All-gear continuously variable speed device

Abstract

The application relates to a full-gear stepless speed regulating device which comprises a centering mechanism, a first planetary gear set and a transmission connecting rod, the centering mechanism comprises a movably arranged centering piece; the first planetary gear set comprises a first planetary gear, a centering rocker arm and a reset piece, a sliding groove extending along the radial direction of the first planetary gear is arranged on the first planetary gear; the first end of the transmission connecting rod extends into the sliding groove, the centering rocker arm is hingedly connected with the first planetary gear and the first end of the transmission connecting rod respectively, the surface of the centering piece is in abutment with the centering rocker arm, the centering piece can move along the axial direction of the rotating shaft sleeve and drive the centering rocker arm to swing, and the centering rocker arm can drive the first end of the transmission connecting rod to move along the length direction of the sliding groove. The full-gear stepless speed regulating device provided by the application can realize eccentricity adjustment of the first end of the transmission connecting rod through the centering mechanism and the centering rocker arm, and the structure is simple and efficient.

Description

Technical Field

[0001] This application relates to the field of power technology, and in particular to a fully geared stepless speed regulating device. Background Technology

[0002] With the development of industrial automation and high-end equipment manufacturing, more refined requirements have been put forward for the output characteristics of powertrains. Continuously variable transmission (CVT) technology, because it can achieve seamless switching of transmission ratio, has gradually become a key means to improve the performance of mechanical systems.

[0003] To achieve stepless speed regulation in powertrains, some all-gear continuously variable transmission (CVT) devices have emerged on the market. These devices utilize the interaction of planetary gear sets and connecting rod assemblies to achieve stepless speed regulation. In these devices, a sliding actuator is typically used to move the eccentric shaft of the planetary drive gear, thereby adjusting the speed ratio by changing the eccentricity.

[0004] However, the aforementioned speed regulating device, which uses a sliding actuator to drive the eccentric shaft of the planetary drive gear, suffers from complex structure and high manufacturing requirements. Summary of the Invention

[0005] This application provides a fully geared continuously variable speed control device to solve the technical problems of complex structure and high manufacturing requirements in existing continuously variable speed control devices that use a sliding actuator to drive an eccentric shaft.

[0006] This application provides a fully geared stepless speed regulating device, comprising: The centering mechanism includes the centering components for the activity setup; Planetary support, the planetary support includes a fixedly mounted rotating shaft sleeve; The first planetary gear set includes a first planetary gear, a self-aligning rocker arm, and a reset component. The first planetary gear has a groove extending radially thereon. Linkage assembly, including transmission link; The first planetary gear is coaxially rotatably mounted on the shaft sleeve; the first end of the transmission connecting rod extends into the slide groove, and the reset member is connected to the first end of the first planetary gear and the first end of the transmission connecting rod respectively; the self-aligning rocker arm is hinged to the first end of the first planetary gear and the first end of the transmission connecting rod respectively, the surface of the self-aligning member abuts against the self-aligning rocker arm, the self-aligning member can move along the axial direction of the shaft sleeve and drive the self-aligning rocker arm to swing; the self-aligning rocker arm can drive the first end of the transmission connecting rod to move along the length direction of the slide groove.

[0007] Optionally, the outer peripheral surface of the self-aligning component is provided with an adjustment surface, which is a conical surface or a hemispherical surface, and the axis of the adjustment surface coincides with the axis of the first planetary gear.

[0008] Optionally, the self-aligning mechanism further includes a rotary drive, an adjusting screw, and a guide. The rotary drive and the adjusting screw are coaxially arranged, the adjusting screw is threadedly connected to the self-aligning component, and the self-aligning component and the guide are slidably connected along the axial direction of the self-aligning mechanism.

[0009] Optionally, the first planetary gear has a hinge seat extending into the interior of the shaft sleeve, and the self-aligning rocker arm is connected to the hinge seat; The self-aligning rocker arm has an abutting end and a connecting end. The abutting end extends toward the self-aligning component and abuts against it. The connecting end is hinged to the transmission connecting rod, and the abutting end and the connecting end are located on both sides of the hinge seat.

[0010] Optionally, the first planetary gear also has a limiting groove communicating with the slide groove inside, and the reset member is disposed in the limiting groove.

[0011] Optionally, the all-gear continuously variable speed control device further includes a fixed shaft assembly, an input gear ring, a second planetary gear set, and an output gear ring; the fixed shaft assembly includes a fixed shaft body, a planetary support coaxially fixed on the fixed shaft body, and the input gear ring and the output gear ring coaxially rotatably mounted on the fixed shaft body. The input gear ring meshes with the first planetary gear set, the output gear ring meshes with the second planetary gear set, and the connecting rod assembly is respectively connected to the first planetary gear set and the second planetary gear set for transmission.

[0012] Optionally, the second planetary gear set includes a second planetary gear, and the second end of the transmission connecting rod is rotatably connected to the second planetary gear; The number of self-aligning mechanisms, rotating shaft sleeves, first planetary gears, self-aligning rocker arms, reset components, and transmission links are all multiple, and the multiple self-aligning mechanisms, multiple rotating shaft sleeves, multiple first planetary gears, multiple self-aligning rocker arms, multiple transmission links, and multiple second planetary gears are arranged in a one-to-one correspondence.

[0013] Optionally, the transmission linkage includes a first member, a second member, and a third member. The first member and the third member are respectively arranged perpendicularly to the two ends of the second member. The length direction of the first member and the third member is parallel to the axial direction of the fixed shaft body, and the first member and the third member extend in opposite directions. The first member is connected to the first planetary gear and the self-aligning rocker arm, and the third member is rotatably connected to the second planetary gear.

[0014] Optionally, the all-gear stepless speed regulating device further includes a spacing retention component, which includes a support roller and multiple connecting rod rollers. The support roller is coaxially mounted on the fixed shaft body, and the multiple connecting rod rollers are rotatably connected to the second ends of multiple transmission connecting rods respectively. The multiple connecting rod rollers are coaxially mounted with multiple second planetary gears respectively, and the outer peripheral surface of the support roller is in contact with the outer peripheral surface of the multiple connecting rod rollers.

[0015] Optionally, the all-gear continuously variable speed control device further includes a housing assembly, which includes a first housing and a second housing. The first housing and the second housing are both rotatably mounted on the fixed shaft body on the same axis. Both the first housing and the second housing are provided with a transmission connection part. Both the first housing and the second housing are semi-enclosed structures, and the opening of the first housing is opposite to the opening of the second housing. The first housing has a first receiving cavity inside, and the self-aligning mechanism, planetary support, first planetary gear set and input gear ring are all disposed inside the first receiving cavity, and the first housing is fixedly connected to the input gear ring; The second housing has a second receiving cavity inside, the second planetary gear set and the output gear ring are disposed inside the second receiving cavity, and the second housing is fixedly connected to the output gear ring.

[0016] The technical solutions provided in this application have the following advantages compared with the prior art: The fully geared stepless speed regulating device provided in this application embodiment includes a self-aligning mechanism, a planetary carrier, a first planetary gear set, and a connecting rod assembly. The self-aligning mechanism includes a movable self-aligning component, which can be used to adjust the eccentricity, thereby achieving stepless speed ratio adjustment. The first planetary gear set includes a first planetary gear, a self-aligning rocker arm, and a reset component. The first planetary gear is rotatably mounted on the rotating shaft sleeve of the planetary carrier. A radially extending groove is formed on the first planetary gear, and the first end of the transmission connecting rod extends into the groove, serving as the eccentric shaft of the first planetary gear. When the first end of the transmission connecting rod slides within the groove, the eccentricity changes accordingly. The reset component is connected to both the first planetary gear and the first end of the transmission connecting rod. The self-aligning component of the self-aligning mechanism can abut against the self-aligning rocker arm in the first planetary gear set. The self-aligning component can move along the axial direction of the rotating shaft sleeve and drive the self-aligning rocker arm to swing. Since the self-aligning rocker arm is hinged to the first end of the transmission connecting rod, it can drive the first end of the transmission connecting rod to overcome the elastic force of the reset component and slide in the slide groove, thereby realizing the adjustment of the eccentricity. The self-aligning principle is simple and the manufacturing difficulty is low. It has the advantages of simple structure and low manufacturing difficulty. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 A schematic diagram of the structure of the all-gear continuously variable speed control device provided in the embodiments of this application. Figure 1 ; Figure 2 A schematic diagram of the structure of the all-gear continuously variable speed control device provided in the embodiments of this application. Figure 2 ; Figure 3 An exploded view of the all-gear continuously variable speed control device provided in the embodiments of this application; Figure 4 A schematic diagram of the structure of the all-gear continuously variable speed control device provided in the embodiment of this application after removing the outer casing assembly; Figure 5 Provided for the embodiments of this application Figure 4 The left view of the first side; Figure 6 Provided for the embodiments of this application Figure 4 The right view of the second side; Figure 7 This is a schematic diagram of the self-aligning mechanism provided in the embodiments of this application; Figure 8 A schematic diagram of the structure of the first planetary gear provided in the embodiments of this application. Figure 1 ; Figure 9 A schematic diagram of the structure of the first planetary gear provided in the embodiments of this application. Figure 2 ; Figure 10 This is a schematic diagram of the self-aligning rocker arm provided in an embodiment of this application; Figure 11 This is a schematic diagram of the transmission link provided in an embodiment of this application; Figure 12 A schematic diagram showing the connection of the self-aligning mechanism, the first planetary gear set, the transmission link, the link roller, and the second planetary gear provided in the embodiments of this application; Figure 13 Provided for the embodiments of this application Figure 12 A partial sectional view; Figure 14 Provided for the embodiments of this application Figure 13 Enlarged detail image; Figure 15 A schematic diagram of the self-aligning principle provided in the embodiments of this application; Figure 16 This is a front view of the transmission link provided in an embodiment of this application; Figure 17 This is a schematic diagram of the structure of the planetary support provided in the embodiments of this application; Figure 18 This is a schematic diagram showing the connection between the fixed shaft assembly, planetary support, and support rollers provided in an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures: 100. Self-aligning mechanism; 110. Self-aligning component; 111. Adjusting surface; 120. Rotary drive component; 130. Adjusting screw; 140. Guide component; 200. Planetary support; 210. Shaft sleeve; 211. Shaft surface; 212. Accommodating space; 213. Fixing part; 220. Shaft hole; 300, First planetary gear set; 310, First planetary gear; 311, Slide groove; 312, Hinge seat; 313, Limiting groove; 314, Rotating mating surface; 320, Self-aligning rocker arm; 321, Abutting end; 322, Connecting end; 323, Hinge part; 330, Reset part; 340, Limiting cover plate; 400. Linkage assembly; 410. Transmission link; 411. First link; 4111. Abutment surface; 4112. Rocker arm hinge hole; 412. Second link; 413. Third link; 500. Fixed shaft assembly; 510. Fixed shaft body; 520. First bearing; 530. Second bearing; 540. Third bearing; 550. Fourth bearing; 560. First pressure ring; 570. Second pressure ring; 580. Third pressure ring; 600. Input gear ring; 700. Second planetary gear set; 710. Second planetary gear; 800, Output gear ring; 900. Spacing maintaining assembly; 910. Support roller; 920. Linkage roller; 1000, Housing assembly; 1010, First housing; 1011, First transmission connection; 1020, Second housing; 1021, Second transmission connection. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0024] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0025] To address the technical problems of complex structure, high manufacturing requirements, and large cumulative errors in existing continuously variable speed (CVT) devices that use sliding actuators to drive eccentric shafts, this application provides an all-gear CVT device, including a self-aligning mechanism 100, a planetary support 200, a first planetary gear set 300, and a connecting rod assembly 400. The first planetary gear set 300 includes a first planetary gear 310, a self-aligning rocker arm 320, and a reset member 330. The first planetary gear 310 is rotatably mounted on the rotating shaft sleeve 210 of the planetary support 200. A radially extending groove 311 is formed on the first planetary gear 310, and the first end of the transmission connecting rod 410 extends into the groove 311, serving as the eccentric shaft of the first planetary gear 310. The reset member 330 is connected to both the first planetary gear 310 and the first end of the transmission connecting rod 410. The self-aligning component 110 of the self-aligning mechanism 100 can abut against the self-aligning rocker arm 320 in the first planetary gear set 300. The self-aligning component 110 can move along the axial direction of the rotating shaft sleeve 210 and drive the self-aligning rocker arm 320 to swing. Since the self-aligning rocker arm 320 is hinged to the first end of the transmission connecting rod 410, it can drive the first end of the transmission connecting rod 410 to overcome the elastic force of the reset component 330 and slide in the slide groove 311, thereby realizing the adjustment of the eccentricity. The self-aligning principle is simple and the manufacturing difficulty is low. It has the advantages of simple structure, low manufacturing difficulty, and low material consumption.

[0026] Please see Figures 1 to 18 This application provides a fully geared stepless speed regulation device, including a self-aligning mechanism 100, a planetary support 200, a first planetary gear set 300, and a connecting rod assembly 400. The self-aligning mechanism 100 includes a movable self-aligning component 110, which can be used to adjust the eccentricity, thereby achieving stepless adjustment of the speed ratio.

[0027] The planetary carrier 200 is used to install the first planetary gear set 300. The planetary carrier 200 includes a fixedly mounted shaft sleeve 210, and the shaft sleeve 210 has a through-hole receiving space 212 inside, such as... Figure 4 and Figure 17 As shown, this allows the self-aligning mechanism 100 and the first planetary gear set 300 to be connected within the accommodating space 212, which facilitates the compact assembly of the all-gear continuously variable speed control device.

[0028] The first planetary gear set 300 includes a first planetary gear 310, a self-aligning rocker arm 320, and a reset member 330. The first planetary gear 310 is used to mesh with the input gear ring 600, such as... Figure 4 As shown, this is to enable the input and transmission of power. The first planetary gear 310 has a radially extending groove 311, as shown... Figure 8 As shown. The linkage assembly 400 includes a transmission linkage 410, which can be used to realize the transmission of power within the all-gear continuously variable speed control device and the adjustment of the eccentricity.

[0029] Specifically, the first planetary gear 310 is coaxially rotatably mounted on the rotating shaft sleeve 210 and can rotate relative to the rotating shaft sleeve 210 to mesh with the input gear ring 600. The first end of the transmission connecting rod 410 extends into the slide groove 311, such as... Figures 12 to 14 As shown, the first end of the transmission link 410 can serve as the eccentric shaft of the first planetary gear 310. The distance between the centerline of the first end of the transmission link 410 and the center of the first planetary gear 310 is the eccentricity. When the first end of the transmission link 410 slides in the slide groove 311, the eccentricity changes accordingly.

[0030] The reset member 330 is connected to the first end of the first planetary gear 310 and the first end of the transmission connecting rod 410, respectively, and can apply a reset spring force to the first end of the transmission connecting rod 410; the self-aligning rocker arm 320 is hinged to the first end of the first planetary gear 310 and the first end of the transmission connecting rod 410, respectively. Figure 13 and Figure 14 As shown, the surface of the self-aligning component 110 abuts against the self-aligning rocker arm 320. The self-aligning component 110 can move along the axial direction of the rotating shaft sleeve 210 and drive the self-aligning rocker arm 320 to swing. When the self-aligning rocker arm 320 swings, it can drive the first end of the transmission connecting rod 410 to move along the length direction of the slide groove 311.

[0031] Specifically, the slide groove 311 has a first side and a second side in the length direction. The reset member 330 always has the tendency to move the first end of the transmission link 410 toward the first side. The self-aligning member 110 and the self-aligning rocker arm 320 can drive the first end of the transmission link 410 to move toward the second side, so that the first end of the transmission link 410 can overcome the elasticity of the reset member 330 to achieve the adjustment of the eccentricity.

[0032] In some embodiments of this application, please refer to Figure 13 and Figure 14In the initial position, the force exerted by the self-aligning component 110 on the self-aligning rocker arm 320 is minimal. At this time, the first end of the transmission link 410 (i.e., the first link 411) is pressed against the first side of the slide groove 311 (i.e., the upper side in the figure) by the reset component 330. When the self-aligning component 110 moves to the left side in the figure, the force exerted by the self-aligning component 110 on the self-aligning rocker arm 320 increases, and the self-aligning rocker arm 320 swings. At this time, the self-aligning rocker arm 320 will drive the first end of the transmission link 410 to move towards the second side of the slide groove 311 (i.e., the lower side in the figure). The distance (i.e., the eccentricity) between the center line of the first end of the transmission link 410 and the center of the first planetary gear 310 gradually decreases, which is beneficial to realize the continuous stepless change of the speed ratio. The elastic force generated by the reset member 330 can be used to achieve force balance at the first end of the transmission link 410, so that the first end of the transmission link 410 is maintained in the slide groove 311 at a preset position (at this time, the self-aligning rocker arm 320 is also maintained in the preset position) to obtain a preset eccentricity.

[0033] In some embodiments of this application, please refer to Figure 7 , Figure 13 and Figure 14 The outer circumferential surface of the self-aligning component 110 is provided with an adjustment surface 111. The adjustment surface 111 is a conical surface or a hemispherical surface, and the axis of the adjustment surface 111 coincides with the axis of the first planetary gear 310. Since the first planetary gear 310 is in a rotating state during the operation of the all-gear stepless speed regulating device, the self-aligning rocker arm 320 is hinged to the first planetary gear 310 and will also perform circular motion around the self-aligning component 110. Setting the adjustment surface 111 as a conical or hemispherical surface can avoid interference with the movement of the self-aligning rocker arm 320. The coincidence of the axis of the adjustment surface 111 with the axis of the first planetary gear 310 can ensure the coaxiality of the adjustment surface 111 and the first planetary gear 310, and ensure the reliability of adjusting the eccentricity through the self-aligning component 110. Specifically, in order to achieve stepless adjustment of the eccentricity, the adjustment surface 111 is preferably a conical surface.

[0034] In some embodiments of this application, please refer to Figure 7 The self-aligning component 110 is made of a high-hardness material with a low coefficient of friction; or the adjusting surface 111 is provided with a low-resistance wear-resistant coating in order to increase the hardness of the contact area between the self-aligning component 110 and the self-aligning rocker arm 320 and reduce the friction between the adjusting surface 111 and the self-aligning rocker arm 320.

[0035] It should be noted that the axial movement of the self-aligning component 110 in the first planetary gear 310 can be driven by a motor or by linear actuators such as hydraulic cylinders or pneumatic cylinders, both of which can achieve the purpose of this application.

[0036] Please refer to some preferred embodiments of this application. Figure 7The self-aligning mechanism 100 also includes a rotary drive 120, an adjusting screw 130, and a guide 140. The rotary drive 120 is coaxially arranged with the adjusting screw 130 and can drive the adjusting screw 130 to rotate synchronously. The adjusting screw 130 is threadedly connected to the self-aligning component 110, and the self-aligning component 110 and the guide 140 are slidably connected along the axial direction of the self-aligning mechanism 100. When the adjusting screw 130 rotates, the self-aligning component 110 will not rotate under the guiding and limiting action of the guide 140, but will move along the axial direction of the adjusting screw 130. By adjusting the screw 130 in the forward or reverse direction, the self-aligning component 110 can be moved closer to or further away from the first planetary gear 310, thereby increasing or decreasing the eccentricity.

[0037] Specifically, the guide member 140 is a long strip structure extending along the axial direction of the self-aligning member 110, and the cross-section of the guide member 140 is a non-circular cross-section (such as a rectangle), which can restrict the rotation of the self-aligning member 110 so that it can only move along the axial direction.

[0038] It should be noted that this application achieves the movement of the self-aligning component 110 in the axial direction of the first planetary gear 310 by adjusting the screw 130 and the self-aligning component 110 through the threaded engagement, which can realize high-precision, bidirectional, and stepless adjustment of the eccentricity.

[0039] In some embodiments of this application, please refer to Figure 4 , Figure 8 , Figure 9 and Figure 14 The first planetary gear 310 has a hinge seat 312 extending into the interior of the rotating shaft sleeve 210. The hinge portion 323 in the middle of the self-aligning rocker arm 320 is connected to the hinge seat 312, so that the self-aligning rocker arm 320 can swing around the hinge point formed by the connection between the hinge portion 323 and the hinge seat 312.

[0040] The self-aligning rocker arm 320 has an abutment end 321 and a connecting end 322. The abutment end 321 extends toward the self-aligning member 110 and abuts against the self-aligning member 110. The connecting end 322 is hinged to the transmission connecting rod 410. The abutment end 321 and the connecting end 322 are located on both sides of the hinge seat 312, which can make the self-aligning rocker arm 320 form a lever structure. After the self-aligning member 110 drives the abutment end 321 to change position, the connecting end 322 will change position through the lever principle. Then, the first end of the transmission connecting rod 410 will slide inside the slide groove 311 through the connecting end 322.

[0041] It should be noted that in this application, the self-aligning component 110 pushes the abutment end 321 of the self-aligning rocker arm 320, causing the self-aligning rocker arm 320 to swing around its hinge point with the hinge seat 312. The connecting end 322 at the other end of the self-aligning rocker arm 320 also swings accordingly. When the connecting end 322 swings, it will drive the first end of the transmission connecting rod 410 to slide in the slide groove 311, thereby changing the eccentricity. The axial linear motion of the self-aligning component 110 can be efficiently converted into the sliding motion of the transmission connecting rod 410 in the slide groove 311. The overall structure is compact, the conversion efficiency is high, and the adaptability is strong.

[0042] In some embodiments of this application, please refer to Figures 13 to 15 The self-aligning rocker arm 320 is simplified into a single lever component. Figure 15 In this equation, L1 is the lever length from the abutment end 321 to the hinge part 323, L2 is the lever length from the connecting end 322 to the hinge part 323, the cone angle of the adjusting surface 111 is α, F1 is the axial force applied by the self-aligning member 110 to the abutment end 321, and F2 is the reset spring force applied by the reset member 330 to the first end of the transmission connecting rod 410. F2 = L1 / L2 * cotα * F1, and the spring compression coefficient of the reset member 330 can be designed based on this formula. Simultaneously, considering the lever ratio, the driving torque of the rotary drive member 120 in the self-aligning mechanism 100 is calculated, thus completing the selection of the motor (i.e., the rotary drive member 120) in the adjusting mechanism.

[0043] Figure 15 In the figure, △s1 is the displacement of the contact end 321 of the self-aligning rocker arm 320 in the radial direction of the self-aligning component 110, △s2 is the displacement of the first end of the transmission connecting rod 410 in the radial direction of the first planetary gear 310 (i.e., the adjustment amount of the eccentricity), △h is the displacement of the self-aligning component 110 in the axial direction, and △s2=L2 / L1*△h / tanα.

[0044] According to the above formula, the radial displacement (i.e., Δs1) that the self-aligning component 110 needs to drive the self-aligning rocker arm 320 to achieve can be determined based on the self-aligning range (i.e., Δs2) and the lever ratio; then the axial travel (i.e., Δh) of the self-aligning component 110 can be determined based on the adjustment accuracy / space limitation, thus completing the determination of the cone angle (i.e., α) of the adjustment surface 111.

[0045] In the above embodiment, a short transmission chain is formed by the servo motor (i.e., the rotary drive component 120), the threaded pair (i.e., the adjusting screw 130 and the self-aligning component 110), and the self-aligning rocker arm 320 lever. This reduces cumulative deviation and makes the position adjustment accuracy of the transmission link 410 more precise, thereby making the eccentricity of the first end of the transmission link 410 from the axis of the first planetary gear 310 more accurate. The radial position of the component (i.e., the first end of the transmission link 410) on the rotating component (i.e., the first planetary gear 310) can be continuously adjusted by the stationary component (i.e., the servo motor).

[0046] In some embodiments of this application, please refer to Figure 13 and Figure 14 The first planetary gear 310 also has a limiting groove 313 that communicates with the slide groove 311. The reset member 330 is set in the limiting groove 313 and can abut against the first end of the transmission connecting rod 410 located in the slide groove 311. The limiting groove 313 can guide the extension and retraction direction of the reset member 330 to prevent the reset member 330 from twisting and can ensure the accuracy of the first end of the transmission connecting rod 410 sliding in the slide groove 311.

[0047] In some embodiments of this application, please refer to Figure 13 and Figure 14 The first planetary gear set 300 also includes a limiting cover plate 340, which is disposed on the opening side of the limiting groove 313 to prevent the reset member 330 from dislodging from the limiting groove 313. The limiting cover plate 340 has a U-shaped opening groove that matches the size of the slide groove 311 to prevent the setting of the limiting cover plate 340 from interfering with the sliding of the transmission connecting rod 410 in the slide groove 311.

[0048] At the same time, the inner walls of the limiting cover plate 340 and the limiting groove 313 can also limit the range of movement of the first end of the transmission connecting rod 410 along the axial direction of the first planetary gear 310 (i.e. Figure 14 (in the left and right directions), so that the first end of the transmission connecting rod 410 maintains a stable sliding state within the slide groove 311.

[0049] In some embodiments of this application, please refer to Figure 17 The rotating shaft sleeve 210 includes a cylindrical rotating shaft surface 211 for rotatably connecting with the rotating mating surface 314 of the first planetary gear 310. The self-aligning component 110 of the self-aligning mechanism 100 and the hinge seat 312 of the first planetary gear 310 can extend from both ends of the rotating shaft sleeve 210 and be assembled and abutted within the accommodating space 212 inside the rotating shaft sleeve 210. The sleeve wall can isolate and protect components such as the self-aligning component 110 and the self-aligning rocker arm 320, preventing external factors from affecting the fit between them. A fixing part 213 is also provided on the side of the rotating shaft sleeve 210 facing the self-aligning mechanism 100 for fixed connection with the self-aligning mechanism 100.

[0050] In some embodiments of this application, please refer to Figure 3 , Figure 4 , Figure 5 and Figure 6The all-gear continuously variable speed control device also includes a fixed shaft assembly 500, an input gear ring 600, a second planetary gear set 700, and an output gear ring 800. The fixed shaft assembly 500 includes a fixed shaft body 510. A planetary support 200 has a shaft hole 220 for assembly with the fixed shaft body 510, so that the planetary support 200 is coaxially fixed on the fixed shaft body 510. The input gear ring 600 and the output gear ring 800 are both coaxially rotatably mounted on the fixed shaft body 510. The input gear ring 600 meshes with the first planetary gear set 300, and the output gear ring 800 meshes with the second planetary gear set 700. The connecting rod assembly 400 is connected to the first planetary gear set 300 and the second planetary gear set 700 respectively, enabling the sequential transmission of power through the input gear ring 600, the first planetary gear set 300, the connecting rod assembly 400, the second planetary gear set 700, and the output gear ring 800. Figures 3 to 6 As shown.

[0051] In some embodiments of this application, please refer to Figure 3 , Figure 6 and Figure 12 The second planetary gear set 700 includes a second planetary gear 710. The second end of the transmission link 410 is rotatably connected to the second planetary gear 710. The second planetary gear 710 can be driven to mesh with the output gear ring 800 through the second end of the transmission link 410, thereby driving the output gear ring 800 to rotate.

[0052] The number of self-aligning mechanisms 100, rotating shaft sleeves 210, first planetary gears 310, self-aligning rocker arms 320, reset components 330, and transmission connecting rods 410 are all multiple. The multiple self-aligning mechanisms 100, multiple rotating shaft sleeves 210, multiple first planetary gears 310, multiple self-aligning rocker arms 320, multiple transmission connecting rods 410, and multiple second planetary gears 710 are arranged in a one-to-one correspondence. The position adjustment of multiple transmission connecting rods 410 can be achieved through multiple self-aligning mechanisms 100, thereby achieving the adjustment of the eccentricity of multiple first planetary gears 310.

[0053] Specifically, the number of the self-aligning mechanism 100, the rotating shaft sleeve 210, the first planetary gear 310, the self-aligning rocker arm 320, the reset component 330, and the transmission connecting rod 410 are all four, such as Figure 3 As shown.

[0054] It should be noted that when the first planetary gear 310 rotates, it will drive the first end of the transmission link 410 to rotate around the axis of the first planetary gear 310, and the position of the entire transmission link 410 will move. The second end of the transmission link 410 will also drive the second planetary gear 710 to move, and the second planetary gear 710 will always maintain meshing with the output gear ring 800.

[0055] In some embodiments of this application, please refer to Figure 5, Figure 6 , Figure 11 , Figure 12 and Figure 13 The transmission link 410 includes a first link 411, a second link 412, and a third link 413. The first link 411 and the third link 413 are respectively perpendicular to the two ends of the second link 412. The length direction of the first link 411 and the third link 413 is parallel to the axial direction of the fixed shaft body 510, and the first link 411 and the third link 413 extend in opposite directions. The first link 411 is configured as the first end of the transmission link 410. The first link 411 is connected to the first planetary gear 310 and the self-aligning rocker arm 320. The first link 411 can slide in the slide groove 311. The distance between the axis of the first link 411 and the axis of the first planetary gear 310 is the eccentricity. The third link 413 is configured as the second end of the transmission link 410. The third link 413 is rotatably connected to the second planetary gear 710, which can drive the second planetary gear 710 to change position in the circumferential direction of the output gear ring 800.

[0056] In some embodiments of this application, please refer to Figure 5 , Figure 6 , Figure 11 and Figure 16 The transmission link 410 has a Z-shaped structure so that it can be connected to the first planetary gear set 300 and the second planetary gear set 700 on both sides of the transmission link 410 respectively. This allows for the staggered distribution of multiple first planetary gears 310 and multiple second planetary gears 710 in the circumferential direction without the need for an additional phase adjustment mechanism.

[0057] In some embodiments of this application, please refer to Figure 14 and Figure 16 The first rod 411 is provided with an abutment surface 4111 for abutting against the reset member 330, so as to increase the contact area between the reset member 330 and the first rod 411 and improve the abutment reliability between the reset member 330 and the first rod 411.

[0058] The first rod 411 has a D-shaped cross-section, which prevents it from rotating during sliding within the groove 311, thus avoiding any impact on the connection between the transmission connecting rod 410, the self-aligning rocker arm 320, and the second planetary gear 710. The D-shaped cross-section also increases the contact area between the first rod 411 and the inner wall of the groove 311, reducing the contact stress between them and minimizing wear on the first rod 411.

[0059] The first rod 411 is also provided with a rocker arm hinge hole 4112 for hinged with the self-aligning rocker arm 320, which can facilitate the movement of the first rod 411 by swinging the self-aligning rocker arm 320.

[0060] In some embodiments of this application, please refer to Figure 11 The first member 411 and the second member 412 are rotatably connected, and there is an included angle β between the abutment surface 4111 and the centerline of the second member 412. The size of β can change with the rotation of the first member 411 relative to the second member 412. The third member 413 and the second member 412 can be fixedly connected or rotatably connected, both of which can achieve the purpose of this application.

[0061] Preferably, the third link 413 and the second link 412 are also rotatably connected, which can improve the smoothness of power transmission when the transmission link is transmitting power.

[0062] In some embodiments of this application, please refer to Figure 3 and Figure 6 The all-gear stepless speed regulating device also includes a spacing maintaining component 900. The spacing maintaining component 900 includes a support roller 910 and multiple connecting rod rollers 920. The support roller 910 is coaxially mounted on the fixed shaft body 510. The multiple connecting rod rollers 920 are rotatably connected to the second end (i.e., the third rod 413) of multiple transmission connecting rods 410 respectively, and the multiple connecting rod rollers 920 are coaxially mounted with multiple second planetary gears 710 respectively. The outer peripheral surface of the support roller 910 is in contact with the outer peripheral surface of the multiple connecting rod rollers 920, which can ensure that the distance from the axis of the multiple connecting rod rollers 920 to the axis of the support roller 910 is the same, thereby ensuring that the distance from the axis of the multiple second planetary gears 710 to the axis of the fixed shaft body 510 is the same, and thus ensuring that the multiple second planetary gears 710 always mesh correctly with the output gear ring 800.

[0063] It should be noted that during operation, the radial outer side of the second planetary gear 710 (i.e. the side away from the fixed shaft body 510) is directly limited by the output gear ring 800, and the radial inner side of the second planetary gear 710 is indirectly limited by the contact of the support roller 910 and the connecting rod roller 920. This can force the distance from all the second planetary gears 710 to the axis of the fixed shaft body 510 to be equal, and ultimately the meshing clearance between all the second planetary gears 710 and the output gear ring 800 is consistent, so there will be no uneven wear or tooth stripping.

[0064] In some embodiments of this application, please refer to Figure 13 Washers are provided on both sides of the connecting rod roller 920 in order to maintain the distance between the two side surfaces of the connecting rod roller 920 and the second rod 412 and the second planetary gear 710, so as to avoid mutual interference between the rotation of the connecting rod roller 920 and the rotation of the second planetary gear 710, and ensure the accuracy of the second planetary gear 710 driving the output gear ring 800 to rotate.

[0065] In some embodiments of this application, please refer to Figure 1 , Figure 2 and Figure 3 The all-gear continuously variable speed control device also includes a housing assembly 1000, which includes a first housing 1010 and a second housing 1020. The first housing 1010 and the second housing 1020 are both coaxially rotatably mounted on the fixed shaft body 510. The first housing 1010 and the second housing 1020 are both provided with transmission connection parts, which can be used to connect with the power input component and the power output component, respectively.

[0066] Specifically, the first housing 1010 has a first transmission connection part 1011 on the side facing away from the second housing 1020 for connecting with the power input component, and the second housing 1020 has a second transmission connection part 1021 on the side facing away from the first housing 1010 for connecting with the power output component.

[0067] Both the first housing 1010 and the second housing 1020 are semi-enclosed structures, and the opening of the first housing 1010 is opposite to the opening of the second housing 1020. There is a preset gap between the first housing 1010 and the second housing 1020 to avoid mutual interference between the rotation of the first housing 1010 and the rotation of the second housing 1020.

[0068] The first housing 1010 has a first accommodating cavity inside, where the self-aligning mechanism 100, planetary support 200, first planetary gear set 300, and input gear ring 600 are all disposed. The first housing 1010 can protect the self-aligning mechanism 100, planetary support 200, first planetary gear set 300, and input gear ring 600. The first housing 1010 is fixedly connected to the input gear ring 600 (e.g., with an interference fit) and can rotate synchronously with the input gear ring 600 to realize power input.

[0069] The second housing 1020 has a second accommodating cavity inside, where the second planetary gear set 700 and the output gear ring 800 are disposed. The second housing 1020 can protect the second planetary gear set 700 and the output gear ring 800. The second housing 1020 is fixedly connected to the output gear ring 800 (e.g., with an interference fit) and can rotate synchronously with the output gear ring 800 to realize power output.

[0070] It should be noted that the all-gear continuously variable speed control device of this application can be a reducer or a transmission. It can realize the transmission of power and the stepless adjustment of speed ratio through the meshing of all gears. When the all-gear continuously variable speed control device (such as a reducer) of this application is applied to the powertrain, it can realize stepless speed regulation of speed ratio from 0 to 6.

[0071] In some embodiments of this application, please refer to Figure 1 , Figure 2 and Figure 18The fixed shaft assembly 500 further includes a first bearing 520, a second bearing 530, a third bearing 540, and a fourth bearing 550. The first bearing 520 and the third bearing 540 are used to achieve a rotational connection between the first housing 1010 and the fixed shaft body 510, allowing the first housing 1010 and the input gear ring 600 to rotate smoothly. To prevent axial movement of the third bearing 540, a first pressure ring 560 and a second pressure ring 570 are respectively provided on both axial sides of the third bearing 540. The second bearing 530 and the fourth bearing 550 are used to achieve a rotational connection between the second housing 1020 and the fixed shaft body 510, allowing the second housing 1020 and the output gear ring 800 to rotate smoothly.

[0072] The fixed shaft body 510 is provided with shoulders for axially limiting the planetary support 200 and the support roller 910 respectively. The side of the planetary support 200 facing away from the shoulder can be limited by the second pressure ring 570, and the side of the support roller 910 facing away from the shoulder can be limited by the third pressure ring 580, thereby ensuring the positional accuracy of the planetary support 200 and the support roller 910.

[0073] In some embodiments of this application, please refer to Figures 1 to 18 The aforementioned all-gear continuously variable speed control device is a speed reducer, and its speed regulation process is as follows: Step 1: The self-aligning mechanism 100 controls the movement of the self-aligning component 110 along its axial direction. The abutting end 321 of the self-aligning rocker arm 320 is pushed by the adjusting surface 111 of the self-aligning component 110. The self-aligning rocker arm 320 swings and drives the first rod 411 of the transmission connecting rod 410 to move in the slide groove 311, so that the axis of the first rod 411 and the axis of the first planetary gear 310 have a suitable eccentricity. Step 2: The first housing 1010 rotates synchronously with the input gear ring 600. The input gear ring 600 meshes with multiple first planetary gears 310 in the first planetary gear set 300. When the first planetary gears 310 rotate, the first link 411 of the transmission link 410 moves in a circular motion with the first planetary gear 310, and the second link 412 and the third link 413 move accordingly. Step 3: The third link 413 drives the connecting rod roller 920 and the second planetary gear 710 to move in position. The connecting rod roller 920 and the support roller 910 always maintain contact. The second planetary gear 710 and the output gear ring 800 always maintain accurate meshing. The output gear ring 800 is driven by multiple second planetary gears 710 in turn to realize power output.

[0074] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0075] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0076] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A continuously variable speed control device with all gears, characterized in that, include: The self-aligning mechanism (100) includes a movable self-aligning component (110); Planetary support (200), the planetary support (200) includes a fixedly disposed rotating shaft sleeve (210); The first planetary gear set (300) includes a first planetary gear (310), a self-aligning rocker arm (320) and a reset member (330). The first planetary gear (310) has a groove (311) extending radially thereon. Linkage assembly (400), the linkage assembly (400) includes a transmission link (410); The first planetary gear (310) is coaxially rotatably mounted on the rotating shaft sleeve (210); the first end of the transmission connecting rod (410) extends into the slide groove (311); the reset member (330) is connected to the first end of the first planetary gear (310) and the first end of the transmission connecting rod (410) respectively; the self-aligning rocker arm (320) is hinged to the first end of the first planetary gear (310) and the first end of the transmission connecting rod (410) respectively; the surface of the self-aligning member (110) abuts against the self-aligning rocker arm (320); the self-aligning member (110) can move along the axial direction of the rotating shaft sleeve (210) and drive the self-aligning rocker arm (320) to swing; the self-aligning rocker arm (320) can drive the first end of the transmission connecting rod (410) to move along the length direction of the slide groove (311).

2. The all-gear stepless speed regulating device according to claim 1, characterized in that, The outer peripheral surface of the self-aligning component (110) is provided with an adjustment surface (111), which is a conical surface or a hemispherical surface, and the axis of the adjustment surface (111) coincides with the axis of the first planetary gear (310).

3. The all-gear stepless speed regulating device according to claim 1, characterized in that, The self-aligning mechanism (100) further includes a rotary drive (120), an adjusting screw (130), and a guide (140). The rotary drive (120) is coaxially arranged with the adjusting screw (130). The adjusting screw (130) is threadedly connected to the self-aligning component (110). The self-aligning component (110) and the guide (140) are slidably connected along the axial direction of the self-aligning mechanism (100).

4. The all-gear stepless speed regulating device according to claim 1, characterized in that, The first planetary gear (310) has a hinge seat (312) extending into the interior of the shaft sleeve (210), and the self-aligning rocker arm (320) is connected to the hinge seat (312); The self-aligning rocker arm (320) has an abutment end (321) and a connecting end (322). The abutment end (321) extends toward the self-aligning member (110) and abuts against the self-aligning member (110). The connecting end (322) is hinged to the transmission link (410). The abutment end (321) and the connecting end (322) are located on both sides of the hinge seat (312).

5. The all-gear stepless speed regulating device according to claim 1, characterized in that, The first planetary gear (310) also has a limiting groove (313) that communicates with the slide groove (311), and the reset member (330) is disposed in the limiting groove (313).

6. The all-gear stepless speed regulating device according to any one of claims 1 to 5, characterized in that, It also includes a fixed shaft assembly (500), an input gear ring (600), a second planetary gear set (700), and an output gear ring (800); the fixed shaft assembly (500) includes a fixed shaft body (510), the planetary support (200) is coaxially fixed on the fixed shaft body (510), the input gear ring (600) and the output gear ring (800) are coaxially rotatably mounted on the fixed shaft body (510), the input gear ring (600) meshes with the first planetary gear set (300), the output gear ring (800) meshes with the second planetary gear set (700), and the connecting rod assembly (400) is connected to the first planetary gear set (300) and the second planetary gear set (700) respectively.

7. The all-gear stepless speed regulating device according to claim 6, characterized in that, The second planetary gear set (700) includes a second planetary gear (710), and the second end of the transmission link (410) is rotatably connected to the second planetary gear (710); The number of the self-aligning mechanism (100), the rotating shaft sleeve (210), the first planetary gear (310), the self-aligning rocker arm (320), the reset member (330), and the transmission link (410) are all multiple, and the multiple self-aligning mechanisms (100), multiple rotating shaft sleeves (210), multiple first planetary gears (310), multiple self-aligning rocker arms (320), multiple transmission links (410), and multiple second planetary gears (710) are arranged in a one-to-one correspondence.

8. The all-gear stepless speed regulating device according to claim 7, characterized in that, The transmission link (410) includes a first link (411), a second link (412), and a third link (413). The first link (411) and the third link (413) are respectively arranged perpendicularly to the two ends of the second link (412). The length direction of the first link (411) and the third link (413) is parallel to the axial direction of the fixed shaft body (510), and the first link (411) and the third link (413) extend in opposite directions. The first link (411) is connected to the first planetary gear (310) and the self-aligning rocker arm (320), and the third link (413) is rotatably connected to the second planetary gear (710).

9. The all-gear stepless speed regulating device according to claim 7, characterized in that, It also includes a spacing retention assembly (900), which includes a support roller (910) and a plurality of connecting rod rollers (920). The support roller (910) is coaxially disposed on the fixed shaft body (510). The plurality of connecting rod rollers (920) are rotatably connected to the second ends of the plurality of transmission connecting rods (410) respectively, and the plurality of connecting rod rollers (920) are coaxially disposed with the plurality of second planetary gears (710) respectively. The outer peripheral surface of the support roller (910) is in contact with the outer peripheral surface of the plurality of connecting rod rollers (920).

10. The all-gear stepless speed regulating device according to claim 6, characterized in that, It also includes a housing assembly (1000), which includes a first housing (1010) and a second housing (1020). The first housing (1010) and the second housing (1020) are both rotatably mounted on the fixed shaft body (510) on the same axis. Both the first housing (1010) and the second housing (1020) are provided with a transmission connection part. The first housing (1010) and the second housing (1020) are both semi-enclosed structures, and the opening of the first housing (1010) is opposite to the opening of the second housing (1020). The first housing (1010) has a first accommodating cavity inside, and the self-aligning mechanism (100), the planetary support (200), the first planetary gear set (300) and the input gear ring (600) are all disposed inside the first accommodating cavity, and the first housing (1010) is fixedly connected to the input gear ring (600); The second housing (1020) has a second accommodating cavity inside, the second planetary gear set (700) and the output gear ring (800) are disposed inside the second accommodating cavity, and the second housing (1020) is fixedly connected to the output gear ring (800).

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