Wheel-side supporting shaft mechanism of loading machine

Abstract

The utility model discloses a loading machine wheel edge supporting shaft mechanism which comprises a supporting shaft body, a reinforcing shell, an inner supporting structure and a connecting flange plate, a first-level connecting ring is welded to the right side of the supporting shaft body, a third-level connecting ring is welded to the right side of a second-level connecting ring, a second-level reinforcing ring is arranged on the inner surface of the second-level connecting ring, and a third-level reinforcing ring is arranged on the inner surface of the third-level connecting ring. A third-stage reinforcing ring is arranged on the inner surface of the third-stage connecting ring, the inner supporting structure is arranged on the inner surface of the reinforcing shell, a first shaft hole is formed in the left side of the shaft cavity, and a second shaft hole is formed in the right side of the shaft cavity. According to the wheel edge supporting shaft mechanism of the loading machine, extra support can be provided through the inner supporting structure when the supporting shaft body is subjected to external force, the strength and stability of the whole structure are effectively improved, stress concentration borne by the supporting shaft is reduced, and the supporting shaft is prevented from deforming when being stressed; and the reinforcing shell and the reinforcing ring are arranged at the key parts of the wheel edge supporting shaft, so that the strength and the rigidity of the supporting shaft can be effectively improved, and the bearing capacity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a wheel side supporting shaft mechanism for a loader. Background Art

[0002] The wheel side support shaft is mainly used for the wheel side support at both ends of the vehicle drive axle. It is welded at both ends of the axle housing and is used to connect the drive axle housing and the inner gear ring. The half shaft passes through the middle of the axle tube. When in working state, this part not only has to bear the weight of the vehicle but also has to bear the impact and counter-impact force brought by the road surface during driving. Therefore, it has high requirements for mechanical properties, especially sufficient rigidity, wear resistance and shock resistance. It is a type of security part on the vehicle.

[0003] For example, the patent document with application number 201910851930,0 discloses a wheel support shaft for a loader, which is composed of a flange, a boss, a first blind hole, a threaded hole, a first shaft head, a first shaft shoulder, a second shaft head, a second shaft shoulder, a groove, a spline, a second blind hole, a hydraulic device, a bearing, and a base; along the axis, there are a boss, a flange, a first shaft head, a first shaft shoulder, a second shaft head, a second shaft shoulder, a spline, and a second blind hole in sequence; the edge of the end face of the boss is chamfered for easy assembly; the first blind hole is used for the installation of the matching shaft; there are 8 threaded holes, which are symmetrically arranged for the connection of the flange; a groove is arranged along the circumference of the outer surface of the first shaft head and the second shaft head, and the angle between the annular surface and the axis is 75 degrees; a bearing is installed on the first shaft head, and the bearing is connected to the base through a hydraulic device, which can provide a vertical upward reverse force to the loader wheel support shaft in advance, thereby reducing the force on the loader wheel support shaft; the loader wheel support shaft is made of ductile iron as a whole, and the outer surface is electroplated with wear-resistant alloy steel. The loader wheel side support shaft provided by the invention solves the problems of breakage, wear and tear caused by the shortcomings of the current loader wheel side support shaft in terms of strength, wear resistance and earthquake resistance when used under complex road conditions.

[0004] Similar wheel-side support shafts, due to the variability of road terrain, require vehicles to travel and work on different and uneven ground for a long time, which will cause the support shafts to be frequently vibrated and impacted. These pressures will accelerate the fatigue damage of the support shafts. When the weight carried by the loader exceeds the bearing capacity of the support shafts, the support shafts will be subjected to excessive force, causing them to deform, affecting the stability of the support shafts and causing damage to the support shafts.

[0005] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a loader wheel side support shaft mechanism is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a wheel-side supporting shaft mechanism for a loader. Due to the variability of road terrain, the vehicle will travel and work on different and uneven ground for a long time, which will cause the supporting shaft to be frequently vibrated and impacted. These pressures will accelerate the fatigue damage of the supporting shaft. When the weight carried by the loader exceeds the bearing capacity of the supporting shaft, the supporting shaft will be subjected to excessive force, thereby causing it to deform, affecting the stability of the supporting shaft and causing damage to the supporting shaft.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a loader wheel side support shaft mechanism, comprising a support shaft body, a reinforcement shell, an inner support structure and a connecting flange, a primary connecting ring is welded on the right side of the support shaft body, a secondary connecting ring is welded on the right side of the primary connecting ring, a tertiary connecting ring is welded on the right side of the secondary connecting ring, the reinforcement shell is arranged on the inner surface of the support shaft body, a primary reinforcement ring is arranged on the inner surface of the primary connecting ring, a secondary reinforcement ring is arranged on the inner surface of the secondary connecting ring, a tertiary reinforcement ring is arranged on the inner surface of the tertiary connecting ring, the inner support structure is arranged on the inner surface of the reinforcement shell, a steel layer is arranged on the inner surface of the inner support structure, the connecting flange is arranged on the outer surface of the tertiary connecting ring, an axial cavity is opened in the inner cavity of the inner support structure, a first axial hole is arranged on the left side of the axial cavity, and a second axial hole is arranged on the right side of the axial cavity.

[0008] Furthermore, the inner support structure sequentially penetrates the primary connection ring, the secondary connection ring and the tertiary connection ring, and the inner surface of the reinforcement shell and the outer surface of the inner support structure abut against each other.

[0009] Furthermore, the surface of the connecting flange is provided with connecting holes, and the connecting holes are arranged in a plurality of groups, and the connecting holes in the plurality of groups are arranged in a circular manner with equal spacing.

[0010] Furthermore, the positions of the primary connecting ring, the secondary connecting ring and the tertiary connecting ring are arranged in order from small to large.

[0011] Furthermore, the inner surfaces of the primary reinforcement ring, the secondary reinforcement ring and the tertiary reinforcement ring are respectively in contact with the outer surface of the inner support structure, and the reinforcement shell, the primary reinforcement ring, the secondary reinforcement ring and the tertiary reinforcement ring are all made of stainless steel.

[0012] Furthermore, the inner cavity of the steel sandwich layer is filled with alloy, and the first axial hole, the second axial hole and the axial cavity have the same aperture size.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the inner support structure can provide additional support when the support shaft body is subjected to external forces, effectively increase the strength and stability of the entire structure, reduce the stress concentration on the support shaft, and prevent the support shaft from deforming when subjected to force. In addition, by providing a reinforcement shell and a reinforcement ring at the key position of the wheel side support shaft, the strength and rigidity of the support shaft can be effectively increased, and the bearing capacity can be improved. The specific contents are as follows:

[0014] A supporting shaft body, a reinforcing shell, a primary connecting ring, a secondary connecting ring, a tertiary connecting ring, a primary reinforcing ring, a secondary reinforcing ring and a tertiary reinforcing ring are provided. The supporting shaft body is provided with additional support and protection by using the reinforcing shell as an external structure, which can reduce the deformation and distortion of the supporting shaft under the action of external force, thereby improving its anti-deformation ability. The primary reinforcing ring, the secondary reinforcing ring and the tertiary reinforcing ring help disperse the external force on the primary connecting ring, the secondary connecting ring and the tertiary connecting ring, avoid the possibility of stress concentration, and reduce the overall stress concentration of the supporting shaft by evenly distributing and transmitting the external load, thereby reducing the risk of deformation and damage.

[0015] An internal support structure, a steel layer and an axial cavity are provided. The internal support structure and the internal steel layer pressure-resistant structure can make the entire structure more stable and strong, and reduce the possibility of deformation and twisting. When the outer layer of the supporting shaft body is deformed, the internal support structure can maintain the stability of the overall structure and the axial cavity, and the supporting shaft can be prevented from being deformed and damaged when it is subjected to excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front cross-section structure of a wheel side support shaft mechanism of a loader according to the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of a wheel side support shaft mechanism of a loader according to the utility model;

[0018] Figure 3 It is a right side structural schematic diagram of a wheel side support shaft mechanism of a loader according to the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the left side structure of a wheel side supporting shaft mechanism of a loader.

[0020] In the figure: 1. supporting shaft body; 2. primary connecting ring; 3. secondary connecting ring; 4. tertiary connecting ring; 5. reinforcing shell; 6. inner supporting structure; 7. sandwich steel layer; 8. primary reinforcing ring; 9. connecting flange; 10. connecting hole; 11. first shaft hole; 12. second shaft hole; 13. shaft cavity; 14. secondary reinforcing ring; 15. tertiary reinforcing ring. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figures 1 to 4 As shown, a wheel side support shaft mechanism of a loader includes a support shaft body 1, a reinforcement shell 5, an inner support structure 6 and a connecting flange 9. A primary connecting ring 2 is welded on the right side of the support shaft body 1. The support shaft body 1 transmits torque and bears load, provides structural support, and ensures the normal operation of the mechanical equipment. A secondary connecting ring 3 is welded on the right side of the primary connecting ring 2. A tertiary connecting ring 4 is welded on the right side of the secondary connecting ring 3. The connecting flange 9 is arranged on the outer surface of the tertiary connecting ring 4. A connecting hole 10 is opened on the surface of the connecting flange 9. The connecting holes 10 are arranged in a plurality of groups. The plurality of groups of connecting holes 10 are arranged in a circular equidistant manner. The connecting flange 9 is connected to the carrier through the plurality of connecting holes 10 to provide support and connection interfaces. The positions of the primary connecting ring 2, the secondary connecting ring 3 and the tertiary connecting ring 4 are arranged in order from small to large. The primary connecting ring 2, the secondary connecting ring 3 and the tertiary connecting ring 4 all play the role of connecting and transmitting force. Through interactive welding, the connecting parts are reinforced to reduce deformation and stress concentration at the connection.

[0023] The reinforcement shell 5 is arranged on the inner surface of the supporting shaft body 1, and the inner surface of the reinforcement shell 5 abuts against the outer surface of the inner support structure 6. The reinforcement shell 5 strengthens the inner shell of the supporting shaft body 1, and serves as a buffer layer of the inner support structure 6. By abutting against the inner support structure 6, the stability and bearing capacity of the overall structure are enhanced. The inner surface of the primary connecting ring 2 is provided with a primary reinforcement ring 8, the inner surface of the secondary connecting ring 3 is provided with a secondary reinforcement ring 14, and the inner surface of the tertiary connecting ring 4 is provided with a tertiary reinforcement ring 15. The primary reinforcement ring 8, the secondary reinforcement ring 14 and the tertiary reinforcement ring 15 are respectively provided The inner surfaces of the primary connecting ring 2, the secondary connecting ring 3 and the tertiary connecting ring 4 are used to enhance the strength and stability of the connecting rings and reduce deformation and wear. The inner surfaces of the primary reinforcing ring 8, the secondary reinforcing ring 14 and the tertiary reinforcing ring 15 are respectively abutted against the outer surface of the inner support structure 6, and the reinforcing shell 5, the primary reinforcing ring 8, the secondary reinforcing ring 14 and the tertiary reinforcing ring 15 are all made of stainless steel. The reinforcing rings abut against the outer surface of the inner support structure 6 to form a stable connection with the entire inner support structure 6, and the use of stainless steel improves corrosion resistance and structural strength;

[0024] The inner support structure 6 is arranged on the inner surface of the reinforced shell 5. The inner support structure 6 enhances the bearing capacity and stability of the supporting shaft body 1. Through the support and connection of the internal structure, the force is transmitted and the structural stability is maintained. The inner surface of the inner support structure 6 is provided with a steel layer 7. The inner cavity of the steel layer 7 is filled with alloy. The steel layer 7 is filled with alloy material, which increases the strength and rigidity of the inner support structure 6 and improves the overall wear resistance and bearing capacity. The inner cavity of the inner support structure 6 is provided with an axial cavity 13. A first axial hole 11 is provided on the left side of the axial cavity 13, and a second axial hole 12 is provided on the right side of the axial cavity 13. The inner support structure 6 passes through the primary connecting ring 2, the secondary connecting ring 3 and the tertiary connecting ring 4 in sequence. The aperture sizes of the first axial hole 11, the second axial hole 12 and the axial cavity 13 are equal. Through the cooperation of the first axial hole 11, the second axial hole 12 and the axial cavity 13, the drive axle housing and other parts are firmly fixed and connected to each other.

[0025] In summary, if Figures 1 to 4 As shown, the wheel side support shaft mechanism of the loader, the support shaft body 1 bears the external load and transmits it to other parts, the connecting flange 9 connects the carrier and the drive axle housing and other connecting parts through a plurality of connecting holes 10, the reinforcing shell 5 supports and strengthens the interior of the support shaft body 1 to bear the external load, the primary connecting ring 2, the secondary connecting ring 3 and the tertiary connecting ring 4 are welded by interaction, so as to reinforce the connection part, the primary reinforcing ring 8, the secondary reinforcing ring 14 and the tertiary reinforcing ring 15 are respectively arranged on the inner surfaces of the primary connecting ring 2, the secondary connecting ring 3 and the tertiary connecting ring 4, so as to enhance the strength of the connecting ring and the external load, and abut against the outer surface of the inner support structure 6, so as to form a stable connection;

[0026] When the outer layer of the supporting shaft body 1 is deformed, the stability of the overall structure and the shaft cavity 13 can be maintained through the internal support structure 6. The structural deformation and wear can be reduced through the reinforcement of the alloy steel layer 7, and secondary deformation protection can be provided to avoid deformation and damage caused by excessive pressure on the supporting shaft. The supporting shaft structure is coordinated with the first shaft hole 11, the second shaft hole 12 and the shaft cavity 13, so as to achieve firm fixation and mutual connection with parts such as the drive axle housing.

Claims

1. A wheel support shaft mechanism for a loader, comprising a support shaft body (1), a reinforcement shell (5), an inner support structure (6) and a connecting flange (9), characterized in that: A primary connecting ring (2) is welded to the right side of the supporting shaft body (1), a secondary connecting ring (3) is welded to the right side of the primary connecting ring (2), a tertiary connecting ring (4) is welded to the right side of the secondary connecting ring (3), the reinforcing shell (5) is arranged on the inner surface of the supporting shaft body (1), a primary reinforcing ring (8) is arranged on the inner surface of the primary connecting ring (2), a secondary reinforcing ring (14) is arranged on the inner surface of the secondary connecting ring (3), and a tertiary reinforcing ring (15) is arranged on the inner surface of the tertiary connecting ring (4), the inner supporting structure (6) is arranged on the inner surface of the reinforcing shell (5), a steel layer (7) is arranged on the inner surface of the internal supporting structure (6), the connecting flange (9) is arranged on the outer surface of the tertiary connecting ring (4), an inner cavity of the internal supporting structure (6) is provided with an axial cavity (13), a first axial hole (11) is arranged on the left side of the axial cavity (13), and a second axial hole (12) is arranged on the right side of the axial cavity (13).

2. A wheel support shaft mechanism for a loader according to claim 1, characterized in that: The inner support structure (6) sequentially penetrates the primary connection ring (2), the secondary connection ring (3) and the tertiary connection ring (4), and the inner surface of the reinforcement shell (5) and the outer surface of the inner support structure (6) are in contact with each other.

3. The wheel support shaft mechanism for a loader according to claim 1, characterized in that: The surface of the connecting flange (9) is provided with connecting holes (10), and the connecting holes (10) are arranged in a plurality of groups, and the plurality of groups of connecting holes (10) are arranged in a circular manner with equal spacing.

4. The wheel support shaft mechanism for a loader according to claim 1, characterized in that: The positions of the primary connecting ring (2), the secondary connecting ring (3) and the tertiary connecting ring (4) are arranged in order from small to large.

5. The wheel support shaft mechanism for a loader according to claim 1, characterized in that: The inner surfaces of the primary reinforcement ring (8), the secondary reinforcement ring (14) and the tertiary reinforcement ring (15) respectively abut against the outer surface of the inner support structure (6), and the reinforcement shell (5), the primary reinforcement ring (8), the secondary reinforcement ring (14) and the tertiary reinforcement ring (15) are all made of stainless steel.

6. The wheel support shaft mechanism for a loader according to claim 1, characterized in that: The inner cavity of the steel sandwich layer (7) is filled with alloy, and the first axial hole (11), the second axial hole (12) and the axial cavity (13) have the same aperture size.

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