Reinforcing cross beam and frame of off-highway mining dump truck

Abstract

The utility model discloses a reinforcing cross beam and a frame of an off-highway mining dump truck. The reinforcing cross beam comprises a tubular beam, the beam casting comprises a first welding end, a second welding end and a welding plate which are integrally cast, the welding plate and the first welding end are in circular arc transition, the first welding end is welded with the tubular beam, the welding plate is welded with an inner web plate of the frame longitudinal beam, and the second welding end is welded with an outer web plate of the frame longitudinal beam. According to the utility model, the risk of cracking at the weld joint of the reinforcing cross beam and the vehicle longitudinal beam can be effectively avoided, and the frame failure fault caused by cracking is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mining engineering machinery and transportation technology, and more specifically, to a reinforced cross beam and frame of an off-road mining dump truck. Background Art

[0002] Existing crossbeams are generally welded to the inner web of the longitudinal beam by using square rectangular tubes or round tubes with large plates attached to the end faces, such as the invention patent with application number 202011224784.8 and patent name "A chassis structure assembly and vehicle". However, welding on the inner web of the longitudinal beam will cause cracks at the weld of the inner web, which will cause failure of the frame, resulting in long-term parking and even the scrapping of the entire vehicle. Therefore, it is necessary to design a technical solution that can overcome the above defects to a certain extent. Utility Model Content

[0003] One purpose of the utility model is to provide a reinforced crossbeam and a frame for an off-road mining dump truck, which can effectively avoid the risk of cracking at the weld between the reinforced crossbeam and the vehicle longitudinal beam, and avoid frame failure caused by cracking.

[0004] In order to achieve these purposes and other advantages of the utility model, according to one aspect of the utility model, a reinforced cross beam for an off-road mining dump truck is provided, comprising: a tubular beam; a cross beam casting, which includes a first welding end, a second welding end and a welding plate cast in one piece, the welding plate and the first welding end have an arc transition, the first welding end is welded to the tubular beam, the welding plate is welded to the inner web of the frame longitudinal beam, and the second welding end is welded to the outer web of the frame longitudinal beam.

[0005] Furthermore, a plurality of first reinforcing ribs are provided between the first welding end and the welding plate, and an area enclosed by the plurality of first reinforcing ribs, the welding plate and the first welding end forms an arc transition.

[0006] Furthermore, at least two second reinforcing ribs are arranged between the second welding end and the welding plate.

[0007] Furthermore, an outer diameter reduction portion is formed at the end of the tube beam, and the outer diameter reduction portion is inserted into the first welding end. The contact portion between the first welding end and the end of the tube beam is formed with a groove for realizing welding of the first welding end and the tube beam.

[0008] Furthermore, the inner web and the outer web are respectively provided with through holes matching the welding plate and the second welding end, the welding plate fills the through hole on the inner web and is welded to the inner web using the contact part, and the second welding end passes through the through hole on the outer web and is welded to the outer web using the passing part.

[0009] Furthermore, when the second welding end passes through the through hole on the outer web and the welding plate fills the through hole on the inner web, the second reinforcing rib abuts against the inner side of the outer web.

[0010] Furthermore, it also includes an A-frame support, which is sleeved on the tubular beam and welded to the tubular beam.

[0011] According to another aspect of the utility model, an off-road mining dump truck frame includes the off-road mining dump truck reinforced cross beam.

[0012] The utility model at least has the following beneficial effects:

[0013] The utility model comprises a tube beam and a cross beam casting, the cross beam casting comprises a first welding end, a second welding end and a welding plate which are cast in one piece, the welding plate and the first welding end have an arc transition, the first welding end is welded to the tube beam, the welding plate is welded to the inner web of the frame longitudinal beam, and the second welding end is welded to the outer web of the frame longitudinal beam; the cross beam casting can play the role of positioning and welding pad during welding, and can also effectively avoid the risk of cracking at the weld between the reinforced cross beam and the vehicle longitudinal beam, avoid the failure of the frame caused by the cracking, and all the welds are exposed to the outside, which is convenient for subsequent inspection and repair.

[0014] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 An exploded view of an embodiment of the present application;

[0016] Figure 2 A cross-sectional view of an embodiment of the present application;

[0017] Figure 3 This is a welding schematic diagram of an embodiment of the present application. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0019] It should be understood that the terms such as "having", "including" and "comprising" used in the embodiments of the present application do not exclude the existence or addition of one or more other elements or their combinations. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture. If the specific posture changes, the directional indication also changes accordingly. When an element is referred to as "fixed on" or "set on" another element, it can be directly on another element or there may be a centering element at the same time. When an element is referred to as "connecting" another element, it can be directly connected to another element or it can also be indirectly connected to another element through a centering element. The description of the embodiments of the present application involving "first", "second", etc. is only for descriptive purposes, and cannot be understood as indicating or implying its relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features.

[0020] It should be noted that the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0021] like Figure 1 , 2 As shown, the embodiment of the present application provides a reinforced cross beam for an off-road mining dump truck, including: a tube beam 1; a cross beam casting 3, which includes a first welding end 301, a second welding end 302 and a welding plate 303 cast in one piece, the welding plate 303 and the first welding end 301 have an arc transition, the first welding end 301 is welded to the tube beam 1 to achieve connection with the tube beam 1, the welding plate 303 is welded to the inner web 8 of the frame longitudinal beam, and the second welding end 302 is welded to the outer web 5 of the frame longitudinal beam to achieve connection with the frame longitudinal beam;

[0022] Exemplarily, the tubular beam 1 is made of a seamless steel pipe with a large cross-section, which can provide sufficient torsional rigidity for the frame and improve the reliability of the entire vehicle.

[0023] Exemplarily, the first welding end 301 is circular, which is convenient for overlapping and welding with the pipe beam 1;

[0024] Exemplarily, the welding plate 303 is rectangular, and its edges are welded to the inner web 8;

[0025] Exemplarily, the second welding end 302 is circular, rectangular, pentagonal, hexagonal, etc.;

[0026] Exemplarily, the size of the welding plate 303 and the first welding end 301 is gradually reduced and has an arc transition, which can prevent root cracking;

[0027] Compared with the prior art which welds the end faces to the inner web 8 of the longitudinal beam by welding a large plate, this embodiment uses a prefabricated crossbeam casting 3 to match the frame longitudinal beam, which can play the role of positioning and welding pad during welding, improve the welding quality, and effectively avoid the risk of cracking at the weld between the reinforced crossbeam and the vehicle longitudinal beam, avoid cracking and causing frame failure, and all welds are exposed to the outside, which is convenient for subsequent inspection and repair.

[0028] In another embodiment, a plurality of first reinforcing ribs 304 are arranged between the first welding end 301 and the welding plate 303 for strengthening the connection strength between the welding plate 303 and the first welding end 301. The area enclosed by the plurality of first reinforcing ribs 304, the welding plate 303 and the first welding end 301 has an arc transition, that is, the arc transition and the first reinforcing ribs 304 are arranged at intervals, so as to further strengthen the connection strength and further avoid the risk of cracking at the weld between the reinforced cross beam and the vehicle longitudinal beam; illustratively, the number of the first reinforcing ribs 304 is 4, and they are evenly spaced.

[0029] In another embodiment, at least two second reinforcing ribs 305 are disposed between the second welding end 302 and the welding plate 303 to strengthen the connection strength between the welding plate 303 and the second welding end 302 .

[0030] In another embodiment, an outer diameter reducing portion is formed at the end of the tube beam 1, and the outer diameter reducing portion is inserted into the first welding end 301. The contact portion between the first welding end 301 and the end of the tube beam 1 forms a groove for realizing the welding of the first welding end 301 and the tube beam 1; that is, the tube beam 1 is inserted into the first welding end 301 through the outer diameter reducing portion, and an inserted overlap is realized with the first welding end 301, and grooves are arranged on both sides of the overlap portion for welding, and the first welding end 301 can play the role of a welding pad, thereby improving the welding quality.

[0031] In another embodiment, the inner web 8 and the outer web 5 are respectively provided with through holes matching the welding plate 303 and the second welding end 302, the welding plate 303 fills the through hole on the inner web 8, and is welded to the inner web 8 by using the contact portion, and the weld 307 is as shown in FIG. Figure 3 As shown, the second welding end 302 passes through the through hole on the outer web 5, and is welded to the outer web 5 using the passing portion, and the weld 306 is as shown in FIG. Figure 3 As shown, the portion of the welding plate located inside the longitudinal beam presses against the upper wing surface 6 and the lower wing surface 7; that is, through holes are reserved on the inner web 8 and the outer web 5, respectively, for matching and installing the welding plate 303 and the second welding end 302, respectively, to facilitate welding without the need for a welding pad, which is equivalent to using the welding plate 303 as a part of the inner web 8, and the connection strength is higher.

[0032] In another embodiment, when the second welding end 302 passes through the through hole on the outer web 5 and the welding plate 303 fills the through hole on the inner web 8, the second reinforcing rib 305 interferes with the inner side of the outer web 5; that is, by setting the length of the second reinforcing rib 305 for positioning, the second welding end 302 and the welding plate 303 are both exactly in various through holes, thereby improving the matching installation accuracy and improving the welding quality.

[0033] In another embodiment, it also includes an A-frame 2 support, which is sleeved on the tubular beam 1 and welded to the tubular beam 1; illustratively, the A-frame 2 support is welded from low-alloy high-strength plates, has high manufacturing efficiency and good processing technology, and is welded from a mounting plate, a rib plate and a pasting plate. The mounting plate has a 45° groove on one side and is welded to the tubular beam 11. Two multi-layer welds provide sufficient strength for the A-frame 2 support.

[0034] The embodiment of the present application also provides an off-road mining dump truck frame, including a reinforced crossbeam for an off-road mining dump truck; and also includes a longitudinal beam, the reinforced crossbeam is welded to the longitudinal beam through a crossbeam casting 3; compared with the prior art of welding the end face to the inner web 8 of the longitudinal beam by attaching a large plate, the frame of this embodiment uses a prefabricated crossbeam casting 3 to match the frame longitudinal beam, which can play the role of positioning and welding pad during welding, improve the welding quality, and can also effectively avoid the risk of cracking at the weld between the reinforced crossbeam and the vehicle longitudinal beam, avoid cracking and cause frame failure, and all welds are exposed to the outside, which is convenient for subsequent inspection and repair.

[0035] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. The reinforced cross beam of the off-road mining dump truck is characterized by: include: Tube beam; The crossbeam casting comprises a first welding end, a second welding end and a welding plate which are cast in one piece. The welding plate and the first welding end are in arc transition. The first welding end is welded to the tube beam, the welding plate is welded to the inner web of the frame longitudinal beam, and the second welding end is welded to the outer web of the frame longitudinal beam.

2. The off-road mining dump truck reinforcement beam according to claim 1, characterized in that: A plurality of first reinforcing ribs are arranged between the first welding end and the welding plate, and an area enclosed by the plurality of first reinforcing ribs, the welding plate and the first welding end forms an arc transition.

3. The reinforced cross beam of the off-road mining dump truck according to claim 1, characterized in that: At least two second reinforcing ribs are arranged between the second welding end and the welding plate.

4. The reinforced cross beam of an off-road mining dump truck according to claim 1, characterized in that: The end of the tube beam is formed with an outer diameter reduction portion, the outer diameter reduction portion is inserted into the first welding end, and the contact portion between the first welding end and the end of the tube beam is formed with a groove for realizing welding of the first welding end and the tube beam.

5. The reinforced cross beam of an off-road mining dump truck as claimed in claim 3, characterized in that: The inner web and the outer web are respectively provided with through holes matching the welding plate and the second welding end. The welding plate fills the through hole on the inner web and is welded to the inner web using the contact portion. The second welding end passes through the through hole on the outer web and is welded to the outer web using the passing portion.

6. The reinforced cross beam of an off-road mining dump truck as claimed in claim 5, characterized in that: When the second welding end passes through the through hole on the outer web and the welding plate fills the through hole on the inner web, the second reinforcing rib abuts against the inner side of the outer web.

7. The reinforced cross beam of an off-road mining dump truck according to claim 1, characterized in that: It also includes an A-frame support, which is sleeved on the tube beam and welded to the tube beam.

8. Off-road mining dump truck frame, characterized in that: The invention comprises the reinforced cross beam of an off-road mining dump truck as described in any one of claims 1-7.

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