Wheel axle assembly

Abstract

The utility model discloses a wheel shaft assembly which comprises a long shaft body, a cavity is formed in the long shaft body, an extension bearing is movably connected in the long shaft body, and a hub is fixedly connected to the outer end of the extension bearing. A first rolling bearing and a second rolling bearing are fixedly connected to the outer portion of the extension bearing, the first rolling bearing and the second rolling bearing are fixedly connected through a connecting ring, a clamping groove is formed in the extension bearing, a fixing ring is arranged on the extension bearing, and a spring and a telescopic rod are arranged in the fixing ring. A clamping ring is fixedly connected to the lower surface of the telescopic rod, and threaded holes are formed in the fixing ring and the long shaft body. By means of the device, through cooperation of the fixing ring, the first rolling bearing, the second rolling bearing, the clamping groove, the clamping ring and the fixing ring, extension and flexible adjustment of the bearing are achieved, the service life of the bearing is greatly prolonged, the bearing capacity of the bearing is greatly improved, and the replacement frequency and the maintenance cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel axle assemblies, in particular to a wheel axle assembly. Background Art

[0002] The wheel and axle assembly plays an important role in mechanical engineering, especially in various vehicles and mechanical equipment, carrying and transmitting power and load to tires or other components. The design of the wheel and axle assembly directly affects the performance, durability and maintenance cost of the equipment. Among them, the bearing is one of the core components of the wheel and axle assembly, and its service life and load-bearing capacity are particularly critical.

[0003] Existing wheel and axle assembly technologies mostly use bearings to operate within a fixed length of the shaft, but this method, when used, limits its improvement in load and life. For example, a Chinese patent discloses "a mining wheel and axle assembly" with an application number of "CN202020193348.8". It uses a wheel and axle assembly with bearing seats installed at both ends of the axle, and a suspension device is fixed on the front and rear side walls of each bearing seat. Through the bearing seats with double suspension devices integrated at both ends of the wheel and axle assembly, the vehicle has good vibration reduction performance and can run smoothly. At the same time, through the setting of the bearing seat on the wheel assembly, the wheel and axle assembly can be quickly installed and removed from the vehicle chassis, greatly improving the efficiency of vehicle maintenance, but it limits the size and load capacity of the bearing, and also limits the life of the bearing, because once the bearing is worn or fails, the entire bearing unit may need to be replaced, increasing maintenance and replacement costs. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a wheel axle assembly. Through the cooperation of a fixing ring, a first rolling bearing, a second rolling bearing, a slot, a snap ring, and a fixing ring, the hollow structure of the long axis body and the flexible installation of the extended bearing enable the bearing to be effectively extended and adjusted as needed, which can effectively improve the service life of the bearing, reduce the replacement frequency and maintenance cost, the first rolling bearing and the second rolling bearing are firmly fixed by a connecting ring, and have a certain elasticity to adapt to the length adjustment of the bearing, and at the same time, the multiple first rolling bearings and the second rolling bearings of the extended bearing share the load, which significantly improves the load-bearing capacity, the snap ring and the slot on the fixing ring fix the extended bearing to prevent movement, and ensure the stability and safety of the device. These optimizations work together to improve the reliability and durability of the wheel axle assembly, and optimize the performance and service life of the vehicle.

[0005] The utility model also provides a wheel axle assembly as described above, comprising: a long axis body, a cavity is provided inside the long axis body, an extension bearing is movably connected inside the long axis body, and a wheel hub is fixedly connected to the outer end of the extension bearing; a first rolling bearing and a second rolling bearing are fixedly connected to the outside of the extension bearing, and the first rolling bearing and the second rolling bearing are fixedly connected via a connecting ring, a clamping groove is provided on the extension bearing, a fixing ring is provided on the extension bearing, a spring and a telescopic rod are provided inside the fixing ring, a clamping ring is fixedly connected to the lower surface of the telescopic rod, and threaded holes are provided on the fixing ring and the long axis body. Through the above device, through the cooperation of the fixing ring, the first rolling bearing, the second rolling bearing, the clamping groove, the clamping ring, and the fixing ring, the extension bearing is extended and flexibly adjusted, which greatly improves the service life and load-bearing capacity of the bearing, and reduces the replacement frequency and maintenance cost.

[0006] According to the wheel axle assembly described in the utility model, the long axle body is a hollow structure, and the cavity runs through the entire long axle body. Through the above device, through the long axle body, the internal cavity passes through the entire axle body, providing structural support and space use for the axle.

[0007] According to the wheel axle assembly described in the utility model, the extension bearing is located inside the cavity of the long shaft body, the number of the extension bearings is two, and the extension bearings are located on both sides of the long shaft body. Through the above device, the extension bearings are used to support the extension part of the wheel axle, fix the wheel hub and support its rotational movement.

[0008] According to the wheel axle assembly described in the utility model, the outer diameter of the extended bearing is smaller than the inner diameter of the long shaft body, and the wheel hub is located outside the long shaft body. Through the above device, through the position of the wheel hub, it is fixedly connected to the outer end of the extended bearing to support the installation and rotation of the wheel.

[0009] According to the wheel axle assembly described in the utility model, the outer rings of the first rolling bearing and the second rolling bearing fit with the inner wall of the long shaft body, and the inner rings of the first rolling bearing and the second rolling bearing fit with the outer wall of the extension bearing. Through the above device, the outer rings of the first rolling bearing and the second rolling bearing fit with the inner wall of the long shaft body, and the inner rings fit with the outer wall of the extension bearing, ensuring that the rolling bearings work stably and with low friction during operation.

[0010] According to the wheel axle assembly described in the utility model, the number of the first rolling bearing and the second rolling bearing on one side is two, and the connecting ring is made of silicone rubber material. Through the above device, the connecting ring provides stable support and fixation.

[0011] According to the wheel axle assembly described in the utility model, the fixing ring is located at the end away from the wheel hub, the fixing ring is located at the inner end of the first rolling bearing and the second rolling bearing, a moving groove is provided inside the fixing ring, the clamping ring is slidably connected inside the moving groove, the spring and the telescopic rod are located at the inner top of the moving groove, and the clamping ring is interference fit with the clamping groove. Through the above device, the spring and the telescopic rod provide stable pressure and support during the adjustment process to ensure the safe operation of the fixing ring and the entire wheel axle assembly.

[0012] According to the wheel axle assembly described in the utility model, the threaded hole surrounds the long shaft body, and the threaded hole is internally threaded with a bolt. Through the above device, the threaded hole and the bolt ensure the stability and safety of the entire wheel axle assembly, and prevent loosening or falling off during operation.

[0013] Beneficial Effects

[0014] Compared with the prior art, the wheel axle assembly, through the cooperation of the fixing ring, the first rolling bearing, the second rolling bearing, the slot, the snap ring, and the fixing ring, the hollow structure of the long axis body and the flexible installation of the extended bearing, enables the bearing to be effectively extended and adjusted as needed, which can effectively improve the service life of the bearing, reduce the replacement frequency and maintenance cost, the first rolling bearing and the second rolling bearing are firmly fixed by the connecting ring, and have a certain elasticity to adapt to the length adjustment of the bearing, and at the same time, the multiple first rolling bearings and the second rolling bearings of the extended bearing share the load, which significantly improves the load-bearing capacity, the snap ring and the slot on the fixing ring fix the extended bearing to prevent movement, thereby ensuring the stability and safety of the device, and these optimizations work together to improve the reliability and durability of the wheel axle assembly, and optimize the performance and service life of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a front view of the wheel axle assembly of the utility model;

[0017] Figure 2 The utility model of the wheel axle assembly Figure 1 right side section view;

[0018] Figure 3 The utility model of the wheel axle assembly Figure 1 Transverse section view;

[0019] Figure 4 For the utility model axle assembly Figure 2 Enlarged view of point A in the middle;

[0020] Figure 5 For the utility model axle assembly Figure 3 Enlarged view of point B in the middle.

[0021] Legend:

[0022] 1. Long shaft body; 2. Cavity; 3. Extension bearing; 4. Wheel hub; 5. First rolling bearing; 6. Connecting ring; 7. Second rolling bearing; 8. Slot; 9. Fixed ring; 10. Moving slot; 11. Spring; 12. Telescopic rod; 13. Snap ring; 14. Threaded hole; 15. Bolt. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-5 The utility model embodiment provides a wheel axle assembly, which includes: a long axis body 1, the long axis body 1 is the main structural support of the entire wheel axle assembly, a cavity 2 is arranged inside the long axis body 1, the cavity 2 is used to install and support an extension bearing 3, the long axis body 1 is a hollow structure, the cavity 2 runs through the entire long axis body 1, an extension bearing 3 is movably connected inside the long axis body 1, and a wheel hub 4 is stably supported, the extension bearing 3 is located inside the cavity 2 of the long axis body 1, the number of the extension bearings 3 is two, the extension bearings 3 are located on both sides of the long axis body 1, the outer end of the extension bearing 3 is fixedly connected to the wheel hub 4, the wheel hub 4 transmits power and bears the wheel load to make the vehicle run smoothly, the outer diameter of the extension bearing 3 is smaller than the inner diameter of the long axis body 1, and the wheel hub 4 is located outside the long axis body 1.

[0025] The extended bearing 3 is externally fixedly connected with a first rolling bearing 5 and a second rolling bearing 7, which provide stable rotational support and axial load bearing capacity, the outer rings of the first rolling bearing 5 and the second rolling bearing 7 fit with the inner wall of the long shaft body 1, and the inner rings of the first rolling bearing 5 and the second rolling bearing 7 fit with the outer wall of the extended bearing 3, the first rolling bearing 5 and the second rolling bearing 7 are fixedly connected by a connecting ring 6, the connecting ring 6 is made of silicone rubber, and fixedly connects the first rolling bearing 5 and the second rolling bearing 7 to accommodate the length adjustment of the bearings, the number of the first rolling bearing 5 and the second rolling bearing 7 on one side is two, the connecting ring 6 is made of silicone rubber, a slot 8 is provided on the extended bearing 3, the slot 8 is used to adjust the position of the fixing ring 9 to ensure the stable installation of the fixing ring 9, and the extended bearing 3 is provided with The fixing ring 9 provides a length fine-tuning function to ensure the stability and safety of the bearing assembly. A spring 11 and a telescopic rod 12 are arranged inside the fixing ring 9. A snap ring 13 is fixedly connected to the lower surface of the telescopic rod 12. The fixing ring 9 is located at the end away from the wheel hub 4. The fixing ring 9 is located at the inner end of the first rolling bearing 5 and the second rolling bearing 7. A movable groove 10 is arranged inside the fixing ring 9. The snap ring 13 is slidably connected to the inside of the movable groove 10. The spring 11 and the telescopic rod 12 are located at the inner top of the movable groove 10. The snap ring 13 and the snap groove 8 are interference fit. Threaded holes 14 are arranged on the fixing ring 9 and the long axis body 1. The threaded holes 14 are surrounded by the long axis body 1. Bolts 15 are threadedly connected to the threaded holes 14. The threaded holes 14 and the bolts 15 are used to fix and connect the various components of the wheel axle assembly to ensure the firmness and safety of the overall structure.

[0026] Working principle: When in use, the first rolling bearing 5 and the second rolling bearing 7 in the extended bearing 3 are fixedly connected by the connecting ring 6 to ensure stable operation during high-speed rotation, and the outer ring fits with the inner wall of the long shaft body 1, and the inner ring fits with the outer wall of the extended bearing 3 to achieve smooth rotation of the wheel axle and withstand radial and axial loads, thereby increasing the service life of the bearing, reducing the replacement frequency and maintenance costs, and the spring 11 in the fixed ring 9 and the telescopic rod 12 are interference fit with the retaining ring 13 and the slot 8, and the bolt 15 is connected to the threaded hole 14 to fix the extended bearing 3 to prevent movement in the studio, thereby ensuring the safety and stability of the wheel axle assembly under different working conditions.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A wheel axle assembly, characterized in that: include: A long shaft body (1), wherein a cavity (2) is arranged inside the long shaft body (1), an extended bearing (3) is movably connected inside the long shaft body (1), and a wheel hub (4) is fixedly connected to the outer end of the extended bearing (3); The extension bearing (3) is fixedly connected to a first rolling bearing (5) and a second rolling bearing (7) on the outside, the first rolling bearing (5) and the second rolling bearing (7) are fixedly connected via a connecting ring (6), a retaining groove (8) is provided on the extension bearing (3), a fixing ring (9) is provided on the extension bearing (3), a spring (11) and a telescopic rod (12) are provided inside the fixing ring (9), a retaining ring (13) is fixedly connected to the lower surface of the telescopic rod (12), and threaded holes (14) are provided on the fixing ring (9) and the long shaft body (1).

2. The wheel axle assembly according to claim 1, characterized in that: The long axis body (1) is a hollow structure, and the cavity (2) runs through the entire long axis body (1).

3. The wheel axle assembly according to claim 1, characterized in that: The extended bearing (3) is located inside the cavity (2) of the long shaft body (1), the number of the extended bearings (3) is two, and the extended bearings (3) are located on both sides of the long shaft body (1).

4. The wheel axle assembly according to claim 1, characterized in that: The outer diameter of the extended bearing (3) is smaller than the inner diameter of the long shaft body (1), and the hub (4) is located outside the long shaft body (1).

5. The wheel axle assembly according to claim 1, characterized in that: The outer rings of the first rolling bearing (5) and the second rolling bearing (7) are in contact with the inner wall of the long shaft body (1), and the inner rings of the first rolling bearing (5) and the second rolling bearing (7) are in contact with the outer wall of the extension bearing (3).

6. The wheel axle assembly according to claim 1, characterized in that: The number of the first rolling bearing (5) and the second rolling bearing (7) on one side is two, and the connecting ring (6) is made of silicone rubber material.

7. The wheel axle assembly according to claim 1, characterized in that: The fixing ring (9) is located at an end away from the wheel hub (4), the fixing ring (9) is located at the inner ends of the first rolling bearing (5) and the second rolling bearing (7), a movable groove (10) is arranged inside the fixing ring (9), the snap ring (13) is slidably connected inside the movable groove (10), the spring (11) and the telescopic rod (12) are located at the inner top of the movable groove (10), and the snap ring (13) and the snap groove (8) are interference fit.

8. The wheel axle assembly according to claim 1, characterized in that: The threaded hole (14) surrounds the long shaft body (1), and a bolt (15) is threadedly connected inside the threaded hole (14).

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