A tooth structure is added to the grab cutter of a bridge crane

Abstract

This utility model discloses a toothed structure for the grab bucket blade of a bridge crane, relating to the field of grab bucket technology for bridge cranes. It includes a first bucket body and a second bucket body connected by a fixed pulley. The first bucket body has four teeth, and the second bucket body has five teeth. The second bucket body also has four spacer slots. When the first and second bucket bodies are closed, each tooth of the first bucket body is located in one spacer slot. The teeth of the first bucket body are trapezoidal in shape and are located at the end furthest from the first bucket body. The teeth of the second bucket body are isosceles trapezoidal in shape and are located at the end closest to the second bucket body. This utility model, through optimized tooth structure and the use of wear-resistant materials, effectively improves the wear resistance and grabbing efficiency of the grab bucket, extending its service life. It is particularly suitable for handling hard materials such as ores and coal, reducing wear and malfunctions during operation.

Description

Technical Field

[0001] This utility model relates to the field of bridge crane grab bucket technology, and in particular to a structure for adding teeth to the blade of a bridge crane grab bucket. Background Technology

[0002] Existing bridge crane grabs often employ a flat-edged design. In actual operation, when handling hard materials such as ore and coal, the cutter edge is prone to wear due to friction and impact. This not only increases the grab's maintenance costs but also significantly reduces its grabbing efficiency, sometimes even resulting in the grab failing to pick up material. To overcome these shortcomings, it is urgent to improve the grab's cutter edge structure to enhance its wear resistance and grabbing capacity, adapting to the demands of harsh working conditions. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a toothed structure for the grab bucket blades of bridge cranes, which solves the technical problem that the flat blades of existing bridge crane grab buckets are prone to wear when handling hard materials such as ores and coal, leading to increased maintenance costs and reduced grabbing efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A toothed structure for the grab bucket blade of a bridge crane includes a first bucket body and a second bucket body, which are connected by a fixed pulley. The first bucket body has four teeth, the second bucket body has five teeth, and the second bucket body has four interval slots. When the first bucket body and the second bucket body are closed, each tooth of the first bucket body is located in one interval slot.

[0005] Preferably, the teeth of the first bucket body are trapezoidal in shape and are located at the end of the first bucket body away from the first bucket body.

[0006] Preferably, the teeth of the second bucket body are in the shape of an isosceles trapezoid and are located at one end of the second bucket body near the teeth.

[0007] Preferably, the first bucket body includes ear plates and a bucket body portion, wherein there are two ear plates located at the left and right ends of the main body portion.

[0008] Preferably, the main body includes an integrally formed first steel plate, which is bent into a grab bucket shape.

[0009] Preferably, the main body includes a reinforcing plate located at the toothed opening of the first bucket body.

[0010] Preferably, the main body includes a lower crossbeam and a movable pulley, which are connected by a shaft.

[0011] Preferably, the first bucket and the second bucket include a rice feeder frame and a fixed pulley, which are connected by a head.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The tooth structure is made of highly wear-resistant materials, and the trapezoidal teeth of the first bucket and the isosceles trapezoidal teeth of the second bucket enhance the contact strength with the material, effectively reduce blade wear, and extend the service life of the grab bucket.

[0013] When the first and second buckets close, the teeth and the spacer grooves fit together precisely to ensure a tight closure and reduce material leakage. The optimized tooth shape adapts to materials of different hardness and shape, improving gripping stability and avoiding the phenomenon of "not being able to grab the material".

[0014] It reduces the number of failures and repairs caused by wear and tear, and lowers maintenance costs, especially in the handling of hard materials such as ore and coal.

[0015] The integrally formed first steel plate, the reinforcing plate at the toothed edge, and the sturdy connecting structure (such as the shaft connection between the lower crossbeam and the movable pulley, and the head connection between the crossbeam frame and the fixed pulley) enhance the overall strength of the grab bucket and improve operational reliability. Attached Figure Description

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a structural diagram of the movable pulley, lower crossbeam, and ear plate of this utility model; Figure 2 This is a structural diagram of the fixed pulley, the first steel plate, and the first bucket body teeth in this utility model; Figure 3 This is a structural diagram of the second bucket body teeth in this utility model.

[0018] Legend: 1. First bucket body; 2. Second bucket body; 3. Fixed pulley one; 4. First steel plate; 5. First bucket body teeth; 15. Movable pulley; 16. Lower crossbeam; 17. Ear plate; 18. Reinforcing plate; 117. Meter frame; 118. Fixed pulley two; 12. Second bucket body teeth; 11. Spacing groove; 13. Shaft; 116. Head. Detailed Implementation

[0019] This application provides a toothed structure for the grab bucket blades of a bridge crane, which effectively solves the technical problem that the flat blades of existing bridge crane grab buckets are prone to wear when handling hard materials such as ore and coal, resulting in increased maintenance costs and reduced grabbing efficiency. Example

[0020] like Figure 1 , Figure 2 , Figure 3 As shown, the overall technical solution in this application embodiment is as follows: To address the problems existing in the prior art, this utility model provides a toothed structure added to the blade of a bridge crane grab bucket. The aim is to solve the problems of easy wear and low grabbing efficiency of the flat blade of the existing bridge crane grab bucket when handling hard materials. By adding a specific toothed structure to the blade of the grab bucket, the wear resistance and grabbing efficiency are improved, making it especially suitable for handling hard materials such as ore and coal.

[0021] The structure mainly includes a first bucket body 1 and a second bucket body 2. The first bucket body 1 and the second bucket body 2 are connected by a fixed pulley 3. They also include a measuring frame 117 and a fixed pulley 118. The measuring frame 117 and the fixed pulley 118 are connected by a head 116. This connection method can ensure that the two bucket bodies work stably together during operation to achieve opening and closing actions.

[0022] The first bucket body 1 has four trapezoidal teeth 5, which are located at the ends of the first bucket body 1 furthest from the first bucket body 1. This trapezoidal tooth design enhances the contact strength with the material, increases the gripping force, and reduces slippage. The first bucket body 1 also includes ear plates 17 and a bucket body section. Two ear plates 17 are provided, located at the left and right ends of the main body section, respectively. The ear plates 17 enhance the stability of the connection between the first bucket body 1 and other components.

[0023] The main body of the first bucket 1 also includes an integrally formed first steel plate 4, which is bent into the shape of a grab bucket. The integral structure can improve the overall strength of the bucket and reduce wear and failure risk at the splicing points. The main body is also provided with a reinforcing plate 18, which is located at the toothed edge of the first bucket 1. It can further enhance the structural strength of the toothed edge and delay wear. In addition, the main body includes a lower crossbeam 16 and a movable pulley 15. The lower crossbeam 16 and the movable pulley 15 are connected by a shaft 13. The movable pulley 15 can cooperate with the fixed pulley 3 to realize the transmission of the wire rope, which facilitates the control of the lifting and lowering and opening and closing of the grab bucket.

[0024] The second hopper 2 has five second hopper teeth 12, each tooth being an isosceles trapezoid and positioned near one end of the second hopper 2. The isosceles trapezoidal structure provides good symmetry, resulting in more even force distribution and extending the tooth's lifespan. Simultaneously, the second hopper 2 has four spacer slots 11. When the first hopper 1 and the second hopper 2 are closed, the first hopper teeth 5 of each first hopper 1 are precisely positioned within one spacer slot 11. This arrangement ensures a tight seal between the two hoppers, reducing material leakage and improving gripping efficiency.

[0025] In actual operation, the aforementioned tooth structure is made of highly wear-resistant materials, enabling it to adapt to harsh working conditions. The optimized design of the trapezoidal and isosceles trapezoidal tooth shapes can adapt to the gripping needs of materials with different hardness and shapes, effectively improving the wear resistance of the grab bucket, extending its service life, reducing wear and malfunctions during operation, and lowering maintenance costs.

[0026] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A toothed structure for the grab bucket blade of a bridge crane, characterized in that, It includes a first bucket body (1) and a second bucket body (2), which are connected by a fixed pulley (3). The first bucket body (1) has four first bucket body teeth (5), and the second bucket body (2) has five second bucket body teeth (12). The second bucket body (2) has four interval slots (11). When the first bucket body (1) and the second bucket body (2) are closed, the first bucket body teeth (5) of each first bucket body (1) are located in an interval slot (11).

2. The toothed structure added to the blade of the grab bucket of the bridge crane according to claim 1, characterized in that, The first bucket tooth (5) of the first bucket body (1) is trapezoidal in shape and is located at the end of the first bucket body (1) away from the first bucket body (1).

3. The toothed structure for the grab bucket blade of the bridge crane according to claim 1, characterized in that, The second bucket tooth (12) of the second bucket body (2) is an isosceles trapezoid and is located at one end of the second bucket body (2) near the second bucket body (2).

4. The toothed structure added to the grab bucket blade of the bridge crane according to claim 1, characterized in that, The first bucket body (1) includes ear plates (17) and a bucket body part. There are two ear plates (17), which are located at the left and right ends of the main body part.

5. The toothed structure for the grab bucket blade of the bridge crane according to claim 4, characterized in that, The main body includes an integrally formed first steel plate (4), which is bent into a grab bucket shape.

6. The toothed structure for the grab bucket blade of the bridge crane according to claim 4, characterized in that, The main body includes a reinforcing plate (18) located at the toothed opening of the first bucket body (1).

7. The toothed structure for the grab bucket blade of the bridge crane according to claim 4, characterized in that, The main body includes a lower crossbeam (16) and a movable pulley (15), which are connected by a shaft (13).

8. The toothed structure for the grab bucket blade of the bridge crane according to claim 1, characterized in that, The first bucket body (1) and the second bucket body (2) include a rice feed frame (117) and a fixed pulley (118), which are connected by a head (116).

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