A wear plate for a double-dipper clamshell

Abstract

This utility model discloses a wear-resistant plate for a double-lobed grab bucket, relating to the field of double-lobed grab bucket technology. The utility model includes a grab bucket body, with a bottom edge wear-resistant plate and a side edge wear-resistant plate connected to the grab bucket body. A first rib and a bottom wall wear-resistant plate are connected to the bottom wall of the grab bucket body. Several through slots are evenly distributed on the side of the first rib, and a through hole communicating with the through slot is formed on the upper surface of the first rib. A threaded hole coaxial with the through hole is formed on the bottom wall of the through slot. The side of the bottom wall wear-resistant plate fits against the side wall of the first rib and is connected to a first insert block that mates with the through slot. The first insert block has a connecting hole for screws to pass through the through hole and the connecting hole, and to engage with the threaded hole for locking, thereby fixing the position of the bottom wall wear-resistant plate. This utility model, by connecting a bottom wall wear-resistant plate to the bottom wall of the grab bucket body, protects the grab bucket's body plate, solving the problems of wear on the body plate of existing grab buckets, increased maintenance costs, and reduced production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of double-lobed grab bucket technology, and in particular relates to a wear-resistant plate for double-lobed grab buckets. Background Technology

[0002] As a key accessory of gantry cranes, the two-part grab bucket is ingeniously designed and easy to operate, enabling it to quickly and accurately grab and unload various bulk materials, such as coal, ore, and grain.

[0003] For example, Chinese utility model CN215666637U discloses a double-lobed grab bucket powder alloy overlay wear-resistant cutting edge plate. The bottom cutting edge plate and side cutting edge plate are made by powder alloy submerged arc welding process, which improves the wear resistance of the cutting edge plate body. At the same time, the bottom cutting edge plate and side cutting edge plate are detachably connected to the grab bucket body, which can be disassembled after the bottom cutting edge plate and side cutting edge plate are worn, thereby realizing the replacement of the cutting edge plate and ensuring that the grab bucket can be put into use as soon as possible.

[0004] However, existing technology only installs wear-resistant plates on the cutting edge of the grab bucket. In actual use, the body plates of the grab bucket are also prone to wear. Under long-term, high-intensity operation, the wear rate is relatively fast, requiring frequent replacement. This not only increases maintenance costs but also increases downtime, affecting overall production efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a wear-resistant plate for a double-lobed grab bucket. By connecting a bottom wall wear-resistant plate to the bottom wall of the grab bucket body, the body plate of the grab bucket is protected, which solves the problems of wear on the body plate of existing grab buckets, increased maintenance costs and reduced production efficiency.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a wear-resistant plate for a double-lobed grab bucket, comprising a grab bucket body, a bottom edge wear-resistant plate connected to the bottom wall cutting edge of the grab bucket body, and a side edge wear-resistant plate connected to the side wall cutting edge of the grab bucket body. A first rib and a bottom wall wear-resistant plate are fixedly connected to the bottom wall of the grab bucket body. The first rib is parallel to the bottom wall cutting edge, and several through slots are evenly distributed on its side. A through hole communicating with the through slot is formed on the upper surface of the first rib, and a threaded hole coaxial with the through hole is formed on the bottom wall of the through slot. The side of the bottom wall wear-resistant plate is fitted against the side wall of the first rib and fixedly connected to a first insert block that mates with the through slot. The first insert block has a connecting hole for screws to pass through the through hole and the connecting hole, and to engage with the threaded hole for locking, thereby fixing the position of the bottom wall wear-resistant plate.

[0007] As a preferred technical solution of this utility model, the bottom wall of the grab bucket is fixedly connected with several connecting columns, and the connecting columns are connected with pressure blocks by screws, which are used to press down and fix the wear-resistant plate of the bottom wall away from the first rib by means of pressure blocks.

[0008] As a preferred technical solution of this utility model, the upper end face of the connecting column is provided with an internal threaded hole, the pressure block is L-shaped, and the lower end is provided with a connecting blind hole that fits with the connecting column with a clearance, and the upper surface is provided with a stepped through hole corresponding to the internal threaded hole.

[0009] As a preferred technical solution of this utility model, the bottom edge wear-resistant plate has a V-shaped cross-section to cover the upper and lower surfaces of the bottom edge of the grab bucket body. The side of the upper side of the bottom edge wear-resistant plate is attached to the side wall of the first rib and is fixedly connected with a number of second inserts. The second inserts have the same structure as the first inserts and are staggered. The connection method between the second inserts and the first rib is the same as the connection method between the first inserts and the first rib.

[0010] As a preferred technical solution of this utility model, the lower surface of the bottom wall of the grab bucket body is provided with connecting protrusions, and the connecting protrusions are evenly distributed with connecting through holes. The side of the lower side of the bottom edge wear-resistant plate is in contact with the side of the connecting protrusions, and is provided with threaded blind holes corresponding to the connecting through holes, so as to connect and fix the bottom edge wear-resistant plate and the connecting protrusions with screws.

[0011] As a preferred technical solution of this utility model, the lower surface of the connecting convex strip and the bottom wall of the grab bucket body on the side away from the bottom edge wear-resistant plate form a smooth transition structure.

[0012] As a preferred technical solution of this utility model, the side wall of the grab bucket is fixedly connected with a second rib and a side wall wear plate. The cross-section of the side edge wear plate is a V-shaped structure with the same cross-section as the bottom edge wear plate. The connection method of the side edge wear plate and the second rib is the same as the connection method of the bottom edge wear plate and the first rib.

[0013] As a preferred technical solution of this utility model, the two ends of the bottom edge wear-resistant plate extend out to the two sides of the grab bucket body, and the upper side of the bottom edge wear-resistant plate is provided with an avoidance groove adapted to the side wall of the grab bucket body. The lower end of the side edge wear-resistant plate abuts against the upper surface of the bottom edge wear-resistant plate, and the outer side is flush with the end face of the bottom edge wear-resistant plate.

[0014] This utility model has the following beneficial effects: 1. This utility model features a first rib fixedly connected to the bottom wall of the grab bucket body. The first rib is fixedly connected to the wear-resistant bottom wall, and the wear-resistant bottom wall plate is installed on the bottom wall of the grab bucket body. This protects the grab bucket body plate and prevents wear from occurring, thereby reducing the overall maintenance cost and time of the grab bucket and effectively ensuring the overall production efficiency. In addition, the first rib also acts as a reinforcing rib, which helps to improve the overall structural strength.

[0015] 2. This utility model protects the sidewall plates of the grab bucket by installing wear-resistant sidewall plates on the sidewalls of the grab bucket, thereby further improving the overall protection effect of the grab bucket, ensuring the service life of the grab bucket under long-term, high-intensity operation, and further reducing maintenance costs and maintenance time.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0018] Figure 1 This is a schematic diagram of the structure of a wear-resistant plate for a double-lobed grab bucket according to the present invention; Figure 2 for Figure 1 A structural diagram viewed from below; Figure 3 for Figure 1 Top view; Figure 4 Exploded view of the grab bucket body, bottom edge wear-resistant plate, and side edge wear-resistant plate; Figure 5 for Figure 3 Sectional view at point AA; Figure 6 for Figure 5 Enlarged view of the structure of section C; Figure 7 for Figure 3 Sectional view at point BB; Figure 8 for Figure 7 Enlarged view of the structure of section D in the middle; Figure 9 This is a schematic diagram of the structure of the bottom edge wear-resistant plate; Figure 10 This is a schematic diagram of the bottom wall wear-resistant plate. Figure 11 Exploded view of the connecting column and the pressure block; Figure 12 This is a schematic diagram of the structure of the pressure block; The attached diagram lists the components represented by each number as follows: 1-Grab bucket body, 2-Bottom edge wear-resistant plate, 3-Side edge wear-resistant plate, 4-Bottom wall wear-resistant plate, 5-Side wall wear-resistant plate, 101-First rib, 102-Through slot, 103-Through hole, 104-Threaded hole, 105-Connecting post, 106-Pressure block, 107-Internal threaded hole, 108-Connecting blind hole, 109-Stepped through hole, 110-Connecting protrusion, 111-Connecting through hole, 201-Second insert block, 202-Threaded blind hole, 203-Allowing slot, 301-Second rib, 401-First insert block, 402-Connecting hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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.

[0021] Example 1 Please see Figures 1-3 As shown, this utility model is a wear-resistant plate for a double-lobed grab bucket, including a grab bucket body 1, a bottom edge wear-resistant plate 2 connected to the bottom edge of the grab bucket body 1, a side edge wear-resistant plate 3 connected to the side edge of the grab bucket body 1, and a first rib 101 and a bottom edge wear-resistant plate 4 fixedly connected to the bottom wall of the grab bucket body 1.

[0022] like Figures 4-6As shown, the first rib 101 is welded and fixed to the bottom wall cutting edge of the grab bucket body 1, and is arranged parallel to the bottom wall cutting edge. A plurality of through slots 102 are evenly distributed on the side of the first rib 101. The number of through slots 102 can be determined according to the width of the grab bucket. In this embodiment, taking the attached figure as an example, the number of through slots 102 is eight. Through holes 103 are formed on the upper surface of the first rib 101, corresponding one-to-one with the through slots 102. Threaded holes 104 are formed on the bottom wall of the through slots 102, coaxially arranged with the through holes 103.

[0023] like Figure 10 As shown, the side of the bottom wall wear plate 4 is attached to the side wall of the first rib 101, and a first insert 401 that matches the through slot 102 is welded and fixed thereon. The bottom wall wear plate 4 is a single piece of wear plate covering the bottom wall of the grab bucket body 1, or it can be two to four wear plates installed and then covering the bottom wall of the grab bucket body 1.

[0024] The first insert 401 has a connecting hole 402. When installing the bottom wall wear-resistant plate 4, the first insert 401 is inserted into the through slot 102, and the side of the bottom wall wear-resistant plate 4 is made to be in close contact with the side of the first rib 101. Then, the screw is inserted through the through hole 103 and the connecting hole 402, and locked with the threaded hole 104, thereby locking the first insert 401 in the through slot 102, thus fixing the position of the bottom wall wear-resistant plate 4, thereby protecting the body plate of the grab bucket through the bottom wall wear-resistant plate 4.

[0025] The upper surface of the bottom wear-resistant plate 4 is flush with the upper surface of the first rib 101 to prevent unevenness at the connection point from obstructing the grabbing and release of materials. To improve the installation stability of the bottom wear-resistant plate 4, several connecting columns 105 are welded to the bottom wall of the grab bucket body 1. The number of connecting columns 105 is four as shown in the attached figure.

[0026] like Figure 7 , 11 The connecting column 105 is a square or hexagonal prism structure, and a pressure block 106 is connected to it by screws. The pressure block 106 is used to press down and fix the bottom wall wear-resistant plate 4 away from the first rib 101. Specifically, the upper end face of the connecting column 105 has an internal threaded hole 107. The pressure block 106 has an L-shaped structure and a connecting blind hole 108 at its lower end that fits with the connecting column 105 with a clearance. The upper surface has a stepped through hole 109 corresponding to the internal threaded hole 107. The connecting blind hole 108 at the lower end of the pressure block 106 is fitted onto the upper end of the connecting column 105. The screw passes through the stepped through hole 109 and fits with the internal threaded hole 107. By tightening the screw, the end of the pressure block 106 presses down on the bottom wall wear-resistant plate 4, thereby pressing the bottom wall wear-resistant plate 4 tightly onto the bottom wall of the grab bucket body 1, ensuring the installation stability of the bottom wall wear-resistant plate 4.

[0027] like Figure 4 ,8 As shown in Figure 9, the bottom edge wear-resistant plate 2 has a V-shaped cross-section, which allows the upper and lower sides of the bottom edge wear-resistant plate 2 to cover the upper and lower surfaces of the bottom edge of the grab bucket body 1. The upper side of the bottom edge wear-resistant plate 2 is attached to the side wall of the first rib 101 and is welded with several second inserts 201.

[0028] Taking the attached diagram as an example, the bottom edge wear-resistant plate 2 is connected to four second inserts 201, and the bottom wall wear-resistant plate 4 is connected to four first inserts 401. The second inserts 201 and the first inserts 401 have the same structure and are staggered. The four first inserts 401 of the bottom wall wear-resistant plate 4 are inserted into four through slots 102 of the first rib 101 at intervals. The four second inserts 201 connected to the bottom edge wear-resistant plate 2 are inserted into the other four through slots 102 that are staggered from the first inserts 401. The connection method between the second inserts 201 and the first rib 101 is the same as the connection method between the first inserts 401 and the first rib 101, that is, they are also fixed by screws. The upper surface of the bottom edge wear-resistant plate 2 is also flush with the upper surface of the first rib 101, so that the upper surfaces of the bottom edge wear-resistant plate 2, the first rib 101, and the bottom wall wear-resistant plate 4 remain flat.

[0029] Example 2 like Figure 2 , 4 As shown in Figure 6, the lower surface of the bottom wall of the grab bucket body 1 is provided with connecting protrusions 110. The bottom wall of the grab bucket body 1 and the connecting protrusions 110 can be an integral structure or welded together. The connecting protrusions 110 are evenly distributed with connecting through holes 111, which are stepped holes. The side of the bottom edge wear-resistant plate 2 fits against the side of the connecting protrusions 110 and is provided with threaded blind holes 202 corresponding to the connecting through holes 111. Screws pass through the connecting through holes 111 and engage with the threaded blind holes 202, thereby connecting and fixing the bottom edge wear-resistant plate 2 and the connecting protrusions 110 through screws, further improving the installation stability of the bottom edge wear-resistant plate 2.

[0030] Meanwhile, the lower surface of the bottom edge wear-resistant plate 2 is flush with the lower surface of the connecting ridge 110. The lower surface of the connecting ridge 110 and the bottom wall of the grab bucket body 1 on the side away from the bottom edge wear-resistant plate 2 form a smooth transition structure. The smooth transition structure can avoid the wear of sharp corner structures. In addition, the smooth transition structure increases the connection area between the connecting ridge 110 and the bottom wall of the grab bucket body 1, which is also conducive to improving the overall structural strength.

[0031] In a preferred embodiment, the side wall of the grab bucket body 1 is fixedly connected with a second rib 301 and a side wall wear plate 5. The cross-section of the side edge wear plate 3 is a V-shaped structure with the same cross-section as the bottom edge wear plate 2, so that the side edge wear plate 3 can also cover the inner and outer sides of the side wall of the grab bucket body 1.

[0032] The structure of the second rib 301 is the same as that of the first rib 101. The connection method of the side edge wear plate 3 and the second rib 301 is the same as that of the bottom edge wear plate 2 and the first rib 101. The connection method of the side wall wear plate 5 and the second rib 301 is the same as that of the bottom wall wear plate 4 and the first rib 101.

[0033] Meanwhile, the outer side of the side wall of the grab bucket body 1 is also provided with a connecting protrusion 110. The side wall wear plate 5 and the connecting protrusion 110 are also connected by screws. That is, the connection method between the side edge wear plate 3 and the side wall wear plate 5 and the grab bucket body 1 is the same as the connection method between the edge wear plate 2 and the bottom wall wear plate 4 and the grab bucket body 1.

[0034] Furthermore, the two ends of the bottom edge wear-resistant plate 2 extend out from both sides of the grab bucket body 1, and the upper side of the bottom edge wear-resistant plate 2 has an avoidance groove 203 that matches the side wall of the grab bucket body 1, so that the bottom edge wear-resistant plate 2 can be completely locked onto the outer side of the cutting edge of the bottom wall of the grab bucket body 1. The lower end of the side edge wear-resistant plate 3 abuts against the upper surface of the bottom edge wear-resistant plate 2, and the outer side is flush with the end face of the bottom edge wear-resistant plate 2, thereby ensuring that the bottom edge wear-resistant plate 2 and the side edge wear-resistant plate 3 can completely cover the cutting edge parts of the bottom wall and side wall of the grab bucket body 1, ensuring the overall protective effect.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wear-resistant plate for a double-lobed grab bucket, comprising a grab bucket body (1), a bottom edge wear-resistant plate (2) connected to the bottom wall edge of the grab bucket body (1), and a side edge wear-resistant plate (3) connected to the side wall edge of the grab bucket body (1), characterized in that: The bottom wall of the grab bucket body (1) is fixedly connected with a first rib (101) and a bottom wall wear plate (4). The first rib (101) is arranged parallel to the bottom wall cutting edge, and a number of through slots (102) are evenly distributed on the side of the first rib (101). A through hole (103) communicating with the through slot (102) is opened on the upper surface of the first rib (101), and a threaded hole (104) coaxially arranged with the through hole (103) is opened on the bottom wall of the through slot (102). The side of the bottom wall wear plate (4) is attached to the side wall of the first rib (101) and is fixedly connected to a first insert (401) that cooperates with the through slot (102). The first insert (401) has a connecting hole (402) for screws to pass through the through hole (103) and the connecting hole (402) and to cooperate with the threaded hole (104) to lock the bottom wall wear plate (4) in position.

2. The wear-resistant plate for a double-lobed grab bucket according to claim 1, characterized in that, The bottom wall of the grab bucket body (1) is fixedly connected with several connecting columns (105). The connecting columns (105) are connected with pressure blocks (106) by screws, which are used to press down and fix the wear-resistant plate (4) of the bottom wall away from the first rib (101) by the pressure blocks (106).

3. The wear-resistant plate for a double-lobed grab bucket according to claim 2, characterized in that, The upper end face of the connecting column (105) is provided with an internal thread hole (107), the pressure block (106) is L-shaped, and the lower end is provided with a connecting blind hole (108) that is clearance-fitted with the connecting column (105), and the upper surface is provided with a stepped through hole (109) corresponding to the internal thread hole (107).

4. A wear-resistant plate for a double-lobed grab bucket according to claim 1, 2, or 3, characterized in that, The bottom edge wear-resistant plate (2) has a V-shaped cross-section, which covers the upper and lower surfaces of the bottom edge of the grab bucket body (1). The upper side of the bottom edge wear-resistant plate (2) is attached to the side wall of the first rib (101) and is fixedly connected with several second inserts (201). The second inserts (201) have the same structure as the first inserts (401) and are staggered. The connection method between the second inserts (201) and the first rib (101) is the same as the connection method between the first inserts (401) and the first rib (101).

5. A wear-resistant plate for a double-lobed grab bucket according to claim 4, characterized in that, The lower surface of the bottom wall of the grab bucket body (1) is provided with connecting protrusions (110), and the connecting protrusions (110) are evenly distributed with connecting through holes (111). The side of the bottom edge wear-resistant plate (2) is in contact with the side of the connecting protrusions (110) and is provided with threaded blind holes (202) corresponding to the connecting through holes (111) for connecting and fixing the bottom edge wear-resistant plate (2) and the connecting protrusions (110) by screws.

6. A wear-resistant plate for a double-lobed grab bucket according to claim 5, characterized in that, The lower surface of the connecting convex strip (110) and the bottom wall of the grab bucket body (1) on the side away from the bottom edge wear-resistant plate (2) form a smooth transition structure.

7. A wear-resistant plate for a double-lobed grab bucket according to claim 6, characterized in that, The side wall of the grab bucket body (1) is fixedly connected with a second rib (301) and a side wall wear plate (5). The cross-section of the side edge wear plate (3) is a V-shaped structure with the same cross-section as the bottom edge wear plate (2). The connection method of the side edge wear plate (3) and the second rib (301) is the same as the connection method of the bottom edge wear plate (2) and the first rib (101). The connection method of the side wall wear plate (5) and the second rib (301) is the same as the connection method of the bottom wall wear plate (4) and the first rib (101).

8. A wear-resistant plate for a double-lobed grab bucket according to claim 5, characterized in that, The two ends of the bottom edge wear plate (2) extend out to the two sides of the grab bucket body (1), and the upper side of the bottom edge wear plate (2) is provided with an avoidance groove (203) that is adapted to the side wall of the grab bucket body (1). The lower end of the side edge wear plate (3) abuts against the upper surface of the bottom edge wear plate (2), and the outer side is flush with the end face of the bottom edge wear plate (2).

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