Synchronous structure of grab bucket

Abstract

This utility model discloses a synchronization structure for a grab bucket, including a pair of bucket bodies and two sets of synchronization teeth. Each bucket body has a first pin hole on each of its two end side plates. Each set of two synchronization teeth also has a second pin hole. Each set of two synchronization teeth is mounted on the same end side plates of the two bucket bodies via a pin passing through the corresponding first and second pin holes. Each bucket body also has a first positioning pin hole on each of its two end side plates, with the first positioning pin holes on the same end side plates of the two bucket bodies symmetrically aligned. Each set of two synchronization teeth also has a second positioning pin hole, which is symmetrically aligned, and the positioning pins pass through the corresponding first and second positioning pin holes to position the synchronization teeth in meshing position. The synchronization teeth are fixed to the corresponding side plates. This positioning structure is universally applicable, offering high positioning accuracy and repeatability. It not only improves the installation accuracy of the synchronization teeth but also reduces the labor intensity of workers.

Description

Technical Field

[0001] This utility model pertains to grab buckets, specifically relating to a synchronization structure for grab buckets. Background Technology

[0002] To ensure synchronized opening and closing, some grab buckets typically incorporate toothed synchronizing blocks on the bucket body. These are generally classified into two types: assembled and welded. Please refer to [link / reference]. Figures 1-2 As shown, the existing welded toothed synchronous structure has the disadvantages of being difficult to manufacture and having difficulty in ensuring the meshing accuracy between synchronous teeth. This is because two sets of four synchronous teeth 2 that need to mesh are installed on a pair of buckets 1. During installation, the four synchronous teeth 2 need to be meshed in pairs first. Then, special tooling is required to ensure the center distance and meshing positioning angle between the synchronous teeth 2. Each synchronous tooth 2 has a second pin hole 5. Then, a pin 3 is inserted into its respective second pin hole 5 and the first pin hole 4 on the corresponding side plate of the bucket 1. Finally, the synchronous teeth 2 are welded and fixed to the corresponding side plate of the bucket 1, thereby installing the four meshing synchronous teeth 2 on the four ends of the two buckets. The entire process relies on manual positioning based on the natural meshing position, which can easily cause the meshing positions of the left and right sets of tooth blocks to be different, affecting the synchronization effect. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a synchronous structure for a grab bucket. Positioning pin holes are designed on the bucket body and the synchronous teeth according to the assembly position. The positioning pins are used to position the meshing position, which can eliminate the position error caused by manual adjustment.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A synchronization structure for a grab bucket includes a pair of bucket bodies and two sets of synchronization teeth. Each bucket body has a first pin hole on each of its two end side plates. Each set of two synchronization teeth also has a second pin hole. Each set of two synchronization teeth is mounted on the same end side plates of the two bucket bodies by passing a pin through the corresponding first and second pin holes. Each bucket body also has a first positioning pin hole on each of its two end side plates. The first positioning pin holes on the same end side plates of the two bucket bodies are symmetrical. Each set of two synchronization teeth also has a second positioning pin hole, which is symmetrical. The positioning pins pass through the corresponding first and second positioning pin holes to position the synchronization teeth in meshing position. The synchronization teeth are fixed to the corresponding side plates.

[0006] The synchronizing gear and the corresponding side plate are fixed to each other by welding.

[0007] This invention discloses a synchronous structure for a grab bucket. By designing corresponding first and second locating pin holes on the bucket body and synchronizing gears according to their assembly positions, and using locating pins passing through these holes to position the meshing action, the positional errors previously caused by manual adjustment are eliminated. Machining ensures the positional accuracy of each locating pin hole. This high positioning accuracy is repeatable, improving not only the installation position accuracy of the synchronizing gears but also reducing the labor intensity of workers. Attached Figure Description

[0008] The utility model will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0009] Figure 1 A schematic diagram of the synchronization structure of a grab bucket in the prior art;

[0010] Figure 2 for Figure 1 Enlarged diagram of part A in the diagram;

[0011] Figure 3 This is a three-dimensional schematic diagram of the grab bucket of this utility model;

[0012] Figure 4 This is a schematic diagram of the synchronization structure of the grab bucket of this utility model;

[0013] Figure 5 for Figure 4 Enlarged schematic diagram of part A in the diagram. Detailed Implementation

[0014] The present invention provides a synchronization structure for a grab bucket as follows: Figures 3-5 As shown, similar to existing technology, it also includes a pair of buckets 1 and two sets of synchronizing gears 2. Each bucket 1 has a first pin hole 4 on each of its two end side plates; each of the two synchronizing gears 2 in each set also has a second pin hole 5. Each of the two synchronizing gears 2 in each set passes through the corresponding first and second pin holes 4 and 5 via a pin 3 to be installed on the two side plates at the same end of the two buckets 1 respectively. The difference is that each bucket 1 also has a first positioning pin hole on each of its two end side plates. Figure 5 (Not shown in the image, located at the positioning pin 6), the first positioning pin holes on the same end side plates of the two bucket bodies 1 are symmetrical; each of the two synchronous teeth 2 in each group is also provided with a second positioning pin hole ( Figure 5 (Not shown in the diagram, but located at the locating pin 6) and symmetrically positioned, the synchronizing gears are positioned by passing the locating pin 6 through the corresponding first and second locating pin holes. The synchronizing gear 2 is also fixed to the corresponding side plate by welding.

[0015] The synchronization structure of this invention uses a synchronization gear 2 connected to the bucket body 1 via a pin 3, with the meshing position determined by a positioning pin 6. The specific assembly steps are as follows:

[0016] First, the pin 3 is passed through the second pin hole 5 onto a synchronizing gear 2. Then, the pin 3 is passed through the first pin hole 4 to install the synchronizing gear 2 onto the corresponding side plate of the bucket body 1. Next, a positioning pin 6 is passed through the second positioning pin hole of the synchronizing gear 2 and the first positioning pin hole on the side plate to fix the angle and position of the synchronizing gear 2. The fixed synchronizing gear 2 is then in the set meshing position. Next, another synchronizing gear 2 in the same group is installed. The synchronizing gear 2 is first installed onto the side plate through the pin 3, ensuring it is meshed with the previously positioned synchronizing gear 2. Its first and second positioning pin holes are aligned, and the positioning pin 6 is inserted. The other pair of synchronizing gears 2 can be installed in the same way.

[0017] By employing the synchronization structure of this invention, the meshing accuracy of the synchronization teeth 2 of the assembled grab bucket is determined by the position and size of the indentation, which is significantly improved compared to existing methods. Simultaneously, it reduces the labor intensity of workers and increases product manufacturing efficiency by 20%.

[0018] However, those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any changes or modifications to the above embodiments within the scope of the essential spirit of the present utility model will fall within the scope of the claims of the present utility model.

Claims

1. A synchronization structure for a grab bucket, comprising a pair of bucket bodies and two sets of synchronization teeth, wherein each bucket body has a first pin hole on each end side plate; each of the two synchronization teeth in each set also has a second pin hole, and each of the two synchronization teeth in each set is mounted on the side plates at the same end of the two bucket bodies respectively by passing a pin through the corresponding first and second pin holes, characterized in that: Each bucket body has a first positioning pin hole on each of its two end side plates, and the first positioning pin holes on the same end side plates of the two bucket bodies are symmetrical. Each of the two synchronous teeth in each group also has a second positioning pin hole that is symmetrical, and the synchronous teeth are positioned by passing the positioning pin through the corresponding first and second positioning pin holes. The synchronous teeth are fixed to the corresponding side plates.

2. The synchronization structure of a grab according to claim 1, characterized in that: The synchronizing gear and the corresponding side plate are fixed to each other by welding.

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