Transmission and transmission system

Abstract

The present invention relates to the technical field of transmission device equipment, and provides a transmission device and a transmission system, wherein the transmission device includes a housing, a planetary carrier, a worm wheel, a first gear component, a planetary gear, a first gear component and a worm. By providing a housing and an inner gear ring in the housing, the planetary carrier is rotatably matched with the accommodating cavity and provided with a connecting member connected to an external device; the second gear component is rotatably installed on the planetary carrier, and the first tooth segment is provided as a worm wheel and intersected and meshed with the worm, the second tooth segment is intersected and meshed with the third tooth segment, and the fourth tooth segment is meshed with the inner gear ring, so that the second gear component can drive the planetary carrier to rotate relative to the inner 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 used in some telescopic parts with limited cross-sectional areas, and has reverse self-locking capability, and can carry a larger load.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission devices and equipment, and in particular to a transmission device and a transmission system. Background Art

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

[0003] For example, electric lift tables, smart wardrobes, smart bookshelves, and electric curtains are equipped with transmission devices (such as transmission devices or gearboxes) for lifting and lowering. Transmission devices usually use worm gear transmission. Worm gear transmission has a higher transmission ratio and transmission power, and worm gear transmission has a certain self-locking ability, which can effectively carry loads.

[0004] However, in related transmission technologies, worm gear transmission makes the transmission device larger in size and cannot be integrated into some telescopic parts with limited cross-sectional areas, such as telescopic legs of furniture, telescopic rods of electric curtains, etc. Summary of the Invention

[0005] In response to the above-mentioned defects of 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 volume of the transmission device can be smaller, and it can be used in some telescopic parts with limited cross-sectional area. It also has reverse self-locking capability and can carry a larger load.

[0006] A second aspect of the present invention provides a transmission system.

[0007] In order to achieve the purpose of the present invention, the present invention provides a transmission device, comprising:

[0008] The housing is provided with a receiving cavity and an inner gear ring;

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

[0010] A planet carrier is installed in the accommodating cavity and rotatably cooperates with the housing, and the planet carrier is provided with a connector for connecting with an external device;

[0011] a first gear component, the first gear component comprising a first tooth segment and a second tooth segment that are coaxially driven, the first tooth segment being a worm gear and intersecting and meshing with the worm;

[0012] a second gear component rotatably mounted on the planet carrier, the second gear component comprising a third tooth segment and a fourth tooth segment coaxially driven, the third tooth segment intersecting and meshing with the second tooth segment, the rotating shaft of the second gear component being parallel to the axis of the worm, the fourth tooth segment being a planetary gear, the fourth tooth segment meshing with the inner gear ring, and the second gear component driving the planet carrier to rotate relative to the inner gear ring;

[0013] One of the planet carrier and the worm is an input component of the transmission device, and the other is an 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, 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 spaced and matched on the inner 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 planet carrier is provided with a support member along its own axial direction;

[0017] The worm wheel is vertically meshed with the worm;

[0018] The second tooth segment is vertically meshed 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 is rotatably connected to the first support member via a first worm gear shaft, and the second worm gear is rotatably connected to the second support member via a second worm gear shaft;

[0020] The input spur gear includes a first input spur gear and a second input spur gear, the first input spur gear is provided on the first worm gear shaft, and the second input spur gear is provided 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 gear includes a first output spur gear and a second output spur gear, the first output spur gear is provided on the first planetary gear shaft, and the second output spur gear is provided on the second planetary gear shaft;

[0023] The worm is drivingly connected to the first worm gear and the second worm gear.

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

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

[0026] Preferably, the planet 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 arranged on the first support member, and the second end of the first worm gear shaft is arranged on the first fixing column.

[0028] The first end of the second worm gear shaft is arranged on the second supporting member, and the second end of the second worm gear shaft is arranged on the second fixing column.

[0029] Preferably, the planet carrier further comprises a top bracket and a bottom bracket.

[0030] The planet carrier is rotatably connected to the housing through the bottom bracket, the top bracket is provided with a connecting piece, and the worm passes through the bottom bracket and is drivingly connected to the worm gear.

[0031] The first end of the first planetary gear shaft is arranged on the top bracket, and the second end of the first planetary gear shaft is arranged on the first fixing column.

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

[0033] Preferably, the planet 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 the present invention provides a transmission system, which includes a drive motor and the above-mentioned transmission device.

[0037] The driving motor is drivingly connected to the worm.

[0038] The beneficial effects of the present invention are:

[0039] The transmission device provided by the present invention is provided with a housing and an inner gear ring, the planet carrier is rotated to fit in the housing and a connecting piece connected to an external device is provided on the planet carrier; the first gear component includes a first tooth segment and a second tooth segment for coaxial transmission, and the second tooth segment includes a third tooth segment and a fourth tooth segment for coaxial rotation; the second gear component is rotatably installed on the planet carrier, and the first tooth segment is set as a worm wheel and intersects and meshes with the worm, the second tooth segment is intersected and meshed with the third tooth segment, and the fourth tooth segment 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, and one of the planet 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 used in some telescopic parts with limited cross-sectional area, and it has reverse self-locking ability and can carry a larger load.

[0040] The transmission system provided by the present invention, since it includes the aforementioned transmission device, inherently possesses all the advantages of such a transmission device. Specifically, when used to adjust furniture or electric curtains, the transmission system is also smaller in size, has a reverse self-locking capability, and can carry larger loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of the preferred embodiments of the present invention as shown in the accompanying drawings. Like reference numerals indicate like parts throughout the accompanying drawings, and the drawings are not drawn to scale with actual size, but rather are intended to illustrate the subject matter of the present application.

[0042] Figure 1 A schematic diagram of the overall structure of a transmission device provided in an embodiment of the present invention;

[0043] Figure 2 for Figure 1 Schematic diagram of the structure after cutting off part of the shell;

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

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

[0046] Figure 5 A schematic diagram of the structure of the transmission device provided by an embodiment of the present invention with the planet carrier and a partially cutaway housing removed;

[0047] Figure 6A schematic structural diagram of a planet carrier in a transmission device provided by an embodiment of the present invention;

[0048] Figure 7 This is a schematic structural diagram of the transmission device provided by an embodiment of the present invention with the planet carrier removed.

[0049] In the picture:

[0050] 100, housing; 110, accommodating chamber; 120, inner gear ring;

[0051] 200, planet carrier; 210, support member; 211, first support member; 212, second support member; 220, first fixing column; 230, second fixing column; 240, top bracket; 241, connecting member; 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 spur bevel gear; 410, first input spur bevel gear; 420, second input spur 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 spur bevel gear; 610, first output spur bevel gear; 620, second output spur bevel gear;

[0056] 700, worm;

[0057] 800. Bearings. DETAILED DESCRIPTION

[0058] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings.

[0059] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element. The terms "mounted", "one end", "the other end" and similar expressions used herein 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 skilled in the art to which this document pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present 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 combination Figures 1 to 7 It should be understood that the following description is merely an illustrative embodiment of the present invention and does not constitute any limitation to the present invention.

[0062] Combine Figures 1 to 7 An embodiment of the present invention provides a transmission device, which includes a housing 100, a planet 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 inner ring gear 120 is further provided within the housing 100. In this embodiment, the inner ring gear 120 can be provided at one end of the housing 100. The end where the inner ring gear 120 is provided is the output end of the transmission device, and the end where the inner ring gear 120 is not provided is the input end. The central axis of the inner ring gear 120 coincides with the central axis of the housing 100.

[0064] Planet carrier 200 is mounted within housing cavity 110 and rotatably engages housing 100. Connectors 241 are also provided on planet carrier 200 for connecting to external components. Support members 210 are provided along the planet carrier 200's axial direction. When the transmission device is subjected to axial loads, support members 210 can bear the load. Support members 210, which can be support columns, can support the loads. In this embodiment, the central axis of planet carrier 200 coincides with the central axis of housing 100.

[0065] The first gear component includes a first tooth segment and a second tooth segment of coaxial transmission, and the first tooth segment can be a worm wheel 300 and intersects and meshes with the worm 700. Of course, the worm wheel 300 and the worm 700 can be vertically meshed, 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 planetary carrier 200 and includes coaxially driven third and fourth tooth segments. The third tooth segment intersects and meshes with the second tooth segment. The rotational axis of the second gear component is parallel to the axis of worm 700. The fourth tooth segment, which may be a planetary gear 500, meshes with inner ring gear 120. The second gear component drives planetary carrier 200 to rotate relative to inner ring gear 120. The perpendicular meshing of the third tooth segment with the second tooth segment reduces the size of the rotating structure between the first and second gear components, thereby reducing the size of the transmission device.

[0067] The first gear member 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 planet carrier 200 is parallel to or coaxial with the axis of worm 700. That is, planet gears 500 are rotatably connected to planet carrier 200, and the axial direction of planet gears 500 is parallel to the axial direction of planet carrier 200. Planet gears 500 are meshed with ring gear 120. When ring gear 120 is fixed and planet gears 500 are driven to rotate, planet carrier 200 can rotate about its own central axis.

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

[0070] In this embodiment, the worm 700 can be used as an input component and the planet carrier 200 can be used as an output component. When the worm 700 rotates, it can drive the worm wheel 300 to rotate, and then drive the second tooth segment and the third tooth segment to rotate, thereby driving the planetary gear 500 to rotate and driving the planet carrier 200 to rotate relative to the inner ring gear 120.

[0071] In other embodiments of the present invention, the planetary carrier 200 can serve as an input component. In this case, the worm 700 serves as an output component. When the planetary carrier 200 rotates, it drives the planetary gear 500 to rotate relative to the inner ring 120, thereby driving the third tooth segment and the second tooth segment to rotate, driving the worm wheel 300 and the worm 700 to rotate.

[0072] The transmission device provided in this embodiment may also 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, and 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 spaced and matched on the inner gear ring.

[0073] The second tooth segment is meshed with the third tooth segment at right angles, and both the second tooth segment and the third tooth segment are straight bevel gears.

[0074] Specifically, the first tooth segment may be a worm gear 300, which includes a first worm gear 310 and a second worm gear 320; the second tooth segment may be an input spur bevel gear 400, which includes a first input spur bevel gear 410 and a second input spur bevel gear 420; the third tooth segment may 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 vertically meshed with the input spur bevel gear 400 .

[0077] One end of the worm 700 is inserted into the accommodating cavity 110 and is rotatable relative to the housing 100. The worm 700 is drivably connected to the worm wheel 300, so that when the worm 700 rotates, it can drive 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 meshed with the input spur bevel gear 400. The planetary gears 500 rotate synchronously with the output spur bevel gear 600, so that when the inner ring gear 120 is fixed, the planetary carrier 200 can rotate about its own central axis, thereby achieving rotational power input by 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 coincides with the central axis of the housing 100, so that the worm wheel 300 and the worm 700 have a self-locking function, thereby improving the load-bearing capacity of the transmission device.

[0078] It can be understood that the transmission device provided by the embodiment of the present invention, by providing a accommodating cavity and an inner ring gear on the housing, the planet carrier is rotated to fit in the accommodating cavity of the housing and a connecting member connected to the external device is provided on the planet carrier; the first gear component includes a first tooth segment and a second tooth segment of coaxial transmission, and the second tooth segment includes a third tooth segment and a fourth tooth segment that rotate coaxially; the second gear component is rotatably installed on the planet carrier, and the first tooth segment is set as a worm gear and intersects and meshes with the worm, the second tooth segment intersects and meshes with the third tooth segment, and the fourth tooth segment meshes with the inner ring gear, so that the second gear component can drive the planet carrier to rotate relative to the inner ring gear, and one of the planet 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 used in some telescopic parts with limited cross-sectional area, and it has reverse self-locking capability and can carry a larger load.

[0079] In addition, a support member 210 is provided on the planetary frame 200, and the support member 210 is extended along the axial direction of the planetary frame 200, which can further improve the load capacity of the planetary frame 200 in the axial direction. When the transmission device is provided on the furniture or electric curtains, even if the furniture or electric curtains are loaded, the planetary frame 200 can resist the load, and the transmission device will not malfunction even if it is under pressure. The worm wheel 300 and the worm 700 can also drive the planetary frame 200 to rotate normally, ensuring the normal lifting and lowering of the furniture, and avoiding the collapse of the furniture or the falling of the electric curtains to cause safety accidents.

[0080] Specifically, combined Figures 2 to 6In 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 gear 400 includes a first input spur gear 410 and a second input spur gear 420 . The first input spur gear 410 is disposed on the first worm gear shaft 311 , and the second input spur 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 planetary carrier 200 via a first planetary gear shaft 511 , and the second planetary gear 520 is rotatably connected to the planetary 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 drivingly connected to the first worm gear 310 and the second worm gear 320 .

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

[0087] Combine Figure 6 Furthermore, in some embodiments of the present invention, the first support member 211 and the second support member 212 may be symmetrically arranged.

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

[0089] In addition, in order to improve the stability of the worm gear 300 during rotation and reduce the failure rate of the transmission device, in some embodiments of the present invention, the planetary carrier 200 is also provided with a first fixing column 220 and a second fixing column 230. The first fixing column 220 and the second fixing column 230 can both extend along the axial direction of the planetary carrier 200 to form a height, so that the first fixing column 220 and the second fixing column 230 can also resist the load in the axial direction.

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

[0091] A first end of the second worm gear shaft 321 is disposed on the second support member 212 , and a second end of the second worm gear shaft 321 is disposed on the second fixing post 230 .

[0092] Combine Figures 2 to 6 In some embodiments of the present invention, the planetary carrier 200 further includes a top bracket 240 and a bottom bracket 250. The support member 210 supports the top bracket 240 and the bottom bracket 250, so that when the planetary carrier 200 is loaded in the axial direction, it can better resist the relevant load, thereby further improving the load level of the transmission device.

[0093] The planet carrier 200 is rotatably connected to the housing 100 via the bottom bracket 250 . The top bracket 240 is provided with a connector 241 , which may be an output shaft. The worm 700 passes through the bottom bracket 250 and is drivingly connected to 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 fixing 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 fixing column 230 .

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

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

[0098] Specifically, a first end of the first rib 260 is fixedly connected to the first planetary gear shaft 511 , and a 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 the planetary gear 500 disposed on the planetary carrier 200 can rotate more stably.

[0100] Combine Figures 4 to 6 In some embodiments of the present invention, a bearing 800 is provided at the rotational connection between the base bracket 250 and the housing 100 to reduce rotational friction between the planet carrier 200 and the housing 100, thereby making the transmission device more energy-efficient and more stable. The bearing 800 may be a deep groove ball bearing.

[0101] Of course, in some embodiments of the present invention, the bearing 800 can also be a centripetal thrust bearing, such as an angular contact ball bearing, a thrust spherical roller bearing, a tapered roller bearing, etc., which can enable the transmission device to withstand radial loads and axial loads at the same time, making the transmission smoother.

[0102] Combine Figures 1 to 7 , an embodiment of the present invention further provides a transmission system, which includes a drive motor and the above-mentioned transmission device.

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

[0104] It is understood that the transmission system provided by the embodiments of the present invention, since it includes the aforementioned transmission device, necessarily possesses all the advantages of the transmission device. Specifically, when used to adjust furniture or electric curtains, the transmission system is also smaller in size, has a reverse self-locking capability, and can carry larger loads.

[0105] In this specification, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it 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 intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0106] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "some embodiments", "other embodiments" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0107] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A transmission device, characterized in that: include: The housing is provided with a receiving cavity and an inner gear ring; a worm, one end of which is inserted into the accommodating cavity and is rotatable relative to the housing; A planet carrier is installed in the accommodating cavity and rotatably cooperates with the housing, and the planet carrier is provided with a connector for connecting with an external device; a first gear component, the first gear component comprising a first tooth segment and a second tooth segment that are coaxially driven, the first tooth segment being a worm gear and intersecting and meshing with the worm; a second gear component rotatably mounted on the planet carrier, the second gear component comprising a third tooth segment and a fourth tooth segment coaxially driven, the third tooth segment intersecting and meshing with the second tooth segment, the rotating shaft of the second gear component being parallel to the axis of the worm, the fourth tooth segment being a planetary gear, the fourth tooth segment meshing with the inner gear ring, and the second gear component driving the planet carrier to rotate relative to the inner gear ring; One of the planet carrier and the worm is an input component of the transmission device, and the other is an output component of the transmission device; The planet carrier is provided with a support member along its own axial direction; The worm wheel is vertically meshed with the worm; The second tooth segment is vertically meshed with the third tooth segment, and both the second tooth segment and the third tooth segment are straight bevel gears; 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 is rotatably connected to the first support member via a first worm gear shaft, and the second worm gear is rotatably connected to the second support member via a second worm gear shaft; The input spur gear includes a first input spur gear and a second input spur gear, wherein the first input spur gear is provided on the first worm gear shaft, and the second input spur gear is provided 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 output spur gear includes a first output spur gear and a second output spur gear, wherein the first output spur gear is provided on the first planetary gear shaft, and the second output spur gear is provided on the second planetary gear shaft; The worm is drivingly connected to the first worm gear and the second worm gear.

2. The transmission device according to 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 spaced and matched on the inner gear ring.

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

4. The transmission device according to claim 1, wherein: The first support member and the second support member are symmetrically arranged, The first worm gear and the second worm gear are centrally symmetrically arranged, and the first input spur bevel gear and the second input spur bevel gear are centrally symmetrically arranged.

5. The transmission device according to claim 4, characterized in that The planet carrier is further provided with a first fixing column and a second fixing column. The first end of the first worm gear shaft is arranged on the first support member, and the second end of the first worm gear shaft is arranged on the first fixing column. The first end of the second worm gear shaft is arranged on the second supporting member, and the second end of the second worm gear shaft is arranged on the second fixing column.

6. The transmission device according to claim 5, characterized in that The planet carrier also includes a top bracket and a bottom bracket, The planet carrier is rotatably connected to the housing through the bottom bracket, the top bracket is provided with a connecting piece, and the worm passes through the bottom bracket and is drivingly connected to the worm gear. The first end of the first planetary gear shaft is arranged on the top bracket, and the second end of the first planetary gear shaft is arranged on the first fixing column. The first end of the second planetary gear shaft is arranged on the top bracket, and the second end of the second planetary gear shaft is arranged on the second fixing column.

7. The transmission device according to claim 6, characterized in that The planet carrier is further 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.

8. A transmission system, characterized in that: comprising a drive motor and a transmission device according to any one of claims 1 to 7, The driving motor is drivingly connected to the worm.

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