Alloy steel large arm of miniature four-wheel-drive loader

Abstract

The utility model relates to the technical field of loader big arms, in particular to a miniature four-wheel-drive loader alloy steel big arm which comprises a connecting rod and two rocker arms, and the two rocker arms are fixed to the two ends of the connecting rod one by one. A pressure relief opening is formed in the left side of the surface of the rocker arm, a plurality of longitudinal pressure relief plates are fixed in the pressure relief opening, a plurality of transverse pressure relief plates are arranged in the pressure relief opening, at least two pressure relief holes are formed in the right side of the surface of the rocker arm, cross pressure relief plates are fixed in the pressure relief holes, and a bent part is arranged in the middle of the upper end of the rocker arm; according to the large arm of the loader, the bearing capacity and the anti-fatigue performance of the large arm of the loader can be improved, meanwhile, the overall weight is reduced, the fuel economy and the working efficiency of the loader are improved, and the problem that the bearing capacity and the anti-fatigue performance of the bent part of the rocker arm are insufficient can be solved by arranging the reinforcing rod on the bent part of the rocker arm.

Description

Technical Field

[0001] The utility model relates to the technical field of loader arms, in particular to an alloy steel arm of a miniature four-wheel drive loader. Background Art

[0002] A loader is a kind of earthwork construction machinery widely used in construction projects such as highways, railways, buildings, hydropower, ports, and mines. It is mainly used to shovel and load bulk materials such as soil, sand, lime, and coal. It can also do light shoveling and digging of ore and hard soil. It can also do bulldozing, lifting, and loading and unloading of other materials such as wood by replacing different auxiliary working devices. The loader's arm is a very important transmission part.

[0003] The existing alloy steel arms of micro four-wheel drive loaders, with the rapid development of micro loaders, their performance and reliability have a direct impact on the user experience and quality. Traditional micro loader arms are mostly made of steel materials, which have problems of poor strength and insufficient fatigue resistance. Therefore, the development of a new type of lightweight, high-strength alloy steel arm is of great significance to improving the overall performance of the loader. Utility Model Content

[0004] The utility model provides an alloy steel big arm of a miniature four-wheel drive loader, which is beneficial to ensuring the strength difference and fatigue resistance of the big arm of the loader and is beneficial to improving the overall performance of the loader.

[0005] In order to solve the problems of the prior art, the utility model discloses an alloy steel arm of a miniature four-wheel drive loader, comprising a connecting rod and two rocker arms, wherein the two rocker arms are fixed to both ends of the connecting rod one by one;

[0006] A pressure relief port is opened on the left side of the rocker arm surface, and a plurality of longitudinal pressure relief plates are fixed in the pressure relief port, and a plurality of transverse pressure relief plates are arranged inside the pressure relief port. At least two pressure relief holes are opened on the right side of the rocker arm surface, and a cross pressure relief plate is fixed in each of the pressure relief holes. A bending portion is provided in the middle of the upper end of the rocker arm, and a reinforcing rod is fixed at the bending portion.

[0007] Furthermore, two first reinforcement blocks distributed front to back are fixed on both left and right sides of the connecting rod, and the first reinforcement blocks are fixed to the inner side surfaces of adjacent rocker arms.

[0008] Furthermore, ventilation holes are provided on the first reinforcement blocks.

[0009] Furthermore, at least two second reinforcement blocks are fixed to the outer side of the lower end of the connecting rod.

[0010] Furthermore, three mounting holes are sequentially opened on the surface of the rocker arm from left to right.

[0011] Furthermore, the longitudinal pressure relief plates and the transverse pressure relief plates are alternately distributed in a grid shape, the transverse pressure relief plates are all fixed to adjacent longitudinal pressure relief plates, and the ends of the outermost transverse pressure relief plates are fixed to the inner wall of the pressure relief port.

[0012] Compared with the prior art, the utility model achieves the following beneficial effects:

[0013] 1. The pressure relief port is used to relieve the bearing capacity of the left end of the rocker arm. The horizontal pressure relief plates and the longitudinal pressure relief plates are alternately distributed in a grid shape, which is conducive to improving the support strength inside the pressure relief port, thereby effectively ensuring the bearing capacity and fatigue resistance of the left end of the rocker arm;

[0014] 2. The pressure relief hole is used to relieve pressure on the right end of the rocker arm, and the cross pressure relief plate is supported in the pressure relief hole, which effectively ensures the bearing capacity and fatigue resistance of the right end of the rocker arm. In addition, the hollow design of the pressure relief port and the pressure relief hole is conducive to reducing the overall weight of the rocker arm. In summary, it is conducive to improving the bearing capacity and fatigue resistance of the loader arm, while reducing the overall weight, and improving the fuel economy and operating efficiency of the loader;

[0015] 3. By arranging a reinforcing rod at the bending part of the rocker arm, the problem of insufficient bearing capacity and fatigue resistance at the bending part of the rocker arm can be avoided, thereby better ensuring the bearing capacity and fatigue resistance of the loader arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the rocker arm plan structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the overall horizontal top plan structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the overall vertical top plan structure of the utility model.

[0020] Figure 1-4 Middle: connecting rod 1, rocker arm 2, first reinforcement block 3, ventilation hole 4, second reinforcement block 5, reinforcement rod 6, pressure relief port 7, longitudinal pressure relief plate 8, transverse pressure relief plate 9, pressure relief hole 10, cross pressure relief plate 11, mounting hole 12, bending portion 13. DETAILED DESCRIPTION

[0021] A micro four-wheel drive loader alloy steel arm:

[0022] like Figure 1-4As shown, in this embodiment, a connecting rod 1 and two rocker arms 2 are included, and the two rocker arms 2 are fixed one by one at the two ends of the connecting rod 1. A pressure relief port 7 is opened on the left side of the surface of the rocker arm 2, and a plurality of longitudinal pressure relief plates 8 are fixed in the pressure relief port 7, and a plurality of transverse pressure relief plates 9 are arranged inside the pressure relief port 7. The longitudinal pressure relief plates 8 and the transverse pressure relief plates 9 are alternately distributed in a grid shape, and the transverse pressure relief plates 9 are all fixed to the adjacent longitudinal pressure relief plates 8, and the end of the outermost transverse pressure relief plate 9 is fixed to the inner wall of the pressure relief port 7.

[0023] By providing a pressure relief port 7 and arranging a plurality of transverse pressure relief plates 9 and a longitudinal pressure relief plate 8 in the pressure relief port 7, the pressure relief port 7 is conducive to relieving the bearing capacity of the left end of the rocker arm 2. The transverse pressure relief plates 9 and the longitudinal pressure relief plates 8 are alternately distributed in a grid shape, which is conducive to improving the supporting strength inside the pressure relief port 7 and preventing deformation inside the pressure relief port 7, thereby effectively ensuring the bearing capacity and fatigue resistance of the left end of the rocker arm 2. Moreover, the hollow design of the pressure relief port 7 is conducive to reducing the overall weight of the rocker arm 2.

[0024] like Figure 1-2 As shown, in this embodiment, at least two pressure relief holes 10 are opened on the right side of the surface of the rocker arm 2 , and a cross pressure relief plate 11 is fixed in each of the pressure relief holes 10 .

[0025] Moreover, by setting at least two pressure relief holes 10 on the right side of the surface of the rocker arm 2, the pressure relief holes 10 are conducive to relieving the bearing capacity of the right end of the rocker arm 2, and are supported in the pressure relief holes 10 by the cross pressure relief plates 11, thereby preventing the internal deformation of the pressure relief holes 10, effectively ensuring the bearing capacity and fatigue resistance of the right end of the rocker arm 2, and the hollow design of the pressure relief holes 10 is conducive to reducing the overall weight of the rocker arm 2. In summary, it is conducive to improving the bearing capacity and fatigue resistance of the loader arm, while reducing the overall weight, thereby improving the fuel economy and operating efficiency of the loader.

[0026] like Figure 1-2 As shown, in this embodiment, a bending portion 13 is provided at the middle of the upper end of the rocker arm 2 , and a reinforcing rod 6 is fixed at the bending portion of the bending portion 13 .

[0027] In addition, by providing a reinforcing rod 6 at the bending portion 13 of the rocker arm 2, the problem of insufficient load-bearing capacity and fatigue resistance at the bending portion 13 of the rocker arm 2 can be avoided, and deformation of the rocker arm 2 at the bending portion 13 can be prevented, thereby better ensuring the load-bearing capacity and fatigue resistance of the loader arm.

[0028] like Figure 1 , 3 As shown, in this embodiment, two first reinforcement blocks 3 distributed front to back are fixed on both sides of the connecting rod 1 , and the first reinforcement blocks 3 are fixed to the inner side surfaces of the adjacent rocker arms 2 .

[0029] The first reinforcing block 3 is provided to strengthen the connection between the fixed connecting rod 1 and the rocker arm 2, which is beneficial to improving the bearing capacity and fatigue resistance of the connection between the connecting rod 1 and the rocker arm 2, and effectively improving the bearing strength of the loader arm.

[0030] like Figure 1 , 3 As shown, in this embodiment, ventilation holes 4 are provided on the first reinforcement blocks 3 .

[0031] By arranging the ventilation holes 4 on the first reinforcing block 3, when the rocker arm 2 swings up and down, the wind resistance can be reduced through the ventilation holes 4, thereby reducing the wind resistance when the loader arm moves.

[0032] like Figure 1 As shown, in this embodiment, at least two second reinforcement blocks 5 are fixed to the outer side of the lower end of the connecting rod 1 .

[0033] The second reinforcing block 5 is provided to improve the overall strength of the connecting rod 1 , thereby preventing the connecting rod 1 from deforming.

[0034] like Figure 1 As shown, in this embodiment, three mounting holes 12 are sequentially opened on the surface of the rocker arm 2 from left to right.

[0035] By providing the mounting hole 12, it is convenient to mount the rocker arm 2 on the pre-mounting part of the loader.

Claims

1. A micro four-wheel drive loader alloy steel boom, comprising a connecting rod (1) and two rocker arms (2), wherein the two rocker arms (2) are fixed to both ends of the connecting rod (1), characterized in that: A pressure relief port (7) is provided on the left side of the surface of the rocker arm (2), a plurality of longitudinal pressure relief plates (8) are fixed in the pressure relief port (7), and a plurality of transverse pressure relief plates (9) are provided inside the pressure relief port (7). At least two pressure relief holes (10) are provided on the right side of the surface of the rocker arm (2), a cross pressure relief plate (11) is fixed in each of the pressure relief holes (10). A bending portion (13) is provided at the middle of the upper end of the rocker arm (2), and a reinforcing rod (6) is fixed at the bending portion of the bending portion (13).

2. The alloy steel arm of a mini four-wheel drive loader according to claim 1, characterized in that: Two first reinforcement blocks (3) distributed front to back are fixed to both left and right sides of the connecting rod (1), and the first reinforcement blocks (3) are fixed to the inner side surfaces of adjacent rocker arms (2).

3. The alloy steel arm of a mini four-wheel drive loader according to claim 2, characterized in that: The first reinforcement blocks (3) are each provided with ventilation holes (4).

4. The alloy steel arm of a mini four-wheel drive loader according to claim 1, characterized in that: At least two second reinforcement blocks (5) are fixed to the outer side of the lower end of the connecting rod (1).

5. The alloy steel arm of a mini four-wheel drive loader according to claim 1, characterized in that: The surface of the rocker arm (2) is provided with three mounting holes (12) in sequence from left to right.

6. The alloy steel arm of a mini four-wheel drive loader according to claim 1, characterized in that: The longitudinal pressure relief plates (8) and the transverse pressure relief plates (9) are alternately distributed in a grid pattern, the transverse pressure relief plates (9) are all fixed to adjacent longitudinal pressure relief plates (8), and the ends of the outermost transverse pressure relief plates (9) are fixed to the inner side walls of the pressure relief ports (7).

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