Gear transmission structure of low-noise variable speed motor

Abstract

The utility model discloses a gear transmission structure of low noise variable speed motor relates to low noise variable speed motor accessory field, and the utility model discloses a motor body, anti -collision mechanism and interval mechanism, one side of motor body is provided with the adaptation machine shell, the front of adaptation machine shell is provided with the pivot bearing surface, the front of pivot bearing surface is provided with the axle hole, the inside middle part of axle hole is provided with the pivot transversely and penetrates, anti -collision mechanism is used to prevent the pressure impact pivot of outside, interval mechanism is used to provide the working area for pivot, driving gear, this gear transmission structure of low noise variable speed motor receives impact force through the shock pad, drives the reverse guide rack to make the receiving shaft sleeve compression reset spring, utilizes reset spring deformation to absorb impact energy, and the limit frame and limit axle direction limit, alleviate the impact of outside pivot, reduce the component damage risk caused by impact, guarantee pivot and the normal operation of relevant parts.

Description

Technical Field

[0001] This utility model relates to the technical field of low-noise variable speed motor accessories, specifically a gear transmission structure for a low-noise variable speed motor. Background Technology

[0002] The gear transmission structure of a low-noise variable speed motor is a key component combination used to achieve power transmission and speed change functions while reducing operating noise during motor operation. It effectively distributes and converts the motor's power through the meshing of gears and is widely used in numerous industrial and civil equipment.

[0003] Low-noise variable speed motors often face the problem of component damage caused by external impacts. For example, in working environments with high vibration or prone to collisions, critical components such as the motor's pivot are easily damaged by impacts, affecting the normal operation of the motor. To solve this problem, a low-noise continuously variable transmission (CVT) gear transmission structure disclosed in prior art CN213954273U is used. By employing specific gear combinations (including a CVP CVT, a primary gear ring, and a secondary gear shaft), the gear transmission path and structural compactness are optimized, which reduces additional impacts caused by loose components or unreasonable transmission to a certain extent.

[0004] However, this technology only optimizes the overall layout and component assembly of the gear transmission structure, lacking targeted buffering protection measures for impacts directly applied to critical components such as the pivot. When encountering strong external impacts, it cannot effectively buffer the impact force, easily leading to damage to components such as the pivot.

[0005] Therefore, in order to address the shortcomings of the existing system, a gear transmission structure for a low-noise variable speed motor was proposed. Utility Model Content

[0006] The purpose of this invention is to provide a gear transmission structure for a low-noise variable speed motor to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a gear transmission structure for a low-noise variable speed motor, comprising: a motor body, an anti-collision mechanism and a spacer mechanism, wherein an adapter housing is provided on one side of the motor body, a pivot bearing surface is provided on the front side of the adapter housing, a shaft hole is provided on the front side of the pivot bearing surface, a pivot is transversely arranged in the middle of the inner side of the shaft hole, and a drive gear is provided at the front end of the pivot.

[0008] The anti-collision mechanism is used to prevent external pressure from impacting the pivot.

[0009] The spacer mechanism is used to provide a working area for the pivot and drive gear.

[0010] Furthermore, the anti-collision mechanism includes a limiting frame, a limiting shaft, a receiving bushing, a return spring, a counter-guide rack, and a shock absorber. A limiting frame is provided at the upper end of the front side of the adapter housing. A limiting shaft is provided laterally inside the limiting frame. A receiving bushing is provided outside the limiting shaft. A return spring is provided on the other side of the receiving bushing near the limiting frame. A counter-guide rack is provided on the front side of the receiving bushing facing the gear. A shock absorber is provided at one end of the counter-guide rack.

[0011] Furthermore, the shock-absorbing plate has a trapezoidal shape.

[0012] Furthermore, the anti-missile rack and the shock absorber are fixedly connected.

[0013] Furthermore, the spacer mechanism includes a limiting frame, a limiting shaft, a receiving bushing, a return spring, a positive guide rack, and an isolation rod. A limiting frame is provided at the lower end of the front side of one side of the adapter housing. A limiting shaft is provided laterally inside the limiting frame. A receiving bushing is provided outside the limiting shaft. A return spring is provided on the other side of the receiving bushing near the limiting frame. A positive guide rack is provided on the front side of the receiving bushing facing the auxiliary gear. An isolation rod is provided on the side of the positive guide rack near the motor body.

[0014] Furthermore, the isolation rod has an L-shaped structure, and an anti-pinch block is provided on the front side of the positive guide rack near the isolation rod.

[0015] Furthermore, the isolation rod and the positive guide rack are fixedly connected.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model uses a shock-absorbing plate to receive the impact force, which drives the anti-guide rack to compress the return spring of the receiving bushing. The return spring absorbs the impact energy through deformation, and is guided and limited by the limit frame and limit shaft, thereby reducing the impact of the external force on the pivot, reducing the risk of component damage caused by the impact, and ensuring the normal operation of the pivot and related components.

[0018] 2. This utility model uses an L-shaped isolation rod to block components that may intrude into the working area. In conjunction with components such as a positive guide rack, a receiving bushing, and a return spring, the return spring is compressed and buffered when under pressure, while the limiting frame and limiting shaft guide and limit the movement, maintaining the independence of the working area and ensuring the working environment of the pivot and drive gear. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the low-noise variable speed motor gear transmission of this utility model;

[0020] Figure 2This is a partially enlarged schematic diagram of the low-noise variable speed motor anti-collision mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram from another perspective of the low-noise variable speed motor gear transmission structure of this utility model;

[0022] Figure 4 This is a partially enlarged schematic diagram of the low-noise variable speed motor spacer mechanism of this utility model.

[0023] In the diagram: 1. Motor body; 2. Pivot bearing surface; 3. Adaptor housing; 4. Shaft hole; 5. Anti-vibration plate; 6. Attached gear; 7. Pivot; 8. Drive gear; 9. Isolation rod; 10. Positive guide rack; 11. Anti-pinch block; 12. Reverse guide rack; 13. Limit frame; 14. Limit shaft; 15. Bearing bushing; 16. Return spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-4 As shown, a gear transmission structure for a low-noise variable speed motor includes: a motor body 1, an anti-collision mechanism and a spacer mechanism. An adapter housing 3 is provided on one side of the motor body 1. A pivot bearing surface 2 is provided on the front of the adapter housing 3. A shaft hole 4 is provided on the front of the pivot bearing surface 2. A pivot 7 is transversely arranged in the middle of the inner side of the shaft hole 4. A drive gear 8 is provided at the front end of the pivot 7.

[0026] The anti-collision mechanism is used to prevent external pressure from impacting the pivot 7;

[0027] The spacer mechanism is used to provide a working area for the pivot 7 and the drive gear 8.

[0028] The anti-collision mechanism includes a limiting frame 13, a limiting shaft 14, a receiving bushing 15, a return spring 16, a reverse guide rack 12, and a shock absorber 5. A limiting frame 13 is provided at the upper end of the front side of the adapter housing 3. A limiting shaft 14 is provided horizontally inside the limiting frame 13. A receiving bushing 15 is provided outside the limiting shaft 14. A return spring 16 is provided on the other side of the receiving bushing 15 near the limiting frame 13. A reverse guide rack 12 is provided on the front side of the receiving bushing 15 facing the attached gear 6. A shock absorber 5 is provided at one end of the reverse guide rack 12.

[0029] In another case, in a certain industrial automated production line, the equipment will generate frequent vibrations and occasional external collisions during operation. The low-noise variable speed motor used in this production line adopts the aforementioned gear transmission structure with anti-collision mechanism.

[0030] During daily operation, the robotic arm on the production line may experience unexpected lateral impact on the pivot 7 of the motor due to operational errors or material shaking while moving and grabbing materials. When this impact force is transmitted to the gear transmission structure of the motor, the anti-collision mechanism begins to function.

[0031] The shock absorber 5 first comes into contact with the impact force. Due to its trapezoidal structure, it can disperse the impact force. Subsequently, the shock absorber 5 drives the anti-guide rack 12 to move. The anti-guide rack 12 pushes the receiving sleeve 15 to slide on the limiting shaft 14. The return spring 16 is compressed. In this process, the limiting frame 13 and the limiting shaft 14 play a precise guiding and limiting role, ensuring that the receiving sleeve 15 moves along the predetermined direction without deviation or jamming.

[0032] During the compression process, the return spring 16 absorbs a large amount of impact energy, which buffers and dissipates the impact force that might have directly acted on the pivot 7. After buffering, the impact force transmitted to the pivot 7 is greatly reduced, which effectively reduces the probability of the pivot 7 being damaged by impact and ensures that the motor can run continuously and stably.

[0033] After the impact ends, the return spring 16 recovers its deformation by its own elasticity, pushing the receiving bushing 15, the anti-collision rack 12 and the shock absorber 5 back to their initial positions, so that the anti-collision mechanism is ready to deal with the next possible impact, ensuring that the motor can work reliably for a long time in complex industrial production environments.

[0034] like Figures 1-4 As shown, a gear transmission structure for a low-noise variable speed motor includes a spacer mechanism comprising a limiting frame 13, a limiting shaft 14, a receiving sleeve 15, a return spring 16, a positive guide rack 10, and a spacer rod 9. A limiting frame 13 is provided at the lower end of the front side of the adapter housing 3. A limiting shaft 14 is laterally arranged inside the limiting frame 13. A receiving sleeve 15 is provided outside the limiting shaft 14. A return spring 16 is provided on the other side of the receiving sleeve 15 near the limiting frame 13. A positive guide rack 10 is provided on the other side of the receiving sleeve 15 facing the auxiliary gear 6. A spacer rod 9 is provided on the side of the positive guide rack 10 near the motor body 1.

[0035] The rest are in a precision electronic equipment manufacturing facility with a compact internal space and a very close arrangement between the components. The low-noise variable speed motor equipped with this facility uses the aforementioned gear transmission structure with a spacer mechanism.

[0036] During equipment operation, due to the movement and vibration of other components, components may shift and intrude into the working areas of the motor pivot 7 and the drive gear 8. At this time, the spacer mechanism plays a key role.

[0037] The L-shaped isolation bar 9 first blocks any potentially intruding components. Once a component continuously presses against the isolation bar 9, the positive guide rack 10 will be under pressure, which in turn drives the receiving sleeve 15 to slide on the limiting shaft 14. The return spring 16 is compressed. The limiting frame 13 and the limiting shaft 14 precisely control the movement path of the receiving sleeve 15 to ensure its smooth sliding.

[0038] The anti-pinch block 11 effectively prevents the connection between the positive guide rack 10 and the isolation rod 9 from being damaged by excessive compression during this process, ensuring the integrity of each component of the partition mechanism. As the return spring 16 is compressed, the resistance of the intruding component increases, making it difficult to further intrude into the working area, thereby ensuring that the normal working space of the pivot 7 and the drive gear 8 is not disturbed.

[0039] When the external force that caused the component to shift disappears, the return spring 16 returns to its original shape, pushing the receiving bushing 15, the positive guide rack 10 and the isolation rod 9 back to their initial positions, re-establishing isolation protection for the working area. In this way, the isolation mechanism continuously ensures the normal operation of the motor in the complex space environment inside the precision equipment, avoiding motor failure caused by component intrusion, and improving the stability and reliability of the entire electronic equipment manufacturing device.

[0040] Working principle: When using the gear transmission structure of this low-noise variable speed motor, the motor body 1 is the power source. When the motor body 1 is running, its power is transmitted to the pivot 7 through the component connected to the pivot 7. The pivot 7 is set laterally through the middle of the inner side of the shaft hole 4. The drive gear 8 installed at the front end rotates under the drive of the pivot 7, thereby realizing the output and transmission of power.

[0041] When external pressure impacts the pivot 7, this impact force is transmitted to the components associated with the pivot 7. The shock absorber 5 is the first to be impacted, and its trapezoidal structure helps to disperse the impact force. The impact force causes the shock absorber 5 to move the anti-guide rack 12. The anti-guide rack 12 pushes the receiving sleeve 15 to slide on the limiting shaft 14, compressing the return spring 16. The elastic deformation of the return spring 16 absorbs part of the impact force. At the same time, the limiting frame 13 and the limiting shaft 14 guide and limit the movement of the receiving sleeve 15 to prevent it from moving excessively. When the impact force disappears, the return spring 16 returns to its original deformation, pushing the receiving sleeve 15 to return to its original position. The anti-guide rack 12 and the shock absorber 5 also return to their initial positions and continue to play a protective role.

[0042] During motor operation, the isolation mechanism provides a working area for the pivot 7 and the drive gear 8. When a component may intrude into the working area, the L-shaped isolation rod 9 first acts as a blockage. If there is still pressure causing the positive guide rack 10 to be under force, the positive guide rack 10 will drive the receiving sleeve 15 to slide on the limiting shaft 14, compressing the return spring 16. The limiting frame 13 and the limiting shaft 14 guide and limit the movement of the receiving sleeve 15. The anti-pinch block 11 can prevent the connection between the positive guide rack 10 and the isolation rod 9 from being excessively squeezed and damaged. When the external pressure disappears, the return spring 16 restores its deformation, pushes the receiving sleeve 15 to reset, and the positive guide rack 10 and the isolation rod 9 return to their initial positions, maintaining the isolation state of the working area.

[0043] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A gear transmission structure for a low-noise variable speed motor, comprising: The motor body (1), anti-collision mechanism and spacer mechanism are characterized in that an adapter housing (3) is provided on one side of the motor body (1), a pivot bearing surface (2) is provided on the front side of the adapter housing (3), a shaft hole (4) is provided on the front side of the pivot bearing surface (2), a pivot (7) is transversely provided in the middle of the inner side of the shaft hole (4), and a drive gear (8) is provided at the front end of the pivot (7). The anti-collision mechanism is used to prevent external pressure from impacting the pivot (7); The spacer mechanism is used to provide a working area for the pivot (7) and the drive gear (8).

2. The gear transmission structure of a low-noise variable speed motor according to claim 1, characterized in that, The anti-collision mechanism includes a limiting frame (13), a limiting shaft (14), a receiving bushing (15), a return spring (16), a reverse guide rack (12), and a shock absorber (5). A limiting frame (13) is provided on the upper end of the front side of the adapter housing (3). A limiting shaft (14) is provided horizontally inside the limiting frame (13). A receiving bushing (15) is provided outside the limiting shaft (14). A return spring (16) is provided on the other side of the receiving bushing (15) near the limiting frame (13). A reverse guide rack (12) is provided on the front side of the receiving bushing (15) facing the auxiliary gear (6). A shock absorber (5) is provided at one end of the reverse guide rack (12).

3. The gear transmission structure of a low-noise variable speed motor according to claim 2, characterized in that, The shock absorber (5) has a trapezoidal shape.

4. The gear transmission structure of a low-noise variable speed motor according to claim 2, characterized in that, The anti-guide rack (12) and the shock absorber (5) are fixedly connected.

5. The gear transmission structure of a low-noise variable speed motor according to claim 1, characterized in that, The spacer mechanism includes a limiting frame (13), a limiting shaft (14), a receiving bushing (15), a return spring (16), a positive guide rack (10), and an isolation rod (9). The limiting frame (13) is provided at the lower end of the front side of the adapter housing (3). The limiting shaft (14) is provided horizontally inside the limiting frame (13). The receiving bushing (15) is provided outside the limiting shaft (14). The return spring (16) is provided on the other side of the receiving bushing (15) near the limiting frame (13). The positive guide rack (10) is provided on the other side of the front of the receiving bushing (15) facing the auxiliary gear (6). The isolation rod (9) is provided on the side of the positive guide rack (10) near the motor body (1).

6. The gear transmission structure of a low-noise variable speed motor according to claim 5, characterized in that, The isolation rod (9) has an L-shaped structure, and an anti-pinch block (11) is provided on the front side of the positive guide rack (10) near the isolation rod (9).

7. The gear transmission structure of a low-noise variable speed motor according to claim 5, characterized in that, The isolation rod (9) and the positive guide rack (10) are fixedly connected.

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