Flexible switching mechanism among multiple power transmission channels

Abstract

The invention provides a flexible switching mechanism among multiple power transmission channels, and relates to the technical field of power transmission, the flexible switching mechanism comprises a chassis, a power mechanism is arranged on the chassis, and an output shaft of the power mechanism is connected with a main transmission shaft; the power transmission channel is connected with the main transmission shaft, the power transmission channel comprises a first power transmission channel and a second power transmission channel, flexible transmission mechanisms are arranged on the first power transmission channel and the second power transmission channel, and the arrangement mode of the second power transmission channel is opposite to that of the first power transmission channel; the switching sliding block is movably arranged between the first power transmission channel and the second power transmission channel and used for pushing the first power transmission channel or the second power transmission channel to be connected with the main transmission shaft. When different types of loads are switched, gear impact in the switching process is avoided, and the stability in the high-load transmission process is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission, and particularly to a flexible switching mechanism between multiple power transmission channels. Background Art

[0002] Power switching has a large number of applications in life, such as the switching between the power systems of amphibious devices, the switching between the power systems of land-air dual-use devices, the switching between the power systems of hybrid oil-electric devices, etc. A power switching device needs to be provided during the working process of a system with one power input and multiple power outputs or a system with one power output and multiple power inputs.

[0003] Application No. CN202123033707.7 discloses a power switching device for an amphibious bus, which is characterized in that a plurality of output shafts are arranged in a gearbox, and the output shafts are switched through electromagnetic clutches, so as to realize the switching of different power outputs. However, since this invention directly uses electromagnetic clutches to control the switching, it is difficult to meet the stable drive under high-load conditions. Application No. CN201620078531.7 discloses a new amphibious vehicle water-land mode switching system, which is characterized in that when the shifting mechanism drives the shifting gear to mesh with the small synchronous pulley to the left through a connecting rod, the wheels can be driven to realize land driving, and when the shifting mechanism drives the shifting gear to mesh with the straight gear three to the right through a connecting rod, the blades can be driven to realize water driving. However, since this invention directly uses the shifting gear to control the switching, it cannot achieve flexible switching between different power outputs during the movement process. Application No. CN202210381386.X discloses an amphibious vehicle and its usage method, which is characterized in that the retraction and extension of the water deflectors on the wheels on the upper or lower side are controlled. When the water deflectors retract and extend on the lower side, land driving can be realized, and when the water deflectors retract and extend on the upper side, water driving can be realized. However, when the water deflectors of this invention are on the lower side, they are in contact with the land for a long time, resulting in relatively large wear. Application No. CN202210808540.7 discloses an air-land dual-purpose drive plug-in module and the obtained unmanned aerial vehicle, which is characterized in that this invention uses a ducted rotor as the power output source for flight, uses the outer circle of the duct as the power output source for land travel, and realizes the switching between the flight and driving states through a clutch. After being designed into a plug-in module, it can be directly plugged and used with the motor of a general aircraft. However, since this invention uses a clutch to control the switching, it is difficult to meet the stable drive under high-load conditions. Application No. CN201710361091.5 discloses a vehicle fuel-electric hybrid converter, which is characterized in that when the fuel-driven clutch fork shaft is manipulated, under the action of the fuel-driven clutch fork and the fuel-driven clutch pressure plate, the fuel-driven clutch driving disc is separated from the fuel-driven clutch driven disc, and the vehicle enters the state of electric-only drive; when the electric-driven clutch fork shaft is manipulated, under the action of the electric-driven clutch fork and the electric-driven clutch pressure plate, the electric-driven clutch driving disc is separated from the electric-driven clutch driven disc. If the fuel-driven clutch driving disc and the fuel-driven clutch driven disc are in the engaged state at this time, the vehicle enters the state of fuel-only drive. However, since this invention uses a combination of a clutch and a fork to control the switching, it is difficult to meet the stable drive under high-load conditions.

[0004] Therefore, the existing power switching devices are difficult to meet flexible switching while ensuring stable transmission during high-load transmission. Designing a more reasonable power switching method has become a problem that needs further research in this field currently. Summary of the Invention

[0005] The present invention provides a flexible switching mechanism between multiple power transmission channels, aiming to solve the technical problem that existing power switching devices are difficult to meet flexible switching while ensuring stable transmission during high-load transmission.

[0006] The present invention provides the following technical solutions to achieve the above object:

[0007] A flexible switching mechanism between multiple power transmission channels, comprising:

[0008] A chassis, on which a power mechanism is provided, and an output shaft of the power mechanism is connected to a main transmission shaft;

[0009] A power transmission channel, which is connected to the main transmission shaft. The power transmission channel includes a first power transmission channel and a second power transmission channel. A flexible transmission mechanism is provided on the first power transmission channel and the second power transmission channel, and the arrangement mode of the second power transmission channel is opposite to that of the first power transmission channel;

[0010] A switching slider, which is movably arranged between the first power transmission channel and the second power transmission channel and is used to push the first power transmission channel or the second power transmission channel to be connected to the main transmission shaft.

[0011] Furthermore, the output shaft includes an output shaft rod body, and a fourth straight tooth is sleeved on the output shaft rod body; the main transmission shaft includes a main transmission rod, a first straight tooth is provided on the upper part of the main transmission rod, a first special-shaped straight tooth is provided below the first straight tooth, a second straight tooth is provided below the first special-shaped straight tooth, a third straight tooth is provided below the second straight tooth, and a third special-shaped straight tooth is provided below the third straight tooth. The first straight tooth, the first special-shaped straight tooth, the second straight tooth, and the third straight tooth are arranged at intervals and are all sleeved on the main transmission rod with the main transmission rod as the rotation axis.

[0012] Furthermore, the flexible transmission mechanism includes a gear rod serving as a rotation axis, a gear rod cover is provided at the bottom of the gear rod, a sleeve is sleeved on the upper part of the gear rod, and a friction gear, a friction wheel, and a second special-shaped straight tooth are sequentially sleeved on the gear rod and the sleeve.

[0013] Furthermore, the gear rod is a three-layer cylinder structure with an increasing radius from top to bottom. The upper layer is the third cylinder of the gear rod, the middle layer is the second cylinder of the gear rod, and the lower layer is the first cylinder of the gear rod; friction gear clamping blocks are symmetrically provided on both sides of the third cylinder of the gear rod, and friction wheel clamping blocks are provided at one end of the friction gear clamping blocks in contact with the second cylinder; sleeve clamping through holes are symmetrically opened on the second cylinder of the gear rod and the first cylinder of the gear rod, and the sleeve clamping through holes penetrate through the second cylinder of the gear rod and the first cylinder of the gear rod; a first screw hole is provided on the bottom surface of the first cylinder of the gear rod.

[0014] Further, the gear lever cover includes a gear lever cover cylinder body, the top of the gear lever cover cylinder body is provided with a gear lever cover disc, sleeve spring fixing blocks are symmetrically arranged on the top surface of the gear lever cover disc, and sleeve spring fixing holes are provided in the sleeve spring fixing blocks; a number of second screw holes are penetrated through the gear lever cover disc.

[0015] Further, the friction gear is circumferentially provided with friction gear straight teeth, the top surface of the friction gear is provided with a friction gear friction surface, a first through hole is opened in the center of the friction gear, and a first groove is arranged around the first through hole.

[0016] Further, a friction wheel through hole is opened in the center of the friction wheel, symmetrically arranged friction wheel clamping grooves are opened in the friction wheel through hole, and a sleeve embedding groove is arranged around the friction wheel through hole; one side of the friction wheel is a smooth surface and the other side is a friction surface.

[0017] Further, the sleeve includes a sleeve shell arranged in a ring shape, the top of the sleeve shell is provided with a sleeve disc, a sleeve embedding ring is arranged inside the sleeve disc, sleeve limiting blocks are symmetrically arranged on the inner side of the sleeve shell, and sleeve spring connection holes are arranged on the sleeve limiting blocks.

[0018] Further, the top of the switching slider is provided with a first channel linkage ring and a first channel linkage sliding cylinder, one side of the first channel linkage sliding cylinder is connected to the switching mechanism sliding plate, and the other side of the first channel linkage sliding cylinder is connected with a second channel linkage cylinder connecting block; a switching mechanism spring connection hole is arranged at the lower end of the switching mechanism sliding plate, and a switching mechanism limiting boss is arranged at the outer side position of the switching mechanism sliding plate adjacent to the switching mechanism spring connection hole; a second channel linkage cylinder is connected to the second channel linkage cylinder connecting block, a second channel rod body connecting cylinder is arranged in the center of the second channel linkage cylinder, and a second channel rod body connecting hole is penetrated through the lower end of the second channel rod body connecting cylinder.

[0019] Further, the chassis includes a bottom shell. On one side of the top surface of the bottom shell, there is a power mechanism installation box. An engine or a motor is installed in the power mechanism installation box. On the top of the power mechanism installation box, there is a main transmission fixed boss; on one side of the power mechanism installation box, there is a first fixed boss of the second-channel rotating shaft. On one side of the first fixed boss of the second-channel rotating shaft, there is a second fixed boss of the second-channel rotating shaft; adjacent to the first fixed boss of the second-channel rotating shaft, there is a first fixed boss of the second rotating shaft of the second channel. On one side of the first fixed boss of the second rotating shaft of the second channel, there is a second fixed boss of the second rotating shaft of the second channel; between the first fixed boss of the second-channel rotating shaft and the second fixed boss of the second-channel rotating shaft, there is a boss of the second-channel rotating shaft. On one side of the boss of the second-channel rotating shaft, there is a boss of the first-channel rotating shaft; between the first fixed boss of the second rotating shaft of the second channel and the second fixed boss of the second rotating shaft of the second channel, there is a boss of the second rotating shaft of the second channel; on one side of the second fixed boss of the second-channel rotating shaft, there is a limit block of the switching mechanism. Opposite to the limit block of the switching mechanism, there is a connecting block of the switching mechanism spring. Opposite to the connecting block of the switching mechanism spring, there is a fixed boss of the switching buckle. On the top of the fixed boss of the switching buckle, there is a fixed groove of the switching buckle.

[0020] Advantages

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] The present invention adopts a design combining a friction wheel and a special-shaped straight tooth, which can avoid gear impact during the conversion between different types of loads and ensure the stability during high-load transmission; the present invention can realize the transmission of multiple loads through a single power device; the present invention realizes the same power output through the flexible switching between different power inputs. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below only relate to some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the main transmission shaft of the present invention;

[0026] Figure 3 It is a schematic diagram of the cooperation between the main transmission shaft and the output shaft of the present invention;

[0027] Figure 4Explosion diagram of the flexible transmission mechanism of the present invention;

[0028] Figure 5 Assembly drawing of the flexible transmission mechanism of the present invention;

[0029] Figure 6 View of the gear rod of the present invention Figure 1 Schematic diagram;

[0030] Figure 7 View of the gear rod of the present invention Figure 2 Schematic diagram;

[0031] Figure 8 Schematic diagram of the gear rod cover of the present invention;

[0032] Figure 9 Schematic diagram of the friction gear of the present invention;

[0033] Figure 10 Schematic diagram of the sleeve of the present invention;

[0034] Figure 11 Schematic diagram of the friction wheel of the present invention;

[0035] Figure 12 Schematic diagram of the second special-shaped straight tooth of the present invention;

[0036] Figure 13 Schematic diagram of the first power transmission channel of the present invention;

[0037] Figure 14 Schematic diagram of the cooperation between two power transmission channels of the present invention;

[0038] Figure 15 View of the chassis of the present invention Figure 1 Schematic diagram;

[0039] Figure 16 View of the chassis of the present invention Figure 2 Schematic diagram;

[0040] Figure 17 Schematic diagram of the switching slider of the present invention;

[0041] Figure 18 Schematic diagram of the cooperation of the switching mechanism of the present invention;

[0042] Figure 19 Schematic assembly diagram of the relevant mechanisms of two power transmission channels of the present invention; Detailed implementation method

[0043] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0044] It should be noted that in the present invention: The terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices; The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit that the indicated devices, elements, or components must have a specific orientation, or be constructed and operated in a specific orientation; The terms "first", "second", etc. are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence; The terms "installed", "set", "provided with", "connected", "connected to", "socketed", etc. should be understood in a broad sense; For example, it can be a fixed connection, a detachable connection, or an integral structure; It can be a mechanical connection or an electrical connection; It can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements, or components. And, in addition to being able to represent an orientation or positional relationship, some terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0045] Embodiment. A flexible switching mechanism between multiple power transmission channels, with the structure referring to Figures 1 to 19 , including a chassis 400, on which a power mechanism is provided, and the output shaft 110 of the power mechanism is connected to the main transmission shaft 100;

[0046] Power transmission channels, which are connected to the main transmission shaft 100. The power transmission channels include a first power transmission channel 3000 and a second power transmission channel 4000. A flexible transmission mechanism 200 is provided on the first power transmission channel 3000 and the second power transmission channel 4000, and the arrangement of the second power transmission channel 4000 is opposite to that of the first power transmission channel 3000;

[0047] The switching slider 500 is movably arranged between the first power transmission channel 3000 and the second power transmission channel 4000, and is used to push the first power transmission channel 3000 or the second power transmission channel 4000 to be connected to the main transmission shaft 100; wherein, through the arrangement of the flexible transmission mechanism 200, the first power transmission channel 3000 and the second power transmission channel 4000 achieve flexible switching during the process of power transmission channel transformation, that is, it avoids gear impact during the switching process and ensures stable transmission during high-load transmission.

[0048] The first power transmission channel 3000 is as Figure 13 shown. The first power transmission channel 3000 is mainly composed of a flexible transmission mechanism 200 and a first transmission gear 300. Fixing the first transmission gear 300 on the gear rod 280 of the flexible transmission mechanism 200 can form the first power transmission channel for driving load one;

[0049] The output shaft 110 includes an output shaft rod body 111, as Figure 3 shown. A fourth straight tooth 112 is sleeved on the output shaft rod body 111; the fourth straight tooth 112 remains meshed with the first straight tooth 102 on the main transmission shaft 100; power is output through the output shaft 110 and then transmitted to the main transmission shaft 100 through the meshing of the fourth straight tooth 112 and the first straight tooth 102;

[0050] The main transmission shaft 100 includes a main transmission rod 101, as Figure 2 shown. A first straight tooth 102 is arranged on the upper part of the main transmission rod 101, a first special-shaped straight tooth 103 is arranged below the first straight tooth 102, a second straight tooth 104 is arranged below the first special-shaped straight tooth 103, a third straight tooth 105 is arranged below the second straight tooth 104, a third special-shaped straight tooth 106 is arranged below the third straight tooth 105. The first straight tooth 102, the first special-shaped straight tooth 103, the second straight tooth 104 and the third straight tooth 105 are arranged at intervals and are all sleeved on the main transmission rod 101 with the main transmission rod 101 as the rotation axis.

[0051] The flexible transmission mechanism includes a gear rod 280 arranged as a rotation axis, as Figure 4 and 5 shown. A gear rod cover 270 is arranged at the bottom of the gear rod 280, a sleeve 240 is sleeved on the upper part of the gear rod 280, and a friction gear 260, a friction wheel 230 and a second special-shaped straight tooth 210 are sequentially sleeved on the gear rod 280 and the sleeve 240. The second special-shaped straight tooth 210 is as Figure 12As shown, the second special-shaped straight tooth 210 is disc-shaped, with the main body being the second special-shaped straight tooth disc 211. The circumference of the ring of the second special-shaped straight tooth disc 211 is the second special-shaped straight tooth tip 212. The upper end of the second special-shaped straight tooth tip 212 is set to be sharp. The center of the second special-shaped straight tooth disc 211 is the second special-shaped straight tooth through hole 213, and near the second special-shaped straight tooth through hole 213, there is a second special-shaped straight tooth clamping groove 214.

[0052] The gear rod 280 is a three-layer cylindrical structure with an increasing radius from top to bottom. As Figure 6 and 7 shown, the upper layer is the third cylinder 283 of the gear rod, the middle layer is the second cylinder 282 of the gear rod, and the lower layer is the first cylinder 281 of the gear rod. On both sides of the third cylinder 283 of the gear rod, there are symmetrically arranged friction gear clamping blocks 286. One end of the friction gear clamping block 286 in contact with the second cylinder 282 is provided with a friction wheel clamping block 285. On the second cylinder 282 and the first cylinder 281 of the gear rod, there are symmetrically arranged sleeve clamping through holes 284, and the sleeve clamping through holes 284 penetrate through the second cylinder 282 and the first cylinder 281 of the gear rod. On the bottom surface of the first cylinder 281 of the gear rod, there is a first screw hole 287. The first screw hole 287 is used to connect and fix the gear rod 280.

[0053] The gear rod cover 270 includes a gear rod cover cylinder 271. As Figure 8 shown, at the top of the gear rod cover cylinder 271, there is a gear rod cover disc 272. On the top surface of the gear rod cover disc 272, there are symmetrically arranged sleeve spring fixing blocks 273, and on the sleeve spring fixing blocks 273, there are sleeve spring fixing holes 274. Through the gear rod cover disc 272, there are provided a number of second screw holes 275.

[0054] The friction gear 260 is circumferentially provided with friction gear straight teeth 264. As Figure 9 shown, on the top surface of the friction gear 260, there is a friction gear friction surface 261. In the center of the friction gear 260, there is a first through hole 263, and around the first through hole 263, there is a first groove 262.

[0055] In the center of the friction wheel 230, there is a friction wheel through hole 232. As Figure 11 shown, in the friction wheel through hole 232, there are symmetrically arranged friction wheel clamping grooves 234, and around the friction wheel through hole 232, there is a sleeve embedding groove 233. One side of the friction wheel 230 is a smooth surface, and the other side is a friction surface 231.

[0056] The sleeve 240 includes a sleeve shell 241 arranged in a ring shape. As Figure 10As shown, a sleeve plate 242 is provided at the top of the sleeve housing 241. A sleeve insertion ring 243 is provided inside the sleeve plate 242. Sleeve limiting blocks 244 are symmetrically provided on the inner side of the sleeve housing 241. Sleeve spring connection holes 245 are provided on the sleeve limiting blocks 244.

[0057] A first channel linkage ring 504 and a first channel linkage sliding cylinder 505 are provided at the top of the switching slider 500. One side of the first channel linkage sliding cylinder 505 is connected to the switching mechanism sliding plate 501, and the other side is connected to a second channel linkage cylinder connection block 502; a switching mechanism spring connection hole 508 is provided at the lower end of the switching mechanism sliding plate 501, and a switching mechanism limiting boss 509 is provided at the outer position of the switching mechanism sliding plate 501 adjacent to the switching mechanism spring connection hole 508; a second channel linkage cylinder 503 is connected to the second channel linkage cylinder connection block 502. A second channel rod connection cylinder 506 is provided at the center of the second channel linkage cylinder 503, and a second channel rod connection hole 507 is provided through the lower end of the second channel rod connection cylinder 506; as Figure 17 As shown, the upper part of the switching slider 500 is the first channel linkage ring 504 and the first channel linkage sliding cylinder 505. The first channel linkage ring 504 is located above the first channel linkage sliding cylinder 505. One side of the first channel linkage sliding cylinder 505 is connected to the switching mechanism sliding plate 501, and the other side is connected to the second channel linkage cylinder connection block 502. A switching mechanism spring connection hole 508 is provided at the lower end of the switching mechanism sliding plate 501, and a switching mechanism limiting boss 509 is provided at the outer position of the switching mechanism sliding plate 501 adjacent to the switching mechanism spring connection hole 508. A second channel linkage cylinder 503 is connected to the second channel linkage cylinder connection block 502. A second channel rod connection cylinder 506 is provided at the center of the second channel linkage cylinder 503, and a second channel rod connection hole 507 is provided through the lower end of the second channel rod connection cylinder 506.

[0058] The chassis 400 includes a bottom housing 401. On one side of the top surface of the bottom housing 401, there is a power mechanism installation box 402. An engine or a motor is installed in the power mechanism installation box 402. On the top of the power mechanism installation box 402, there is a main transmission fixed boss 403. On one side of the power mechanism installation box 402, there is a first fixed boss 404 for the second-channel rotating shaft. On one side of the first fixed boss 404 for the second-channel rotating shaft, there is a second fixed boss 410 for the second-channel rotating shaft. Adjacent to the first fixed boss 404 for the second-channel rotating shaft, there is a first fixed boss 405 for the second rotating shaft of the second channel. On one side of the first fixed boss 405 for the second rotating shaft of the second channel, there is a second fixed boss 407 for the second rotating shaft of the second channel. Between the first fixed boss 404 for the second-channel rotating shaft and the second fixed boss 410 for the second-channel rotating shaft, there is a boss 408 for the second-channel rotating shaft. On one side of the boss 408 for the second-channel rotating shaft, there is a boss 409 for the first-channel rotating shaft. Between the first fixed boss 405 for the second rotating shaft of the second channel and the second fixed boss 407 for the second rotating shaft of the second channel, there is a boss 406 for the second rotating shaft of the second channel. On one side of the second fixed boss 410 for the second-channel rotating shaft, there is a limit block 411 for the switching mechanism. Opposite to the limit block 411 for the switching mechanism, there is a connecting block 412 for the switching mechanism spring. Opposite to the connecting block 412 for the switching mechanism spring, there is a fixed boss 413 for the switching buckle. On the top of the fixed boss 413 for the switching buckle, there is a fixed groove 414 for the switching buckle.

[0059] Such as Figure 15 And Figure 16As shown, the lowermost end of the chassis 400 is the bottom housing 401. A power mechanism mounting box 402 is provided at one corner of the bottom housing 401. An engine or a motor is installed in the power mechanism mounting box 402, and a main transmission shaft fixing boss 403 is provided at the top of the power mechanism mounting box 402. A first fixing boss 404 for the second-channel rotating shaft is provided on the bottom housing 401 adjacent to one side of the power mechanism mounting box 402. A second fixing boss 410 for the second-channel rotating shaft is provided on the bottom housing 401 near the middle position corresponding to the first fixing boss 404 for the second-channel rotating shaft. A first fixing boss 405 for the second rotating shaft of the second channel is provided at a position adjacent to the first fixing boss 404 for the second-channel rotating shaft. A second fixing boss 407 for the second rotating shaft of the second channel is provided on the bottom housing 401 corresponding to the first fixing boss 405 for the second rotating shaft of the second channel. A boss 408 for the second-channel rotating shaft is provided on the housing 401 at the middle position between the first fixing boss 404 for the second-channel rotating shaft and the second fixing boss 410 for the second-channel rotating shaft. A boss 406 for the second rotating shaft of the second channel is provided on the housing 401 at the middle position between the first fixing boss 405 for the second rotating shaft of the second channel and the second fixing boss 407 for the second rotating shaft of the second channel. A boss 409 for the first-channel rotating shaft is provided on the bottom housing 401 near the boss 408 for the second-channel rotating shaft. A limit block 411 for the switching mechanism is provided near the second fixing boss 410 for the second-channel rotating shaft. A connecting block 412 for the switching mechanism spring is provided near the limit block 411 for the switching mechanism. A fixing boss 413 for the switching buckle is provided near the connecting block 412 for the switching mechanism spring. A fixing groove 414 for the switching buckle is provided at the upper part of the fixing boss 413 for the switching buckle.

[0060] As Figures 4 to 13As shown in the figure, the first through hole 263 on the friction gear 260 is sleeved on the first cylinder 281 of the gear rod 280, and the friction surface 261 of the friction gear remains upward. The sleeve 240 is sleeved into the second cylinder 282 of the gear rod 280. The inner wall of the sleeve shell 241 is in contact with the outer surface of the second cylinder 282 of the gear rod, and the sleeve limit block 244 is snapped into the sleeve clamping through hole 284. One end of a tension spring is inserted into the sleeve tension spring connection hole 245, and the other end is inserted into the sleeve tension spring fixing hole 274 on the gear rod cover 270. The sleeve tension spring fixing block 273 on the gear rod cover 270 is inserted into the sleeve clamping through hole 284 at the bottom surface of the gear rod 280. Then, a screw passes through the second screw hole 275 on the gear rod cover 270 and the first screw hole 287 on the gear rod 280, thereby fastening the gear rod cover 270 to the gear rod 280. The friction wheel through hole 232 on the friction wheel 230 is sleeved on the third cylinder 283 of the gear rod 280, and the friction surface 231 remains downward. The sleeve embedding groove 233 is embedded into the sleeve embedding ring 243, and the friction wheel 230 is fixedly connected to the sleeve 240. The friction wheel clamping groove 234 is sleeved on the friction wheel clamping block 285 of the gear rod 280. The second special-shaped straight tooth through hole 213 on the second special-shaped straight tooth 210 is sleeved on the third cylinder 283 of the gear rod 280, and the second special-shaped straight tooth clamping groove 214 is sleeved on the friction gear clamping block 286. The first transmission gear 300 is fixed to the top end of the gear rod 280. A compression spring is connected between the first transmission gear 300 and the second special-shaped straight tooth 210, which can keep the second special-shaped straight tooth 210 at one end far from the first transmission gear 300 when there is no external force. Of course, this can also be achieved by the mutual repulsion of magnets here.

[0061] As Figure 14 shown, the second power transmission channel 4000 is similar in style to the first power transmission channel 3000. It should be noted that the arrangement of each component between the second power transmission channel 4000 and the first power transmission channel 3000 is just the opposite, and the flexible transmission mechanism 200 on the second power transmission channel 400 uses a conventional rod as the rotating shaft, not the gear rod 280 as the rotating shaft. The power is transmitted to the first straight tooth 102 through the fourth straight tooth 112 on the output shaft 110. The power can be transmitted to the first power transmission channel 3000 through the first special-shaped straight tooth 103 and the second straight tooth 104, and the power can be transmitted to the second power transmission channel 4000 through the third straight tooth 105 and the third special-shaped straight tooth 106. When the power is transmitted to the first power transmission channel 3000, the second power transmission channel 4000 cannot receive the power transmission outward from the output shaft 110. Similarly, when the power is transmitted to the second power transmission channel 4000, the first power transmission channel 3000 cannot receive the power transmission outward from the output shaft 110.

[0062] As Figures 6 to 18 shown, the first-channel linkage sliding cylinder 505 on the switching slider 500 is sleeved into the gear rod 280, and the first-channel linkage ring 504 remains in contact with the smooth surface of the friction gear 260. The main function of the first-channel linkage ring 504 is to push the first power transmission channel 3000 upward. The second-channel rod connecting cylinder 506 on the switching slider 500 remains connected to the rotating shaft rod part on the second power transmission channel 4000, and the rotating shaft rod part on the second power transmission channel 4000 is fixed to the second-channel rod connecting cylinder 506 by screwing through the second-channel rod connecting hole 507. A compression spring is placed into the switching buckle fixing groove 414, and then the switching buckle 530 is installed in the switching buckle fixing groove 414. The switching mechanism limiting boss 509 is placed below the switching buckle 530. One end of the switching mechanism tension spring 540 is connected to the switching mechanism tension spring connecting hole 508, and the other end is connected to the through hole in the switching mechanism tension spring connecting block 412.

[0063] When the control makes the switching slider 500 move downward so that the switching mechanism limiting boss 509 is at the lower end position of the switching buckle 530, the second special-shaped straight tooth 210 and the first special-shaped straight tooth 103 are in a separated state, and the third special-shaped straight tooth 106 remains meshed with the special-shaped straight tooth part on the second power transmission channel 4000. At this time, the power of the output shaft 110 is transmitted into the second power transmission channel 4000. When the control makes the switching slider 500 move upward so that the switching mechanism limiting boss 509 is at the upper end position of the switching buckle 530, the second special-shaped straight tooth 210 and the first special-shaped straight tooth 103 are in a meshed state, and the third special-shaped straight tooth 106 is in a separated state from the special-shaped straight tooth part on the second power transmission channel 4000. At this time, the power of the output shaft 110 is transmitted into the first power transmission channel 3000.

[0064] As Figures 2 to 19As shown, the fourth straight tooth 112 on the output shaft 110 remains meshed with the first straight tooth 102 on the main transmission shaft 100. The third cover plate 640 is fixed on the main transmission shaft fixing boss 403 on the chassis 400, and at the same time, the upper end of the main transmission shaft 100 is fixed. Insert the rod body part of the combined gear 600 into the central hole of the second-channel second-rotating shaft boss 406, and fix the first cover plate 620 on the second-channel second-rotating shaft first fixing boss 405 and the second-channel second-rotating shaft second fixing boss 407 on the chassis 400, and at the same time, fix the combined gear 600. Keep the horizontal transmission bevel gear 611 on the horizontal transmission rod 610 meshed with the combined tooth bevel gear 602. Insert the rod body part of the second power transmission channel 4000 into the central round hole of the second-channel rotating shaft boss 408 on the chassis 400, and fix the second cover plate 630 on the second-channel rotating shaft first fixing boss 404 and the second-channel rotating shaft second fixing boss 410 on the chassis 400, and at the same time, fix the main body part of the second power transmission channel 4000. At this time, the combined tooth straight tooth 601 remains meshed with the second power transmission channel 4000. Insert the column body 271 of the gear rod cover on the gear rod cover 270 into the central round hole of the first-channel rotating shaft boss 409 on the chassis 400, tie two tension springs on the sleeve tension spring fixing hole 274, insert the tension springs into the sleeve clamping through holes 284 on the gear rod 280, and fix the gear rod 280 on the gear rod cover 270. Sleeve the first-channel linkage sliding cylinder 505 on the switching slider 500 onto the gear rod 280, and snap one side of the switching mechanism sliding plate 501 into the switching mechanism limiting block 411. At the same time, fixedly connect the second-channel rod body connecting cylinder 506 with the rod body part of the second power transmission channel 4000. Then connect one end of the switching mechanism tension spring 540 to the switching mechanism tension spring connection hole 508, and the other end to the through hole on the switching mechanism connection block 412. Install the friction gear 260, sleeve 240, friction wheel 230, and second special-shaped straight tooth 210 on the gear rod 280 in sequence, and fixedly install the first transmission gear 300 above the second special-shaped straight tooth 210.

[0065] Obviously, the above description is only a part of the embodiments of the present invention, not all of them. The above embodiments are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any combinations, modifications, equivalent replacements, improvements, and all other embodiments made by those of ordinary skill in the art within the spirit and principle of the present invention should be within the protection scope of the present invention.

Claims

1. A flexible switching mechanism between multiple power transmission channels, characterized in that: include: A chassis (400), wherein a power mechanism is disposed on the chassis (400), and an output shaft (110) of the power mechanism is connected to a main transmission shaft (100); A power transmission channel, the power transmission channel is connected to the main transmission shaft (100), the power transmission channel comprises a first power transmission channel (3000) and a second power transmission channel (4000), the first power transmission channel (3000) and the second power transmission channel (4000) are provided with a flexible transmission mechanism (200), and the arrangement of the second power transmission channel (4000) is opposite to that of the first power transmission channel (3000); The switching slider (500) is movably disposed between the first power transmission channel (3000) and the second power transmission channel (4000), and is used to push the first power transmission channel (3000) or the second power transmission channel (4000) to connect with the main transmission shaft (100).

2. The flexible switching mechanism between multiple power transmission channels according to claim 1, characterized in that: The output shaft (110) comprises an output shaft body (111), and a fourth spur tooth (112) is sleeved on the output shaft body (111); the main transmission shaft (100) comprises a main transmission rod (101), a first spur tooth (102) is arranged on the upper part of the main transmission rod (101), a first special-shaped spur tooth (103) is arranged below the first spur tooth (102), a second spur tooth (104) is arranged below the first special-shaped spur tooth (103), a third spur tooth (105) is arranged below the second spur tooth (104), and a third special-shaped spur tooth (106) is arranged below the third spur tooth (105), and the first spur tooth (102), the first special-shaped spur tooth (103), the second spur tooth (104) and the third spur tooth (105) are arranged at intervals and are all sleeved on the main transmission rod (101) with the main transmission rod (101) as a rotating shaft.

3. The flexible switching mechanism between multiple power transmission channels according to claim 1, characterized in that: The flexible transmission mechanism comprises a gear rod (280) arranged as a rotating shaft, a gear rod cover (270) is arranged at the bottom of the gear rod (280), a sleeve (240) is sleeved on the upper part of the gear rod (280), and a friction gear (260), a friction wheel (230) and a second special-shaped spur tooth (210) are sleeved on the gear rod (280) and the sleeve (240) in sequence.

4. The flexible switching mechanism between multiple power transmission channels according to claim 3, characterized in that: The gear rod (280) is a three-layer column structure with increasing radius from top to bottom, wherein the upper layer is the third column (283) of the gear rod, the middle layer is the second column (282) of the gear rod, and the lower layer is the first column (281) of the gear rod; friction gear clamping blocks (286) are symmetrically arranged on both sides of the third column (283) of the gear rod, and a friction wheel clamping block (285) is arranged at one end of the friction gear clamping block (286) contacting the second column (282) of the gear rod; sleeve clamping through holes (284) are symmetrically arranged on the second column (282) of the gear rod and the first column (281) of the gear rod, and the sleeve clamping through holes (284) penetrate the second column (282) of the gear rod and the first column (281) of the gear rod; and a first screw hole (287) is arranged on the bottom surface of the first column (281) of the gear rod.

5. The flexible switching mechanism between multiple power transmission channels according to claim 3, characterized in that: The gear rod cover (270) comprises a gear rod cover column (271), a gear rod cover plate (272) is arranged at the top end of the gear rod cover column (271), a sleeve tension spring fixing block (273) is symmetrically arranged on the top surface of the gear rod cover plate (272), and a sleeve tension spring fixing hole (274) is opened on the sleeve tension spring fixing block (273); and a plurality of second screw holes (275) are penetrated on the gear rod cover plate (272).

6. The flexible switching mechanism between multiple power transmission channels according to claim 3, characterized in that: The friction gear (260) is provided with friction gear spur teeth (264) in the circumferential direction, the top surface of the friction gear (260) is provided with a friction gear friction surface (261), a first through hole (263) is opened at the center of the friction gear (260), and a first groove (262) is provided around the first through hole (263).

7. The flexible switching mechanism between multiple power transmission channels according to claim 3, characterized in that: A friction wheel through hole (232) is provided at the center of the friction wheel (230), symmetrically arranged friction wheel clamping grooves (234) are provided in the friction wheel through hole (232), and a sleeve embedding groove (233) is provided around the friction wheel through hole (232); one side of the friction wheel (230) is a smooth surface, and the other side is a friction surface (231).

8. The flexible switching mechanism between multiple power transmission channels according to claim 3, characterized in that: The sleeve (240) comprises a sleeve shell (241) arranged in an annular shape, a sleeve disc (242) being arranged on the top of the sleeve shell (241), a sleeve embedding ring (243) being arranged inside the sleeve disc (242), a sleeve limiting block (244) being symmetrically arranged on the inner side of the sleeve shell (241), and a sleeve tension spring connecting hole (245) being arranged on the sleeve limiting block (244).

9. The flexible switching mechanism between multiple power transmission channels according to claim 1, characterized in that: The top of the switching slider (500) is provided with a first channel linkage ring (504) and a first channel linkage slide cylinder (505); one side of the first channel linkage slide cylinder (505) is connected to the switching mechanism sliding plate (501), and the other side of the first channel linkage slide cylinder (505) is connected to the second channel linkage cylinder connection block (502); a switching mechanism tension spring connection hole (508) is provided at the lower end of the switching mechanism sliding plate (501), and a switching mechanism limiting boss (509) is provided at the outer position of the switching mechanism sliding plate (501) adjacent to the switching mechanism tension spring connection hole (508); the second channel linkage cylinder (503) is connected to the second channel linkage cylinder connection block (502), a second channel rod body connection cylinder (506) is provided at the center of the second channel linkage cylinder (503), and a second channel rod body connection hole (507) is provided through the lower end of the second channel rod body connection cylinder (506).

10. The flexible switching mechanism between multiple power transmission channels according to any one of claims 1 to 9, characterized in that: The chassis (400) comprises a bottom shell (401), a power mechanism installation box (402) is arranged on one side of the top surface of the bottom shell (401), an engine or an electric motor is installed in the power mechanism installation box (402), and a main transmission fixed boss (403) is arranged on the top of the power mechanism installation box (402); a second channel rotating shaft first fixed boss (404) is arranged on one side of the power mechanism installation box (402), and a second channel rotating shaft second fixed boss (410) is arranged on one side of the second channel rotating shaft first fixed boss (404); a second channel second rotating shaft first fixed boss (405) is arranged adjacent to the second channel rotating shaft first fixed boss (404), and a second channel second rotating shaft second fixed boss (407) is arranged on one side of the second channel second rotating shaft first fixed boss (405); A second channel rotating shaft boss (408) is arranged between the first fixed boss (404) of the shaft and the second fixed boss (410) of the second channel rotating shaft, and a first channel rotating shaft boss (409) is arranged on one side of the second channel rotating shaft boss (408); a second channel second rotating shaft boss (406) is arranged between the first fixed boss (405) of the second channel second rotating shaft and the second fixed boss (407) of the second channel second rotating shaft; a switching mechanism limiting block (411) is arranged on one side of the second fixed boss (410) of the second channel rotating shaft, a switching mechanism tension spring connecting block (412) is arranged relative to the switching mechanism limiting block (411), a switching buckle fixing boss (413) is arranged relative to the switching mechanism tension spring connecting block (412), and a switching buckle fixing groove (414) is arranged on the top of the switching buckle fixing boss (413).

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