Eccentric shaft of anti-lock brake system (ABS) motor

Abstract

The utility model provides an anti-lock brake system (ABS) motor eccentric shaft. The anti-lock brake system (ABS) motor eccentric shaft comprises a driving part and a driving part, the rotating shaft is installed at the output end of the driving component, an eccentric shaft is installed at the other end of the rotating shaft through a connecting assembly, a plurality of eccentric wheels are installed on the outer surface of the eccentric shaft, an ABS component is installed at the output end of the driving component, and the driving component comprises a sealing cover, a rotor, a shell and a stator. According to the ABS anti-lock motor eccentric shaft provided by the utility model, through the design of the eccentric wheel with the oval section, on the premise that the strength requirement is met, larger flexural rigidity can be provided in the long-axis direction, the short-axis direction is relatively flexible, and the hollow structure of the eccentric shaft can reduce the rotational inertia of a driving part, so that the response speed of the driving part is higher, and the service life of the driving part is prolonged. Due to the reinforcing ribs, the structural integrity of the eccentric shaft is guaranteed when the eccentric shaft bears complex loads such as impact and torsion, the service life of the eccentric shaft is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of eccentric shafts for ABS anti-lock braking motors, and in particular to eccentric shafts for ABS anti-lock braking motors. Background Technology

[0002] An eccentric shaft is generally fixed to the rotating shaft of a motor through an eccentric hole. When the motor starts, it performs cam motion. Therefore, it is widely used in automobiles, engines, pumps, etc. An eccentric shaft motor is a special kind of electric motor. Its working principle is different from that of ordinary DC or AC motors. It uses the centrifugal force generated by the rotation of the eccentric wheel to drive the rotor to rotate.

[0003] The main function of the eccentric shaft in the ABS anti-lock braking motor is to balance the motor operation, reduce vibration and noise, thereby ensuring the stability and reliability of the motor operation. The ABS system controls the magnitude of the braking force so that the wheels are in a state of rolling and sliding during braking.

[0004] The existing ABS anti-lock braking motor eccentric shaft is generally a solid shaft, which is heavy, increases cost, and produces more noise and vibration during braking, affecting stability.

[0005] Therefore, it is necessary to provide an eccentric shaft for the ABS anti-lock braking motor to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides an eccentric shaft for an ABS anti-lock braking motor, which solves the problem that solid ABS anti-lock braking motor eccentric shafts are not only more expensive, but also produce more noise or vibration during use, which affects stability.

[0007] To solve the above-mentioned technical problems, the ABS anti-lock braking motor eccentric shaft provided by this utility model includes: a drive component;

[0008] A rotating shaft is installed at the output end of a drive component. An eccentric shaft is installed at the other end of the rotating shaft via a connecting assembly. Multiple eccentric wheels are installed on the outer surface of the eccentric shaft. An ABS component is installed at the output end of the drive component. The drive component includes a sealing cover, a rotor, a housing, and a stator. The sealing cover and the housing are used to install the rotor and the stator. Multiple heat dissipation holes are opened on the outer surface of the eccentric shaft.

[0009] The weight reduction port is located inside the eccentric shaft. The inner surface of the weight reduction port has multiple slots. The weight reduction port is equipped with a mounting tube, and the outer surface of the mounting tube is fixedly connected with multiple reinforcing ribs.

[0010] The reinforcing ribs are inserted into the slots to increase the strength of the eccentric shaft. The ABS component is an anti-lock braking system. The rotor is connected to the shaft at one end and is located inside the stator.

[0011] Taking an elliptical cross-section as an example, the eccentric wheel provides greater bending stiffness along the long axis while being more flexible along the short axis, provided that strength requirements are met. When the motor operates in the ABS system, it is subjected to complex alternating loads. This irregular cross-section can better adapt to forces in different directions, reduce shaft deformation, ensure the stability of the eccentricity, and thus ensure precise control of the braking system and improve the anti-lock braking effect. At the same time, through finite element analysis, the stress and strain distribution of the shaft under different working conditions is accurately simulated, and the specific parameters of the irregular cross-section are optimized to achieve the best performance state of the shaft structure. The weight reduction port reduces the weight of the shaft without reducing its strength and stiffness. Through advanced processes such as precision casting or CNC machining, crisscrossing reinforcing ribs are reasonably arranged in the hollow part. These reinforcing ribs are optimized according to the stress characteristics of the shaft. For example, in the eccentric part where a large bending moment is subjected, the density and thickness of the reinforcing ribs are appropriately increased.

[0012] Preferably, a limit assembly is installed at the other end of the eccentric shaft, and a monitoring component is installed inside the limit assembly;

[0013] The monitoring component is inserted into the other end of the mounting tube to monitor the operating status of the eccentric shaft. The monitoring component includes vibration and temperature sensors and can be wireless or wired.

[0014] Preferably, a limiting groove is formed on the outer surface of the rotating shaft, and a retaining strip is installed inside each limiting groove;

[0015] The clip is inserted into the limiting groove inside the docking ring.

[0016] Preferably, the connecting assembly includes a mating ring, a fixing bolt, a limiting ring, a fastener, and a limiting shaft. The fixing bolt is used to fix the mating ring to the outer surface of the rotating shaft, and the fastener is used to fix the limiting ring to one end of the eccentric shaft.

[0017] The limiting shaft is inserted into the interior of one end of the mounting tube.

[0018] Preferably, a mounting base is installed at the bottom of the driving component, the mounting base including a base plate and mounting holes;

[0019] The mounting bracket is used to fix the drive component in the corresponding position.

[0020] Preferably, a device frame is mounted on the top of the mounting base, and a sealing cover is mounted on the top of the device frame.

[0021] Compared with related technologies, the ABS anti-lock braking motor eccentric shaft provided by this utility model has the following advantages:

[0022] Beneficial effects:

[0023] This utility model provides an eccentric shaft for an ABS anti-lock braking motor. To reduce the weight of the eccentric shaft and increase operational stability, a weight-reduction port with multiple slots is cut in the middle of the eccentric shaft using advanced processes such as precision casting or CNC machining. Then, an installation tube with multiple reinforcing ribs is injection molded into the weight-reduction port, with the reinforcing ribs inserted into the slots to increase the strength of the eccentric shaft. Simultaneously, an eccentric wheel with an irregular cross-section better adapts to forces in different directions, reducing shaft deformation and ensuring the stability of the eccentricity. The eccentric shaft and the drive component's shaft are then connected via a connecting assembly. This design, using an elliptical cross-section eccentric wheel, provides greater bending stiffness along the long axis while offering relative flexibility along the short axis, while meeting strength requirements. The hollow structure of the eccentric shaft reduces the rotational inertia of the drive component, resulting in faster response. The reinforcing ribs ensure the structural integrity of the eccentric shaft under complex loads such as impact and torsion, extending its service life and reducing maintenance costs. Attached Figure Description

[0024] Figure 1 A schematic diagram of a preferred embodiment of the ABS anti-lock braking motor eccentric shaft provided by this utility model;

[0025] Figure 2 A schematic diagram of the rotating shaft is provided for this utility model;

[0026] Figure 3 A schematic diagram of the installation tube is provided for this utility model;

[0027] Figure 4 A structural schematic diagram of the monitoring component is provided for this utility model;

[0028] Figure 5 Provided for this utility model Figure 3 An enlarged view of point A shown.

[0029] The diagram is labeled as follows: 1. Mounting base; 101. Base plate; 102. Mounting hole; 2. Equipment frame; 3. Sealing cover; 4. Connecting assembly; 401. Butt ring; 402. Fixing bolt; 403. Limiting ring; 404. Fastener; 405. Limiting shaft; 5. Heat dissipation hole; 6. Limiting assembly; 601. Mounting plate; 602. Limiting ring; 7. Eccentric wheel; 8. Eccentric shaft; 9. Drive component; 901. Sealing cover; 902. Rotor; 903. Housing; 904. Stator; 10. Rotating shaft; 11. ABS component; 12. Slot; 13. Weight reduction port; 14. Mounting tube; 15. Reinforcing rib; 16. Monitoring component; 17. Locking strip; 18. Limiting groove. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of the ABS anti-lock braking motor eccentric shaft provided by this utility model; Figure 2 A schematic diagram of the rotating shaft is provided for this utility model; Figure 3 A schematic diagram of the installation tube is provided for this utility model; Figure 4 A structural schematic diagram of the monitoring component is provided for this utility model; Figure 5 Provided for this utility model Figure 3 The enlarged view at point A is shown. The eccentric shaft of the ABS anti-lock braking motor includes: drive component 9;

[0032] A rotating shaft 10 is installed at the output end of the drive component 9. An eccentric shaft 8 is installed at the other end of the rotating shaft 10 via a connecting assembly 4. Multiple eccentric wheels 7 are installed on the outer surface of the eccentric shaft 8. An ABS component 11 is installed at the output end of the drive component 9. The drive component 9 includes a sealing cover 901, a rotor 902, a housing 903, and a stator 904. The sealing cover 901 and the housing 903 are used to install the rotor 902 and the stator 904. Multiple heat dissipation holes 5 are opened on the outer surface of the eccentric shaft 8.

[0033] The weight reduction port 13 is located inside the eccentric shaft 8. The inner surface of the weight reduction port 13 is provided with multiple slots 12. The weight reduction port 13 is provided with an installation tube 14. The outer surface of the installation tube 14 is fixedly connected with multiple reinforcing ribs 15.

[0034] The reinforcing rib 15 is inserted into the slot 12 to increase the strength of the eccentric shaft 8. The ABS component 11 is an anti-lock braking system. The rotor 902 is connected to the shaft 10 at one end and is located inside the stator 904.

[0035] Taking the eccentric wheel 7 as an example with an elliptical cross-section, under the premise of meeting strength requirements, it can provide greater bending stiffness in the long axis direction and is relatively flexible in the short axis direction. When the motor is working in the ABS system, it is subjected to complex alternating loads. This irregular cross-section can better adapt to forces in different directions, reduce shaft deformation, ensure the stability of the eccentricity, and thus ensure the precise control of the braking system and improve the anti-lock braking effect. At the same time, through finite element analysis, the stress and strain distribution of the shaft under different working conditions is accurately simulated, and the specific parameters of the irregular cross-section are optimized so that the shaft structure reaches the best performance state. The weight reduction port 13 reduces the weight of the shaft without reducing the weight of the shaft. To reduce its strength and stiffness, advanced processes such as precision casting or CNC machining are used to rationally arrange crisscrossing reinforcing ribs 15 in the hollow part. These reinforcing ribs 15 are optimized according to the stress characteristics of the shaft. For example, in the eccentric part where it is subjected to a large bending moment, the density and thickness of the reinforcing ribs are appropriately increased. On the one hand, the hollow structure can reduce the rotational inertia of the motor, making the motor respond faster. When the ABS system quickly adjusts the braking pressure, the motor can quickly drive the eccentric shaft to move. On the other hand, the presence of reinforcing ribs ensures the structural integrity of the shaft when subjected to complex loads such as impact and torsion, extends the service life of the eccentric shaft, and reduces maintenance costs.

[0036] The other end of the eccentric shaft 8 is equipped with a limit component 6, and a monitoring component 16 is installed inside the limit component 6.

[0037] The monitoring component 16 is inserted into the interior of the other end of the mounting tube 14 to monitor the operating status of the eccentric shaft 8. The monitoring component 16 includes vibration and temperature sensors and can be wireless or wired.

[0038] The outer surface of the rotating shaft 10 is provided with a limiting groove 18, and a retaining strip 17 is installed inside the limiting groove 18.

[0039] The locking strip 17 is inserted into the limiting groove 18 inside the docking ring 401 to increase connection stability.

[0040] The connecting assembly 4 includes a docking ring 601, a fixing bolt 402, a limiting ring 403, a fastener 404, and a limiting shaft 405. The fixing bolt 402 is used to fix the docking ring 601 to the outer surface of the rotating shaft 10, and the fastener 404 is used to fix the limiting ring 403 to one end of the eccentric shaft 8.

[0041] The limiting shaft 405 is inserted into the interior of one end of the mounting tube 14 to increase connection stability.

[0042] The bottom of the drive component 9 is equipped with a mounting base 1, which includes a base plate 101 and a mounting hole 102.

[0043] Mounting base 1 is used to fix the drive component 9 in the corresponding position, and mounting hole 102 facilitates the passage of bolts.

[0044] The top of the mounting base 1 is equipped with a device frame 2, and the top of the device frame 2 is equipped with a sealing cover 3;

[0045] The device frame 2 contains a controller that works with the device and a signal receiving and transmission device that works with the monitoring component 16.

[0046] The working principle of the ABS anti-lock motor eccentric shaft provided by this utility model is as follows:

[0047] A weight-reducing opening 13 with multiple slots 12 is cut in the middle of the eccentric shaft 8 using advanced processes such as precision casting or CNC machining. Then, an installation tube 14 with multiple reinforcing ribs 15 is injection molded into the weight-reducing opening 13, and the reinforcing ribs 15 are inserted into the slots 12 to increase the strength of the eccentric shaft 8. At the same time, the eccentric wheel 7 with an irregular cross-section design better adapts to forces in different directions, reduces shaft deformation, and ensures the stability of the eccentricity. Then, the eccentric shaft 8 and the rotating shaft 10 of the drive component 9 are connected by the connecting assembly 4.

[0048] Compared with related technologies, the ABS anti-lock braking motor eccentric shaft provided by this utility model has the following advantages:

[0049] Beneficial effects:

[0050] To reduce the weight of the eccentric shaft of the ABS anti-lock braking motor and increase operational stability, a weight-reducing opening 13 with multiple slots 12 is cut in the middle of the eccentric shaft 8 using advanced processes such as precision casting or CNC machining. Then, an installation tube 14 with multiple reinforcing ribs 15 is injection molded into the weight-reducing opening 13, and the reinforcing ribs 15 are inserted into the slots 12 to increase the strength of the eccentric shaft 8. At the same time, the eccentric wheel 7 with an irregular cross-section design better adapts to forces in different directions, reduces shaft deformation, and ensures the stability of the eccentricity. Then, the eccentric shaft 8 and the rotating shaft 10 of the drive component 9 are connected by the connecting component 4. Through this design, the eccentric wheel 7 with an elliptical cross-section can provide greater bending stiffness in the long axis direction and relatively flexible in the short axis direction while meeting the strength requirements. The hollow structure of the eccentric shaft 8 can reduce the rotational inertia of the drive component 9, making the drive component 9 respond faster. The presence of the reinforcing ribs 15 ensures the structural integrity of the eccentric shaft 8 when subjected to complex loads such as impact and torsion, extends the service life of the eccentric shaft 8, and reduces maintenance costs.

[0051] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An eccentric shaft for an ABS anti-lock braking motor, characterized in that, include: Drive components; A rotating shaft is installed at the output end of a drive component. An eccentric shaft is installed at the other end of the rotating shaft via a connecting assembly. Multiple eccentric wheels are installed on the outer surface of the eccentric shaft. An ABS component is installed at the output end of the drive component. The drive component includes a sealing cover, a rotor, a housing, and a stator. The sealing cover and the housing are used to install the rotor and the stator. Multiple heat dissipation holes are opened on the outer surface of the eccentric shaft. The weight reduction port is located inside the eccentric shaft. The inner surface of the weight reduction port has multiple slots. The weight reduction port is equipped with a mounting tube, and the outer surface of the mounting tube is fixedly connected with multiple reinforcing ribs.

2. The ABS anti-lock braking motor eccentric shaft according to claim 1, characterized in that, A limit assembly is installed at the other end of the eccentric shaft, and a monitoring component is installed inside the limit assembly.

3. The ABS anti-lock braking motor eccentric shaft according to claim 1, characterized in that, The outer surface of the rotating shaft is provided with a limiting groove, and a retaining strip is installed inside the limiting groove.

4. The ABS anti-lock braking motor eccentric shaft according to claim 1, characterized in that, The connecting assembly includes a mating ring, a fixing bolt, a limiting ring, a fastener, and a limiting shaft. The fixing bolt is used to fix the mating ring to the outer surface of the rotating shaft, and the fastener is used to fix the limiting ring to one end of the eccentric shaft.

5. The ABS anti-lock braking motor eccentric shaft according to claim 1, characterized in that, The bottom of the drive component is equipped with a mounting base, which includes a base plate and mounting holes.

6. The ABS anti-lock braking motor eccentric shaft according to claim 5, characterized in that, The mounting base has a device frame installed on top, and the device frame has a sealing cover installed on top.

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