Integrated top cover suitable for low-speed direct drive motor

Abstract

The utility model relates to an integrated top cover suitable for a low-speed direct-drive motor, which comprises a top cover body, a shaft hole is arranged on the top cover body, a reinforcing ring is distributed on the front surface of the top cover body and outside the shaft hole, a plurality of reinforcing scrolls are radially distributed on the reinforcing ring towards the edge of the top cover body, and weight reduction mechanisms are distributed on the reinforcing scrolls. A plurality of connecting mechanisms are distributed on the edge of the top cover body, a butt joint ring sleeve is distributed on the back face of the top cover body and located on the outer side of the shaft hole, a limiting ring concentric with the shaft hole is further distributed on the back face of the top cover body, and a plurality of reinforcing assemblies are distributed between the limiting ring and the edge of the top cover body. Therefore, through the connecting ring sleeve and the limiting ring, stable butt joint with a stator device in the low-speed direct-drive motor can be realized, a proper abdication requirement is met, and an abnormal inclination angle or a jacking state after the top cover body is combined cannot occur.

Description

Technical Field

[0001] This utility model relates to a top cover, and more particularly to an integrated top cover suitable for low-speed direct drive motors. Background Technology

[0002] Low-speed direct-drive motors are a special type of motor. Compared to traditional motors with a gearbox, low-speed direct-drive motors eliminate the intermediate reduction mechanism. This simplifies the overall drive system structure and reduces its size. In space-constrained applications, such as precision instruments and small robot joints, this compact structure offers significant advantages. Furthermore, the simpler structure also means fewer potential failure points, improving system reliability and stability.

[0003] However, the top cover structure of existing low-speed direct-drive motors is relatively simple. Specifically, it is a flat plate-like structure that fits the contour of the outer shell and is usually locked with four screws. During use, although the vibration generated by the motor itself is small, if the drive shaft comes into accidental contact with the top cover, significant resonance and noise can still occur. At the same time, during the locking and assembly process, abnormal stress can easily occur at local joint points, causing abnormal "bulging" or "warping" of the top cover, affecting the integrity of the joint and potentially creating gaps, which may lead to oil leakage after prolonged use.

[0004] Furthermore, the back of the existing top cover also appears to be a flat structure, which cannot be fitted closely to the stator assembly of the motor body. When the stator assembly shakes slightly due to resonance during operation, it cannot achieve effective straightening and positioning.

[0005] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create an integrated top cover suitable for low-speed direct drive motors, making it more valuable for industrial use. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an integrated top cover suitable for low-speed direct drive motors.

[0007] This utility model discloses an integrated top cover suitable for low-speed direct-drive motors, comprising a top cover body with a shaft hole. On the front side of the top cover body, outside the shaft hole, are reinforcing rings. Several reinforcing strips are radially distributed from the reinforcing rings toward the edge of the top cover body. Weight-reducing mechanisms are distributed on the reinforcing strips. Several connecting mechanisms are distributed along the edge of the top cover body. On the back side of the top cover body, outside the shaft hole, are mating rings. A limiting ring concentric with the shaft hole is also distributed on the back side of the top cover body. Several reinforcing components are distributed between the limiting ring and the edge of the top cover body.

[0008] Furthermore, in the aforementioned integrated top cover suitable for low-speed direct drive motors, the reinforcing ring is an annular ring, and mating bosses are distributed on the inner side of the reinforcing ring, with silicone damping rings placed on the mating bosses.

[0009] Furthermore, in the aforementioned integrated top cover suitable for low-speed direct-drive motors, the reinforcing strips are elongated teardrop-shaped, and the ends of the reinforcing strips are provided with connecting mechanisms.

[0010] Furthermore, in the aforementioned integrated top cover suitable for low-speed direct-drive motors, the weight-reducing mechanism is a weight-reducing hole, which is an oblong hole.

[0011] Furthermore, in the aforementioned integrated top cover suitable for low-speed direct-drive motors, the connecting mechanism is a threaded hole, and a connecting screw is installed in the threaded hole.

[0012] Furthermore, in the aforementioned integrated top cover suitable for low-speed direct drive motors, the outward protrusion of the docking ring sleeve is 1 to 4 centimeters high, and the outer periphery of the docking ring sleeve is distributed with rounded chamfers.

[0013] Furthermore, in the aforementioned integrated top cover suitable for low-speed direct-drive motors, an auxiliary sealing ring is provided inside the docking ring sleeve.

[0014] Furthermore, in the aforementioned integrated top cover suitable for low-speed direct-drive motors, the reinforcing component is a reinforcing rib.

[0015] Furthermore, in the aforementioned integrated top cover suitable for low-speed direct drive motors, a transmission ring is distributed on the front side of the top cover body, and the reinforcing ring and reinforcing strip are integrally formed and distributed.

[0016] Furthermore, in the aforementioned integrated top cover suitable for low-speed direct drive motors, the back of the top cover body has annular connecting ridges distributed at the edge.

[0017] By means of the above solution, this utility model has at least the following advantages:

[0018] 1. Through the connecting ring and the limiting ring, it can achieve stable docking with the stator device in the low-speed direct drive motor and meet the appropriate clearance, so that there will be no abnormal tilting angle or lifting state after the top cover body is combined.

[0019] 2. The use of radially distributed reinforcing strips in conjunction with corresponding connecting mechanisms disperses the bonding stress, preventing bonding deformation and ensuring the flatness of the top cover body.

[0020] 3. The use of silicone damping rings prevents abnormal resonance and noise generation.

[0021] 4. It is equipped with an independent auxiliary sealing ring, which can effectively prevent oil spillage.

[0022] 5. An auxiliary sealing ring can be embedded in the mating grooves distributed at the front end of the housing to achieve a more snug fit, giving the motor a better overall integrity.

[0023] 6. The structure is simple and can be adapted to the existing housings for low-speed direct drive motors, resulting in low implementation costs.

[0024] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0025] Figure 1 This is a front view diagram of an integrated top cover suitable for low-speed direct-drive motors.

[0026] Figure 2 This is a schematic diagram of the reverse side structure of an integrated top cover suitable for low-speed direct drive motors.

[0027] The meanings of the labels in the figures are as follows.

[0028] 1. Top cover body 2. Shaft hole

[0029] 3 Reinforcing rings 4 Reinforcing banners

[0030] 5. Weight reduction mechanism 6. Connecting mechanism

[0031] 7. Connecting ring with 8. Limiting ring

[0032] 9. Reinforcement components; 10. Silicone vibration damping rings

[0033] 11 Auxiliary sealing ring 12 Transfer ring

[0034] 13 Annular Jointed Protrusions Detailed Implementation

[0035] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0036] like Figures 1 to 2An integrated top cover suitable for low-speed direct-drive motors includes a top cover body 1 with a shaft hole 2. Its unique feature is that reinforcing rings 3 are distributed on the front side of the top cover body 1, outside the shaft hole 2. This way, if the motor drive shaft experiences non-coaxial movement due to fluctuations in operating conditions and comes into contact with the sidewall of the shaft hole 2, the resulting stress will be dispersed by the reinforcing rings 3, preventing accumulation in a localized area of ​​the shaft hole 2 and avoiding abnormal deformation. Simultaneously, to better transmit and disperse stress, several reinforcing strips 4 are radially distributed from the reinforcing rings 3 towards the edge of the top cover body 1. Furthermore, the reinforcing strips 4 are equipped with weight-reducing mechanisms 5 to reduce unnecessary weight during stress transmission. During implementation, this invention also includes several connecting mechanisms 6 distributed along the edge of the top cover body 1. This allows for a locking connection with the housing of the low-speed direct-drive motor, ensuring a secure fit. To securely engage the motor end with the drive shaft and achieve a stable connection with the corresponding stator assembly, a mating ring 7 is distributed on the back of the top cover body 1, outside the shaft hole 2. After installation, the mating ring 7 is inserted into the engagement gap at the front end of the stator assembly, providing auxiliary positioning for the top cover body 1. To better engage one side of the stator assembly, a limiting ring 8 concentric with the shaft hole 2 is also distributed on the back of the top cover body 1. Thus, the limiting ring 8 and the mating ring 7 can achieve a concentric ring clamping fit, engaging the inner and outer walls of the front end of the stator assembly, achieving an effective end engagement. Furthermore, several reinforcing components 9 are distributed between the limiting ring 8 and the edge of the top cover body. During engagement, if subjected to engagement impact, the roundness can be maintained as much as possible, preventing abnormal deformation that could lead to abnormal engagement with the stator assembly.

[0037] In a preferred embodiment of this invention, the reinforcing ring 3 is an annular ring that conforms to the shape of the shaft hole 2. Simultaneously, mating bosses are distributed on the inner side of the reinforcing ring 3, and silicone damping rings 10 are placed on these bosses. Thus, when the drive shaft is connected to external components such as couplings, even if one end of the external component contacts the reinforcing ring 3, any improper vibrations during its operation can be absorbed by the silicone damping rings 10, preventing undue noise from resonance in the top cover body 1.

[0038] Looking further, the reinforcing strip 4 is elongated and teardrop-shaped, with connecting mechanisms 6 distributed at its ends. This allows for effective stress distribution, facilitating better stress transfer and dissipation. Therefore, during transportation and assembly, defects such as "warping" or "concavity" will not occur due to excessive localized stress on the top cover body 1. Simultaneously, the weight-reducing mechanism 5 consists of weight-reducing holes, which are elongated oval holes. This ensures that the reinforcing strip 4 resists deformation while reducing its own weight, preventing the overall machine body from becoming excessively heavy.

[0039] In practical implementation, the connecting mechanism 6 is a threaded hole, into which a connecting screw is installed. This allows the connecting screw to be screwed into the housing of the low-speed direct-drive motor, ensuring a secure connection between the present invention and the motor housing. The threaded connection facilitates tightening. Furthermore, the distribution of multiple connecting mechanisms 6 ensures stress dispersion, preventing abnormal warping of the top cover body 1 after connection and achieving a tight fit.

[0040] Meanwhile, the outward protrusion of the mating ring 7 is 1 to 4 centimeters, and the outer periphery of the mating ring 7 has rounded chamfers. This allows it to fit precisely into the mating gap at the front end of the stator assembly, preventing any raised gaps in the top cover body 1. According to current standard models, a protrusion height of 3.5 centimeters is optimal. Furthermore, an auxiliary sealing ring 11 is fitted inside the mating ring 7. This effectively blocks excess lubricating grease from overflowing from the housing or motor drive shaft, preventing improper spillage and ensuring better overall cleanliness of the motor.

[0041] Furthermore, the reinforcing component 9 used in this invention is a reinforcing rib, which facilitates the transmission of abnormal compression stress during assembly and ensures the roundness of the limiting ring 8. Additionally, for certain special application requirements, a transfer ring 12 can be distributed on the front side of the top cover body 1, with the transfer ring 12 integrally formed with the reinforcing strip 4. Thus, to accommodate the engagement groove distributed at the front end of the motor housing, annular engagement protrusions 13 are distributed on the back side of the top cover body 1 at the edge. During assembly, the annular engagement protrusions 13 are embedded in the engagement groove, where auxiliary adhesive can also be distributed to achieve effective embedding and fitting.

[0042] The working principle of this utility model is as follows:

[0043] After assembly, the mating ring 7 and the limiting ring 8 cooperate to fit snugly against one end of the stator assembly, preventing vibration and ensuring continuous and stable operation of the motor drive shaft. Simultaneously, the annular engagement protrusion 13 can be embedded in the engagement grooves distributed at the front end of the housing, filling the engagement gaps caused by engagement tolerances. Furthermore, threaded locking can be achieved using connecting screws, satisfying multi-point engagement requirements.

[0044] During operation, if there is excessive or improper momentary contact between the motor drive shaft and shaft hole 2, the vibration can be reduced by using the silicone damping ring 10 to avoid abnormal noise.

[0045] During the installation of the low-speed direct drive motor with external equipment, the bonding stress can still be transferred by the reinforcing strip 4 to ensure that the top cover body 1 does not undergo abnormal deformation and to improve its service life.

[0046] As can be seen from the above textual description and the accompanying drawings, the present invention has the following advantages:

[0047] 1. Through the connecting ring and the limiting ring, it can achieve stable docking with the stator device in the low-speed direct drive motor and meet the appropriate clearance, so that there will be no abnormal tilting angle or lifting state after the top cover body is combined.

[0048] 2. The use of radially distributed reinforcing strips in conjunction with corresponding connecting mechanisms disperses the bonding stress, preventing bonding deformation and ensuring the flatness of the top cover body.

[0049] 3. The use of silicone damping rings prevents abnormal resonance and noise generation.

[0050] 4. It is equipped with an independent auxiliary sealing ring, which can effectively prevent oil spillage.

[0051] 5. An auxiliary sealing ring can be embedded in the mating grooves distributed at the front end of the housing to achieve a more snug fit, giving the motor a better overall integrity.

[0052] 6. The structure is simple and can be adapted to the existing housings for low-speed direct drive motors, resulting in low implementation costs.

[0053] Furthermore, the directions or positional relationships described in this utility model are based on the directions or positional relationships shown in the accompanying drawings. They are only for the purpose of facilitating the description of this utility model and simplifying the description, and are not intended to indicate or imply that the device or structure referred to must have a specific orientation, or to operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An integrated top cover suitable for a low-speed direct-drive motor, comprising a top cover body, an axle hole being formed in the top cover body, characterized in that: The front surface of the top cover body, located outside the shaft hole, is provided with a reinforcing ring, the reinforcing ring is provided with a plurality of reinforcing strips radially towards the edge of the top cover body, the reinforcing strips are provided with a weight reduction mechanism, the edge of the top cover body is provided with a plurality of connecting mechanisms, the back surface of the top cover body, located outside the shaft hole, is provided with a butt joint ring, the back surface of the top cover body is also provided with a limiting ring concentric with the shaft hole, and a plurality of reinforcing assemblies are arranged between the limiting ring and the edge of the top cover.

2. The integrated top cover suitable for low-speed direct-drive motor according to claim 1, characterized in that: The reinforcing ring is an annular ring, the inner side of the reinforcing ring is provided with a butt joint boss, and a silica gel damping ring is placed on the butt joint boss.

3. The integrated top cover suitable for low-speed direct drive motor according to claim 1, characterized in that: The reinforcing strip is in the shape of a long strip drop, and the end of the reinforcing strip is provided with a connecting mechanism.

4. The integrated top cover suitable for low-speed direct drive motor according to claim 1, characterized in that: The weight reduction mechanism is a weight reduction hole, and the weight reduction hole is a long circular hole.

5. The integrated top cover suitable for low speed direct drive motor according to claim 1, wherein: The connecting mechanism is a threaded hole, and a connecting screw is installed in the threaded hole.

6. The one-piece top cover suitable for use in a low-speed direct drive motor of claim 1, wherein: The height of the outward protrusion of the butt joint ring is 1-4 cm, and the periphery of the butt joint ring is provided with a circular arc chamfer.

7. The one-piece top cover suitable for use in a low-speed direct drive motor of claim 1, wherein: The butt joint ring is provided with an auxiliary sealing ring.

8. The one-piece top cover suitable for use in a low-speed direct drive motor of claim 1, wherein: The reinforcing assembly is a reinforcing rib.

9. The one-piece top cover suitable for use in a low-speed direct drive motor of claim 1, wherein: The front surface of the top cover body is provided with a transmission ring, and the reinforcing ring and the reinforcing strip are integrally formed.

10. The one-piece top cover suitable for use in a low-speed direct drive motor of claim 1, wherein: The back surface of the top cover body, located at the edge portion, is provided with an annular bonding convex strip.

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