Anti-entanglement dredging auger

Abstract

The present invention discloses an anti-entanglement dredging auger, comprising: a wheel hub, the axis of the wheel hub is a first axis; a base ring, the base ring and the wheel hub are arranged at intervals along the first axis, and the axis of the base ring is also the first axis; a blade arm, one end of the blade arm is fixedly connected to the wheel hub, the other end of the blade arm is fixedly connected to the base ring, and the outer side of the blade arm is a continuous first blade. The anti-entanglement dredging auger is provided with a continuous first blade on the blade arm. During construction, the auger is first lowered to the mud layer. When it is lowered to the designated position, the auger is rotated to make the first blade on the blade arm cut and stir the mud layer. During the cutting and stirring process, since the first blade is in a continuous linear shape, it will not hook on sundries such as steel bars to cause the auger to entangle.

Description

Technical Field

[0001] The invention relates to the technical field of dredging engineering, and in particular to an anti-winding dredging auger. Background Art

[0002] At present, in the dredging industry, cutters are mainly used for excavation and dredging of underwater soil. Various geological conditions are encountered during dredging operations.

[0003] Most of the existing cutters are toothed cutters with teeth. In special working conditions where there is a lot of garbage in the mud layer, a lot of garbage in the mud layer will be entangled on the blade, causing the cutter head to get stuck and unable to rotate, stopping the operation, and seriously affecting the dredging construction efficiency. Summary of the invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies and provide an anti-entanglement dredging cutter, which uses a continuous linear blade to replace the traditional non-continuous linear teeth, thereby solving the problem of garbage entanglement in the cutter head during dredging operations.

[0005] In order to achieve the above technical purpose, the technical solution of the present invention provides an anti-entanglement dredging reamer, comprising:

[0006] A wheel hub, wherein the axis of the wheel hub is a first axis;

[0007] A base ring, wherein the base ring and the hub are spaced apart along the first axis, and the axis of the base ring is also the first axis;

[0008] A knife arm, one end of which is fixedly connected to the wheel hub, the other end of which is fixedly connected to the base ring, and the outer side of the knife arm is a continuous first knife edge.

[0009] Compared with the prior art, the beneficial effects of the present invention include: the anti-entanglement dredging auger is provided with a continuous first blade on the blade arm. During construction, the auger is first lowered to the mud layer. When it is lowered to the designated position, the auger is rotated to make the first blade on the blade arm cut and stir the mud layer. During the cutting and stirring process, since the first blade is in a continuous linear shape, it will not hook on debris such as steel bars and cause the auger to be entangled. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the anti-entanglement dredging reamer provided by the present invention;

[0011] Figure 2 yes Figure 1 A schematic diagram of the top view structure of ;

[0012] Figure 3 yes Figure 1 Schematic diagram of the structure from the top view. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0014] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0016] See also Figure 1 , Figure 2 , Figure 3 This embodiment provides an anti-entanglement dredging auger, including: a hub 1, a base ring 2, and a cutter arm 3.

[0017] The axis of the wheel hub 1 is a first axis. In this embodiment, the wheel hub 1 is cylindrical.

[0018] The base ring 2 and the wheel hub 1 are spaced apart along the first axis, and the axis of the base ring 2 is also the first axis, and the inner diameter of the base ring 2 is greater than the outer diameter of the wheel hub 1 .

[0019] One end of the blade arm 3 is fixedly connected to the wheel hub 1, and the other end of the blade arm 3 is fixedly connected to the base ring 2, and the outer side of the blade arm 3 is a continuous first blade 3a. Specifically, one end of the blade arm 3 is welded and fixed to the wheel hub 1, and the other end of the blade arm 3 is welded and fixed to the base ring 2.

[0020] The anti-entanglement dredging auger is provided with a continuous first blade 3a on the blade arm 3. During construction, the auger is first lowered to the mud layer. When it is lowered to the specified position, the auger is rotated to make the first blade 3a on the blade arm 3 cut and stir the mud layer. During the cutting and stirring process, since the first blade 3a is in a continuous linear shape, it will not hook on debris such as steel bars and cause the auger to be entangled.

[0021] Furthermore, there are at least two knife arms 3, and each knife arm 3 is evenly arranged along the circumference of the base ring 2. In this embodiment, there are six knife arms 3, and the six knife arms 3 are arranged in a circular array with the first axis as the axis.

[0022] Specifically, the inner and outer contours of the blade arm 3 both rise in a counterclockwise spiral, and the inner and outer contours of the blade arm 3 follow the spatial curve equation:

[0023]

[0024]

[0025] The curve equation provided above is only an example. In actual production design, the constant parameters of the curve equation can be modified according to the actual design dimensions.

[0026] Furthermore, a rotating surface formed by at least one of the first blades 3a with the first axis as the axis is sleeved on a rotating surface formed by another of the first blades 3a with the first axis as the axis. It can be understood that the rotating surfaces generated by the first blades 3a on each of the blade arms 3 are not all coplanar, and the rotating surfaces generated by at least two of the first blades 3a are completely non-coplanar.

[0027] The generated rotating surface is located at the outermost side of the first blade 3a which is not sharpened, and at least one of the first blades 3a is sharpened. The unsharpened first blade 3a is defined here as the first outer blade 3a1, and the sharpened first blade 3a is defined as the second outer blade 3a2. There are three blade arms 3 with the first outer blade 3a1, and there are also three blade arms 3 with the second outer blade 3a2. The blade arms 3 with the first outer blade 3a1 and the blade arms with the second outer blade 3a2 are arranged at intervals.

[0028] During the operation and rotation of the reamer, the unsharpened first outer blade 3a1 contacts the soil first, thereby avoiding the wear of the blade. The first outer blade 3a1 contacts the soil later, and the soil and stones with higher strength are cut first by the unsharpened first outer blade 3a1. Only other objects with high elasticity or toughness will be cut by the sharpened second outer blade 3a2. The above structure cleverly splits the first blade 3a into two levels with rotating surfaces nested in each other, which reduces the wear of the sharpened second outer blade 3a2 and also plays a better role in cutting off entanglements.

[0029] The anti-entanglement dredging auger also includes a stone prevention ring 4, which is arranged between the hub 1 and the base ring 2, and the axis of the stone prevention ring 4 is the first axis. Each of the cutter arms 3 is fixedly connected to the stone prevention ring 4. There are multiple stone prevention rings 4, and the multiple stone prevention rings 4 are arranged in sequence along the first axis. The stone prevention ring 4 effectively blocks excessively large stones, concrete blocks and other debris to prevent them from being sucked into the auger and causing the suction port and mud pump to be stuck.

[0030] Furthermore, the inner side of the blade arm 3 is a continuous second blade, but the drawings provided in this embodiment do not show this structure. In the drawings of this embodiment, the second blade is not set, so the outer peripheral surface of the stone protection ring 4 is directly welded and fixed to the groove opened on the inner side of the blade arm 3 (the position where the second blade is set). If a continuous second blade is opened on the inner side of the blade arm 3, the stone protection ring 4 cannot be connected to the position shown in the figure. At this time, the stone protection ring 4 should be connected to the position between the first blade 3a and the second blade.

[0031] Working principle: The anti-entanglement dredging auger is provided with a continuous first blade 3a on the blade arm 3. During construction, the auger is first lowered to the mud layer. When it is lowered to the specified position, the auger is rotated to make the first blade 3a on the blade arm 3 cut and stir the mud layer. During the cutting and stirring process, since the first blade 3a is in a continuous linear shape, it will not hook on debris such as steel bars and cause the auger to be entangled.

[0032] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An anti-entanglement dredging cutter, characterized in that: The continuous linear blade is used to replace the traditional non-continuous linear blade teeth, including: A wheel hub, wherein the axis of the wheel hub is a first axis; A base ring, wherein the base ring and the hub are spaced apart along the first axis, and the axis of the base ring is also the first axis; A knife arm, one end of which is fixedly connected to the wheel hub, the other end of which is fixedly connected to the base ring, and the outer side of the knife arm is a continuous first knife edge; There are at least two blade arms, and the two or more blade arms are evenly arranged along the circumference of the base ring; At least one of the first blades has a rotation surface formed with the first axis as the axis sleeved on a rotation surface formed with another of the first blades having the first axis as the axis; The generated rotating surface is located at the outermost first blade which is not sharpened; At least one of the first blades is sharpened; The anti-entanglement dredging auger also includes a stone protection ring, which is arranged between the wheel hub and the base ring, and the axis of the stone protection ring is the first axis. Each of the knife arms is fixedly connected to the stone protection ring.

2. The anti-entanglement dredging cutter according to claim 1, characterized in that: The inner side of the knife arm is a continuous second knife edge.

3. The anti-entanglement dredging cutter according to claim 1, characterized in that: There are multiple stone protection rings, and the multiple stone protection rings are arranged in sequence along the first axis at intervals.

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