Vehicle-mounted robot

Abstract

The invention discloses a vehicle-mounted robot, and relates to the technical field of robots, the vehicle-mounted robot comprises a robot body, a driving assembly and a protection structure, and the driving assembly comprises a driving motor and a speed reducer; the protection structure comprises a first part and a second part which are movably connected, and the first part and the second part can be in transmission connection or relatively rotate; one of the two is fixedly connected with the robot body, and the other is fixedly connected with the speed reducer; the rotation starting torque of the robot body is smaller than the relative rotation torque of the first part and the second part, so that the driving motor can drive the robot body to rotate; the relative rotation torque of the first part and the second part is smaller than the rotation torque of a gear in the speed reducer, so that when the robot body is manually rotated, the first part and the second part can rotate relatively, and the robot body is limited to drive the speed reducer to rotate. According to the technical scheme, the service life of the vehicle-mounted robot is prolonged.

Description

Technical Field

[0001] This invention relates to the field of robotics, and in particular to a vehicle-mounted robot. Background Technology

[0002] A vehicle-mounted robot is a device installed on the central control screen inside a vehicle, capable of interacting with the driver. It typically includes a head that can rotate left and right and a display screen mounted on the head. To achieve the head rotation function, current technology usually uses a motor drive, with a reduction gear set configured at the motor output end to drive the head to rotate smoothly by reducing speed and increasing torque.

[0003] However, due to the high deceleration ratio, when the head is turned manually, the gears need to withstand a huge meshing load in order to transmit the torque step by step. If the meshing load exceeds the gears' load-bearing capacity, the gears will wear, thereby reducing the service life of the vehicle-mounted robot. Summary of the Invention

[0004] The main objective of this invention is to propose a vehicle-mounted robot that aims to improve the service life of the vehicle-mounted robot.

[0005] To achieve the above objectives, the present invention proposes a vehicle-mounted robot, comprising: The robot itself; The drive assembly includes a drive motor and a reducer that is driveably connected to the drive motor; and The protective structure includes a first part and a second part, which are movably connected to each other so that the first part and the second part can be driven or rotate relative to each other; one of the first part and the second part is fixedly connected to the robot body, and the other part is fixedly connected to the output end of the reducer. The starting torque for the rotation of the robot body is less than the torque of the relative rotation of the first part and the second part, so that the drive motor can drive the robot body to rotate through the reducer and the protection structure; The torque of the relative rotation of the first part and the second part is less than the torque of the gear rotation in the reducer, so that when the robot body is manually rotated, the first part or the second part fixedly connected to the robot body can rotate relative to the other, thereby limiting the robot body from driving the reducer to rotate.

[0006] In one embodiment, the first part includes a first body, the first body is provided with a first receiving slot, and the side of the first body away from the slot opening is fixedly connected to the robot body. The second part includes a second body on which a transmission component is mounted. At least a portion of the transmission component is housed in the first receiving groove. The side of the second body away from the transmission component is fixedly connected to the output end of the reducer. When the robot body is manually rotated, the first body rotates accordingly, and the wall of the first receiving slot pushes against the transmission component until the transmission component disengages from the first receiving slot, so that the first body rotates relative to the second body.

[0007] In one embodiment, the second body is provided with a second receiving groove, and an elastic member is installed in the second receiving groove. The transmission member is provided at one end of the elastic member away from the bottom of the groove. At least part of the transmission member is exposed in the second receiving groove and embedded in the first receiving groove. The elastic member is used to make the transmission member tend to be embedded in the first receiving groove.

[0008] In one embodiment, the transmission element is configured as a ball or a polyhedron, and the shape of the first receiving groove matches the shape of the transmission element.

[0009] In one embodiment, the transmission component is configured as a symmetrical or asymmetrical structure.

[0010] In one embodiment, multiple transmission components are provided, and the multiple transmission components are evenly spaced along the second body. Multiple first receiving slots are also provided, and each first receiving slot is used to correspond to one of the transmission components.

[0011] In one embodiment, the protective structure further includes a housing, wherein the first portion and the second portion are disposed within the housing and have a gap with the housing, such that both the first portion and the second portion can rotate relative to the housing, and the first portion and the second portion can rotate relative to each other.

[0012] In one embodiment, the housing is provided with a first through hole, the first part is provided with a first connecting hole, one end of the first intermediate shaft is fixedly connected to the robot body, and the other end passes through the first through hole and extends into the first connecting hole to be fixedly connected to the first part.

[0013] In one embodiment, the housing is provided with a second through hole, the second part is provided with a second connecting hole, and the output shaft of the reducer passes through the second through hole and extends into the second connecting hole to be fixedly connected to the second part.

[0014] In one embodiment, the housing is filled with a lubricating material.

[0015] The technical solution of this invention involves setting up a robot body, a drive assembly, and a protective structure in an onboard robot. The drive assembly includes a drive motor and a reducer connected to the drive motor. The protective structure includes a first part and a second part, which are movably connected to each other, allowing them to be driven together or rotate relative to each other. One of the first and second parts is fixedly connected to the robot body, and the other is fixedly connected to the output end of the reducer. The starting torque for the robot body's rotation is less than the torque for the relative rotation of the first and second parts, enabling the drive motor to drive the robot body to rotate via the reducer and the protective structure. The torque for the relative rotation of the first and second parts is less than the torque for the gears in the reducer, allowing either the first or second part fixedly connected to the robot body to rotate relative to the other when the robot body is manually rotated, thus limiting the robot body from driving the reducer. Therefore, by setting up the protective structure and the movably connected first and second parts within it, the first part can rotate relative to the second part when the robot body is manually rotated, preventing the manual rotational force from being transmitted to the gears in the reducer. In this way, on the one hand, a smaller force is required to rotate the robot body, which is beneficial to the user experience of the vehicle-mounted robot, while also avoiding wear on the gears caused by large rotational forces. On the other hand, it avoids the transmission of manual rotational force to the front gear in the reducer, thereby avoiding high rotational speeds and wear on the front gear. Furthermore, the relative rotation of the first and second parts ensures that even if external obstacles are encountered during manual rotation of the robot body, excessive instantaneous torque will not be transmitted to the gears, thus preventing gear damage and extending the service life of the vehicle-mounted robot. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the vehicle-mounted robot provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the protective structure in one embodiment; Figure 3 for Figure 2 A schematic diagram of another embodiment of the second part; Figure 4 for Figure 2A structural schematic diagram of another embodiment of the second part; Figure 5 for Figure 2 A top view of an embodiment of the second part of the text.

[0018] Explanation of icon numbers: 100. The robot itself; 200. Drive assembly; 210. Drive motor; 220. Reducer; 230. Output shaft; 300. Protective structure; 310. First part; 311. First body; 312. First receiving groove; 313. First connecting hole; 320. Second part; 321. Second body; 322. Transmission component; 323. Second receiving groove; 324. Elastic component; 325. Second connecting hole; 330. Housing; 331. First through hole; 332. Second through hole; 400, First intermediate axis.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0023] A vehicle-mounted robot is a device installed on the central control screen inside a vehicle, capable of interacting with the driver. It typically includes a head that can rotate left and right and a display screen mounted on the head. To achieve the head rotation function, current technology usually uses a motor drive, with a reduction gear set configured at the motor output end to drive the head to rotate smoothly by reducing speed and increasing torque.

[0024] However, due to the high reduction ratio, when the head is manually rotated, the gears must withstand a tremendous meshing load to transmit torque step by step. If the meshing load exceeds the gears' capacity, the gears will wear. If the manual rotation speed is too fast, the preceding gears will rotate at excessively high speeds, further accelerating gear wear. In addition, if external obstacles are encountered during rotation, the gear set will also be damaged due to instantaneous overload. All of these problems directly affect the reliability of the gear transmission system, reduce its service life, and impact the overall durability of the product and the user experience.

[0025] This invention proposes a vehicle-mounted robot.

[0026] Please see Figure 1 and Figure 2 In one embodiment of the present invention, the vehicle-mounted robot includes a robot body 100, a drive assembly 200 and a protective structure 300. The drive assembly 200 includes a drive motor 210 and a reducer 220 that is connected to the drive motor 210 in a transmission. The protective structure 300 includes a first part 310 and a second part 320, which are movably connected to each other so that the first part 310 and the second part 320 can be connected by transmission or rotate relative to each other; one of the first part 310 and the second part 320 is fixedly connected to the robot body 100, and the other part is fixedly connected to the output end of the reducer 220. The starting torque for the rotation of the robot body 100 is less than the torque of the relative rotation of the first part 310 and the second part 320, so that the drive motor 210 can drive the robot body 100 to rotate through the reducer 220 and the protection structure 300. The torque of the relative rotation of the first part 310 and the second part 320 is less than the torque of the gear rotation in the reducer 220, so that when the robot body 100 is manually rotated, the first part 310 or the second part 320 fixedly connected to the robot body 100 can rotate relative to the other, thereby limiting the robot body 100 from driving the reducer 220 to rotate.

[0027] Understandably, the robot body 100 can rotate relative to its mounting position to facilitate interaction between the vehicle-mounted robot and the user. Generally, the rotation of the robot body 100 is achieved electrically to enhance the technological feel and user experience. Specifically, the vehicle-mounted robot also includes a drive assembly 200, which comprises a drive motor 210 and a reducer 220. In one embodiment, the drive motor 210 is a DC brushed motor to reduce costs. Considering that the rotation speed of the robot body 100 should not be too fast and a certain torque is required for its rotation, a reducer 220 is generally connected to the output end of the drive motor 210. The reducer 220 is used to reduce the speed and increase the torque of the drive motor 210 to ensure the rotation effect of the robot body 100. The reducer 220 adopts any one or more of a gear set structure and a planetary gear set structure, wherein the gear set structure can be single-stage or multi-stage. Regardless of whether the reducer 220 adopts a gear set structure or a planetary gear set structure, the reducer 220 includes multiple gears.

[0028] Understandably, during normal use, the rotation of the robot body 100 is driven by the drive motor 210. If the robot body 100 is to be manually rotated, a significant force is required due to the high reduction speed of the reducer 220, which is detrimental to the user experience and interactivity of the vehicle-mounted robot. Furthermore, the large force applied to the robot body 100 can easily exceed the gear's bearing capacity, causing gear wear. Additionally, if the robot body 100 is rotated too quickly, the front gear in the reducer 220 will rotate rapidly, accelerating gear wear. Obstacles obstructing the rotation can also easily damage the gears, reducing their lifespan.

[0029] Therefore, the present invention includes a protective device in the vehicle-mounted robot. The protective device comprises a first part 310 and a second part 320 that are movably connected. One of the first part 310 and the second part 320 is fixedly connected to the robot body 100, and the other is fixedly connected to the output end of the reducer 220. The following description uses the example of the first part 310 being fixedly connected to the robot body 100 and the second part 320 being fixedly connected to the output end of the reducer 220. In some cases, the first part 310 and the second part 320 are drive-connected; in other cases, the first part 310 and the second part 320 can rotate relative to each other.

[0030] When the first part 310 and the second part 320 are connected in a transmission connection, the drive motor 210 and the reducer 220 are also connected in a transmission connection. The reducer 220 and the second part 320 are fixedly connected, the second part 320 and the first part 310 are connected in a transmission connection, and the first part 310 and the robot body 100 are fixedly connected. Thus, a force transmission path is formed between the drive component, the reducer 220, the second part 320, the first part 310, and the robot body 100. When the first part 310 and the second part 320 rotate relative to each other, the aforementioned force transmission path will be broken between the first part 310 and the second part 320.

[0031] When the robot body 100 is driven to rotate by the drive motor 210, it is understandable that for the drive motor 210 to drive the rotation of the robot body 100, the starting torque of the robot body 100's rotation must be less than the torque of the relative rotation of the first part 310 and the second part 320. Otherwise, only the second part 320 will rotate relative to the first part 310, and the robot body 100 will not rotate. At this time, the driving force of the drive motor 210 is reduced and increased in torque by the reducer 220, and then transmitted to the second part 320, and then from the second part 320 to the first part 310. The first part 310 and the second part 320 rotate synchronously, and then the force is transmitted to the robot body 100, causing the robot body 100 to rotate.

[0032] When the robot body 100 is manually rotated, it is understandable that, in order to prevent the manually applied rotational force from being transmitted to the gears of the reducer 220, the relative rotational torque of the first part 310 and the second part 320 must be less than the rotational torque of the gears in the reducer 220. For example, if the relative rotational torque of the first part 310 and the second part 320 is 18N, and the rotational torque of the gears in the reducer 220 is 20N, then when the manually applied torque reaches 18N, the first part 310 and the second part 320 will rotate relative to each other. The first part 310 will rotate relative to the second part 320 without driving the second part 320 to rotate, thereby preventing the gears in the reducer 220 from rotating. This achieves protection for the reducer 220 when the robot body 100 is manually rotated.

[0033] Understandably, when the robot body 100 is manually rotated, the drive motor 210 can be in a non-operating state. In this case, the second part 320 will not rotate, while the first part 310 will rotate, and there is no force transmission between them. Alternatively, the drive motor 210 can be in an operating state. In this case, both the second part 320 and the first part 310 will rotate, but their rotations are relative, and there is no force transmission between them.

[0034] The technical solution of the present invention involves setting a robot body 100, a drive assembly 200, and a protective structure 300 in an on-board robot. The drive assembly 200 includes a drive motor 210 and a reducer 220 that is driven and connected to the drive motor 210. The protective structure 300 includes a first part 310 and a second part 320, which are movably connected to each other so that the first part 310 and the second part 320 can be driven and connected or rotate relative to each other. One of the first part 310 and the second part 320 is fixedly connected to the robot body 100, and the other part is fixedly connected to the output end of the reducer 220. The starting torque for rotating the robot body 100 is less than the relative rotational torque of the first part 310 and the second part 320, so that the drive motor 210 can drive the robot body 100 to rotate through the reducer 220 and the protective structure 300. The relative rotational torque of the first part 310 and the second part 320 is less than the rotational torque of the gears in the reducer 220, so that when the robot body 100 is manually rotated, either the first part 310 or the second part 320, which is fixedly connected to the robot body 100, can rotate relative to the other, thereby limiting the robot body 100 from driving the reducer 220 to rotate. Thus, by setting up the protective structure 300, and by the movable connection between the first part 310 and the second part 320 in the protective structure 300, when the robot body 100 is manually rotated, the first part 310 can rotate relative to the second part 320, thereby preventing the manual rotational force from being transmitted to the gears in the reducer 220. In this way, on the one hand, a smaller force is required to rotate the robot body 100, which is beneficial to the user experience of the vehicle-mounted robot, and on the other hand, the wear of the gears is avoided due to the larger rotational force. On the other hand, manual rotation avoids the transmission of power to the front gear in the reducer 220, thereby preventing high rotational speeds and wear on the front gear. Furthermore, the relative rotation of the first part 310 and the second part 320 ensures that even if external obstacles are encountered during manual rotation of the robot body 100, instantaneous excessive torque will not be transmitted to the gears, thus preventing gear damage and improving the service life of the vehicle-mounted robot.

[0035] Please see Figure 1 and Figure 2 In an embodiment of the present invention, the first part 310 includes a first body 311, the first body 311 is provided with a first receiving groove 312, and the side of the first body 311 away from the opening of the first receiving groove 312 is fixedly connected to the robot body 100. The second part 320 includes a second body 321, on which a transmission component 322 is mounted. At least a portion of the transmission component 322 is housed in a first receiving groove 312. The side of the second body 321 away from the transmission component 322 is fixedly connected to the output end of the reducer 220. When the robot body 100 is manually rotated, the first body 311 rotates accordingly, and the wall of the first receiving groove 312 pushes against the transmission member 322 until the transmission member 322 disengages from the first receiving groove 312, so that the first body 311 rotates relative to the second body 321.

[0036] Specifically, in the embodiment shown in the figures of this invention, the first part 310 includes a first body 311, and the second part 320 includes a second body 321. It is understood that when the drive motor 210 drives the robot body 100, the first part 310 and the second part 320 need to rotate synchronously; when the robot body 100 is manually driven, the first part 310 and the second part 320 need to rotate relative to each other. In one embodiment, the first part 310 and the second part 320 are approximately cylindrical in shape to facilitate their rotation.

[0037] The first body 311 is provided with a first receiving groove 312, which extends along the axial direction of the first body 311, and the opening of the first receiving groove 312 faces the second body 321. The other side of the first body 311 with the first receiving groove 312 is used for fixed connection with the robot body 100.

[0038] The second body 321 is provided with a transmission component 322, at least a portion of which can be accommodated within the first receiving groove 312. Thus, the contact between the transmission component 322 and the first receiving groove 312 enables transmission between the second part 320 and the first part 310. When the robot body 100 is driven by the drive motor 210, the power from the drive motor 210 is reduced and amplified by the reducer 220 before being transmitted to the second body 321, then to the transmission component 322, then to the first receiving groove 312, then to the first body 311, and finally to the robot body 100, thereby enabling the rotation of the robot body 100.

[0039] When the robot body 100 is manually driven, force is applied to the first body 311, causing the wall of the first storage slot to push against the transmission member 322. As the rotational force continues to be applied, the first storage slot moves relative to the transmission member 322 until the transmission member 322 and the first storage slot are separated, thereby causing the transmission connection between the first part 310 and the second part 320 to fail, allowing the first part 310 to rotate relative to the second part 320.

[0040] The way in which the transmission component 322 and the first receiving groove 312 separate can be that the first body 311 remains stationary while the second body 321 moves axially relative to the first body 311 to move away from the first body 311; or the second body 321 remains stationary while the first body 311 moves axially relative to the second body 321 to move away from the second body 321; or both the first body 311 and the second body 321 remain stationary while the transmission component 322 moves in a direction away from the first receiving groove 312.

[0041] Please see Figure 2 In an embodiment of the present invention, a second receiving groove 323 is provided on the second body 321, and an elastic member 324 is installed in the second receiving groove 323. A transmission member 322 is provided at one end of the elastic member 324 away from the bottom of the groove. At least part of the transmission member 322 is exposed in the second receiving groove 323 and embedded in the first receiving groove 312. The elastic member 324 is used to make the transmission member 322 tend to be embedded in the first receiving groove 312.

[0042] Specifically, in one embodiment, the second body 321 is provided with a second receiving groove 323, which extends axially along the second body 321, and the opening of the second receiving groove 323 faces the first body 311. An elastic member 324 is installed in the second receiving groove 323, and a transmission member 322 is installed at the end of the elastic member 324 away from the bottom of the second receiving groove 323. At least a portion of the transmission member 322 is exposed in the second receiving groove 323, and at least a portion of the transmission member 322 can be received in the first receiving groove 312 to realize the transmission connection between the first part 310 and the second part 320.

[0043] When the robot body 100 is manually rotated, the manual rotation force is transmitted to the first body 311. The wall of the first receiving groove 312 applies force to the transmission member 322, causing the transmission member 322 to compress the elastic member 324 downwards. The contraction of the elastic member 324 allows the transmission member 322 to retract into the second receiving groove 323. When the first receiving groove 312 and the transmission member 322 disengage, the first body 311 rotates relative to the second body 321, thereby realizing the rotation of the first part 310 relative to the second part 320. When the manual rotation force is removed, the transmission member 322 moves upward under the deformation force of the elastic member 324. When the transmission member 322 is embedded in the first receiving groove 312, the transmission connection between the first part 310 and the second part 320 is realized.

[0044] In one embodiment, the elastic element 324 is configured as a spring, sheet, or the like. In another embodiment, one end of the elastic element 324 can be fixed to the bottom of the second receiving groove 323 by welding, hooking, or other means. The transmission element 322 can be fixed to the other end of the elastic element 324 by welding, snapping, or other means.

[0045] Please see Figure 2 and Figure 3 In embodiments of the present invention, the transmission member 322 is configured as a ball or a polyhedron, and the shape of the first receiving groove 312 matches the shape of the transmission member 322. It is understood that the structure of the transmission member 322 can be of any shape. In one embodiment, the transmission member 322 is a ball. In another embodiment, the transmission member 322 is a triangular prism. It is understood that the shape of the first receiving groove 312 matches the shape of the transmission member 322 to achieve a transmission connection between the first portion 310 and the second portion 320 when the transmission member 322 is received within the first receiving groove 312.

[0046] Please see Figures 2 to 4 In embodiments of the present invention, the transmission component 322 is configured with a symmetrical or asymmetrical structure. It is understood that the rotation of the robot body 100 can be divided into clockwise rotation and counterclockwise rotation. When the transmission component 322 has a symmetrical structure, the rotational torque of the robot body 100 is the same in both directions. When the transmission component 322 has an asymmetrical structure, the rotational torque of the robot body 100 is different in both directions. The symmetry of the transmission component 322 refers to its left-right symmetry along the vertical direction of the vehicle-mounted robot. A symmetrical structure can be a ball bearing, an equilateral triangle, or a non-equilateral triangle, etc.

[0047] Please see Figure 2 and Figure 5 In an embodiment of the present invention, multiple transmission members 322 are provided, and the multiple transmission members 322 are evenly spaced along the second body 321. Multiple first receiving grooves 312 are also provided, and a first receiving groove 312 is used to correspond to a transmission member 322.

[0048] Specifically, multiple transmission components 322 are provided, and these multiple transmission components 322 are evenly spaced along the circumference of the second body 321. Correspondingly, multiple first receiving slots 312 are provided on the first body 311, and these multiple first receiving slots 312 are evenly spaced along the circumference of the first body 311. When the first part 310 and the second part 320 are connected in transmission, one transmission component 322 is received in one first receiving slot 312.

[0049] Understandably, the number of transmission components 322 and the number of elastic components 324 are the same. When there are more transmission components 322, the number of elastic components 324 is correspondingly more. The larger number of elastic components 324 results in a larger relative rotational torque between the first part 310 and the second part 320. Thus, the number of transmission components 322 and elastic components 324 can be adjusted according to torque requirements.

[0050] Simultaneously, it is understandable that when the first body 311 rotates relative to the second body 321, a transmission component 322 disengages from a first receiving slot 312 and inserts into another first receiving slot 312, then disengages from that first receiving slot 312 and inserts into the next receiving slot, and so on in a cycle. When the transmission component 322 inserts into the next first receiving slot 312, the insertion of the transmission component 322 will produce a "clicking" sound, which can indicate the relative rotational position of the first part 310 and the second part 320.

[0051] Please see Figure 1 and Figure 2 In an embodiment of the present invention, the protective structure 300 further includes a housing 330, with a first part 310 and a second part 320 disposed within the housing 330 and having a gap with the housing 330, such that both the first part 310 and the second part 320 can rotate relative to the housing 330, and the first part 310 and the second part 320 can rotate relative to each other.

[0052] Specifically, the housing 330 has a cavity, and both the first part 310 and the second part 320 are installed within the cavity, providing installation positions for the first part 310 and the second part 320. To ensure the rotation of the first part 310 and the second part 320, there is a gap between the first part 310 and the cavity wall. Simultaneously, the housing 330 also provides axial restraint for the first part 310 and the second part 320, preventing them from moving axially away from each other, thus preventing separation between the transmission member 322 and the first receiving groove 312, and ensuring the transmission connection between the first part 310 and the second part 320.

[0053] Please see Figure 1 and Figure 2 In an embodiment of the present invention, the housing 330 is provided with a first through hole 331, the first part 310 is provided with a first connecting hole 313, one end of the first intermediate shaft 400 is fixedly connected to the robot body 100, and the other end passes through the first through hole 331 and extends into the first connecting hole 313 to be fixedly connected to the first part 310.

[0054] Specifically, in one embodiment, the robot body 100 is fixedly connected to the first part 310 via a first intermediate shaft 400. The first body 311 of the first part 310 is provided with a first connecting hole 313. The lower end of the first intermediate shaft 400 is fixedly connected to the first body 311, and the upper end of the first intermediate shaft 400 is fixedly connected to the robot body 100. More specifically, the upper end of the first intermediate shaft 400 can be fixedly connected to the robot body 100 by welding or other means, and the lower end of the first intermediate shaft 400 passes through a first through hole 331 and extends into the first connecting hole 313. The fixed connection between the first intermediate shaft 400 and the first body 311 is achieved through splines, interference fits, or welding. Simultaneously, there is a gap between the first intermediate shaft 400 and the first through hole 331, allowing the first intermediate shaft 400 to rotate relative to the housing 330. Thus, a transmission connection between the robot body 100 and the first body 311 is achieved. Of course, in other embodiments, the first intermediate axis 400 may not be provided, and the robot body 100 may be directly fixed on the first part 310.

[0055] Please see Figure 1 and Figure 2 In an embodiment of the present invention, the housing 330 is provided with a second through hole 332, the second part 320 is provided with a second connecting hole 325, and the output shaft 230 of the reducer 220 passes through the second through hole 332 and extends into the second connecting hole 325 to be fixedly connected with the second part 320.

[0056] Specifically, the output end of the reducer 220 and the second part 320 are fixedly connected. In one embodiment, the lower end of the housing 330 is provided with a second through hole 332, and the lower end of the second body 321 of the second part 320 is provided with a second connecting hole 325, the second connecting hole 325 corresponding to the second through hole 332. The output shaft 230 of the reducer 220 passes through the second through hole 332 and extends into the second connecting hole 325, and the fixed connection between the output shaft 230 of the reducer 220 and the second body 321 is achieved by means of splines, interference fits, or welding. In one embodiment, the output shaft 230 of the reducer 220 is also the output shaft 230 of the drive motor 210.

[0057] In an embodiment of the present invention, the housing 330 is filled with a lubricating material. This lubricating material facilitates the rotation of the first portion 310 and the second portion 320 relative to the housing 330, and also facilitates the relative rotation of the first portion 310 and the second portion 320. In one embodiment, the lubricating material is grease, lubricating oil, or the like.

[0058] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A vehicle-mounted robot, characterized in that, include: The robot itself; The drive assembly includes a drive motor and a reducer that is drive-connected to the drive motor. as well as The protective structure includes a first part and a second part, which are movably connected to each other so that the first part and the second part can be driven or rotate relative to each other; one of the first part and the second part is fixedly connected to the robot body, and the other part is fixedly connected to the output end of the reducer. The starting torque for the rotation of the robot body is less than the torque of the relative rotation of the first part and the second part, so that the drive motor can drive the robot body to rotate through the reducer and the protection structure; The torque of the relative rotation of the first part and the second part is less than the torque of the gear rotation in the reducer, so that when the robot body is manually rotated, the first part or the second part fixedly connected to the robot body can rotate relative to the other, thereby limiting the robot body from driving the reducer to rotate.

2. The vehicle-mounted robot as described in claim 1, characterized in that, The first part includes a first body, which has a first receiving slot, and the side of the first body away from the slot opening is fixedly connected to the robot body. The second part includes a second body on which a transmission component is mounted. At least a portion of the transmission component is housed in the first receiving groove. The side of the second body away from the transmission component is fixedly connected to the output end of the reducer. When the robot body is manually rotated, the first body rotates accordingly, and the wall of the first receiving slot pushes against the transmission component until the transmission component disengages from the first receiving slot, so that the first body rotates relative to the second body.

3. The vehicle-mounted robot as described in claim 2, characterized in that, The second body is provided with a second receiving groove, and an elastic member is installed in the second receiving groove. The transmission member is provided at the end of the elastic member away from the bottom of the groove. At least part of the transmission member is exposed in the second receiving groove and embedded in the first receiving groove. The elastic member is used to make the transmission member tend to be embedded in the first receiving groove.

4. The vehicle-mounted robot as described in claim 2, characterized in that, The transmission component is configured as a ball or a polyhedron, and the shape of the first receiving groove matches the shape of the transmission component.

5. The vehicle-mounted robot as described in claim 2, characterized in that, The transmission component is configured as a symmetrical or asymmetrical structure.

6. The vehicle-mounted robot as described in claim 2, characterized in that, The transmission components are provided in multiple ways, and the multiple transmission components are evenly spaced along the second body. The first receiving slot is also provided in multiple ways, and each first receiving slot is used to correspond to one of the transmission components.

7. The vehicle-mounted robot as described in claim 1, characterized in that, The protective structure further includes a housing, wherein the first part and the second part are disposed within the housing and have a gap with the housing, so that both the first part and the second part can rotate relative to the housing, and the first part and the second part can rotate relative to each other.

8. The vehicle-mounted robot as described in claim 7, characterized in that, The housing has a first through hole, the first part has a first connecting hole, one end of the first intermediate shaft is fixedly connected to the robot body, and the other end passes through the first through hole and extends into the first connecting hole to be fixedly connected to the first part.

9. The vehicle-mounted robot as described in claim 7, characterized in that, The housing has a second through hole, and the second part has a second connecting hole. The output shaft of the reducer passes through the second through hole and extends into the second connecting hole to be fixedly connected to the second part.

10. The vehicle-mounted robot as described in claim 7, characterized in that, The housing is filled with lubricating material.

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