Grab bucket supporting rod

Abstract

The utility model discloses a grab bucket supporting rod which comprises a supporting rod body and a tooth block welded to the top of the supporting rod body, the lower end of the tooth block is provided with a first welding head and a second welding head which are located on the two sides, and the first welding head and the second welding head are in transition through an arc-shaped face. The arc-shaped face is divided into a first arc-shaped section arching upwards and a second arc-shaped section obliquely extending downwards and outwards, and the first welding head extends downwards and exceeds the second welding head. The first welding head and the second welding head are in transition through the arc-shaped surface, so that stress can be dispersed along the arc-shaped surface, the risk that the supporting rod is broken due to stress concentration is avoided, and the welding strength is improved. And secondly, the length of the first welding head is increased, so that the first welding head and the second welding head are staggered from the welding position of the supporting body, two welding seams are prevented from being located on the same cross section, and the welding strength is further improved.

Description

Technical Field

[0001] This utility model relates to the field of grab buckets, specifically to a grab bucket support rod. Background Technology

[0002] Grab buckets are a common type of bulk cargo handling device used in ports and terminals. For example... Figure 1 As shown, the grab bucket 9 includes two buckets 8 arranged opposite each other. The two buckets 8 are rotatably mounted on the upper support beam 7 via support rods 6. During operation, the support rods swing in opposite directions around their upper hinge points A, causing the two buckets 8 to close or separate, thus grabbing or unloading materials. Figure 2 As shown, the existing strut 6 consists of a strut body 601 and a toothed block 602 welded to the top of the strut body 601. The welding surface between the toothed block 602 and the strut is flat, which makes the strut prone to breakage when it is subjected to impact during swinging. Utility Model Content

[0003] Based on this, and in response to the aforementioned technical problems, this utility model provides a grab bucket support rod.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A grab bucket strut includes a strut body and a toothed block welded to the top of the strut body. The lower end of the toothed block has a first welded head and a second welded head located on both sides. The first welded head and the second welded head are connected by an arc-shaped surface. The arc-shaped surface is divided into a first arc-shaped segment that arches upward and a second arc-shaped segment that extends downward and outward. The first welded head extends downward beyond the second welded head.

[0006] This structure allows for a smooth transition between the first and second weld joints via an arc-shaped surface, dispersing stress along this surface and preventing the strut from breaking due to stress concentration, thus improving welding strength. Secondly, extending the length of the first weld joint shifts the welding position between it and the support body away from the strut's hinge point, further dispersing stress and reducing the risk of weld cracking between the toothed block and the strut body. Moreover, the welding positions of the first and second weld joints with the support body are staggered, preventing two welds from being on the same cross-section and causing the strut to break due to stress concentration.

[0007] In a specific embodiment of this utility model: notches are formed on the outer bottom of both the first welding head and the second welding head. This structure increases the welding contact area through the notches, allowing the solder to fill better, thereby improving welding strength and reliability; simultaneously, it provides a clear operating space for the welding torch, facilitating precise positioning of the welding point and reducing operational errors. Furthermore, it effectively disperses stress concentration at the welding position, reducing the risk of cracking.

[0008] In a specific embodiment of this utility model: the support rod body is a hollow structure, including a rear panel and a front panel spaced apart, a left side panel welded between the left edge of the rear panel and the left edge of the front panel, and a right side panel welded between the right edge of the rear panel and the right edge of the front panel. This structure reduces the weight of the support rod body.

[0009] In a specific embodiment of this utility model: the front panel extends upward to cover the front surface of the tooth block, and the outer edge of the front panel is welded to the outer edge of the front surface of the tooth block; the rear panel extends upward to cover the rear surface of the tooth block, and the outer edge of the rear panel is welded to the outer edge of the rear surface of the tooth block. This structure further enhances the welding strength.

[0010] In a specific embodiment of this utility model: the left side plate is divided into an upper sealing plate and a lower vertical plate. This structure facilitates welding by connecting the rear edge of the arc-shaped surface of the toothed block to the inner wall of the rear panel, and the front edge of the arc-shaped surface to the inner wall of the front panel, thereby strengthening the weld.

[0011] In a specific embodiment of this utility model, multiple reinforcing plates are provided inside the support rod body. This structure increases the overall structural strength of the support rod.

[0012] In summary, the first and second welding heads in this invention are connected by an arc-shaped transition surface, allowing stress to be dispersed along this surface, thus avoiding the risk of the support rod breaking due to stress concentration and improving welding strength. Secondly, by lengthening the first welding head, on the one hand, the welding position between the first welding head of the tooth block and the support body is moved away from the hinge point of the support rod, dispersing stress and reducing the risk of weld cracking between the tooth block and the support rod body; on the other hand, the welding positions of the first and second welding heads of the tooth block and the support body are staggered, preventing two welds from being on the same cross-section, thereby avoiding the risk of the support rod breaking due to stress concentration and improving welding strength. Furthermore, the front panel extends upwards to cover the front surface of the tooth block, and the outer edge of the front panel is welded to the outer edge of the front surface of the tooth block; the rear panel extends upwards to cover the rear surface of the tooth block, and the outer edge of the rear panel is welded to the outer edge of the rear surface of the tooth block, further strengthening the welding strength. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This shows a schematic diagram of the structure of a grab bucket in the prior art;

[0015] Figure 2 This shows a schematic diagram of the strut structure in the prior art;

[0016] Figure 3 This is a schematic diagram of the structure of a grab bucket support rod according to this utility model;

[0017] Figure 4 This shows the internal structure of the strut body. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1 and Figure 2 As shown, this utility model is a grab bucket strut, including a strut body 10 and a toothed block 20 welded to the top of the strut body 10. At the lower end of the toothed block 20 are a first welding head 22 and a second welding head 23 located on both sides. The first welding head 22 extends downward beyond the length of the second welding head 23. In this way, by lengthening the first welding head, on the one hand, the welding position between the first welding head of the toothed block and the support body is moved away from the strut hinge point, dispersing stress concentration and reducing the risk of weld cracking between the toothed block and the strut body; on the other hand, the welding positions of the first and second welding heads of the toothed block and the support body are staggered, avoiding two welds on the same cross-section, thereby avoiding the risk of the strut breaking due to stress concentration.

[0020] like Figure 2 As shown, the first weld joint 22 and the second weld joint 23 are transitioned by an arc-shaped surface 21. In this embodiment, the arc-shaped surface 21 is divided into an upwardly arched first arc-shaped segment 211 and a downwardly and outwardly inclined second arc-shaped segment 212. With this structure, the first weld joint and the second weld joint are transitioned by an arc-shaped surface, which allows stress to be dispersed along the arc-shaped surface, further improving the welding strength.

[0021] In this embodiment, notches 24 are formed on the outer bottom sides of both the first welding head 22 and the second welding head 23. This structure increases the welding contact area through the notches, allowing the solder to fill better, thereby improving welding strength and reliability. Simultaneously, it provides a clear operating space for the welding torch, facilitating precise positioning of the welding point and reducing operational errors. Furthermore, it effectively disperses stress concentration at the welding location, reducing the risk of cracking.

[0022] In this embodiment, the strut body 10 has a hollow structure, including a rear panel 11 and a front panel 12 spaced apart. A left side plate 13 is welded between the left edge of the rear panel 11 and the left edge of the front panel 12. A right side plate 14 is welded between the right edge of the rear panel 11 and the right edge of the front panel 12. This structure reduces the weight of the strut body.

[0023] In this embodiment, the front panel 12 extends upward to cover the front surface of the toothed block 20, and the outer edge of the front panel 12 is welded to the outer edge of the front surface of the toothed block. The rear panel 11 extends upward to cover the rear surface of the toothed block 20, and the outer edge of the rear panel 11 is welded to the outer edge of the rear surface of the toothed block 20. This structure further enhances the welding strength.

[0024] In this embodiment, the left side plate 13 is divided into a sealing plate 131 located on the upper side and a vertical plate 132 located on the lower side. With this structure, during welding, the sealing plate can be welded last, leaving an operating notch between the support rod body and the toothed block. This facilitates welding and fixing the rear edge of the arc-shaped surface of the toothed block to the inner wall of the rear panel first, and welding and fixing the front edge of the arc-shaped surface to the inner wall of the front panel first. This internal welding further strengthens the welding strength.

[0025] Multiple reinforcing plates 15 are installed inside the strut body 10. This structure increases the overall structural strength of the strut.

[0026] The above describes a grab bucket support rod of this utility model. During welding, the rear panel 11, front panel 12, right side plate 14, and vertical plate 132 are first welded together to form a hollow support rod body 10. Then, the toothed block 20 is inserted into the top of the support rod body 10, and the top of the right side plate 14 is welded to the first welding head 22. At this time, since the sealing plate 131 has not yet been welded to the vertical plate 132, an operating notch is reserved between the support rod body 10 and the toothed block 20 to facilitate welding and fixing the rear edge of the arc-shaped surface of the toothed block 20 to the inner wall of the rear panel 11, and the front edge of the arc-shaped surface to the inner wall of the front panel 12. After completing the internal welding, the upper outer edge of the front panel 12 is welded and fixed to the outer edge of the front surface of the toothed block, and the upper outer edge of the rear panel 11 is welded and fixed to the outer edge of the rear surface of the toothed block 20. Finally, the top of the sealing plate 131 is welded and fixed to the second welding head 23, the bottom is welded and fixed to the top of the vertical plate 132, the front edge is welded and fixed to the joint of the front panel 12, and the rear edge is welded to the joint of the rear panel 11, thus completing the entire welding process.

[0027] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A grab bucket strut, comprising a strut body and a toothed block welded to the top of the strut body, wherein the lower end of the toothed block has a first welded head and a second welded head located on both sides, characterized in that, The first welding head and the second welding head are connected by an arc-shaped surface, which is divided into a first arc-shaped segment that arches upward and a second arc-shaped segment that extends downward and outward. The first welding head extends downward beyond the second welding head.

2. The grab bucket support rod according to claim 1, characterized in that, Both the bottom outer sides of the first and second welding heads have notches.

3. The grab bucket support rod according to claim 1, characterized in that, The strut body is a hollow structure, including a rear panel and a front panel spaced apart, a left side panel welded between the left edge of the rear panel and the left edge of the front panel, and a right side panel welded between the right edge of the rear panel and the right edge of the front panel.

4. The grab bucket support rod according to claim 3, characterized in that, The front panel extends upward to cover the front surface of the tooth block, and the outer edge of the front panel is welded to the outer edge of the front surface of the tooth block. The rear panel extends upward to cover the rear surface of the tooth block, and the outer edge of the rear panel is welded to the outer edge of the rear surface of the tooth block.

5. The grab bucket strut according to claim 3, characterized in that, The left side panel is divided into a sealing panel on the upper side and a vertical panel on the lower side.

6. The grab bucket strut according to claim 1, characterized in that, The support rod body is provided with multiple reinforcing plates.

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