A motor structure and a robot having the same

Abstract

The utility model discloses a motor structure and robot with the motor structure, the motor structure includes motor, casing, first bearing assembly and second bearing assembly, and the casing is wrapped motor setting, and make the drive end of motor from the first end of casing exposed, first bearing assembly is set on the drive end, and first bearing assembly is embedded in the first end of casing, and second bearing assembly is fixedly connected with the first end of casing, and make second bearing assembly set on first bearing assembly. Adopt this embodiment, through setting first bearing assembly and second bearing assembly in succession on the drive end of motor, and make second bearing assembly fixedly connected with the first end of casing, can be shared by second bearing assembly load, effectively offset the influence of external weight to the first bearing assembly in the motor, avoid motor to bear load, thereby ensure that motor runs under the good working condition.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a motor structure and a robot having the motor structure. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It uses an energized coil (i.e., the stator winding) to generate a rotating magnetic field, which acts on the rotor (such as a squirrel-cage closed aluminum frame) to form a magnetoelectric torque, which is then output through the motor shaft.

[0003] With the development of society and the economy, the load on motors is also increasing. This places heavy-load demands on motors. However, existing motors typically only have one internal bearing to guide the rotation of the motor shaft. As the motor load increases, the force on the internal bearing also increases. Excessive load can easily cause the internal bearing to exceed its mirror load limit, resulting in the motor itself providing support for the load, affecting the motor's stability and service life.

[0004] Therefore, in order to solve this problem, this utility model proposes a novel motor structure to eliminate the influence of external weight on the internal bearings of the motor, thereby ensuring that the motor can operate in good working condition. Utility Model Content

[0005] The purpose of this invention is to provide a motor structure and a robot having the motor structure, in order to solve the technical problem that existing motors tend to provide support for the load when the load is too large, thereby affecting the stability and service life of the motor.

[0006] In one respect, to achieve the above objectives, this utility model provides a motor structure, including: a motor, a housing, a first bearing assembly, and a second bearing assembly; The housing encloses the motor, and the drive end of the motor is exposed from the first end of the housing; The first bearing assembly is sleeved on the drive end, and the first bearing assembly is embedded in the first end of the housing; The second bearing assembly is fixedly connected to the first end of the housing, and the second bearing assembly is sleeved on the first bearing assembly.

[0007] In this embodiment of the present invention, the second bearing assembly includes a fixing member and an abutting member; The abutting member is sleeved on the first bearing assembly and abuts against the first bearing assembly; The fastener is fixedly connected to the first end of the housing and is sleeved on the abutting member to abut against the abutting member.

[0008] In this embodiment of the invention, the fixing member is fixedly connected to the first end of the housing by screws.

[0009] In this embodiment of the invention, the first bearing assembly, the abutment member, and the fixing member are all circular in shape.

[0010] In this embodiment of the invention, the first bearing assembly is a bearing assembly that only bears radial loads, and the second bearing assembly is a bearing assembly that can bear both axial and radial loads simultaneously.

[0011] In this embodiment of the utility model, the motor structure further includes a cover plate, which is disposed at the second end of the housing, and the second end is opposite to the first end.

[0012] In this embodiment of the utility model, the cover plate and the second end of the housing are sealed together, and the second bearing assembly is sealed together with the first end of the housing.

[0013] In this embodiment of the invention, the sealing connection adopts a double sealing structure, which includes an inner O-shaped rubber ring and an outer labyrinth-shaped sealing ring, with the tortuous path of the sealing ring filled with hydrophobic gel.

[0014] In this embodiment of the utility model, the outer surface of the housing is provided with stepped heat dissipation fins, and a guide air channel is formed between adjacent heat dissipation fins; The thickness of the heat dissipation fins decreases gradually from the first end near the housing to the second end, and the spacing between adjacent heat dissipation fins increases.

[0015] On the other hand, in order to achieve the above objectives, this utility model embodiment also provides a robot, which is provided with the motor structure described in any of the above embodiments.

[0016] This utility model provides a motor structure and a robot having the motor structure. By sequentially mounting a first bearing assembly and a second bearing assembly on the drive end of the motor and fixing the second bearing assembly to the first end of the housing, the second bearing assembly can share the load, effectively offsetting the influence of external weight on the first bearing assembly inside the motor, avoiding the motor bearing the load, and thus ensuring that the motor operates in a good working condition. Attached Figure Description

[0017] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0018] Figure 1This is a schematic diagram of the first end of the motor structure provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of a second bearing assembly provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the second end of the motor structure provided in this embodiment of the utility model; The labels in the attached diagram are as follows: 100. Motor structure; 110. Motor; 120. Housing; 130. First bearing assembly; 140. Second bearing assembly; 150. Cover plate; 141. Fastener; 142. Abutment. Detailed Implementation

[0019] 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.

[0020] It should be noted that the directional terms used in this application, such as [up], [down], [front], [back], [left], [right], [inside], [outside], and [side], are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this application, and not for limiting this application. In the drawings, structurally similar units are represented by the same reference numerals. Furthermore, the thickness and shape in the accompanying drawings of this application do not reflect actual proportions, and are only intended to illustrate the embodiments of this application.

[0021] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0022] In this embodiment of the utility model, the motor is a device that converts electrical energy into mechanical energy. It uses an energized coil (i.e., the stator winding) to generate a rotating magnetic field, which acts on the rotor (such as a squirrel-cage closed aluminum frame) to form a magnetoelectric rotational torque, and outputs rotational power through the motor shaft.

[0023] With the development of society and the economy, the load on motors is also increasing. This places heavy-load demands on motors. However, existing motors typically only have one internal bearing to guide the rotation of the motor shaft. As the motor load increases, the force on the internal bearing also increases. Excessive load can easily cause the internal bearing to exceed its mirror load limit, resulting in the motor itself providing support for the load, affecting the motor's stability and service life.

[0024] To solve the above-mentioned technical problems, this utility model provides a motor structure 100 to eliminate the influence of external weight on the internal bearings of the motor, thereby ensuring that the motor can operate in a good working condition. The motor structure 100 will be described in detail below.

[0025] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the first end of the motor structure 100 provided in this embodiment of the present invention. Figure 2 This is a schematic diagram of a structure of the second bearing assembly 140 provided in an embodiment of the present invention, as shown below. Figure 1 and Figure 2 As shown, the motor structure 100 includes: a motor 110, a housing 120, a first bearing assembly 130, and a second bearing assembly 140; The housing 120 encloses the motor 110, with the drive end of the motor 110 exposed from the first end of the housing 120; the first bearing assembly 130 is sleeved on the drive end and embedded in the first end of the housing 120; the second bearing assembly 140 is fixedly connected to the first end of the housing 120 and is sleeved on the first bearing assembly 130.

[0026] In this embodiment, the motor structure 100 provided may further include a stator assembly (not shown in the figure) and a rotor assembly (not shown in the figure) disposed within the housing 120. The stator assembly is electrically connected to the power supply terminal of the motor 110, and the rotor assembly is connected to the drive terminal of the motor 110. Thus, when the stator assembly is energized, it drives the rotor assembly to rotate, thereby outputting rotational power through the drive terminal of the motor 110.

[0027] In some embodiments, the shape of the housing 120 provided in this embodiment can be set according to the shape of the motor 110, or according to the shape of the first bearing assembly 130 and the second bearing assembly 140, as long as it can wrap around the motor 110 and be connected to the first bearing assembly 130 and the second bearing assembly 140, no specific limitation is made here.

[0028] Optionally, the first bearing assembly 130 provided in this embodiment can be a bearing assembly that only bears radial loads, such as a deep groove ball bearing, which is mainly used to support the radial load of the motor 110 shaft. The second bearing assembly 140 is a bearing assembly that can simultaneously bear axial and radial loads, such as a tapered roller bearing, angular contact ball bearing, and crossed roller bearing. It can support not only the radial load of the motor 110 shaft but also the axial load, making it suitable for various heavy and complex working conditions that the robot needs to handle. Specifically, both the first bearing assembly 130 and the second bearing assembly 140 can be made of AL6061-T6 aluminum alloy, which can improve the load capacity of the motor structure 100 while also effectively controlling the overall quality, thus improving the safety and durability of the motor structure 100.

[0029] Furthermore, to increase the bearing area of ​​the second bearing assembly 140 and improve the stability of the supporting surface, the second bearing assembly 140 may also include an abutment member 142, which is sleeved on the first bearing assembly 130 and abuts against the first bearing assembly 130. The abutment member 142 allows the second bearing assembly 140 to be more stably supported on the first bearing assembly 130, thereby improving the stability of the entire motor structure 100.

[0030] Furthermore, to securely connect the second bearing assembly 140 to the first end of the housing 120, the second bearing assembly 140 may also include a fixing member 141. The fixing member 141 is sleeved on and abuts against the abutment member 142, and is simultaneously fixedly connected to the first end of the housing 120. In one embodiment of this invention, the fixing member 141 and the first end of the housing 120 can be fixedly connected by screws, thereby achieving a stable connection between the second bearing assembly 140 and the housing 120.

[0031] It is worth noting that, in order to make the motor structure 100 more compact and reduce its volume and air resistance, the first bearing assembly 130, the abutment member 142, and the fixing member 141 can all be circular in shape. Of course, depending on the actual application scenario and requirements, the shapes of these components can also be designed in other ways, as long as they can meet the stability and support requirements of the motor structure 100.

[0032] In addition to the structural features mentioned above, please refer to Figure 3 , Figure 3 This is a schematic diagram of the second end of the motor structure 100 provided in this embodiment of the present invention, as shown below. Figure 3 As shown, the motor structure 100 provided in this embodiment of the present invention may further include a cover plate 150, which is disposed at the second end of the housing 120, the second end being opposite to the first end. The cover plate 150 can protect the internal structure of the motor 110 from interference and damage from the external environment.

[0033] Meanwhile, in order to further improve the sealing performance of the motor structure 100, the cover plate 150 and the second end of the housing 120 can be sealed together, and the second bearing assembly 140 and the first end of the housing 120 can also be sealed together, thereby preventing dust, moisture and other impurities from entering the internal structure of the motor 110 and affecting the normal operation of the motor 110.

[0034] Specifically, the sealing connection can employ a double-sealing structure (not shown in the figure). This double-sealing structure may include an inner O-ring rubber ring and an outer labyrinth-type sealing ring. The winding path of the sealing ring can be filled with a hydrophobic gel. The O-ring rubber ring can block large particulate contaminants, and the labyrinth-type sealing ring can have one or more winding grooves, each filled with a hydrophobic gel, such as polydimethylsiloxane gel. This effectively enhances the sealing effect, preventing moisture and other liquids from penetrating into the motor structure 100, ensuring the stability and safety of the motor structure 100.

[0035] In some embodiments, in order to enhance the heat dissipation performance of the motor structure 100 provided in this embodiment, heat dissipation holes may also be provided on the housing 120. The heat dissipation holes can effectively dissipate the heat generated by the motor 110 during operation, prevent the motor 110 from overheating, and improve the operating stability and service life of the motor 110.

[0036] In other embodiments, to further improve the heat dissipation performance of the motor structure 100, the outer surface of the housing 120 may also be provided with stepped heat dissipation fins, forming airflow channels between adjacent heat dissipation fins. The heat dissipation fins increase the heat dissipation area of ​​the outer surface of the housing 120, improving heat dissipation efficiency. Simultaneously, the thickness of the heat dissipation fins gradually decreases from the first end near the housing 120 to the second end, and the spacing between adjacent heat dissipation fins gradually increases. This design allows the heat dissipation fins to reduce air resistance and lower energy consumption while ensuring heat dissipation performance. Furthermore, the edges of the heat dissipation fins may be rounded to effectively prevent airflow vortices and further reduce energy consumption.

[0037] Thus, by using the stepped heat dissipation fins provided in this embodiment, when the motor structure 100 is in operation, the hot air generated by the motor can be discharged more quickly along the widened spacing area, thereby effectively improving the heat dissipation performance of the motor structure 100.

[0038] In addition, the heat sink fins can be made of aluminum alloy with high thermal conductivity to improve heat dissipation efficiency. The surface of the heat sink fins can also be blackened to increase heat radiation capacity and further enhance heat dissipation.

[0039] In some embodiments, to further improve the stability and service life of the motor structure 100, a lubrication system (not shown in the figure) can be provided inside the motor structure 100. This lubrication system may include components such as an oil tank, an oil pump, and lubrication pipes. The oil tank stores lubricating oil, the oil pump pumps the lubricating oil to various parts requiring lubrication, and the lubrication pipes deliver the lubricating oil to various bearing assemblies and other components requiring lubrication. By providing a lubrication system, friction and wear inside the motor structure 100 can be effectively reduced, thereby improving the stability and service life of the motor structure 100.

[0040] On the other hand, to achieve precise control of the motor structure 100, a sensor assembly (not shown in the figure) can be installed on the motor structure 100. This sensor assembly may include a temperature sensor, a speed sensor, and a position sensor. The temperature sensor detects the temperature of the motor structure 100, the speed sensor detects the rotational speed of the motor shaft, and the position sensor detects the position of the motor shaft. By installing this sensor assembly, real-time monitoring and precise control of the motor structure 100 can be achieved, improving the operational stability and reliability of the motor structure 100.

[0041] Furthermore, to facilitate the maintenance and upkeep of the motor 110, both the first and second ends of the housing 120 can be detachably connected, for example, by means of bolts, clips, etc. In this way, when the motor 110 needs to be maintained and upkeep, the housing 120 can be easily disassembled to inspect and clean the inside of the motor 110.

[0042] This concludes the full description of the motor structure 100 provided in this embodiment.

[0043] In summary, this utility model embodiment provides a motor structure. By sequentially mounting a first bearing assembly and a second bearing assembly on the drive end of the motor, and fixing the second bearing assembly to the first end of the housing, the second bearing assembly can share the load, effectively offsetting the influence of external weight on the first bearing assembly inside the motor, avoiding the motor bearing the load, and thus ensuring that the motor operates in a good working condition. This motor structure not only has the advantages of simple structure, good stability, and strong support, but also improves the service life and reliability of the motor, and is widely used in various heavy-load applications.

[0044] In another embodiment, in order to solve the same technical problem, this utility model embodiment also provides a robot, which can be equipped with the motor structure described in any of the above embodiments, and can achieve the beneficial effects that any of the above embodiments can achieve. For specific implementation methods and beneficial effects, please refer to the corresponding embodiments above, which will not be repeated here.

[0045] In addition to the embodiments described above, this application may have other implementation methods. All technical solutions formed by equivalent substitutions or equivalent replacements fall within the protection scope claimed by this application.

[0046] Although the preferred embodiments have been disclosed above in this application, the above preferred embodiments are not intended to limit this application. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of this application. Therefore, the scope of protection of this application shall be determined by the scope defined in the claims.

Claims

1. A motor structure, characterized in that, include: Motor, housing, first bearing assembly, and second bearing assembly; The housing encloses the motor, and the drive end of the motor is exposed from the first end of the housing; The first bearing assembly is sleeved on the drive end, and the first bearing assembly is embedded in the first end of the housing; The second bearing assembly is fixedly connected to the first end of the housing, and the second bearing assembly is sleeved on the first bearing assembly.

2. The motor structure according to claim 1, characterized in that, The second bearing assembly includes a retainer and an abutment; The abutting member is sleeved on the first bearing assembly and abuts against the first bearing assembly; The fastener is fixedly connected to the first end of the housing and is sleeved on the abutment to abut against the abutment.

3. The motor structure according to claim 2, characterized in that, The fastener is fixedly connected to the first end of the housing by screws.

4. The motor structure according to claim 2, characterized in that, The first bearing assembly, the abutment member, and the fixing member are all circular in shape.

5. The motor structure according to claim 1, characterized in that, The first bearing assembly is a bearing assembly that only bears radial loads, and the second bearing assembly is a bearing assembly that can bear both axial and radial loads simultaneously.

6. The motor structure according to claim 1, characterized in that, The motor structure also includes a cover plate, which is disposed at the second end of the housing, and the second end is opposite to the first end.

7. The motor structure according to claim 6, characterized in that, The cover plate and the second end of the housing are sealed together, and the second bearing assembly is sealed together with the first end of the housing.

8. The motor structure according to claim 7, characterized in that, The sealing connection adopts a double sealing structure, which includes an inner O-ring rubber ring and an outer labyrinth-type sealing ring, with the tortuous path of the sealing ring filled with hydrophobic gel.

9. The motor structure according to claim 6, characterized in that, The outer surface of the housing is provided with stepped heat dissipation fins, and airflow channels are formed between adjacent heat dissipation fins; The thickness of the heat dissipation fins decreases gradually from the first end near the housing to the second end, and the spacing between adjacent heat dissipation fins increases.

10. A robot, characterized in that, The robot is equipped with a motor structure as described in any one of claims 1-9.

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