Wheel mounting mechanism for an off-road stacker truck

Abstract

The utility model relates to a kind of off-road stacking vehicle's wheel mounting mechanism.It solves the technical problems that the existing conventional fixing mode is prone to cause wheel shaft to rotate or axial movement, etc.It includes wheel frame, the one end of wheel frame has first wheel mounting plate and second wheel mounting plate, first wheel mounting plate and second wheel mounting plate are rotatably provided with wheel body between, wheel body center is rotatably provided with wheel shaft body extending to the outside of wheel body through bearing body, one end of wheel shaft body is arranged in first mounting hole on first wheel mounting plate and is rotatably connected with first mounting hole by anti-rotation rotating mounting structure, the other end of wheel shaft body is arranged in second mounting hole on second wheel mounting plate and is rotatably connected with second mounting hole by rotating locking mounting structure.The advantage is that: by the cooperation of the mounting hole and the shaft sleeve limiting portion on both sides, a firm clamping structure is formed, effectively preventing the axial movement of the wheel shaft assembly, ensuring that the wheel remains stable under impact and vibration.

Description

Technical Field

[0001] This utility model belongs to the field of stacker vehicle gear installation technology, specifically relating to a wheel installation mechanism for an off-road stacker vehicle. Background Technology

[0002] As industrial vehicles, off-road stacker trucks are commonly used for transporting and stacking goods. Their working environments are often complex, placing high demands on the stability, reliability, and adaptability of wheel installation. On rough terrain, wheels are subjected to enormous impact forces and torques from different directions. Traditional axle and nut fixing methods can easily cause the axle to rotate or move axially, compromising installation accuracy, accelerating the wear of bearings and axle holes, and even causing nuts to loosen, posing safety hazards. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing a wheel mounting mechanism for an off-road stacker vehicle.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a wheel mounting mechanism for an off-road stacker vehicle, comprising a wheel frame, one end of which has a first wheel mounting plate and a second wheel mounting plate arranged parallel to each other, a wheel body rotatably disposed between the first wheel mounting plate and the second wheel mounting plate, an axle extending to the outside of the wheel body rotatably passing through the center of the wheel body via a bearing body, one end of the axle passing through a first mounting hole on the first wheel mounting plate and rotatably connected to the first mounting hole via an anti-rotation mounting structure, and the other end of the axle passing through a second mounting hole on the second wheel mounting plate and rotatably connected to the second mounting hole via a rotation locking mounting structure.

[0005] In the aforementioned wheel mounting mechanism of an off-road stacker truck, the first mounting hole is a stepped hole, and the diameter of the first mounting hole at the end furthest from the second mounting hole is larger than the diameter at the end of the first mounting hole closest to the second mounting hole. Designing the first mounting hole as a stepped hole provides an axial positioning surface for the subsequent installation of the anti-rotation mounting structure, which is fundamental to achieving stable installation.

[0006] In the aforementioned wheel mounting mechanism of an off-road stacker vehicle, the anti-rotation mounting structure includes a first wheel axle sleeve fitted onto one end of the wheel axle body. The first wheel axle sleeve passes through a first mounting hole, and one end of the first wheel axle sleeve has a first axle sleeve limiting part rotatably disposed on the inner side of the first mounting hole located away from the second mounting hole. The other end of the first wheel axle sleeve passes through the center of the wheel body and abuts against one end of the bearing body. A circumferential limiting component is provided between the first wheel axle sleeve and the first axle sleeve limiting part.

[0007] In the aforementioned wheel mounting mechanism of an off-road stacker truck, the first axle sleeve limiting part is integrally formed on one end of the first wheel axle sleeve, and the diameter of the first axle sleeve limiting part is larger than the diameter of the first wheel axle sleeve and the diameter of the first mounting hole near the second mounting hole. Using an independent first wheel axle sleeve concentrates rotational friction between the axle sleeve and the mounting hole, protecting the axle body and wheel frame. After wear, only the axle sleeve needs to be replaced, resulting in low maintenance costs. Simultaneously, the first axle sleeve limiting part cooperates with the stepped hole, effectively preventing axial movement of the entire axle assembly to that side. One end of the first wheel axle sleeve abuts against the bearing, and the other end is secured to the mounting plate by the limiting part, forming a stable force transmission chain.

[0008] In the wheel mounting mechanism of the aforementioned off-road stacker vehicle, the circumferential limiting component includes a limiting groove disposed on the circumferential inner side of the first bushing limiting part. The limiting groove has a non-circular structure, and one end of the wheel axle has a wheel axle limiting part disposed in the limiting groove and matching the shape of the limiting groove.

[0009] In the aforementioned wheel mounting mechanism of an off-road stacker vehicle, the diameter of the axle limiting part is larger than the diameter of the first axle sleeve, and the axle limiting part is integrally formed at one end of the axle body. Through the non-circular limiting groove and the matching axle limiting part, torque is directly transmitted from the wheel body to the axle body, ensuring the effectiveness of driving or braking. Simultaneously, the integral forming of the axle limiting part and the axle body avoids the loosening or stress concentration problems that may occur when using connecting parts such as keys and pins, resulting in good connection rigidity and high reliability.

[0010] In the aforementioned wheel mounting mechanism of an off-road stacker truck, the second mounting hole is a stepped hole, and the diameter of the second mounting hole at the end furthest from the first mounting hole is larger than the diameter at the end closest to the first mounting hole. Designing the second mounting hole as a stepped hole provides an axial positioning surface for the subsequent installation of the rotational locking mounting structure, which is fundamental to achieving stable installation.

[0011] In the aforementioned wheel mounting mechanism of an off-road stacker vehicle, the rotating locking mounting structure includes a second wheel axle sleeve sleeved on the wheel axle body away from the first mounting hole. The second wheel axle sleeve passes through the second mounting hole and has a second axle sleeve limiting part rotatably disposed inside the end of the second mounting hole located away from the first mounting hole. The other end of the second wheel axle sleeve passes through the center of the wheel body and abuts against the end of the bearing body away from the first mounting hole. A locking and fixing component is provided between the second wheel axle sleeve and the wheel axle body.

[0012] In the aforementioned wheel mounting mechanism of an off-road stacker vehicle, the second axle sleeve limiting part is integrally formed on one end of the second wheel axle sleeve. The diameter of the second axle sleeve limiting part is larger than the diameter of the second wheel axle sleeve and the diameter of the second mounting hole near the first mounting hole. The locking and fixing assembly includes a fastening groove disposed on the inner circumferential side of the second axle sleeve limiting part. A wheel axle cover is provided inside the fastening groove, and a fastening screw connected to the wheel axle body is provided on the inner circumferential side of the wheel axle cover. The other side adopts a similar stepped hole and axle sleeve design, but in conjunction with the locking and fixing assembly, by tightening the fastening screw, the entire wheel axle, bearing, and axle sleeve assembly is pressed between the two mounting plates, eliminating axial clearance and pre-tightening the bearing. Locking is performed from one side, making wheel assembly and disassembly very convenient without the need for simultaneous operation from both sides. At the same time, the wheel axle cover can also prevent dust and impurities from entering the locking mechanism, while making the appearance cleaner.

[0013] In the aforementioned wheel mounting mechanism of an off-road stacker vehicle, a fixing plate is provided at one end of the wheel frame near the wheel body. One end of the first wheel mounting plate and one end of the second wheel mounting plate are respectively connected to both sides of the fixing plate, and the fixing plate, the first wheel mounting plate, and the second wheel mounting plate form a U-shaped structure. The U-shaped structure forms a robust support that can effectively withstand forces and torques from all directions, especially the impacts and torques under off-road conditions, providing a stable and symmetrical support point for the wheel and ensuring the straightness and stability of the wheel's operation.

[0014] Compared with existing technologies, the advantages of this utility model are: 1. The device, through the cooperation of the mounting holes on both sides and the bushing limiting part, forms a robust clamping structure, which effectively prevents the axial movement of the wheel and axle assembly and ensures that the wheel remains stable under impact and vibration.

[0015] 2. The device uses a non-circular circumferential limiting component to provide a rigid torque transmission path, preventing relative rotation between the wheel axle and the mounting plate, and ensuring effective transmission of driving and braking forces without delay or slippage.

[0016] 3. The installation and removal of the wheel body of this device can be completed by operating a single fastening screw on the locking side. By tightening the fastening screw, the axial preload on the bearing body can be precisely adjusted, improving the wheel rotation accuracy and extending the bearing service life. At the same time, this design makes wheel replacement or maintenance very simple and quick, reducing equipment downtime.

[0017] 4. The wheel axle limiting part of the device is integrally formed with the wheel axle body, and the bushing limiting part is integrally formed with the wheel axle bushing. This avoids the loosening, wear and stress concentration problems that may occur when using key, pin and other connecting parts, resulting in higher structural strength and longer service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is an exploded view of the structure of this utility model.

[0020] Figure 3 This is a structural cross-sectional view of the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the second wheel bushing in this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the first wheel bushing in this utility model.

[0023] Figure 6 This is a schematic diagram of the wheel mounting plate in this utility model.

[0024] In the diagram: 1. Wheel frame; 11. First wheel mounting plate; 12. Second wheel mounting plate; 13. First mounting hole; 14. Second mounting hole; 15. Fixing plate; 2. Wheel body; 21. Bearing body; 22. Axle body; 3. Anti-rotation mounting structure; 3. First axle sleeve; 31. First axle sleeve limiting part; 32. Rotation locking mounting structure; 4. Second axle sleeve; 41. Second axle sleeve limiting part; 42. Circumferential limiting assembly; 5. Limiting groove; 51. Axle limiting part; 52. Locking and fixing assembly; 6. Fastening groove; 61. Axle cover; 62. Fastening screw; 63. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1-6 As shown, a wheel mounting mechanism for an off-road stacker truck includes a wheel frame 1. One end of the wheel frame 1 has a first wheel mounting plate 11 and a second wheel mounting plate 12 arranged parallel to each other. A wheel body 2 is rotatably mounted between the first wheel mounting plate 11 and the second wheel mounting plate 12. A wheel axle 22 extending to the outside of the wheel body 2 is rotatably passed through the center of the wheel body 2 via a bearing body 21. One end of the wheel axle 22 passes through a first mounting hole 13 on the first wheel mounting plate 11 and is rotatably connected to the first mounting hole 13 via an anti-rotation mounting structure 3. The other end of the wheel axle 22 passes through a second mounting hole 14 on the second wheel mounting plate 12 and is rotatably connected to the second mounting hole 14 via a rotation locking mounting structure 4.

[0027] like Figure 6As shown, the first mounting hole 13 is a stepped hole, and the diameter of the end of the first mounting hole 13 furthest from the second mounting hole 14 is larger than the diameter of the end of the first mounting hole 13 closest to the second mounting hole 14. Designing the first mounting hole 13 as a stepped hole provides an axial positioning surface for the subsequent installation of the anti-rotation mounting structure 3, which is the basis for achieving stable installation.

[0028] Combination Figure 2 , Figure 3 and Figure 5 As shown, the anti-rotation mounting structure 3 includes a first wheel bushing 31 sleeved on one end of the wheel axle body 22. The first wheel bushing 31 passes through the first mounting hole 13 and one end of the first wheel bushing 31 has a first bushing limiting part 32 rotatably disposed inside the end of the first mounting hole 13 located away from the second mounting hole 14. The other end of the first wheel bushing 31 passes through the center of the wheel body 2 and abuts against one end of the bearing body 21. A circumferential limiting component 5 is provided between the first wheel bushing 31 and the first bushing limiting part 32.

[0029] The first bushing limiting part 32 is integrally formed on one end of the first wheel bushing 31, and the diameter of the first bushing limiting part 32 is larger than the diameter of the first wheel bushing 31 and the diameter of the first mounting hole 13 near the second mounting hole 14. By using an independent first wheel bushing 31, rotational friction is concentrated between the bushing and the mounting hole, protecting the wheel axle body 22 and the wheel frame 1 body. After wear, only the bushing needs to be replaced, resulting in low maintenance costs. At the same time, the first bushing limiting part 32 cooperates with the stepped hole to effectively prevent the entire wheel axle assembly from axially moving to that side. One end of the first wheel bushing 31 abuts against the bearing, and the other end is locked onto the mounting plate by the limiting part, forming a stable force transmission chain.

[0030] Specifically, the circumferential limiting component 5 includes a limiting groove 51 disposed on the circumferential inner side of the first bushing limiting part 32. The limiting groove 51 has a non-circular structure and one end of the wheel axle body 22 has a wheel axle limiting part 52 disposed in the limiting groove 51 and matching the shape of the limiting groove 51.

[0031] Meanwhile, the diameter of the axle limiting part 52 is larger than the diameter of the first axle sleeve 31, and the axle limiting part 52 is integrally formed on one end of the axle body 22. Through the non-circular limiting groove 51 and the matching axle limiting part 52, torque is directly transmitted from the wheel body 2 to the axle body 22, ensuring the effectiveness of driving or braking. At the same time, the integral forming of the axle limiting part 52 and the axle body 22 avoids the loosening or stress concentration problems that may occur when using connecting parts such as keys and pins, resulting in good connection rigidity and high reliability.

[0032] like Figure 6As shown, the second mounting hole 14 is a stepped hole, and the diameter of the end of the second mounting hole 14 furthest from the first mounting hole 13 is larger than the diameter of the end of the second mounting hole 14 closest to the first mounting hole 13. Designing the second mounting hole 14 as a stepped hole provides an axial positioning surface for the subsequent installation of the rotational locking mounting structure 4, which is the basis for achieving stable installation.

[0033] Combination Figures 2-4 As shown, the rotating locking mounting structure 4 includes a second wheel bushing 41 sleeved on the wheel axle body 22 away from the first mounting hole 13. The second wheel bushing 41 passes through the second mounting hole 14 and one end of the second wheel bushing 41 has a second bushing limiting part 42 rotatably disposed inside the end of the second mounting hole 14 away from the first mounting hole 13. The other end of the second wheel bushing 41 passes through the center of the wheel body 2 and abuts against the end of the bearing body 21 away from the first mounting hole 13. A locking and fixing assembly 6 is provided between the second wheel bushing 41 and the wheel axle body 22.

[0034] The second bushing limiting part 42 is integrally formed on one end of the second wheel bushing 41. The diameter of the second bushing limiting part 42 is larger than the diameter of the second wheel bushing 41 and the diameter of the second mounting hole 14 near the first mounting hole 13. The locking and fixing assembly 6 includes a fastening groove 61 disposed on the inner side of the second bushing limiting part 42. A wheel axle cover 62 is provided inside the fastening groove 61, and a fastening screw 63 connected to the wheel axle body 22 is disposed on the inner side of the wheel axle cover 62. The other side adopts a similar stepped hole and bushing design, but in conjunction with the locking and fixing assembly 6, by tightening the fastening screw 63, the entire wheel axle, bearing and bushing assembly are pressed between the two mounting plates, eliminating axial clearance and pre-tightening the bearing. Locking is performed from one side, making the assembly and disassembly of the wheel very convenient, without the need for simultaneous operation from both sides. At the same time, the wheel axle cover 62 can also prevent dust and impurities from entering the locking mechanism, and make the appearance cleaner.

[0035] like Figure 6 As shown, a fixing plate 15 is provided at one end of the wheel frame 1 near the wheel body 2. One end of the first wheel mounting plate 11 and one end of the second wheel mounting plate 12 are respectively connected to both sides of the fixing plate 15, and the fixing plate 15, the first wheel mounting plate 11 and the second wheel mounting plate 12 form a U-shaped structure. The U-shaped structure forms a sturdy support that can effectively withstand forces and torques from all directions, especially the impacts and torques under off-road conditions, providing a stable and symmetrical support point for the wheel and ensuring the straightness and stability of the wheel's operation.

[0036] The principle of this embodiment is as follows: The first wheel bushing 31 is first fitted onto the wheel axle body 22, and the wheel axle limiting part 52 is set in the limiting groove 51. Then, the end of the wheel axle body 22 away from the first wheel bushing 31 passes through the first mounting hole 13 and the bearing body 21 in sequence to the second mounting hole 14. The first bearing limiting part 32 of the first wheel bushing 31 is set in the first mounting hole 13. Subsequently, the second wheel bushing 41 passes through the second mounting hole 14 to the outer side of the end of the wheel axle body 22 away from the first wheel bushing 31. The second bushing limiting part 42 is set in the second mounting hole 14. The wheel axle cover 62 is set in the fastening groove 61. Finally, the fastening screw 63 passes through the wheel axle cover 62 and is connected to the wheel axle body 22.

[0037] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0038] Although this document frequently uses terms such as wheel frame 1, first wheel mounting plate 11, second wheel mounting plate 12, first mounting hole 13, second mounting hole 14, fixing plate 15, wheel body 2, bearing body 21, axle body 22, anti-rotation mounting structure 3, first axle sleeve 31, first axle sleeve limiting part 32, rotation locking mounting structure 4, second axle sleeve 41, second axle sleeve limiting part 42, circumferential limiting assembly 5, limiting groove 51, axle limiting part 52, locking and fixing assembly 6, fastening groove 61, axle cover 62, and fastening screw 63, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A wheel mounting mechanism for an off-road stacker truck, comprising a wheel frame (1), wherein one end of the wheel frame (1) has a first wheel mounting plate (11) and a second wheel mounting plate (12) arranged parallel to each other, and a wheel body (2) is rotatably disposed between the first wheel mounting plate (11) and the second wheel mounting plate (12), characterized in that, The wheel body (2) is rotatably connected to the wheel axle (22) extending to the outside of the wheel body (2) through the bearing body (21). One end of the wheel axle (22) is inserted into the first mounting hole (13) on the first wheel mounting plate (11) and is rotatably connected to the first mounting hole (13) through the anti-rotation mounting structure (3). The other end of the wheel axle (22) is inserted into the second mounting hole (14) on the second wheel mounting plate (12) and is rotatably connected to the second mounting hole (14) through the rotation locking mounting structure (4).

2. The wheel mounting mechanism for an off-road stacker truck according to claim 1, characterized in that, The first mounting hole (13) is a stepped hole and the diameter of the first mounting hole (13) located away from the second mounting hole (14) is greater than the diameter of the first mounting hole (13) located near the second mounting hole (14).

3. The wheel mounting mechanism for an off-road stacker truck according to claim 1, characterized in that, The anti-rotation mounting structure (3) includes a first wheel bushing (31) sleeved on one end of the wheel axle body (22). The first wheel bushing (31) passes through the first mounting hole (13) and one end of the first wheel bushing (31) has a first bushing limiting part (32) rotatably disposed on the inner side of the end of the first mounting hole (13) away from the second mounting hole (14). The other end of the first wheel bushing (31) passes through the center of the wheel body (2) and abuts against one end of the bearing body (21). A circumferential limiting component (5) is provided between the first wheel bushing (31) and the first bushing limiting part (32).

4. The wheel mounting mechanism for an off-road stacker truck according to claim 3, characterized in that, The first bushing limiting part (32) is integrally formed on one end of the first wheel bushing (31), and the diameter of the first bushing limiting part (32) is greater than the diameter of the first wheel bushing (31) and the diameter of the first mounting hole (13) near the end of the second mounting hole (14).

5. The wheel mounting mechanism for an off-road stacker truck according to claim 3, characterized in that, The circumferential limiting component (5) includes a limiting groove (51) disposed on the inner side of the first bushing limiting part (32). The limiting groove (51) has a non-circular structure and one end of the wheel axle body (22) has a wheel axle limiting part (52) disposed in the limiting groove (51) and matching the shape of the limiting groove (51).

6. The wheel mounting mechanism for an off-road stacker truck according to claim 5, characterized in that, The diameter of the wheel axle limiting part (52) is larger than the diameter of the first wheel axle sleeve (31), and the wheel axle limiting part (52) is integrally formed on one end of the wheel axle body (22).

7. The wheel mounting mechanism for an off-road stacker truck according to claim 1, characterized in that, The second mounting hole (14) is a stepped hole and the diameter of the second mounting hole (14) located at the end away from the first mounting hole (13) is greater than the diameter of the end of the second mounting hole (14) close to the first mounting hole (13).

8. The wheel mounting mechanism for an off-road stacker truck according to claim 1, characterized in that, The rotating locking mounting structure (4) includes a second wheel bushing (41) sleeved on the wheel axle body (22) away from the first mounting hole (13). The second wheel bushing (41) passes through the second mounting hole (14) and one end of the second wheel bushing (41) has a second bushing limiting part (42) rotatably disposed on the inner side of the end of the second mounting hole (14) away from the first mounting hole (13). The other end of the second wheel bushing (41) passes through the center of the wheel body (2) and abuts against the end of the bearing body (21) away from the first mounting hole (13). A locking and fixing assembly (6) is provided between the second wheel bushing (41) and the wheel axle body (22).

9. The wheel mounting mechanism for an off-road stacker truck according to claim 8, characterized in that, The second bushing limiting part (42) is integrally formed on one end of the second wheel bushing (41). The diameter of the second bushing limiting part (42) is larger than the diameter of the second wheel bushing (41) and the diameter of the second mounting hole (14) near the end of the first mounting hole (13). The locking and fixing assembly (6) includes a fastening groove (61) provided on the inner side of the second bushing limiting part (42). The inner side of the fastening groove (61) is provided with a wheel axle cover (62), and the inner side of the wheel axle cover (62) is provided with a fastening screw (63) connected to the wheel axle body (22).

10. The wheel mounting mechanism for an off-road stacker truck according to claim 1, characterized in that, The wheel frame (1) is provided with a fixing plate (15) near the wheel body (2). One end of the first wheel mounting plate (11) and one end of the second wheel mounting plate (12) are respectively connected to the two sides of the fixing plate (15), and the fixing plate (15), the first wheel mounting plate (11) and the second wheel mounting plate (12) are in a U-shaped structure.

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