A novel wear-resistant block device for a trailing suction hopper dredger

Abstract

This utility model discloses a novel wear-resistant block device for a trailing suction hopper dredger, belonging to the technical field of wear-resistant blocks. The novel wear-resistant block device for a trailing suction hopper dredger includes a wear-resistant structure disposed on the slider body. The wear-resistant structure includes: an upper wear-resistant structure fixed to the upper side of the slider body; and a lower wear-resistant structure fixed to the lower side of the slider body. The upper and lower wear-resistant structures form a non-welded modular assembly structure with the slider body. This utility model, by making the wear-resistant block detachable from the slider body, eliminates the need for welding to fix the wear-resistant block to the slider body, avoids considering the weld compatibility between the wear-resistant block and the slider body, allows for greater freedom in material selection for the wear-resistant block, focuses on wear resistance, and is more conducive to improving the service life of the wear-resistant block, extending the repair cycle, and reducing maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of wear-resistant block technology, and in particular to a novel sliding block wear-resistant block device for a trailing suction dredger. Background Technology

[0002] The slider of a trailing suction hopper dredger is the structure that drives the entire drag arm system to move up and down, and it has a wide range of applications. During dredging operations, the slider drives the drag head, drag arm pipe system, underwater pump, etc., to move up and down via rails, thereby transporting seabed sand and soil to the dredging tank.

[0003] As the end-connecting component of the rake arm pipe system, the wear-resistant block of the slider directly rubs against the hull rails, bearing enormous pressure and experiencing severe wear. Traditional designs weld the wear-resistant block to the slider body, requiring the old block to be cut and a new one welded for replacement, resulting in a complex, time-consuming, labor-intensive, and difficult-to-maintain process. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a new type of wear-resistant block device for a trailing suction dredger.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel wear-resistant block device for a trailing suction hopper dredger includes a wear-resistant structure disposed on the slider body, the wear-resistant structure comprising:

[0007] The upper wear-resistant structure is fixed on the upper side of the slider body;

[0008] The lower wear-resistant structure is fixedly disposed on the lower side of the slider body;

[0009] The upper and lower wear-resistant structures form a non-welded modular assembly structure with the slider body, and the upper and lower wear-resistant structures are asymmetrically arranged and respectively set on both sides of the hull slide rail.

[0010] Preferably, the upper wear-resistant structure includes an upper wear-resistant block and a first bolt. The upper wear-resistant block and the slider body are provided with matching first screw holes. The upper wear-resistant block is detachably fixed to the slider body by the first bolt.

[0011] Preferably, the lower wear-resistant structure adopts a split structure, which includes a base, two lower wear-resistant blocks fixed on the base, and a second bolt. The base and the slider body are provided with matching second screw holes, and the base is detachably fixed to the slider body through the second bolt.

[0012] Preferably, the lower wear-resistant block and the base are provided with a matching third screw hole, and a third bolt is movably connected in the third screw hole.

[0013] Preferably, the base is fixed with multiple sets of limiting wedges, and the multiple sets of limiting wedges and the base together form an installation position for positioning the wear-resistant block.

[0014] Preferably, the upper wear-resistant block and the lower wear-resistant block are made of high-chromium cast iron or tungsten carbide composite material.

[0015] Compared with the prior art, this utility model provides a novel wear-resistant block device for a trailing suction hopper dredger, which has the following beneficial effects:

[0016] 1. The new wear-resistant block device of the trailing suction hopper dredger is fixed to the slider body with bolts through a wear-resistant structure, eliminating the need for welding. This change eliminates concerns about the compatibility of welding the two materials, allowing the selection of more optimized wear-resistant materials, significantly improving wear resistance, extending service life, and greatly simplifying the wear-resistant block replacement process. This makes maintenance more convenient, effectively improving equipment replacement time and significantly reducing maintenance costs.

[0017] 2. The new type of wear-resistant block device for the trailing suction dredger forms a two-way support structure by asymmetrically arranging the upper and lower wear-resistant structures on both sides of the hull slide rail. This can effectively resist the lateral impact force when the rake head cuts into the mud layer. The staggered arrangement can also offset the unilateral wear of the guide rail caused by the water flow impact, avoiding track instability due to unilateral wear. The upper wear-resistant structure mainly bears the vertical pressure and lateral shear force, while the lower wear-resistant block mainly copes with the lateral bending moment and torsional force. Attached Figure Description

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

[0019] Figure 2 for Figure 1 Side view;

[0020] Figure 3 This is a schematic diagram of the lower wear-resistant structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the base of this utility model;

[0022] Figure 5 for Figure 3 A schematic diagram of the cross-sectional structure;

[0023] Figure 6 This is a schematic diagram of the upper wear-resistant block of this utility model.

[0024] In the diagram: 1. Slider body; 2. Upper wear-resistant structure; 201. Upper wear-resistant block; 202. First bolt; 3. Lower wear-resistant structure; 301. Base; 302. Lower wear-resistant block; 303. Second bolt; 304. Third bolt; 4. First screw hole; 5. Second screw hole; 6. Third screw hole; 7. Limiting wedge block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] like Figure 1 and Figure 2 As shown, this embodiment proposes a novel wear-resistant block device for a trailing suction hopper dredger, including a wear-resistant structure disposed on the slider body 1. The wear-resistant structure includes an upper wear-resistant structure 2 and a lower wear-resistant structure 3. The upper wear-resistant structure 2 is fixed on the upper side of the slider body 1, and the lower wear-resistant structure 3 is fixed on the lower side of the slider body 1. The upper wear-resistant structure 2 and the lower wear-resistant structure 3 form a non-welded modular assembly structure with the slider body 1. The upper wear-resistant structure 2 and the lower wear-resistant structure 3 are both shaped like a "7" and are asymmetrically arranged, respectively disposed on both sides of the hull slide rail.

[0029] By making the wear-resistant structure detachably fixed to the slider body 1, eliminating the need for welding, this change eliminates concerns about the compatibility of welding the two materials, allowing the selection of more optimized wear-resistant materials, significantly improving wear resistance, extending service life, and greatly simplifying the wear-resistant block replacement process, making maintenance convenient, effectively improving equipment replacement time, and significantly reducing maintenance costs. Furthermore, the asymmetrical arrangement of the upper wear-resistant structure 2 and the lower wear-resistant structure 3 on both sides of the hull slide rail forms a two-way support structure, which can effectively resist the lateral impact force when the rake head cuts into the mud layer. The staggered arrangement can also offset the unilateral wear of the slide rail caused by water flow impact, avoiding slide rail instability due to unilateral wear. The upper wear-resistant structure 2 mainly bears the vertical pressure and lateral shear force, while the lower wear-resistant structure 3 mainly copes with the lateral bending moment and torsional force.

[0030] like Figures 1 to 6 As shown, in a preferred embodiment, based on the above method, the upper wear-resistant structure 2 further includes an upper wear-resistant block 201 in the shape of a "7" and a first bolt 202. The upper wear-resistant block 201 and the slider body 1 are provided with matching first screw holes 4. The upper wear-resistant block 201 is detachably fixedly connected to the slider body 1 by the first bolt 202.

[0031] Furthermore, the lower wear-resistant structure 3 adopts a split structure. The lower wear-resistant structure 3 includes a base 301 in the shape of a "7", two lower wear-resistant blocks 302 fixed on the base 301, and a second bolt 303. The base 301 and the slider body 1 are provided with matching second screw holes 5. The base 301 is detachably fixed to the slider body 1 through the second bolt 303.

[0032] The upper wear-resistant structure 2 is fixed to the upper side of the slider body 1 by the first bolt 202, and the lower wear-resistant structure 3 is fixed to the lower side of the slider body 1 by the second bolt 303. Compared with the existing welding fixing method, the bolt installation makes the disassembly and assembly of the wear-resistant block more convenient and quick.

[0033] like Figure 3 , Figure 4 and Figure 5 As shown, in a preferred embodiment, based on the above method, the lower wear-resistant block 302 and the base 301 are further provided with a matching third screw hole 6, and a third bolt 304 is movably connected in the third screw hole 6; there are two lower wear-resistant blocks 302, and both are connected to the base 301 through the third bolt 304.

[0034] It should be noted that, in order to further limit the installation of the lower wear-resistant block 302, multiple sets of limiting wedge blocks 7 are fixed on the base 301. The multiple sets of limiting wedge blocks 7 and the base 301 together form an installation position for positioning the lower wear-resistant block 302. When installing the lower wear-resistant block 302, it is placed in the installation position and then fixed and locked by the third bolt 304.

[0035] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, the upper wear-resistant block 201 and the lower wear-resistant block 302 are further made of high-chromium cast iron or tungsten carbide composite material; high-chromium cast iron is used as the matrix, and a tungsten carbide layer is provided on the matrix, which reduces the volumetric wear rate to 0.12 cm. 3 / h (traditional high-chromium cast iron is 0.35cm) 3 / h), high-chromium cast iron matrix (ak≥18J / cm) 2 It effectively absorbs the impact energy during dredging operations. The dual-material structure exhibits the following characteristics in muddy water flow: the tungsten carbide layer resists abrasive cutting wear, and the high-chromium cast iron matrix is ​​resistant to seawater corrosion.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel wear-resistant block device for a trailing suction hopper dredger, comprising a wear-resistant structure disposed on the slider body (1), characterized in that, The wear-resistant structure includes: Upper wear-resistant structure (2), the upper wear-resistant structure (2) is fixed on the upper side of the slider body (1); The lower wear-resistant structure (3) is fixed on the lower side of the slider body (1); The upper wear-resistant structure (2) and the lower wear-resistant structure (3) form a non-welded modular assembly structure with the slider body (1), and the upper wear-resistant structure (2) and the lower wear-resistant structure (3) are asymmetrically arranged and respectively set on both sides of the hull slide rail.

2. The novel wear-resistant block device for a trailing suction hopper dredger according to claim 1, characterized in that, The upper wear-resistant structure (2) includes an upper wear-resistant block (201) and a first bolt (202). The upper wear-resistant block (201) and the slider body (1) are provided with matching first screw holes (4). The upper wear-resistant block (201) is detachably fixedly connected to the slider body (1) by the first bolt (202).

3. The novel wear-resistant block device for a trailing suction hopper dredger according to claim 2, characterized in that, The lower wear-resistant structure (3) adopts a split structure. The lower wear-resistant structure (3) includes a base (301), two lower wear-resistant blocks (302) fixed on the base (301), and a second bolt (303). The base (301) and the slider body (1) are provided with matching second screw holes (5). The base (301) is detachably fixed to the slider body (1) through the second bolt (303).

4. The novel wear-resistant block device for a trailing suction hopper dredger according to claim 3, characterized in that, The lower wear-resistant block (302) and the base (301) are provided with a matching third screw hole (6), and a third bolt (304) is movably connected in the third screw hole (6).

5. A novel wear-resistant block device for a trailing suction hopper dredger according to claim 4, characterized in that, Multiple sets of limiting wedges (7) are fixed on the base (301), and the multiple sets of limiting wedges (7) together with the base (301) form an installation position for positioning the wear-resistant block (302).

6. The novel wear-resistant block device for a trailing suction hopper dredger according to claim 3, characterized in that, The upper wear-resistant block (201) and the lower wear-resistant block (302) are made of high-chromium cast iron or tungsten carbide composite material.

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