Welding structure for wear-resistant layer of grab bucket

Abstract

The utility model discloses a grab bucket wear-resistant layer welding structure which comprises a grab bucket body, the grab bucket body is provided with a hopper, and the grab bucket body is provided with a mounting hole used for being connected with a rotating shaft. A main digging claw is fixedly arranged on the grab bucket body, and the main digging claw is arranged opposite to the axis of the mounting hole; the grab bucket body is provided with side walls, the side walls are arranged on three surfaces, and wear-resistant parts are fixedly arranged at the end parts of the three side walls; and the main digging claw is provided with a pin hole for mounting the wear-resistant sleeve. The grab bucket wear-resistant layer welding structure is reasonable in design, the wear resistance of the grab bucket can be improved, and the service life of the grab bucket is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of excavator bucket technology, and in particular to a welded structure for the wear-resistant layer of a grab bucket. Background Technology

[0002] Excavators are widely used in various engineering projects due to their flexible and powerful digging capabilities. Large mining excavators are also widely used in coal mining and production. The power performance of existing excavators is already excellent. The main problem in their use is the wear and tear on the grab bucket. Since the objects excavated in mines are mainly ore, the wear and tear on the grab bucket is far greater than that of ordinary earthmoving work. The service life of the grab bucket is seriously affected, which not only affects the progress of the project, but also increases the user's operating costs.

[0003] Therefore, it is necessary to improve the welding structure of the wear-resistant layer in the existing grab bucket. Utility Model Content

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a welded structure for the wear-resistant layer of the grab bucket, thereby improving the wear resistance of the grab bucket and extending its service life.

[0005] To achieve the above technical effects, the technical solution of this utility model is as follows: a welded structure for a wear-resistant layer of a grab bucket, comprising a grab bucket body, wherein the grab bucket body is provided with a hopper, and the grab bucket body is provided with a mounting hole for connecting a rotating shaft; a main digging claw is fixedly provided on the grab bucket body, and the main digging claw is arranged opposite to the axis of the mounting hole; the grab bucket body is provided with sidewalls, the sidewalls are provided on three sides, and wear-resistant parts are fixedly provided at the ends of the three sides of the sidewalls; the main digging claw is provided with a pin hole for installing a wear-resistant sleeve.

[0006] According to one embodiment of the present invention, the wear-resistant component includes wear-resistant welding rods, and the wear-resistant welding rods are welded onto both the inner and outer surfaces of the sidewall.

[0007] According to one embodiment of the present invention, the thickness of the wear-resistant welding rod is gradually increased from the end of the side wall to the inner cavity of the hopper.

[0008] According to one embodiment of the present invention, a plurality of wear-resistant welding electrodes are provided along the width direction of the sidewall.

[0009] According to one embodiment of the present invention, the wear-resistant component includes a wear-resistant plate, and the wear-resistant plate is welded to at least one side of the inner surface and outer surface of the sidewall.

[0010] According to one embodiment of the present invention, a transition arc block is fixedly provided between the main digging claw and the side wall. The transition arc block is used to improve the connection strength of the steel claw and to prevent debris from accumulating between the digging claw and the side wall.

[0011] According to one embodiment of the present invention, the transition arc-shaped block is provided with reinforcing ribs, which are used to assist in breaking the object to be grasped.

[0012] According to one embodiment of the present invention, the grab body is further fixedly provided with an auxiliary digging claw, which is located behind the main digging claw and outside the main digging claw.

[0013] According to one embodiment of the present invention, the grab bucket body is further fixedly provided with a baffle plate, the baffle plate is disposed adjacent to the mounting hole, and the baffle plate is disposed on the hopper side of the mounting hole.

[0014] The advantages and beneficial effects of this utility model are as follows: The welded structure of the wear-resistant layer of the grab bucket is reasonably designed. By setting wear-resistant parts on the side wall, the strength of the side wall is improved without changing the material of the grab bucket body, thereby improving the wear resistance of the grab bucket body and extending the service life of the grab bucket body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the excavator bucket head support of this utility model;

[0016] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a structural schematic diagram of the excavator bucket head support of this utility model (from another perspective);

[0018] Figure 4 This is a schematic diagram of the structure of wear-resistant welding rods;

[0019] Figure 5 This is another specific embodiment of the structural schematic diagram of the excavator bucket head support of this utility model;

[0020] In the diagram: 1. Grab body; 11. Bucket; 12. Mounting hole; 2. Main digging claw; 21. Pin hole; 3. Side wall; 4. Wear-resistant welding rod; 5. Wear-resistant plate; 6. Transition arc block; 61. Reinforcing rib; 7. Auxiliary digging claw; 8. Blocking plate. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "horizontal," "vertical," "top," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for 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 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. Example

[0023] like Figure 1-4 As shown, the welded structure of the wear-resistant layer of the grab bucket in this embodiment includes a grab bucket body 1, which is provided with a hopper 11 and a mounting hole 12 for connecting a rotating shaft; a main digging claw 2 is fixedly provided on the grab bucket body 1, which is arranged opposite to the axis of the mounting hole 12; a side wall 3 is provided on three sides of the grab bucket body 1, and wear-resistant parts are fixedly provided at the ends of the three sides of the side wall 3; the main digging claw 2 is provided with a pin hole 21 for installing a wear-resistant sleeve.

[0024] With this design, without changing the material of the grab body 1, the service life of the grab body 1 can be improved by adding wear-resistant parts fixedly installed on the side wall 3; and the pin hole 21 provided on the main digging claw 2 provides convenient installation for the wear-resistant sleeve fitted on the main digging claw 2.

[0025] Specifically, the wear-resistant component includes wear-resistant welding rods 4, and the wear-resistant welding rods 4 are welded onto both the inner and outer surfaces of the sidewall 3.

[0026] Furthermore, the thickness of the wear-resistant welding rod 4 gradually increases from the end of the side wall 3 to the inner cavity of the hopper 11.

[0027] With this design, the impact of the wear-resistant welding rod 4 on construction resistance is reduced when the grab bucket body 1 grabs downwards.

[0028] Furthermore, several wear-resistant welding electrodes 4 are provided along the width direction of the sidewall 3.

[0029] Furthermore, the wear-resistant welding electrodes 4 are arranged in a trapezoidal pattern.

[0030] With this design, the distribution of wear-resistant welding rods 4 is conformed to the side wall of the grab body 1, improving the smoothness of the grab body 1 during operation.

[0031] Furthermore, a transition arc block 6 is fixedly provided between the main claw 2 and the side wall 3. The transition arc block 6 is used to improve the connection strength of the steel claw and prevent debris from accumulating between the claw and the side wall 3.

[0032] Furthermore, the transition arc-shaped block 6 is provided with reinforcing ribs 61, which are used to assist in breaking the object to be grasped.

[0033] Furthermore, the grab body 1 is also fixedly provided with an auxiliary digging claw 7, which is located behind the main digging claw 2 and on the outside of the main digging claw 2.

[0034] This design reduces damage to the grab body 1.

[0035] Furthermore, the grab body 1 is also fixedly provided with a baffle plate 8, which is disposed adjacent to the mounting hole 12 and is located on the hopper 11 side of the mounting hole 12.

[0036] This design protects the shaft.

[0037] like Figure 5 As shown, in another specific embodiment, the wear-resistant component further includes a wear-resistant plate 5, and the wear-resistant plate 5 is welded to at least one side of the inner surface and outer surface of the sidewall 3.

[0038] This design improves the flatness of the sidewall surface 3.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A welded structure for the wear-resistant layer of a grab bucket, characterized in that, The device includes a grab bucket body (1), which is provided with a hopper (11) and a mounting hole (12) for connecting a rotating shaft; the grab bucket body (1) is fixedly provided with a main digging claw (2), which is arranged opposite to the axis of the mounting hole (12); the grab bucket body (1) is provided with a side wall (3), which is provided on three sides, and wear-resistant parts are fixedly provided at the ends of the three sides of the side wall (3); the main digging claw (2) is provided with a pin hole (21) for installing a wear-resistant sleeve.

2. The welded structure of the wear-resistant layer of the grab bucket according to claim 1, characterized in that, The wear-resistant component includes wear-resistant welding rods (4), and the wear-resistant welding rods (4) are welded onto both the inner and outer surfaces of the sidewall (3).

3. The welded structure of the wear-resistant layer of the grab bucket according to claim 2, characterized in that, The thickness of the wear-resistant welding rod (4) gradually increases from the end of the side wall (3) to the inner cavity of the hopper (11).

4. The welded structure of the wear-resistant layer of the grab bucket according to claim 3, characterized in that, The wear-resistant welding rod (4) is provided in several places along the width direction of the side wall (3).

5. The welded structure of the wear-resistant layer of the grab bucket according to claim 1, characterized in that, The wear-resistant component includes a wear-resistant plate (5), and the wear-resistant plate (5) is welded to at least one side of the inner surface and outer surface of the sidewall (3).

6. The welded structure of the wear-resistant layer of the grab bucket according to claim 1, characterized in that, A transition arc block (6) is fixedly provided between the main claw (2) and the side wall (3). The transition arc block (6) is used to improve the connection strength of the steel claw and prevent debris from accumulating between the claw and the side wall (3).

7. The welded structure of the wear-resistant layer of the grab bucket according to claim 6, characterized in that, The transition arc block (6) is provided with reinforcing ribs (61), which are used to assist in breaking the object to be grasped.

8. The welded structure of the wear-resistant layer of the grab bucket according to claim 1, characterized in that, The grab body (1) is also fixedly provided with an auxiliary digging claw (7), which is located behind the main digging claw (2) and outside the main digging claw (2).

9. The welded structure of the wear-resistant layer of the grab bucket according to claim 1, characterized in that, The grab body (1) is also fixedly provided with a baffle plate (8), which is arranged adjacent to the mounting hole (12) and is located on the hopper (11) side of the mounting hole (12).

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