. The design of the inner and outer blades 932 of the special-shaped crushing knife 93 ensures the efficient shredding of sundries, thereby reducing the blockage problem that occurs inside the pump.

[0057] In the present invention, for the diffusion rotary blade 9, it further includes a main rotary blade 91 fixedly connected to the top of the spiral stirring rotary blade 8. A plurality of dispersion edges 92 are provided, and the plurality of dispersion edges 92 are radially distributed outward along the axis of the main rotary blade 91. The dispersion edges 92 are distributed in a spiral involute, and the distance between adjacent edges increases radially. The special-shaped crushing knife 93 is arranged between adjacent dispersion edges 92. The special-shaped crushing knife 93 includes an inner blade 931 and an outer blade 932. The inner blade 931 faces the axis of the main rotary blade 91, and the outer blade 932 faces the inner wall of the pump body 1. The inner blade 931 and the outer blade 932 of the special-shaped crushing knife 93 form a serrated staggered structure. The extended knife strips 94 are randomly distributed on the surface of some special-shaped crushing knives 93. The blade surface of the extended knife strips 94 is provided with inclined grooves 95, and the inclined grooves 95 are shark-skin tooth-like structures.

[0058] In the present invention, for the shock-absorbing shaft 6, it further includes an air chamber base 61 fixedly arranged on the relay plate 7. A stress rod 62 is sleeved on the top of the air chamber base 61. An inner flow channel 63 is opened in the stress rod 62. A spring 64 is sleeved on the rod body of the stress rod 62. The bottom end of the spring 64 is connected to the air chamber base 61. A base shell 65 covers the upper part of the stress rod 62. The top end of the spring 64 is connected to the air chamber base 61. A hydraulic damper 66 is arranged in the inner cavity of the base shell 65. The function of the hydraulic damper 66 is to provide stability for the spring 64, prevent excessive compression or excessive rebound of the spring 64, and thus control the vibration amplitude when the pump body 1 vibrates. The damper, in cooperation with the spring 64, plays a buffering and stabilizing role.

[0059] It should be noted that for a wide-channel cutter suction ecological dredging pump designed by the present invention, during use, after the pump body 1 is lowered to the bottom of the water and the bottom end of the pump body 1 touches the bottom, the rotating shaft rod 4 in the driving space will receive vibration, and the stress disk 5 on the shell body of the rotating shaft shell 3 will be vibrated. The vibration will be transmitted to the shock-absorbing shaft 6 longitudinally arranged at the bottom edge of the stress disk 5. The top end of the air chamber base 61 in the shock-absorbing shaft 6 will slide in the inner flow channel 63 of the stress rod 62. During the sliding process, the air chamber base 61 will squeeze the spring 64 outside the stress rod 62. The movement of the spring 64 and the air chamber base 61 will provide buffering for the falling vibration of the pump body 1. The damper in the inner cavity of the base shell 65 above the stress rod 62 will provide stability for the extrusion of the spring 64. After the rotating shaft rod 4 is started, the spiral stirring rotary blade 8 at the front end of the rotating shaft rod 4 in the pump body 1 will rotate and generate. When the spiral stirring rotary blade 8 rotates, the blade will generate an axial thrust in the water flow. The rotation of the spiral will cause the water flow and small aquatic products such as fry in it to be gradually pushed to the outlet of the pump along the path of the spiral. The rotation speed of the spiral stirring rotary blade 8 is the same as the designed spacing of the blades, so that the fish have enough living space during the propulsion process and will not be subjected to excessive pressure or harm. The blades are designed as smooth curved surfaces to avoid direct contact between sharp edges and the fish body. Once aquatic plants or hard foreign objects are inhaled, since they are not easily discharged, the spiral upward force will transport these foreign objects to the upper diffusion rotary blade 9. The cross-section of the diffusion rotary blade 9 has inwardly converging arcs on both sides. In addition, the main rotary blade 91 has a plurality of dispersed edges 92 spreading from the axis to the periphery. The dispersed edges 92 will push the material towards the peripheral edge of the main rotary blade 91 during rotation. An abnormal crushing knife 93 is provided between every two adjacent dispersed edges 92. For hard stones, the inner blade 931 of the abnormal crushing knife 93 faces between two adjacent dispersed edges 92 and can perform the first-stage shredding of the pushed material. The outer blade 932 of the abnormal crushing knife 93 will perform the second-stage shredding of the material dispersed around the main rotary blade 91. For complicated aquatic plants, because the extended knife strip 94 is provided with inclined grooves 95, the cutting edge of the knife strip is increased, and the extended knife strip 94 added to some abnormal crushing knives 93 can provide an additional shredding.

[0060] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it is understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wide-channel cutter suction ecological dredging pump, characterized in that, Comprising: Pump body (1); Water inlet (2), the water inlet (2) is annularly distributed and opened on the side wheel surface at the bottom of the pump body (1); Rotating shaft housing (3), the rotating shaft housing (3) is located inside the pump body (1), and the bottom end of the rotating shaft housing (3) extends all the way to the surrounding range of the water inlet (2); Rotating shaft rod (4), the rotating shaft rod (4) penetrates through the driving space of the pump body (1), and the rotating shaft housing (3) is sleeved on the rod body of the rotating shaft rod (4); Stress disc (5), the stress disc (5) is sleeved on the middle part of the rotating shaft rod (4), and damping shafts (6) are longitudinally connected to the edge of the stress disc (5); There are multiple damping shafts (6), and the multiple damping shafts (6) are circumferentially distributed around the edge of the stress disc (5); Relay plate (7), the relay plate (7) is fixedly connected to the bottom of the damping shaft (6); Spiral stirring blade (8), the spiral stirring blade (8) is sleeved on the bottom end of the rotating shaft rod (4), the spiral stirring blade (8) has a smooth curved surface, and the longitudinal spacing between adjacent blades of the spiral stirring blade (8) is the same; Diffusion blade (9), the diffusion blade (9) is arranged above the spiral stirring blade (8), and the cross section of the diffusion blade (9) is an inwardly converging arc.

2. The wide-channel cutter suction ecological dredging pump according to claim 1, characterized in that, The diffusion blade (9) further includes: Main blade (91), the main blade (91) is fixedly connected to the top of the spiral stirring blade (8); Dispersion edges (92), there are multiple dispersion edges (92), and the multiple dispersion edges (92) are radially distributed outward along the axis of the main blade (91); Special-shaped crushing knife (93), the special-shaped crushing knife (93) is arranged between adjacent dispersion edges (92), the special-shaped crushing knife (93) includes an inner blade (931) and an outer blade (932), the inner blade (931) faces the axis of the main blade (91), and the outer blade (932) faces the inner wall of the pump body (1); Extended knife strips (94), the extended knife strips (94) are randomly distributed on the surface of some of the special-shaped crushing knives (93); Oblique grooves (95), the oblique grooves (95) are opened on the blade surface of the extended knife strips (94).

3. The ecological cutter suction dredging pump with a wide flow channel according to claim 1, characterized in that The damping shaft (6) further includes: Air chamber base (61), the air chamber base (61) is fixedly arranged on the relay plate (7); Stress rod (62), the stress rod (62) is sleeved on the top of the air chamber base (61); Inner flow channel (63), the inner flow channel (63) is opened in the stress rod (62); Spring (64), the spring (64) is sleeved on the rod body of the stress rod (62), and the bottom end of the spring (64) is connected to the air chamber base (61); Base shell (65), the base shell (65) covers the upper part of the stress rod (62), and the top end of the spring (64) is connected to the air chamber base (61); Hydraulic damper (66), the hydraulic damper (66) is arranged in the inner cavity of the base shell (65).

4. The ecological cutter suction dredging pump with wide flow channel according to claim 1, characterized in that, The radius of curvature of the edge of the blade of the spiral stirring blade (8) ≥ 5 mm.

5. The wide-flow-channel cutter suction ecological dredging pump according to claim 2, characterized in that The inner blade (931) and the outer blade (932) of the special-shaped crushing knife (93) form a serrated staggered structure.

6. The ecological cutter suction dredger pump with wide flow channel according to claim 1, characterized in that, The blade surface of the spiral stirring vane (8) is designed to imitate the streamline of a fish body.

7. The ecological cutter suction dredging pump with wide flow channel according to claim 2, characterized in that, The inclined groove (95) is a sharkskin tooth-like structure.

8. The wide-channel cutter suction ecological dredging pump according to claim 1, characterized in that, The arc inward contraction angle of the diffusion vane (9) is 15°.

9. The ecological cutter suction dredger pump with a wide flow channel according to claim 2, characterized in that The dispersion ridges (92) are distributed in a spiral involute, and the distance between adjacent ridges increases radially.

10. The ecological cutter suction dredging pump with a wide flow channel according to claim 1, characterized in that, The water inlet (2) is provided with a strip-shaped grille.

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