Transmission device and transmission system

Abstract

The utility model relates to the technical field of transmission device equipment, and provides a transmission device and a transmission system, and the transmission device comprises a shell, a planet carrier, a worm gear, a first gear component, a planet gear, a second gear component and a worm. The shell is provided with the containing cavity and the inner gear ring, the planet carrier is rotationally matched with the containing cavity, and the connecting piece connected with an external device is arranged; the second gear component is rotationally installed on the planet carrier, the first tooth section is arranged to be a worm gear and meshed with the worm in an intersecting mode, the second tooth section is meshed with the third tooth section in an intersecting mode, and the fourth tooth section is meshed with the inner gear ring, so that the second gear component can drive the planet carrier to rotate relative to the inner gear ring. One of the planet carrier and the worm can be an input component of the transmission device, and the other one can be an output component of the transmission device; the size of the transmission device is reduced, so that the transmission device can be applied to some telescopic pieces with limited cross sectional areas, has reverse self-locking capacity and can bear larger loads.

Description

Technical Field

[0001] This utility model relates to the field of transmission device equipment technology, specifically to a transmission device and transmission system. Background Technology

[0002] To meet the needs of industry development and customers, more and more furniture can be adjusted in multiple directions.

[0003] For example, transmission devices (such as gearboxes or transmission mechanisms) can be installed in electric height-adjustable desks, smart wardrobes, smart bookshelves, and electric curtains to adjust their height. These transmission devices typically use worm gear drives, which offer a higher transmission ratio and power output, and also possess a certain degree of self-locking capability, allowing for effective load handling.

[0004] However, in related transmission technologies, worm gear drives make the transmission device quite large, making it impossible to integrate them into some telescopic components with limited cross-sectional areas, such as the telescopic legs of furniture or the telescopic rods of electric curtains. Utility Model Content

[0005] In view of the above-mentioned defects in the prior art, the present invention provides a transmission device to solve at least one of the above-mentioned technical defects in the prior art, so that the size of the transmission device can be made smaller, and it can be applied in some telescopic parts with limited cross-sectional area, and it has a reverse self-locking capability and can bear a larger load.

[0006] The second aspect of this utility model provides a transmission system.

[0007] To achieve the objective of this utility model, a transmission device is provided, comprising:

[0008] The housing has a receiving cavity and an internal gear ring;

[0009] A worm gear, one end of which is inserted into the receiving cavity and is rotatable relative to the housing;

[0010] A planetary carrier is installed in the receiving cavity and rotatably engages with the housing; the planetary carrier is provided with a connector for connecting to external devices.

[0011] The first gear component includes a first tooth segment and a second tooth segment that are coaxially driven. The first tooth segment is a worm gear that meshes with the worm.

[0012] The second gear component is rotatably mounted on the planetary carrier. The second gear component includes a third tooth segment and a fourth tooth segment that are coaxially driven. The third tooth segment meshes with the second tooth segment. The axis of rotation of the second gear component is parallel to the axis of the worm. The fourth tooth segment is a planetary gear that meshes with the internal gear ring. The second gear component drives the planetary carrier to rotate relative to the internal gear ring.

[0013] One of the planetary carrier and the worm gear is the input component of the transmission device, and the other is the output component of the transmission device.

[0014] Preferably, the transmission device includes two or more first gear components and the same number of second gear components as the first gear components, with the first gear components and the second gear components corresponding to each other. The worm is clamped between the first tooth segments of the two or more first gear components, and the fourth tooth segments of the two or more second gear components are spaced and fitted on the internal gear ring.

[0015] Preferably, the first gear component is rotatably mounted on the planet carrier, and the rotation axis of the planet carrier is parallel to or coaxial with the axis of the worm.

[0016] Preferably, the planetary carrier is provided with a support member along its own axial direction;

[0017] The worm gear meshes perpendicularly with the worm.

[0018] The second tooth segment meshes perpendicularly with the third tooth segment, and both the second tooth segment and the third tooth segment are straight bevel gears.

[0019] Preferably, the support member includes a first support member and a second support member; the worm gear includes a first worm gear and a second worm gear, the first worm gear being rotatably connected to the first support member via a first worm gear shaft, and the second worm gear being rotatably connected to the second support member via a second worm gear shaft;

[0020] The input spur bevel gear includes a first input spur bevel gear and a second input spur bevel gear, wherein the first input spur bevel gear is disposed on the first worm gear shaft and the second input spur bevel gear is disposed on the second worm gear shaft;

[0021] The planetary gear includes a first planetary gear and a second planetary gear. The first planetary gear is rotatably connected to the planet carrier via a first planetary gear shaft, and the second planetary gear is rotatably connected to the planet carrier via a second planetary gear shaft.

[0022] The output spur bevel gear includes a first output spur bevel gear and a second output spur bevel gear, wherein the first output spur bevel gear is disposed on the first planetary gear shaft and the second output spur bevel gear is disposed on the second planetary gear shaft;

[0023] The worm gear is driven to connect with the first worm wheel and the second worm wheel.

[0024] Preferably, the first support member and the second support member are arranged symmetrically.

[0025] The first worm gear and the second worm gear are arranged symmetrically at the center, and the first input spur bevel gear and the second input spur bevel gear are arranged symmetrically at the center.

[0026] Preferably, the planetary carrier is further provided with a first fixing column and a second fixing column.

[0027] The first end of the first worm gear shaft is disposed on the first support member, and the second end of the first worm gear shaft is disposed on the first fixed post.

[0028] The first end of the second worm gear shaft is located on the second support member, and the second end of the second worm gear shaft is located on the second fixed column.

[0029] Preferably, the planetary carrier further includes a top support and a bottom support.

[0030] The planetary carrier is rotatably connected to the housing via the base support. The top support is provided with a connecting member. The worm gear passes through the base support and is driven by the worm wheel.

[0031] The first end of the first planetary gear shaft is disposed on the top bracket, and the second end of the first planetary gear shaft is disposed on the first fixed post.

[0032] The first end of the second planetary gear shaft is located on the top bracket, and the second end of the second planetary gear shaft is located on the second fixed column.

[0033] Preferably, the planetary carrier is further provided with a first rib and a second rib.

[0034] The first end of the first rib is fixedly connected to the first planetary gear shaft, and the second end of the first rib is fixed to the second support member.

[0035] The first end of the second rib is fixedly connected to the second planetary gear shaft, and the second end of the second rib is fixed to the first support member.

[0036] A second aspect of this invention provides a transmission system, which includes a drive motor and the aforementioned transmission device.

[0037] The drive motor is connected to the worm gear drive.

[0038] The beneficial effects of this utility model are as follows:

[0039] The transmission device provided by this utility model has a receiving cavity and an internal gear ring on the housing, and a planetary carrier is rotatably fitted into the receiving cavity of the housing. The planetary carrier is provided with a connecting member for connecting to external devices. The first gear component includes a first tooth segment and a second tooth segment that coaxially drive each other. The second tooth segment includes a third tooth segment and a fourth tooth segment that coaxially rotate. The second gear component is rotatably mounted on the planetary carrier. The first tooth segment is set as a worm gear and meshes with a worm. The second tooth segment meshes with the third tooth segment, and the fourth tooth segment meshes with the internal gear ring. This allows the second gear component to drive the planetary carrier to rotate relative to the internal gear ring. One of the planetary carrier and the worm can be the input component of the transmission device, and the other can be the output component of the transmission device. This reduces the size of the transmission device, allowing it to be used in some telescopic components with limited cross-sectional area. It also has a reverse self-locking capability and can bear a larger load.

[0040] The transmission system provided by this utility model, because it includes the aforementioned transmission device, inevitably possesses all the advantages of that device. That is, when applied to the adjustment of furniture or electric curtains, the transmission system is smaller in size, has a reverse self-locking capability, and can bear a larger load. Attached Figure Description

[0041] The above and other objects, features, and advantages of this utility model will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this application.

[0042] Figure 1 This is a schematic diagram of the overall structure of the transmission device provided in an embodiment of the present utility model;

[0043] Figure 2 for Figure 1 A schematic diagram of the structure after cutting through part of the shell;

[0044] Figure 3 for Figure 2 A diagram from another perspective;

[0045] Figure 4 for Figure 3 A diagram from another perspective;

[0046] Figure 5 A schematic diagram of the transmission device provided in this embodiment of the utility model after removing the planetary carrier and the sectioned housing;

[0047] Figure 6This is a schematic diagram of the planetary carrier in the transmission device provided in an embodiment of the present utility model;

[0048] Figure 7 This is a schematic diagram of the transmission device provided in an embodiment of the present invention after the planetary carrier has been removed.

[0049] In the picture:

[0050] 100. Shell; 110. Receiving cavity; 120. Internal gear ring;

[0051] 200. Planetary carrier; 210. Support member; 211. First support member; 212. Second support member; 220. First fixing post; 230. Second fixing post; 240. Top bracket; 241. Connector; 250. Bottom bracket; 260. First rib; 270. Second rib;

[0052] 300, worm gear; 310, first worm gear; 311, first worm gear shaft; 320, second worm gear; 321, second worm gear shaft;

[0053] 400. Input straight bevel gear; 410. First input straight bevel gear; 420. Second input straight bevel gear;

[0054] 500, Planetary gear; 510, First planetary gear; 511, First planetary gear shaft; 520, Second planetary gear; 521, Second planetary gear shaft;

[0055] 600, Output straight bevel gear; 610, First output straight bevel gear; 620, Second output straight bevel gear;

[0056] 700, worm gear;

[0057] 800. Bearings. Detailed Implementation

[0058] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0059] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this applies. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0061] The following is combined Figures 1 to 7 The embodiments of this utility model will be described below. It should be understood that the following description is merely an illustrative embodiment of this utility model and does not constitute any limitation on this utility model.

[0062] Combination Figures 1 to 7 An embodiment of this utility model provides a transmission device, which includes a housing 100, a planetary carrier 200, a worm gear 300, a first gear component, a planetary gear 500, a second gear component, and a worm 700.

[0063] The housing 100 is provided with a receiving cavity 110, and an internal gear ring 120 is also provided inside the housing 100. In this embodiment, the internal gear ring 120 can be provided at one end of the housing 100. The end where the internal gear ring 120 is located is the output end of the transmission device, and the end where the internal gear ring 120 is not provided is the input end. The central axis of the internal gear ring 120 coincides with the central axis of the housing 100.

[0064] The planetary carrier 200 is installed within the receiving cavity 110 and rotatably engages with the housing 100. The planetary carrier 200 also has a connector 241 for connecting to external devices. A support member 210 is provided along the axial direction of the planetary carrier 200, allowing the support member 210 to bear the axial load on the transmission device. The support member 210 can serve as a support column. In this embodiment, the central axis of the planetary carrier 200 coincides with the central axis of the housing 100.

[0065] The first gear component includes a first tooth segment and a second tooth segment that are coaxially driven. The first tooth segment can be a worm gear 300 that meshes with the worm 700. Of course, the worm gear 300 and the worm 700 can mesh perpendicularly, and their self-locking function can be used to improve the load capacity of the transmission device.

[0066] The second gear component is rotatably mounted on the planetary carrier 200. The second gear component includes a third and fourth toothed segment that mesh coaxially. The third toothed segment intersects and meshes with the second toothed segment. The axis of rotation of the second gear component is parallel to the axis of the worm gear 700. The fourth toothed segment can be a planetary gear 500, and it meshes with the internal gear ring 120. The second gear component drives the planetary carrier 200 to rotate relative to the internal gear ring 120. The perpendicular meshing of the third and second toothed segments allows for a smaller rotating structure between the first and second gear components, thus reducing the overall size of the transmission device.

[0067] The first gear component is rotatably mounted on the planet carrier 200. The worm gear 300 is rotatably connected to the planet carrier 200, and the axial direction of the worm gear 300 is perpendicular to the axial direction of the planet carrier 200.

[0068] The rotation axis of the planet carrier 200 is parallel or coaxial with the axis of the worm gear 700. That is, the planet gear 500 is rotatably connected to the planet carrier 200, and the axial direction of the planet gear 500 is parallel to the axial direction of the planet carrier 200. The planet gear 500 is meshed with the internal gear ring 120. When the internal gear ring 120 is fixed and the planet gear 500 is driven to rotate, the planet carrier 200 can rotate around its own central axis.

[0069] Of course, either the planet carrier 200 or the worm gear 700 can be the input component of the transmission device, and the other can be the output component of the transmission device.

[0070] In this embodiment, the worm gear 700 can be used as an input component and the planet carrier 200 as an output component. When the worm gear 700 rotates, it can drive the worm wheel 300 to rotate, which in turn drives the second and third tooth segments to rotate, thereby driving the planet gear 500 to rotate and causing the planet carrier 200 to rotate relative to the internal gear ring 120.

[0071] In other embodiments of this utility model, the planet carrier 200 can be used as an input component, and the worm gear 700 can be used as an output component. When the planet carrier 200 rotates, it drives the planet gear 500 to rotate relative to the internal gear ring 120, thereby driving the third tooth segment and the second tooth segment to rotate, and driving the worm wheel 300 and the worm gear 700 to rotate.

[0072] The transmission device provided in this embodiment may further include two or more first gear components and the same number of second gear components as the first gear components. The first gear components and the second gear components are matched one-to-one. The worm 700 is clamped between the first tooth segments of the two or more first gear components, and the fourth tooth segments of the two or more second gear components are matched at intervals on the internal gear ring.

[0073] The second and third tooth segments mesh perpendicularly, and both the second and third tooth segments are straight bevel gears.

[0074] Specifically, the first tooth segment can be a worm gear 300, which includes a first worm gear 310 and a second worm gear 320; the second tooth segment can be an input spur bevel gear 400, which includes a first input spur bevel gear 410 and a second input spur bevel gear 420; and the third tooth segment can be an output spur bevel gear 600, which includes a first output spur bevel gear 610 and a second output spur bevel gear 620.

[0075] The input spur bevel gear 400 is coaxially connected to the worm gear 300, so that the input spur bevel gear 400 can rotate synchronously with the worm gear 300.

[0076] The output spur bevel gear 600 is coaxially connected to the planetary gear 500, and the output spur bevel gear 600 is perpendicularly meshed with the input spur bevel gear 400.

[0077] One end of the worm 700 is inserted into the receiving cavity 110 and can rotate relative to the housing 100. The worm 700 is driven to the worm wheel 300, so that when the worm 700 rotates, it drives the worm wheel 300 to rotate. The input spur bevel gear 400 also rotates synchronously with the worm wheel 300 and drives the output spur bevel gear 600, which meshes with the input spur bevel gear 400. The planetary gear 500 rotates synchronously with the output spur bevel gear 600. When the internal gear ring 120 is fixed, the planetary carrier 200 can rotate around its own central axis, realizing that the rotational power is input from the worm 700 and output from the planetary carrier 200. In this embodiment, the axial direction of the worm 700 is perpendicular to the axial direction of the worm wheel 300, and the axial direction of the worm 700 coincides with the central axis of the housing 100, so that the worm wheel 300 and the worm 700 have a self-locking function, improving the load-bearing capacity of the transmission device.

[0078] It is understood that the transmission device provided in the embodiments of this utility model, by providing a receiving cavity and an internal gear ring on the housing, rotatably fits the planetary carrier into the receiving cavity of the housing, and provides a connecting member on the planetary carrier for connection with external devices; the first gear component includes a first tooth segment and a second tooth segment that coaxially drive each other, the second tooth segment including a third tooth segment and a fourth tooth segment that coaxially rotate; the second gear component is rotatably mounted on the planetary carrier, and the first tooth segment is set as a worm gear and meshes with a worm, the second tooth segment meshes with the third tooth segment, and the fourth tooth segment meshes with the internal gear ring, so that the second gear component can drive the planetary carrier to rotate relative to the internal gear ring, and one of the planetary carrier and the worm can be the input component of the transmission device, and the other can be the output component of the transmission device; the volume of the transmission device is reduced, so that the transmission device can be applied in some telescopic components with limited cross-sectional area, and it has a reverse self-locking capability and can bear a larger load.

[0079] In addition, a support member 210 is provided on the planetary carrier 200. The support member 210 extends along the axial direction of the planetary carrier 200, which can further improve the load capacity of the planetary carrier 200 in the axial direction. When the transmission device is installed on furniture or electric curtains, even if the furniture or electric curtains are under load, the planetary carrier 200 can withstand the load, and the transmission device will not fail even if it is under pressure. The worm gear 300 and worm 700 can also drive the planetary carrier 200 to rotate normally, ensuring the normal lifting and lowering of the furniture and avoiding the problem of furniture collapsing or electric curtains falling and causing safety accidents.

[0080] Specifically, in combination Figures 2 to 6 In order to further improve the load capacity of the transmission device, in some embodiments of the present invention, the support member 210 includes a first support member 211 and a second support member 212, and the transmission device also includes a first worm gear shaft 311, a second worm gear shaft 321, a first planetary gear shaft 511 and a second planetary gear shaft 521.

[0081] The worm gear 300 includes a first worm gear 310 and a second worm gear 320. The first worm gear 310 is rotatably connected to the first support member 211 via a first worm gear shaft 311, and the second worm gear 320 is rotatably connected to the second support member 212 via a second worm gear shaft 321.

[0082] The input spur bevel gear 400 includes a first input spur bevel gear 410 and a second input spur bevel gear 420. The first input spur bevel gear 410 is disposed on the first worm gear shaft 311, and the second input spur bevel gear 420 is disposed on the second worm gear shaft 321.

[0083] The planetary gear 500 includes a first planetary gear 510 and a second planetary gear 520. The first planetary gear 510 is rotatably connected to the planet carrier 200 via a first planetary gear shaft 511, and the second planetary gear 520 is rotatably connected to the planet carrier 200 via a second planetary gear shaft 521.

[0084] The output spur bevel gear 600 includes a first output spur bevel gear 610 and a second output spur bevel gear 620. The first output spur bevel gear 610 is disposed on the first planetary gear shaft 511, and the second output spur bevel gear 620 is disposed on the second planetary gear shaft 521.

[0085] The worm 700 is driven to connect with the first worm wheel 310 and the second worm wheel 320.

[0086] When the worm gear 700 rotates, it can drive the first worm wheel 310 and the second worm wheel 320 to rotate, thereby driving the first input spur bevel gear 410 and the second input spur bevel gear 420 to rotate synchronously. The first output spur bevel gear 610, which meshes with the first input spur bevel gear 410, and the second output spur bevel gear 620, which meshes with the second input spur bevel gear 420, can also rotate synchronously, thereby driving the first planetary gear 510 and the second planetary gear 520 to rotate. By driving two planetary gears 500 through one worm gear 700, the planet carrier 200 is rotated, making the rotation transmission more stable.

[0087] Combination Figure 6 Furthermore, in some embodiments of this utility model, the first support member 211 and the second support member 212 can be arranged symmetrically.

[0088] The first worm gear 310 and the second worm gear 320 are arranged symmetrically at their centers, as are the first input spur bevel gear 410 and the second input spur bevel gear 420. This makes the component arrangement of the transmission device more reasonable, the structure simpler, and the volume of the housing 100 smaller while ensuring load capacity.

[0089] In addition, in order to improve the stability of the worm gear 300 when rotating and reduce the failure rate of the transmission device, in some embodiments of this utility model, the planet carrier 200 is also provided with a first fixed column 220 and a second fixed column 230. The first fixed column 220 and the second fixed column 230 can both extend along the axial direction of the planet carrier 200 to form a height, so that the first fixed column 220 and the second fixed column 230 can also resist the load in the axial direction.

[0090] The first end of the first worm gear shaft 311 is disposed on the first support member 211, and the second end of the first worm gear shaft 311 is disposed on the first fixed column 220.

[0091] The first end of the second worm gear shaft 321 is disposed on the second support member 212, and the second end of the second worm gear shaft 321 is disposed on the second fixed column 230.

[0092] Combination Figures 2 to 6 In some embodiments of this utility model, the planetary carrier 200 further includes a top support 240 and a bottom support 250. The support member 210 supports the top support 240 and the bottom support 250, so that the planetary carrier 200 can better resist the relevant load when subjected to load in the axial direction, thereby further improving the load level of the transmission device.

[0093] The planetary carrier 200 is rotatably connected to the housing 100 via the bottom bracket 250, and the top bracket 240 is provided with a connector 241, which can be an output shaft. The worm gear 700 passes through the bottom bracket 250 and is driven to connect with the worm wheel 300.

[0094] The first end of the first planetary gear shaft 511 is disposed on the top bracket 240, and the second end of the first planetary gear shaft 511 is disposed on the first fixed column 220.

[0095] The first end of the second planetary gear shaft 521 is disposed on the top bracket 240, and the second end of the second planetary gear shaft 521 is disposed on the second fixed column 230.

[0096] The top support 240 can be a top plate, and the bottom support 250 is in the shape of a ring, which makes the load more flat and stable, and the structure is simple, easy to manufacture, and low in cost.

[0097] Combination Figure 2 , Figure 3 and Figure 6Of course, in order to further improve the stability of the planetary carrier 200 and thus improve its load capacity, in some embodiments of the present invention, the planetary carrier 200 is also provided with a first rib 260 and a second rib 270.

[0098] Specifically, the first end of the first rib 260 is fixedly connected to the first planetary gear shaft 511, and the second end of the first rib 260 is fixed to the second support member 212.

[0099] The first end of the second rib 270 is fixedly connected to the second planetary gear shaft 521, and the second end of the second rib 270 is fixed to the first support member 211, so that the worm gear 300 and planetary gear 500 on the planet carrier 200 can rotate more stably.

[0100] Combination Figures 4 to 6 In some embodiments of this utility model, a bearing 800 is provided at the rotatable connection between the bottom support 250 and the housing 100, which can reduce the rotational friction between the planetary carrier 200 and the housing 100, making the transmission device more energy-efficient and smoother. The bearing 800 can be a deep groove ball bearing.

[0101] Of course, in some embodiments of this utility model, the bearing 800 can also be a radial thrust bearing, such as an angular contact ball bearing, a thrust self-aligning roller bearing, a tapered roller bearing, etc., which can enable the transmission device to withstand both radial and axial loads at the same time, resulting in smoother transmission.

[0102] Combination Figures 1 to 7 An embodiment of this utility model also provides a transmission system, which includes a drive motor and the aforementioned transmission device.

[0103] The drive motor is connected to the worm gear 700. For example, the output shaft of the drive motor is fixedly connected to the worm gear 700. When the output shaft of the drive motor rotates, it can drive the worm gear 700 to rotate. The structure is simple and the manufacturing cost is low.

[0104] It is understood that the transmission system provided in the embodiments of this utility model, since it includes the aforementioned transmission device, necessarily possesses all the advantages of that transmission device. That is, when this transmission system is applied to the adjustment of furniture or electric curtains, its size is smaller, it has a reverse self-locking capability, and it can bear a larger load.

[0105] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0106] In the description of this specification, the use of terms such as "preferred embodiment," "another embodiment," "some embodiments," "other embodiments," or "specific example," etc., refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0107] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A transmission device, characterized in that, include: The housing has a receiving cavity and an internal gear ring; A worm gear, one end of which is inserted into the receiving cavity and is rotatable relative to the housing; A planetary carrier is installed in the receiving cavity and rotatably engages with the housing; the planetary carrier is provided with a connector for connecting to external devices. The first gear component includes a first tooth segment and a second tooth segment that are coaxially driven. The first tooth segment is a worm gear that meshes with the worm. The second gear component is rotatably mounted on the planetary carrier. The second gear component includes a third tooth segment and a fourth tooth segment that are coaxially driven. The third tooth segment intersects and meshes with the second tooth segment. The axis of rotation of the second gear component is parallel to the axis of the worm. The fourth tooth segment is a planetary gear that meshes with the internal gear ring. The second gear component drives the planetary carrier to rotate relative to the internal gear ring. One of the planetary carrier and the worm gear is the input component of the transmission device, and the other is the output component of the transmission device.

2. The transmission device as described in claim 1, characterized in that, The transmission device includes two or more first gear components and the same number of second gear components as the first gear components. The first gear components and the second gear components are matched one-to-one. The worm is clamped between the first tooth segments of the two or more first gear components, and the fourth tooth segments of the two or more second gear components are matched at intervals on the internal gear ring.

3. The transmission device as described in claim 1, characterized in that, The first gear component is rotatably mounted on the planet carrier, and the axis of rotation of the planet carrier is parallel to or coaxial with the axis of the worm.

4. The transmission device as described in claim 1, characterized in that, The planetary carrier is provided with a support along its own axial direction; The worm gear meshes perpendicularly with the worm. The second tooth segment meshes perpendicularly with the third tooth segment, and both the second tooth segment and the third tooth segment are straight bevel gears.

5. The transmission device as described in claim 4, characterized in that, The support member includes a first support member and a second support member; the worm gear includes a first worm gear and a second worm gear, the first worm gear being rotatably connected to the first support member via a first worm gear shaft, and the second worm gear being rotatably connected to the second support member via a second worm gear shaft; The second tooth segment is an input spur bevel gear, which includes a first input spur bevel gear and a second input spur bevel gear. The first input spur bevel gear is located on the first worm gear shaft, and the second input spur bevel gear is located on the second worm gear shaft. The planetary gear includes a first planetary gear and a second planetary gear. The first planetary gear is rotatably connected to the planet carrier via a first planetary gear shaft, and the second planetary gear is rotatably connected to the planet carrier via a second planetary gear shaft. The third tooth segment is an output spur bevel gear, which includes a first output spur bevel gear and a second output spur bevel gear. The first output spur bevel gear is located on the first planetary gear shaft, and the second output spur bevel gear is located on the second planetary gear shaft. The worm gear is driven to connect with the first worm wheel and the second worm wheel.

6. The transmission device as described in claim 5, characterized in that, The first support member and the second support member are arranged symmetrically. The first worm gear and the second worm gear are arranged symmetrically at the center, and the first input spur bevel gear and the second input spur bevel gear are arranged symmetrically at the center.

7. The transmission device as described in claim 6, characterized in that, The planetary carrier is also provided with a first fixing column and a second fixing column. The first end of the first worm gear shaft is disposed on the first support member, and the second end of the first worm gear shaft is disposed on the first fixed post. The first end of the second worm gear shaft is located on the second support member, and the second end of the second worm gear shaft is located on the second fixed column.

8. The transmission device as described in claim 7, characterized in that, The planetary carrier also includes a top support and a bottom support. The planetary carrier is rotatably connected to the housing via the base support. The top support is provided with a connecting member. The worm gear passes through the base support and is driven by the worm wheel. The first end of the first planetary gear shaft is disposed on the top bracket, and the second end of the first planetary gear shaft is disposed on the first fixed post. The first end of the second planetary gear shaft is located on the top bracket, and the second end of the second planetary gear shaft is located on the second fixed column.

9. The transmission device as described in claim 8, characterized in that, The planetary carrier is also provided with a first rib and a second rib. The first end of the first rib is fixedly connected to the first planetary gear shaft, and the second end of the first rib is fixed to the second support member. The first end of the second rib is fixedly connected to the second planetary gear shaft, and the second end of the second rib is fixed to the first support member.

10. A transmission system, characterized in that, Includes a drive motor and the transmission device as described in any one of claims 1 to 9. The drive motor is connected to the worm gear drive.

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