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CN-224213409-U - Drag head device with detachable drag teeth

CN224213409UCN 224213409 UCN224213409 UCN 224213409UCN-224213409-U

Abstract

The utility model belongs to the technical field of trailing suction hopper dredgers, and particularly discloses a rake head device with detachable rake teeth, which comprises a plurality of rake teeth, wherein rake tooth bases are respectively and fixedly connected with each rake tooth, each rake tooth base is detachably arranged on a flushing rotating shaft through bolts, the flushing rotating shaft is fixedly connected with one end of a fixed crank, the other end of the fixed crank is arranged on a rake plate, a plurality of bolt mounting holes I are formed in the fixed crank, a plurality of bolt mounting holes II are formed in the rake plate, 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. According to the utility model, the modularized rake teeth are detachably arranged on the flushing rotating shaft through the bolts, when the rake teeth are damaged, the damaged modularized rake teeth are replaced, and then the angle of the rake teeth is finely adjusted through adjusting the angle of the fixed crank, so that the best use effect is achieved.

Inventors

  • JIANG ZHIHANG
  • SHAO MIN

Assignees

  • 上海英梵乐环境科技有限公司

Dates

Publication Date
20260508
Application Date
20250513

Claims (5)

  1. 1. The rake head device with detachable rake teeth is characterized by comprising a plurality of rake teeth (1), wherein each rake tooth (1) is fixedly connected with a rake tooth base (2) respectively, and each rake tooth base (2) is detachably arranged on a flushing rotating shaft (3) through bolts respectively; The multifunctional flushing device is characterized in that one end of a fixed crank (4) is fixedly connected with a flushing rotating shaft (3), the other end of the fixed crank (4) is installed on a harrow plate (5), a plurality of first bolt installation holes are formed in the fixed crank (4), a plurality of second bolt installation holes (501) are formed in the harrow plate (5), and bolts are connected between the first bolt installation holes of the fixed crank (4) and the second bolt installation holes (501) of the harrow plate (5) and are locked through nuts.
  2. 2. The drag head device with detachable drag teeth according to claim 1, wherein the first bolt mounting holes are distributed in an arc shape, the second bolt mounting holes (501) are distributed in an arc shape, and the radius of the arc section corresponding to the first bolt mounting holes in the arc shape is the same as the radius of the arc section corresponding to the second bolt mounting holes (501) in the arc shape.
  3. 3. A drag head arrangement with detachable drag teeth according to claim 1, characterized in that the number of bolt mounting holes two (501) is larger than the number of bolt mounting holes one.
  4. 4. A drag head device with detachable drag teeth according to claim 1, characterized in that the flushing rotating shaft (3) is arranged as a half shaft, the flushing rotating shaft (3) comprises a horizontal end surface and an arc surface, the horizontal end surface of the flushing rotating shaft (3) is fixedly connected with a flat plate (6), and the flat plate (6) is connected with the drag teeth base (2).
  5. 5. The rake head device with detachable rake teeth according to claim 4, wherein the rake teeth base (2) comprises a first connecting part and a second connecting part which are integrally arranged, an included angle between the first connecting part and the second connecting part is a, wherein a is not less than 45 degrees and not more than 60 degrees, the first connecting part is welded with the rake teeth (1), the first connecting part is connected with the flat plate (6) through a first bolt (7) and a second bolt (8), the first bolt (7) penetrates through the second connecting part and the flushing rotating shaft (3), and the second bolt (8) penetrates through the second connecting part and the flat plate (6).

Description

Drag head device with detachable drag teeth Technical Field The utility model relates to the technical field of trailing suction hopper dredgers, in particular to a drag head device with detachable rake teeth. Background The suction dredger is a large ship specially used for dredging engineering, and is mainly used for cleaning silt, sand and other sediments in channels, ports, lakes or rivers so as to maintain the navigation capacity of water areas or perform engineering such as sea filling and land building. The drag suction dredger loosens sediment at the bottom of water through a drag head device, and then the powerful suction pump is used for sucking mud into the cabin. The rake teeth and the rake plate of the traditional rake head device are welded and fixed, the rake teeth are fixed and not detachable, and single teeth are damaged and need to be replaced integrally, so that larger resource waste is caused, and the use cost is increased. Disclosure of utility model The utility model aims to solve the technical problems in the background art, and provides a drag head device with detachable drag teeth. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The rake head device comprises a plurality of rake teeth, wherein each rake tooth is fixedly connected with a rake tooth base respectively, and each rake tooth base is detachably arranged on a flushing rotating shaft through bolts respectively; The flushing rotary shaft is fixedly connected with one end of the fixed crank, the other end of the fixed crank is arranged on the harrow plate, a plurality of first bolt mounting holes are formed in the fixed crank, a plurality of second bolt mounting holes are formed in the harrow plate, and bolts are connected between the first bolt mounting holes of the fixed crank and the second bolt mounting holes of the harrow plate and locked through nuts. The technical scheme is that the first bolt mounting holes are distributed in an arc shape, the second bolt mounting holes are distributed in an arc shape, and the radius of the arc section corresponding to the first bolt mounting holes in the arc shape is the same as the radius of the arc section corresponding to the second bolt mounting holes in the arc shape. The following is a further defined technical solution of the present utility model, where the number of the second bolt mounting holes is greater than the number of the first bolt mounting holes. The technical scheme is characterized in that the flushing rotating shaft is a half shaft, the flushing rotating shaft comprises a horizontal end face and an arc face, the horizontal end face of the flushing rotating shaft is fixedly connected with a flat plate, and the flat plate is connected with the rake tooth base. The rake tooth base comprises a first connecting part and a second connecting part which are integrally arranged, wherein an included angle between the first connecting part and the second connecting part is a, an angle of a is more than or equal to 45 degrees and less than or equal to 60 degrees, the first connecting part is welded with the rake teeth, the second connecting part is connected with the flat plate through a first bolt and a second bolt, and the first bolt penetrates through the second connecting part and the flushing rotating shaft, and the second bolt penetrates through the second connecting part and the flat plate. Compared with the prior art, the utility model has the following technical effects: According to the utility model, the modularized rake teeth are detachably arranged on the flushing rotating shaft through the bolts, when the rake teeth are damaged, the damaged modularized rake teeth are replaced, and then the angle of the rake teeth is finely adjusted through adjusting the angle of the fixed crank, so that the best use effect is achieved. The utility model will be further described with reference to the drawings and examples. Drawings In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the embodiments or the drawings needed in the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art. Fig. 1 is a schematic structural view of the present utility model. Reference numeral 1, rake teeth; 2, a rake tooth base, 3, a flushing rotating shaft, 4, a fixed crank, 5, a rake plate, 501, a bolt mounting hole II, 6, a flat plate, 7, a bolt I, 8 and a bolt II. Detailed Description In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numer