Loader transmission shaft protection structure

Abstract

The utility model discloses a loader transmission shaft protection structure, and relates to the technical field of loader structure connection. The utility model aims to provide a loader transmission shaft protection structure, which consists of a shock absorber assembly, a support welding assembly and a baffle plate, and can solve the problem that the transmission shaft of a large-tonnage loader, which is connected with a gearbox and an engine, is broken because the engine still rotates and the whole loader still walks. And other parts are damaged by rotation of the transmission shaft. The protection structure is high in overall structural strength, large in protection range and suitable for large-tonnage loaders, and the overall service life of the protection structure is prolonged due to shock-absorbing connection with the frame.

Description

Technical Field

[0001] The utility model relates to the technical field of loader structure connection, in particular to a loader transmission shaft protection structure. Background Art

[0002] The transmission and engine connection for large-tonnage loaders are typically split, relying on a drive shaft to connect the transmission input and engine output. This drive shaft is surrounded by numerous key components, including various electrical components and hydraulic pumps. The drive shaft itself acts as a "fuse," with a shorter lifespan than other components. Fatigue-induced fracture or excessive input torque exceeding its strength could damage other components to varying degrees, leading to significant economic losses and even accidents. Utility Model Content

[0003] The purpose of the utility model is to provide a loader transmission shaft protection structure. The system can solve the problem that after the transmission shaft connecting the gearbox and the engine of a large-tonnage loader is broken, the engine is still rotating and the whole vehicle is still moving, and the transmission shaft rotates to damage other parts. The system better protects the whole machine and prevents further damage to the transmission shaft.

[0004] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A loader transmission shaft protection structure includes: a shock absorber assembly, a support welding assembly and a baffle. Four groups of shock absorber assemblies are connected to the vehicle frame and the support welding assembly. Two baffles are arranged up and down to form a circular ring and connected to the support welding assembly.

[0006] Furthermore, the support welding assembly is welded together by six ribs, two symmetrically arranged blocks, a bracket, and two mounting bases.

[0007] Furthermore, the bracket is M-shaped.

[0008] Furthermore, mounting bases are respectively welded under the two legs of the M-shaped bracket.

[0009] Furthermore, the blocks are symmetrically welded above the same side of the M-shaped bracket.

[0010] Furthermore, the two semicircular annular baffles are fixed to the two blocks of the M-shaped bracket by hexagonal bolts and flat washers.

[0011] Furthermore, the ribs are respectively arranged at four corners formed by welding the bracket and the two mounting bases and at two corners formed by welding the bracket and the two blocks.

[0012] Furthermore, the shock absorber assembly is composed of a hexagonal head bolt, a flat washer, a steel pipe, a rubber pad, and a hexagonal flange nut.

[0013] Furthermore, the rubber pads are arranged on the upper and lower sides of the support welding assembly base, and the steel pipe is arranged on the inner side of the rubber pad outside the hexagonal head bolt, and the length of the steel pipe is from the top surface of the upper rubber pad to the bottom surface of the lower rubber pad.

[0014] Furthermore, the protective structure is installed at a position away from one side of the engine or close to the middle of the transmission shaft.

[0015] The beneficial effects of the utility model are:

[0016] The protective structure of the utility model is composed of a shock absorber assembly, a support welding assembly and a baffle, which can prevent the drive shaft from swinging after the drive shaft breaks. The overall structural strength is high and it is suitable for large-tonnage loaders. The two baffles are arranged in a circular ring up and down and separated from the bracket by a block, which increases the stability of the drive shaft fixation, lengthens the protection length, and can protect the entire machine over a large range. The structural strength is enhanced by welding multiple ribs, and the structure is reliable and safe. The overall bracket is M-shaped, which comprehensively considers the function of providing a fixed position for the drive shaft and the characteristics of ensuring that the bracket itself needs to be shock-absorbing and anti-fracture. The protective structure is connected to the frame for shock absorption, which extends the service life of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the installation structure of the transmission shaft protection structure of the utility model on the vehicle frame.

[0018] Figure 2 This is a schematic diagram of the overall structure of the transmission shaft protection structure of the present utility model.

[0019] Figure 3 This is a schematic diagram of the support welding assembly structure of the utility model.

[0020] Figure 4 This is a schematic diagram of the assembly structure of the shock absorber of the utility model.

[0021] In the figure, 1. shock absorber assembly, 2. support welding assembly, 3. hexagonal head bolt, 4. flat washer, 5. baffle, 6. rib, 7. block, 8. bracket, 9. mounting base, 10. steel pipe, 11. rubber pad, 12. hexagonal flange nut. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is described in detail below with reference to the accompanying drawings.

[0023] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] In the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "side", and "bottom" are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0026] In this utility model, terms such as "connection" should be interpreted broadly, meaning that they can be fixedly connected, integrally connected, or detachably connected; they can be directly connected or indirectly connected through an intermediary. Those skilled in the art will be able to determine the specific meaning of these terms in this utility model based on specific circumstances, and they should not be construed as limiting this utility model.

[0027] In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0028] Figure 1 The middle transmission shaft protection structure is mounted on the vehicle frame through the shock absorber assembly 1.

[0029] Figure 2 The central drive shaft protection structure consists of a shock absorber assembly 1, a support weld assembly 2, hexagonal bolts 3, flat washers 4, and baffles 5. Four shock absorber assemblies 1 connect the vehicle frame and support weld assembly 2 to reduce vibration. Hexagonal bolts 3 and flat washers 4 connect two baffles 5 to the support weld assembly 2. The two baffles 5 are arranged in a circular ring, protecting the drive shaft. This structure prevents the drive shaft from swinging if it breaks. Furthermore, the entire structure is long, providing a wide range of protection.

[0030] Figure 3The middle support welding assembly 2 is composed of six ribs 6, two symmetrically arranged blocks 7, a bracket 8, and two mounting bases 9 welded together. The two legs of the M-shaped bracket 8 are respectively connected to the mounting base 9. A block is welded to each of the two ends of the same side above the M-shaped bracket 8. Two semicircular baffles 5 are connected and fixed to the two blocks 7 of the M-shaped bracket 8 by hexagonal head bolts 3 and flat washers 4. There is a distance between the bracket and the baffle, which increases the stability of the drive shaft fixation, and at the same time, the block increases the protection length of the protective structure. The ribs 6 are respectively arranged at the four corners formed by welding the bracket 8 and the two mounting bases 9, and at the two corners formed by welding the bracket 8 and the two blocks 7. By welding multiple ribs 6, the structural strength is enhanced, the structure is reliable, and the safety is high. The overall bracket 8 is M-shaped, which comprehensively considers the function of providing a fixed position for the drive shaft and the characteristics of ensuring that the structure of the bracket 8 itself needs to be shock-absorbing and anti-fracture.

[0031] Figure 4 The middle shock absorber assembly consists of a hexagonal bolt 3, a flat washer 4, a steel pipe 10, a rubber pad 11, and a hexagonal flange nut 12. Rubber pads 11 are placed on both the upper and lower sides of the protective frame, and the steel pipe 10 is placed in the middle, which can effectively absorb shock and prevent the rubber pad 11 from collapsing.

[0032] Research has shown that fracture usually occurs at the root or middle of the drive shaft close to the engine side. In order for the bracket to effectively protect the drive shaft, the fracture position of the drive shaft should be outside the bracket. Therefore, the drive shaft protection structure is installed at a position away from the engine side or near the middle to ensure that the bracket can withstand the swinging impact caused by the broken drive shaft when it fractures.

[0033] The scope of protection of the present invention is limited solely by the claims. Thanks to the teachings of the present invention, those skilled in the art will readily recognize that alternative structures to the structures disclosed in the present invention may be used as viable alternative embodiments, and that the embodiments disclosed in the present invention may be combined to produce new embodiments, which also fall within the scope of the appended claims.

Claims

1. A loader transmission shaft protection structure, characterized in that: include: Shock absorber assembly, support welding assembly and baffle, four groups of shock absorber assemblies are connected to the frame and support welding assembly, and two baffles are arranged up and down to form a ring connected to the support welding assembly.

2. The loader transmission shaft protection structure according to claim 1, characterized in that: The support welding assembly is welded together by six ribs, two symmetrically arranged blocks, a bracket, and two mounting bases.

3. The loader transmission shaft protection structure according to claim 2, characterized in that: The bracket is M-shaped.

4. The loader transmission shaft protection structure according to claim 3, characterized in that: Mounting bases are welded below the two legs of the M-shaped bracket.

5. The loader transmission shaft protection structure according to claim 3, characterized in that: The blocks are symmetrically welded above the same side of the M-shaped bracket.

6. The loader transmission shaft protection structure according to claim 1, characterized in that: The two baffles are fixed to the two pieces of the M-shaped bracket by hexagonal bolts and flat washers.

7. The loader transmission shaft protection structure according to claim 2, characterized in that: The ribs are respectively arranged at four corners formed by welding the bracket and the two mounting bases and at two corners formed by welding the bracket and the two blocks.

8. The loader transmission shaft protection structure according to claim 1, wherein: The shock absorber assembly consists of a hexagonal head bolt, a flat washer, a steel pipe, a rubber pad, and a hexagonal flange nut.

9. The loader transmission shaft protection structure according to claim 8, characterized in that: The rubber pads are arranged on the upper and lower sides of the support welding assembly base, and the steel pipe is arranged on the inner side of the rubber pad outside the hexagonal head bolt. The length of the steel pipe is from the top surface of the upper rubber pad to the bottom surface of the lower rubber pad.

10. The loader transmission shaft protection structure according to claim 1, wherein: The protective structure is installed at a position away from one side of the engine or close to the middle of the transmission shaft.

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