Walking frame welding body assembly structure
By setting a welded structure of wing plates and support plates between the first and second tubes of the traveling frame, the connection strength is enhanced, the problem of easy cracking at the welded connection position of the traveling frame is solved, the service life is extended and the maintenance frequency is reduced.
Patent Information
- Application Number
- CN202521487186.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-16
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-16
AI Technical Summary
The existing welded parts of the walking frame have weak connection strength, are prone to cracking, and have a high maintenance rate.
Symmetrical flanges are set between the first and second pipe bodies, and the flanges are welded together with support plates to increase the welding length and support strength, forming a Z-shaped weld structure to improve the connection strength.
It increases the service life of the walking frame and reduces the maintenance rate.
Smart Images

Figure CN224674077U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heavy machinery technology, specifically relating to a walking frame welded body assembly structure. Background Technology
[0002] The traveling frame on heavy machinery is mainly used to install tensioning guide components and support rollers, serving a load-bearing and supporting function. Currently, some traveling frames are cast structures, with each mounting hole machined separately after casting. However, sometimes the traveling frame is cast in sections along its length, either in the early casting stage or during later machining. The connection between these sections is usually located at the pipe openings. During or after machining, the pipe openings of the two sections are welded together, typically using a circumferential welding method at the pipe openings. During operation, the two sections are subjected to relative lateral forces under the action of the tensioning guide components or support rollers, leading to cracking at the pipe opening welds, affecting service life and resulting in a high maintenance rate. Utility Model Content
[0003] This utility model provides a walking frame welded body assembly structure, which aims to solve the problems of weak connection strength at the connection position of the walking frame welded body in the prior art, which are prone to weld breakage and high maintenance rate.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a walking frame welded body assembly structure, comprising:
[0005] A first tube body, with first wing plates extending outward from both sides of the first tube body;
[0006] The second tube body has its opening welded to the opening of the first tube body, and second wing plates are provided on both sides of the second tube body extending outwards.
[0007] A support plate is installed between the first wing plate and the second wing plate on the same side of the first pipe body and the second pipe body, and is welded to the first wing plate and the second wing plate respectively. One side of the support plate is supported on the outer side wall of the first pipe body and the second pipe body, and is welded to the first pipe body and the second pipe body.
[0008] In one possible implementation, the first wing plate and the second wing plate are recessed at the side where they connect with the support plate, and the side of the support plate abuts against the bottom of the welding groove.
[0009] In one possible implementation, the sidewall of the welding groove and the side edge of the support plate are inclined to form a welding bevel.
[0010] In one possible implementation, the first wing plate has an L-shaped notch recessed on one side near the support plate, and the support plate has a protruding part that is welded to the inner wall of the L-shaped notch.
[0011] In one possible implementation, the support plate includes an inclined plate and a side plate arranged at an angle, and the sides of the first wing plate and the second wing plate are adapted to the sides of the support plate.
[0012] In one possible implementation, a base plate is fixedly connected between the first wing plate and the second wing plate, and the base plate is located below the first tube and the second tube.
[0013] In one possible implementation, the base plate abuts against an inclined plate on the support plate, and the base plate is bent to provide a connecting plate that is parallel to the inclined plate, the connecting plate being fixedly installed on the inclined plate.
[0014] In one possible implementation, an adjustment plate is fixedly connected between the two base plates, and the adjustment plate is fixedly connected to the first tube and the second tube.
[0015] In one possible implementation, a first reinforcing plate connected to the roots of the two first wing plates is fixedly installed at the bottom of the first tube body, and a second reinforcing plate connected to the roots of the two second wing plates is fixedly installed at the bottom of the second tube body.
[0016] The solution shown in this application embodiment, compared with the prior art, has a walking frame consisting of a first tube and a second tube. First wing plates are symmetrically arranged on both sides of the first tube, and second wing plates are symmetrically arranged on both sides of the second tube. A support plate is fixedly installed between the corresponding first and second wing plates by welding, with one side of the support plate abutting against the sidewall of the first and second tubes. In this application, when butt-welding the first and second tubes, the perimeters of the first and second tubes are first welded together. Then, the support plate is placed between the adjacent first and second wing plates, and its side is fixedly connected to the first and second wing plates by welding. The support plate is fixedly installed on the sidewall of the first and second tubes by welding near the side of the first and second tubes. The arrangement of the first wing plate, second wing plate, and support plate increases the welding length between the first and second tubes and provides support at the connection point. This effectively improves the connection strength between the first and second tubes, thereby increasing service life and reducing the later maintenance rate. Attached Figure Description
[0017] Figure 1A schematic diagram of the assembly structure of the walking frame welded body provided in an embodiment of this utility model;
[0018] Figure 2 This is a schematic diagram of the connection structure between the support plate and the first wing plate provided in an embodiment of the present utility model;
[0019] Figure 3 This is a schematic diagram of the mounting structure of the base plate provided in an embodiment of the present utility model.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. First tube body; 11. First wing plate; 111. Welding groove; 2. Second tube body; 21. Second wing plate; 3. Support plate; 31. Inclined plate; 32. Side plate; 33. Protrusion; 4. Bottom plate; 41. Connecting plate; 5. Adjusting plate; 6. First reinforcing plate; 7. Second reinforcing plate. Detailed Implementation
[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0023] Please refer to the following: Figures 1 to 3 The following describes the assembly structure of the walking frame welded body provided by this utility model. The assembly structure of the walking frame welded body includes a first tube 1, a second tube 2, and a support plate 3. First wing plates 11 are provided on both sides of the first tube 1 extending outward; the opening of the second tube 2 is welded to the opening of the first tube 1, and second wing plates 21 are provided on both sides of the second tube 2 extending outward; the support plate 3 is installed between the first wing plate 11 and the second wing plate 21 on the same side of the first tube 1 and the second tube 2, and is welded to the first wing plate 11 and the second wing plate 21 respectively. One side of the support plate 3 is supported on the outer wall of the first tube 1 and the second tube 2, and is welded to the first tube 1 and the second tube 2.
[0024] The walking frame assembly structure provided in this embodiment, compared with the prior art, is divided into a first tube 1 and a second tube 2. First wing plates 11 are symmetrically arranged on both sides of the first tube 1, and second wing plates 21 are symmetrically arranged on both sides of the second tube 2. A support plate 3 is fixedly installed between the corresponding first wing plates 11 and second wing plates 21 by welding, and one side of the support plate 3 abuts against the sidewall of the first tube 1 and the second tube 2. In this application, when butt welding between the first tube 1 and the second tube 2, the first tube 1 and the second tube 2 are first welded around their perimeters. Then, the support plate 3 is placed between the adjacent first wing plates 11 and second wing plates 21, and the side of the support plate 3 is fixedly connected to the first wing plates 11 and the second wing plates 21 by welding. The side of the support plate 3 near the first tube 1 and the second tube 2 is fixedly installed on the sidewall of the first tube 1 and the second tube 2 by welding, through the arrangement of the first wing plates 11, the second wing plates 21, and the support plate 3. On the one hand, it can increase the welding length between the first pipe body 1 and the second pipe body 2, and on the other hand, it can provide support at the connection between the first pipe body 1 and the second pipe body 2. This effectively improves the connection strength between the first pipe body 1 and the second pipe body 2, thereby increasing service life and reducing the later maintenance rate.
[0025] Specifically, in this embodiment, the first tube body 1 and the first wing plate 11 are integrally cast. The second tube body 2 and the second wing plate 21 are integrally cast. A bevel is machined on the side wall at the pipe opening of the connection end of the first tube body 1 and the second tube body 2 to facilitate welding between the first tube body 1 and the second tube body 2.
[0026] Specifically, in this embodiment, by adding a support plate 3 between the first tube 1 and the second tube 2, the support plate 3 can support the relative position of the first tube 1 and the second tube 2, thereby enhancing the stability of the connection between the first tube 1 and the second tube 2.
[0027] In some embodiments, the first tube 1 and the second tube 2 may be adopted as follows: Figure 2 The structure shown. See also Figure 2 A welding groove 111 is recessed on the side where the first wing plate 11 and the second wing plate 21 connect to the support plate 3, and the side of the support plate 3 abuts against the bottom of the welding groove 111. The welding groove 111 is recessed on the side of the first wing plate 11 and the second wing plate 21 near the support plate 3. The side of the support plate 3 abuts against the bottom of the welding groove 111, which serves to position the support plate 3 so that when it is welded to the first wing plate 11 and the second wing plate 21, the top surface of the support plate 3 is flush with the first wing plate 11 and the second wing plate 21.
[0028] Preferably, in this embodiment, the welding grooves 111 on the first wing plate 11 and the second wing plate 21 are arranged parallel to each other at intervals, so that the support plate 3 can be pushed so that the side of the support plate 3 abuts against the first pipe body 1 and the second pipe body 2, and the welding between the support plate 3 and the first pipe body 1 and the second pipe body 2 is completed.
[0029] In some embodiments, the welding groove 111 described above can be as follows: Figure 2 The structure shown. See also Figure 2 The sidewall of the welding groove 111 and the sidewall of the support plate 3 are inclined to form a welding bevel. The sidewall of the welding groove 111 is inclined outward. When the support plate 3 is placed inside the welding groove 111, the outer sidewall of the support plate 3 and the sidewall of the welding groove 111 form a welding bevel, which facilitates welding the support plate 3 to the first wing plate 11 and the second wing plate 21.
[0030] Specifically, in this embodiment, when the support plate 3 is installed between the first wing plate 11 and the second wing plate 21, the side of the support plate 3 abuts against the bottom edge of the welding groove 111, thereby positioning the support plate 3 by means of the welding groove 111 on the first wing plate 11 and the second wing plate 21. When placing the support plate 3, its position along the axis of the first tube 1 and along the thickness direction of the first wing plate 11 can both be positioned by means of the welding groove 111. Finally, the support plate 3 is positioned by pushing it against the outer walls of the first tube 1 and the second tube 2. This method is convenient, facilitates aligning the support plate 3, and allows for welding of the support plate 3 by a single person.
[0031] In some embodiments, the first wing 11 may be adopted as follows: Figure 2 The structure shown. See also Figure 2 The first wing plate 11 has an L-shaped notch recessed on one side near the support plate 3, and the support plate 3 has a protruding part 33 that is welded to the inner wall of the L-shaped notch. The L-shaped notch is located on the side of the first wing plate 11 away from the first pipe body 1. By setting the L-shaped notch, the welding length between the support plate 3 and the first wing plate 11 can be increased, thereby improving the welding strength. At the same time, it separates the weld between the first wing plate 11 and the support plate 3 into two parallel welds, so that if a crack appears in one weld, it will not directly affect the stability of the joint of the other weld. This can indirectly reduce the frequency of later maintenance.
[0032] Specifically, in this embodiment, the support plate 3 has a protruding part 33 on the side near the first wing plate 11, so that the welding joint between the first wing plate 11 and the support plate 3 can form a Z-shaped weld structure.
[0033] In some embodiments, the support plate 3 described above can be as follows: Figure 1 , Figure 2The structure shown. See also... Figure 1 , Figure 2 The support plate 3 includes an inclined plate 31 and a side plate 32 arranged at an angle. The sides of the first wing plate 11 and the second wing plate 21 are adapted to fit the sides of the support plate 3. The support plate 3 is composed of the inclined plate 31 and the side plate 32 arranged at an angle. The inclined plate 31 and the side plate 32 are integrally formed. The first wing plate 11 and the second wing plate 21 are adapted to the shape of the support plate 3. The inclined plate 31 and the side plate 32 arranged at an angle can enhance the support strength of the support plate 3, thereby enhancing the connection strength between the first pipe body 1 and the second pipe body 2 when the support plate 3 is welded to them.
[0034] Specifically, in this embodiment, the first wing plate 11 and the second wing plate 21 have the same bent structure as the support plate 3. When the support plate 3 is placed between the first wing plate 11 and the second wing plate 21, the support plate 3 can be bent to position the installation position of the support plate 3.
[0035] In some embodiments, the first wing 11 and the second wing 21 may be adopted as follows: Figure 3 The structure shown. See also Figure 3 A base plate 4 is fixedly connected between the first wing plate 11 and the second wing plate 21, and the base plate 4 is located below the first tube body 1 and the second tube body 2. The base plate 4 is welded between the first wing plate 11 and the second wing plate 21, respectively, and is fixedly connected to the first wing plate 11 and the second wing plate 21 by welding. It is located at the bottom of the first wing plate 11 and the second wing plate 21, thus providing support from the bottom of the first wing plate 11 and the second wing plate 21. This prevents deformation of the relative position of the two first wing plates 11 or the two second wing plates 21, further improving the stability of the relative position of the first tube body 1 and the second tube body 2.
[0036] Specifically, in this embodiment, the base plate 4 is located below the first tube 1 and the second tube 2, and is fixedly connected to the bottom of the first tube 1 and the second tube 2 by welding.
[0037] In some embodiments, the base plate 4 may be adopted as follows: Figure 3 The structure shown. See also Figure 3 The base plate 4 rests against the inclined plate 31 on the support plate 3, and a connecting plate 41, parallel to the inclined plate 31, is bent and fixedly installed on the base plate 4. A connecting plate 41 is also bent at the side of the base plate 4 to fit against the side of the inclined plate 31. The connecting plate 41 is fixedly installed on the inclined plate 31 by welding. The connecting plate 41 helps to position the base plate 4 on the support plate 3. Furthermore, when the base plate 4 is welded and fixed to the support plate 3, it increases the thickness and strength of the support plate 3.
[0038] In some embodiments, the base plate 4 may be adopted as follows: Figure 3 The structure shown. See also Figure 3 An adjusting plate 5 is fixedly connected between the two base plates 4, and the adjusting plate 5 is fixedly connected to the first tube 1 and the second tube 2. After the two base plates 4 are fixed to the two first wing plates 11 or the second wing plates 21, a gap is provided between the two base plates 4 for placing the adjusting plate 5. The two ends of the adjusting plate 5 are respectively fixedly installed on the first tube 1 and the second tube 2. The bottoms of the first tube 1 and the second tube 2 can be fixedly connected together through the base plates 4 and the adjusting plate 5, which can strengthen the connection between the first tube 1 and the second tube 2.
[0039] In some embodiments, the first tube 1 and the second tube 2 may be adopted as follows: Figure 3 The structure shown. See also Figure 3 A first reinforcing plate 6, connected to the roots of two first wing plates 11, is fixedly installed at the bottom of the first tube body 1. A second reinforcing plate 7, connected to the roots of two second wing plates 21, is fixedly installed at the bottom of the second tube body 2. The first reinforcing plate 6, the first tube body 1, and the first wing plates 11 are integrally cast. The second reinforcing plate 7, the second tube body 2, and the second wing plates 21 are integrally cast. An adjusting plate 5 and a base plate 4 are fixedly connected between the first reinforcing plate 6 and the second reinforcing plate 7 by welding. Welding bevels for welding the base plate 4 and the adjusting plate 5 are machined on the first reinforcing plate 6 and the second reinforcing plate 7, thereby strengthening the connection between the first reinforcing plate 6 and the second reinforcing plate 7.
[0040] Preferably, in this embodiment, the first reinforcing plate 6 and the second reinforcing plate 7 are further provided with fixing holes for fixing to the remaining components. The remaining components can be connected to the walking frame.
[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A walking frame welded assembly structure, characterized in that, include: First tube body (1), with first wing plates (11) extending outward on both sides of the first tube body (1); The second tube (2) has its opening welded to the opening of the first tube (1), and the two sides of the second tube (2) are provided with second wing plates (21) extending outward. A support plate (3) is installed between the first wing plate (11) and the second wing plate (21) on the same side of the first tube (1) and the second tube (2), and is welded to the first wing plate (11) and the second wing plate (21) respectively. One side of the support plate (3) is supported on the outer side wall of the first tube (1) and the second tube (2), and is welded to the first tube (1) and the second tube (2).
2. The walking frame welded assembly structure as described in claim 1, characterized in that, Welding grooves (111) are recessed at the sides where the first wing plate (11) and the second wing plate (21) connect to the support plate (3), and the side of the support plate (3) abuts against the bottom of the welding grooves (111).
3. The walking frame welded assembly structure as described in claim 2, characterized in that, The sidewall of the welding groove (111) and the side of the support plate (3) are inclined to form a welding bevel.
4. The walking frame welded assembly structure as described in claim 1, characterized in that, The first wing plate (11) has an L-shaped notch recessed on one side near the support plate (3), and the support plate (3) has a protruding part (33) that is welded to the inner wall of the L-shaped notch.
5. The walking frame welded assembly structure as described in claim 4, characterized in that, The support plate (3) includes an inclined plate (31) and a side plate (32) arranged at an angle, and the sides of the first wing plate (11) and the second wing plate (21) are adapted to the sides of the support plate (3).
6. The walking frame welded assembly structure as described in claim 5, characterized in that, A base plate (4) is fixedly connected between the first wing plate (11) and the second wing plate (21), and the base plate (4) is located below the first tube body (1) and the second tube body (2).
7. The walking frame welded assembly structure as described in claim 6, characterized in that, The base plate (4) abuts against the inclined plate (31) on the support plate (3), and a connecting plate (41) is bent on the base plate (4) and arranged parallel to the inclined plate (31). The connecting plate (41) is fixedly installed on the inclined plate (31).
8. The walking frame welded assembly structure as described in claim 7, characterized in that, An adjustment plate (5) is fixedly connected between the two base plates (4), and the adjustment plate (5) is fixedly connected to the first tube body (1) and the second tube body (2).
9. The walking frame welded assembly structure as described in claim 6, characterized in that, The bottom of the first tube (1) is fixedly installed with a first reinforcing plate (6) connected to the root of the two first wing plates (11), and the bottom of the second tube (2) is fixedly installed with a second reinforcing plate (7) connected to the root of the two second wing plates (21).