Rake head device with detachable rake teeth

Abstract

The utility model belongs to the technical field of trailing suction dredgers, and particularly discloses a rake head device with detachable rake teeth, which comprises a plurality of rake teeth, each rake tooth is fixedly connected with a rake tooth base, and each rake tooth base is detachably mounted on a flushing rotating shaft through a bolt; the flushing rotating shaft is fixedly connected with one end of the fixed crank, the other end of the fixed crank is mounted on the rake plate, the fixed crank is provided with a plurality of bolt mounting holes I, the rake plate is provided with a plurality of bolt mounting holes II, and bolts are connected between the bolt mounting holes I of the fixed crank and the bolt mounting holes II of the rake plate and are locked through nuts. The modular rake teeth are detachably mounted on the flushing rotating shaft through the bolts, and when the rake teeth are damaged, only one group of damaged modular rake teeth needs to be replaced; and the angle of the rake teeth is finely adjusted by adjusting the angle of the fixed crank, so that the optimal use effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of trailing suction dredger technology, and in particular to a rake head device with detachable rake teeth. Background Technology

[0002] A trailing suction hopper dredger is a large vessel specifically designed for dredging projects. It is primarily used to remove silt, sand, and other sediments from waterways, ports, lakes, or rivers to maintain navigation or for land reclamation projects. The dredger uses a skid head to loosen sediment at the bottom of the water, and then a powerful suction pump draws the sludge into the hull.

[0003] In traditional rake heads, the rake teeth are welded and fixed to the rake plate. The teeth are fixed and cannot be disassembled. If a single tooth is damaged, the entire device must be replaced, resulting in a significant waste of resources and increasing the cost of use. Utility Model Content

[0004] The purpose of this invention is to solve the technical problems existing in the background art. To this end, a rake head device with detachable rake teeth is provided.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A rake head device with detachable rake teeth includes multiple rake teeth, each of which is fixedly connected to a rake tooth base, and each of which is detachably mounted on a flushing shaft by bolts.

[0007] The flushing shaft is fixedly connected to one end of the fixed crank, and the other end of the fixed crank is mounted on the rake plate. The fixed crank has multiple bolt mounting holes 1, and the rake plate has multiple bolt mounting holes 2. Bolts are connected between the bolt mounting holes 1 of the fixed crank and the bolt mounting holes 2 of the rake plate and are locked with nuts.

[0008] The following is a further technical solution of this utility model: the plurality of bolt mounting holes one are distributed in an arc shape, the plurality of bolt mounting holes two are distributed in an arc shape, and the radius of the arc segment corresponding to the plurality of bolt mounting holes one in the arc shape is the same as the radius of the arc segment corresponding to the plurality of bolt mounting holes two in the arc shape.

[0009] The following is a further defined technical solution of this utility model: the number of bolt mounting holes two is greater than the number of bolt mounting holes one.

[0010] The following is a further defined technical solution of this utility model: the flushing shaft is configured as a half-shaft type, the flushing shaft includes a horizontal end face and an arc-shaped surface, the horizontal end face of the flushing shaft is fixedly connected to a plate, and the plate is connected to the rake tooth base.

[0011] The following is a further defined technical solution of this utility model: the rake tooth base includes an integrally formed connecting part one and a connecting part two, the included angle between the connecting part one and the connecting part two is α, wherein 45°≤α≤60°, the connecting part one is welded to the rake tooth, and the connecting part two is connected to the plate by bolt one and bolt two, wherein bolt one penetrates the connecting part two and the flushing shaft, and bolt two penetrates the connecting part two and the plate.

[0012] Compared with the prior art, the present invention has the following technical effects:

[0013] This invention uses bolts to detachably install modular rake teeth onto the flushing shaft. When the rake teeth are damaged, the damaged set of modular rake teeth can be replaced. The angle of the rake teeth can be finely adjusted by adjusting the angle of the fixed crank to achieve the best performance.

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments or the prior art 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.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Reference numerals in the attached diagram: 1. Rake teeth; 2. Rake tooth base; 3. Flushing shaft; 4. Fixing crank; 5. Rake plate; 501. Bolt mounting hole two; 6. Flat plate; 7. Bolt one; 8. Bolt two. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should be understood that the terms "a" and "b" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "a" or "b" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0022] like Figure 1 As shown, this embodiment provides a rake head device with detachable rake teeth, mainly composed of rake teeth 1, rake tooth base 2, flushing shaft 3, fixing crank 4, rake plate 5, etc. The rake teeth 1 are welded to the rake tooth base 2 to form a complete modular rake tooth 1 (rake teeth 1 + rake tooth base 2). Several modular rake teeth 1 are detachably installed on the flushing shaft 3 of the rake head by bolts. The angle of the rake teeth 1 is then finely adjusted by adjusting the angle of the fixing crank 4 to achieve the best performance.

[0023] like Figure 1As shown, each rake tooth 1 is fixedly connected to a rake tooth base 2. One rake tooth 1 and one rake tooth base 2 constitute a modular rake tooth 1, and the rake head device has multiple sets of modular rake teeth 1. Each rake tooth base 2 is detachably mounted on the flushing shaft 3 by bolts. Specifically, the flushing shaft 3 is set as a half-shaft type, and the flushing shaft 3 includes a horizontal end face and an arc-shaped surface. The horizontal end face of the flushing shaft 3 is fixedly connected to a plate 6, and the plate 6 is connected to the rake tooth base 2. The rake tooth base 2 includes an integrally formed connecting part one and a connecting part two, with an included angle of 60° between the connecting part one and the connecting part two. The connecting part one is welded to the rake tooth 1, and the connecting part two is connected to the plate 6 by bolt one 7 and bolt two 8. Bolt one 7 passes through the connecting part two and the flushing shaft 3, and bolt two 8 passes through the connecting part two and the plate 6. When the rake tooth 1 is damaged, bolt one 7 and bolt two 8 are loosened, and the damaged set of modular rake teeth 1 is replaced without replacing the entire rake head.

[0024] like Figure 1 As shown, the flushing shaft 3 is fixedly connected to the lower right end of the fixed crank 4, and the upper left end of the fixed crank 4 is mounted on the rake plate 5. The fixed crank 4 has four bolt mounting holes (first type), and the rake plate 5 has six bolt mounting holes (second type, 501). Bolts are connected one-to-one between the four bolt mounting holes (first type) of the fixed crank 4 and the four bolt mounting holes (second type, 501) of the rake plate 5, and are locked in place by nuts. When it is necessary to adjust the installation angle of the fixed crank 4, the nuts are loosened, changing the correspondence between the four bolt mounting holes (first type) of the fixed crank 4 and the four bolt mounting holes (second type, 501) of the rake plate 5, thereby adjusting the installation angle of the fixed crank 4. The four bolt mounting holes (first type) are arranged in an arc shape, and the six bolt mounting holes (second type, 501) are also arranged in an arc shape. The radius of the arc segment corresponding to the four bolt mounting holes (first type) is the same as the radius of the arc segment corresponding to the six bolt mounting holes (second type, 501).

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model using the disclosed methods and techniques, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Therefore, all equivalent changes made based on the shape, structure, and principle of this utility model without departing from its technical solution should be covered within the protection scope of this utility model.

Claims

1. A rake head device with detachable rake teeth, characterized in that, It includes multiple rake teeth (1), each of the rake teeth (1) is fixedly connected to a rake tooth base (2), and each of the rake tooth bases (2) is detachably mounted on the flushing shaft (3) by bolts; The flushing shaft (3) is fixedly connected to one end of the fixed crank (4), and the other end of the fixed crank (4) is installed on the rake plate (5). The fixed crank (4) has multiple bolt mounting holes 1, and the rake plate (5) has multiple bolt mounting holes 2 (501). Bolts are connected between the bolt mounting holes 1 of the fixed crank (4) and the bolt mounting holes 2 (501) of the rake plate (5) and are locked by nuts.

2. The rake head device with detachable rake teeth as described in claim 1, characterized in that, The multiple bolt mounting holes 1 are arranged in an arc shape, and the multiple bolt mounting holes 2 (501) are arranged in an arc shape. The radius of the arc segment corresponding to the multiple bolt mounting holes 1 in the arc shape is the same as the radius of the arc segment corresponding to the multiple bolt mounting holes 2 (501) in the arc shape.

3. The rake head device with detachable rake teeth as described in claim 1, characterized in that, The number of bolt mounting holes 2 (501) is greater than the number of bolt mounting holes 1.

4. The rake head device with detachable rake teeth as described in claim 1, characterized in that, The flushing shaft (3) is configured as a half-shaft type. The flushing shaft (3) includes a horizontal end face and an arc-shaped surface. The horizontal end face of the flushing shaft (3) is fixedly connected to a plate (6). The plate (6) is connected to the rake tooth base (2).

5. A rake head device with detachable rake teeth as described in claim 4, characterized in that, The rake tooth base (2) includes an integrally formed connecting part one and a connecting part two. The included angle between the connecting part one and the connecting part two is a, wherein 45°≤a≤60°. The connecting part one is welded to the rake tooth (1). The connecting part two is connected to the plate (6) by bolt one (7) and bolt two (8). Bolt one (7) passes through the connecting part two and the flushing shaft (3), and bolt two (8) passes through the connecting part two and the plate (6).

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