CN217301466U

CN217301466U - Gear transmission structure, device, equipment and bicycle

Info

Publication number: CN217301466U
Application number: CN202220229804.9U
Authority: CN
Inventors: 陈国济; 陈沛霖
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-05
Filing date: 2022-01-27
Publication date: 2022-08-26
Anticipated expiration: 2032-01-27
Also published as: CN218440448U

Abstract

The application belongs to the technical field of gear transmission, and discloses a gear transmission structure, a device, equipment and a bicycle, wherein the gear transmission structure comprises an input shaft, an output part, an input part, a fixed assembly, a planet carrier and an output transmission assembly; the input member is sleeved on the input shaft and can rotate along with the input shaft; the fixing component is sleeved on the input shaft and fixed relative to the input shaft; the planet carrier is sleeved on the input shaft; the output transmission assembly is arranged on the planet carrier and is respectively connected with the input piece, the fixing assembly and the output piece. The gear transmission structure, the gear transmission device, the gear transmission equipment and the bicycle are fixedly provided with the fixing assemblies, so that the force of the fixing assemblies is received when the output transmission assembly transmits, the force output by the output piece is improved, and larger load is driven.

Description

Gear transmission structure, device, equipment and bicycle

Technical Field

The utility model belongs to the technical field of gear drive, in particular to gear drive structure, device, equipment and bicycle.

Background

The gear transmission is a device for transmitting motion and power by a gear pair and is widely applied to various modern equipment. The existing gear transmission structure mainly realizes speed reduction through mutual meshing of a plurality of gears pairwise, but the output force is small, and large load cannot be driven.

Accordingly, the prior art is in need of improvement and development.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a gear drive structure, device, equipment and bicycle through fixed subassembly that sets up for when output gear rotates, receive fixed subassembly's power again, thereby make the power of being exported by output spare obtain improving, with the drive bigger load.

In a first aspect, the present application provides a gear transmission structure, connecting an input shaft, comprising: the output piece also comprises an input piece, a fixed component, a planet carrier and an output transmission component; the input member is sleeved on the input shaft and can rotate along with the input shaft; the fixing component is sleeved on the input shaft and fixed relative to the input shaft; the planet carrier is sleeved on the input shaft; the output transmission assembly is arranged on the planet carrier and is respectively connected with the input piece, the fixed assembly and the output piece.

The application provides a gear drive structure sets up fixed subassembly through fixed for when the input drives the output transmission subassembly transmission on the planet carrier, the output transmission subassembly receives fixed subassembly's power again, thereby makes the power of exporting by the output obtain improving, and then can drive bigger load.

Furthermore, the input member and the output member are both gear rings, the fixed assembly comprises a first fixed gear, and the output transmission assembly comprises a planetary gear and an output gear; the first fixed gear is sleeved on the input shaft and fixed relative to the input shaft, the planetary gear and the output gear are arranged on the planet carrier in a non-coaxial mode, the planetary gear is meshed with the input member and the first fixed gear respectively, and the output gear is meshed with the first fixed gear and the output member.

This application is through adopting the ring gear as the input piece for the ring gear drives the planetary gear who sets up on the planet carrier and rotates, and planetary gear drives the planet carrier and rotates, thereby drives the output gear who sets up on the planet carrier and rotates, receives the power of first fixed gear again during output gear rotates, makes the power of being exported by output obtain improving, can drive bigger load.

Further, the input member is a gear, the output member is a gear ring, the fixed assembly comprises a first fixed gear, and the output transmission assembly comprises a planetary gear and an output gear; the first fixed gear is sleeved on the input shaft and fixed relative to the input shaft, the planetary gear and the output gear are coaxially arranged on the planet carrier, the planetary gear is meshed with the first fixed gear, and the output gear is respectively meshed with the input member and the output member.

This application is through adopting the gear as the input piece for the planetary gear and the output gear rotation of coaxial setting on the gear drive planet carrier receive first fixed gear's power during planetary gear rotates, make the power by output obtain improving, can drive bigger load.

Furthermore, the input member is a gear, the output member is a gear ring, the fixed assembly comprises a first fixed gear and a second fixed gear, and the output transmission assembly comprises a planetary gear and an output gear; the first fixed gear and the second fixed gear are sleeved on the input shaft and are fixed relative to the input shaft, the planetary gear and the output gear are arranged on the planet carrier in a non-coaxial mode, the planetary gear is meshed with the input member and the first fixed gear respectively, and the output gear is meshed with the second fixed gear and the output member respectively.

This application is through adopting the gear as the input piece for the gear drives the planetary gear who sets up on the planet carrier and rotates, and planetary gear drives the planet carrier and rotates, and the planet carrier drives output gear and rotates, and planetary gear and output gear rotate the in-process and receive the power of first fixed gear and the power of second fixed gear respectively, make the power of being exported by the output piece obtain improving, can drive bigger load.

In a second aspect, the present application provides a gear assembly comprising a stationary shaft; the gear transmission structure comprises a fixed shaft, a gear transmission structure and a gear transmission structure, wherein the fixed shaft is arranged on the gear transmission structure, the gear transmission structure is arranged on the gear transmission structure, and the gear transmission structure is arranged on the gear transmission structure.

The gear transmission device provided by the application superposes a plurality of gear transmission structures according to the preface, and under the condition that the power of solitary gear transmission structure output improves, the drive ratio has been changed again for output torque improves, compares solitary gear transmission structure, can bear bigger load.

In a third aspect, the present application provides a gear transmission device, which includes a mounting shaft and a combining output element, wherein the combining output element is sleeved on the mounting shaft and can rotate relative to the mounting shaft; the gear transmission device also comprises a plurality of gear transmission devices; the plurality of gear transmission devices are divided into a first gear transmission mechanism and a second gear transmission mechanism, the first gear transmission mechanism comprises at least one gear transmission device, and the second gear transmission mechanism comprises at least two gear transmission devices; the first gear transmission mechanism is connected with the second gear transmission mechanism, and the second gear transmission mechanism is connected with the merging output piece.

The gear transmission equipment that this application provided compares gear transmission through superposing a plurality of gear transmission according to the preface for output torque improves further and improves, thereby compares gear transmission and can bear bigger load.

In a fourth aspect, the present application provides a bicycle comprising a crank and a pedal; the pedal type bicycle is characterized by further comprising the gear transmission structure, the gear transmission structure is sleeved on the input shaft, the cranks are sleeved on two ends of the input shaft, the pedals are connected with one end of each crank, and the other end of each crank is connected with the input shaft or the input piece.

The application provides a bicycle reduces speed to the power of trampling the running-board through gear drive structure, changes the drive ratio, compares and tramples the running-board through crank, chain, back sprocket direct transmission, rides more laborsavingly.

Furthermore, the fixing component is fixedly connected with a mounting fixing plate through a pipe sleeve sleeved on the input shaft.

This application is fixed the fixed subassembly on the fixed installation fixed plate that sets up through the pipe box for fixed subassembly remains the fixed state that does not rotate all the time, avoids it to rotate and appears skidding.

Furthermore, a limiting sleeve is sleeved on the input shaft.

Furthermore, the pipe sleeve is provided with a limiting groove.

Therefore, the gear transmission structure, the gear transmission device, the gear transmission equipment and the bicycle are fixedly provided with the fixing component, so that when the output transmission component is transmitted, the output transmission component is transmitted and receives the force of the fixing component, the force output by the output part is improved, and a larger load can be driven; moreover, the gear transmission structure is applied to the bicycle, so that a rider can more save labor when riding and the bicycle is favorable for long-time riding.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

Fig. 1 is a schematic structural diagram of a gear transmission structure according to an embodiment of the present application.

Fig. 2 is another schematic structural diagram of a gear transmission structure according to an embodiment of the present disclosure.

Fig. 3 is a sectional view of a gear transmission structure according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a gear transmission structure according to a second embodiment of the present application.

Fig. 5 is another schematic structural diagram of a gear transmission structure according to a second embodiment of the present application.

Fig. 6 is a sectional view of a gear transmission structure according to a second embodiment of the present application.

Fig. 7 is a schematic structural diagram of a gear transmission structure according to a third embodiment of the present application.

Fig. 8 is another schematic structural diagram of a gear transmission structure provided in the third embodiment of the present application.

Fig. 9 is a sectional view of a gear transmission structure according to a third embodiment of the present application.

Fig. 10 is a schematic structural diagram of a gear transmission device according to a fourth embodiment of the present application.

Fig. 11 is a sectional view of a gear transmission according to a fourth embodiment of the present application.

Fig. 12 is a schematic structural diagram of a gear transmission device according to a fifth embodiment of the present application.

Fig. 13 is a sectional view of a gear transmission device according to a fifth embodiment of the present application.

Fig. 14 is a schematic structural diagram of a gear transmission device according to a seventh embodiment of the present application.

Fig. 15 is a sectional view of a gear transmission device according to a seventh embodiment of the present application.

Fig. 16 is a schematic structural view of a bicycle according to an eighth embodiment of the present application.

FIG. 17 is a cross-sectional view of an eighth embodiment of the present application.

Description of reference numerals: 1. an input shaft; 2. an input member; 3. a first fixed gear; 4. a second fixed gear; 5. a planetary gear; 6. an output gear; 7. an output member; 8. a power take-off; 9. a first mounting plate; 10. a second mounting plate; 11. pipe sleeve; 12. mounting a fixed plate; 13. a bearing; 14. a limiting groove; 15. oil sealing; 16. a limiting sleeve; 17. a crank; 18. a foot pedal; 19. a fixed shaft; 20. installing a shaft; 21. a first synchronous gear set; 22. a second synchronous gear set; 23. and combining the output parts.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Example one

As shown in fig. 1-3, the utility model relates to a gear transmission structure, connect input shaft 1, include: input member 2, fixed subassembly, planet carrier, output transmission assembly and output 7. The input member 2 is sleeved on the input shaft 1 and can rotate along with the input shaft 1. The fixing component is sleeved on the input shaft 1 and fixed relative to the input shaft 1, namely the fixing component does not rotate along with the rotation of the input component 2. The planet carrier is sleeved on the input shaft 1. The output transmission component is arranged on the planet carrier and is respectively connected with the input member 2, the fixing component and the output member 7.

Specifically, the fixed component comprises a first fixed gear 3, the output transmission component comprises a planetary gear 5 and an output gear 6, the first fixed gear 3 is sleeved on the input shaft 1 and is fixed relative to the input shaft 1, namely, the first fixed gear 3 does not rotate along with the rotation of the input member 2, the planetary gear 5 and the output gear 6 are arranged on the planet carrier in a non-coaxial mode, the planetary gear 5 is meshed with the input member 2 and the first fixed gear 3, and the output gear 6 is meshed with the first fixed gear 3 and the output member 7 respectively.

In the embodiment, the input member 2 and the output member 7 are both gear rings, and when the power transmission device is applied specifically, the power transmission device is connected with the input member 2, and the input member 2 drives the planetary gear 5 to rotate by taking the first fixed gear 3 as a rotating shaft; the planet gear 5 drives the planet carrier to rotate, the planet carrier drives the output gear 6 to rotate by taking the first fixed gear 3 as a rotating shaft, and the output gear 6 drives the output member 7 to rotate, so that a load connected with the output member 7 is driven.

This technical scheme is through fixed first fixed gear 3 that sets up, and first fixed gear 3 can be fixed cover and establish on the axle that does not rotate, also can be fixed connection on other fixed spare parts that set up for when input 2 drove output gear 6 on the planet carrier and rotates, output gear 6 received first fixed gear 3's power again, thereby makes the power by output 7 output obtain improving, and then can drive bigger load.

It should be noted that the planetary gear 5 in this embodiment is a multiple gear, specifically, the planetary gear 5 is a dual gear, the dual gear includes a first layer gear and a second layer gear, the first layer gear and the second layer gear are sequentially stacked, and the radii decrease gradually from layer to layer, that is, the radius of the first layer gear is larger than the radius of the second layer gear; the first layer of gears meshes with the input member 2 and the second layer of gears meshes with the first fixed gear 3. In specific application, other multiple gears such as a triple gear, a quadruple gear and the like can be selected according to requirements, and the transmission ratio can be changed by changing the meshing of the first fixed gear 3 and different layers of gears of the multiple gears.

In this embodiment, the number of the planetary gears 5 and the number of the output gears 6 are three, the three planetary gears 5 and the three output gears 6 are uniformly distributed around the first fixed gear 3, and the three planetary gears 5 and the three output gears 6 are connected through the planet carrier. Specifically, the number of the planetary carriers is two, the two planetary carriers are respectively connected with two ends of a shaft of the planetary gear 5, and the shaft of the planetary gear 5 penetrates through the planetary gear 5. The positions of the three planet gears 5 and the three output gears 6 are limited by the planet carrier, so that the relative positions of the three planet gears 5 and the three output gears 6 are always kept unchanged when the three planet gears 5 and the three output gears 6 rotate by taking the first fixed gear 3 as a rotating shaft, and the stability of transmission is ensured. Of course, the number of the planetary gears 5 and the output gears 6 can be adaptively increased or decreased according to actual requirements, and the above is only one embodiment of the present invention, and should not be limited thereto.

Example two

As shown in fig. 4-6, the utility model relates to a gear transmission structure, connect input shaft 1, include: input member 2, fixed subassembly, planet carrier, output transmission assembly and output member 7. The input member 2 is sleeved on the input shaft 1 and can rotate along with the input shaft 1. The fixing component is sleeved on the input shaft 1 and fixed relative to the input shaft 1, namely the fixing component does not rotate along with the rotation of the input component 2. The planet carrier is sleeved on the input shaft 1. The output transmission component is arranged on the planet carrier and is respectively connected with the input member 2, the fixing component and the output member 7.

Specifically, the fixed assembly includes a first fixed gear 3 and the output drive assembly includes a planetary gear 5 and an output gear 6. The first fixed gear 3 is sleeved on the input shaft 1 and fixed relative to the input shaft 1, that is, the first fixed gear 3 does not rotate along with the rotation of the input member 2. The planet gear 5 and the output gear 6 are coaxially arranged on the planet carrier, the planet gear 5 is meshed with the first fixed gear 3, and the output gear 6 is meshed with the input member 2 and the output member 7 respectively.

In this embodiment, the input member 2 is a gear, the output member 7 is a gear ring, and when the device is applied specifically, the device is connected with the input member 2 in a power manner, the input member 2 drives the coaxially arranged planetary gear 5 and the output gear 6 to rotate by taking the first fixed gear 3 as a rotating shaft, the planetary gear 5 and the output gear 6 drive the planet carrier to rotate together, and the output gear 6 drives the output member 7 to rotate under the action of the first fixed gear 3 while taking the first fixed gear 3 as a rotating shaft to rotate, so as to drive a load connected with the output member 7.

This technical scheme is through fixed first fixed gear 3 that sets up, and first fixed gear 3 can be fixed cover and establish on the axle that does not rotate, also can be fixed connection on other fixed spare parts that set up for when input 2 drives output gear 6 on the planet carrier and rotates, receive first fixed gear 3's power again with planetary gear 5 of the coaxial setting of output gear 6, thereby make the power of being exported by output 7 obtain improving, and then can drive bigger load.

In this embodiment, the number of the planetary gears 5 and the number of the output gears 6 are three, the three planetary gears 5 are uniformly distributed around the first fixed gear 3, and the three output gears 6 and the three planetary gears 5 are respectively coaxially arranged on the planet carrier. Specifically, the number of the planetary carriers is two, the two planetary carriers are respectively connected to two ends of a shaft of the planetary gear 5, and the shaft of the planetary gear 5 penetrates through the planetary gear 5 and the output gear 6. Of course, the number of the planetary gears 5 and the output gears 6 can be adaptively increased or decreased according to actual requirements, and the above is only one embodiment of the present invention, and should not be limited thereto.

EXAMPLE III

As shown in fig. 7-9, the utility model relates to a gear transmission structure, connect input shaft 1, include: input member 2, fixed subassembly, planet carrier, output transmission assembly and output member 7. The input member 2 is sleeved on the input shaft 1 and can rotate along with the input shaft 1. The fixing component is sleeved on the input shaft 1 and fixed relative to the input shaft 1, namely the fixing component does not rotate along with the rotation of the input member 2. The planet carrier is sleeved on the input shaft 1. The output transmission component is arranged on the planet carrier and is respectively connected with the input member 2, the fixing component and the output member 7.

Specifically, the fixed assembly includes a first fixed gear 3 and a second fixed gear 4, and the output transmission assembly includes a planetary gear 5 and an output gear 6. The first fixed gear 3 and the second fixed gear 4 are both sleeved on the input shaft 1 and are both fixed relative to the input shaft 1, i.e. the first fixed gear 3 and the second fixed gear 4 do not rotate with the rotation of the input member 2. The planetary gear 5 meshes with the input member 2 and the first fixed gear 3, respectively, and the output gear 6 meshes with the second fixed gear 4 and the output member 7, respectively.

In this embodiment, input member 2 is the gear, and output member 7 is the ring gear, and during the specific application, power connection input member 2, input member 2 drive planetary gear 5 and use first fixed gear 3 as the rotation axis rotation, and planetary gear 5 drives the planet carrier rotation, and the planet carrier drives output gear 6 and uses second fixed gear 4 as the rotation axis rotation, and output gear 6 pivoted in the meantime, under the effect of second fixed gear 4, drive output member 7 and rotate to the load of drive and output member 7 being connected.

This technical scheme is through fixed first fixed gear 3 and the second fixed gear 4 that sets up, and first fixed gear 3 and second fixed gear 4 can be fixed cover and establish on the axle that does not rotate, also can be fixed connection on other fixed spare parts that set up for when input member 2 drives output transmission assembly and rotates, planetary gear 5 and output gear 6 receive first fixed gear 3 and the power of second fixed gear 4 respectively, thereby make the power by output 7 output obtain improving, and then can drive bigger load.

In this embodiment, the number of the planetary gears 5 and the number of the output gears 6 are three, the three planetary gears 5 are uniformly distributed around the first fixed gear 3, and the three output gears 6 and the three planetary gears 5 are not coaxially arranged on the planet carrier. Of course, the number of the planetary gears 5 and the output gears 6 can be adaptively increased or decreased according to actual requirements, and the above is only one embodiment of the present invention, and should not be limited thereto.

In this embodiment, the number of the planet carrier is one, and one planet carrier can be installed on a single side according to different requirements, for example, on one side of the planet gear 5 and the output gear 6, and the size of the gear transmission structure can be reduced. Of course, when the load is large, in order to ensure that sufficient power is provided, two double-sided planetary carriers may be installed, that is, the number of the planetary carriers is two, and the two planetary carriers are respectively installed on two sides of the planetary gear 5 and the output gear 6.

It should be noted that the planetary gear 5 and the output gear 6 in the present embodiment are all multiple gears, specifically, the planetary gear 5 and the output gear 6 are all dual gears, the dual gears include a first layer gear and a second layer gear, the first layer gear and the second layer gear are stacked in sequence, the first layer gear of the planetary gear 5 is meshed with the input member 2, the second layer gear of the planetary gear 5 is meshed with the first fixed gear 3, the first layer gear of the output gear 6 is meshed with the output member 7, and the second layer gear of the output gear 6 is meshed with the second fixed gear 4. In specific application, other multiple gears such as a triple gear, a quadruple gear and the like can be selected according to requirements, and the transmission ratio can be changed by changing the meshing of the first fixed gear 3 and the second fixed gear 4 with different layers of gears of the multiple gears.

Example four

As shown in fig. 10-11, the gear transmission device of the present invention includes a fixing shaft 19, and further includes at least two gear transmission structures, wherein the at least two gear transmission structures are all sleeved on the fixing shaft 19, and the at least two gear transmission structures are connected according to a sequence.

In this embodiment, at least two gear transmission structures adopt the gear transmission structure in the first embodiment, that is, each gear transmission structure includes the input member 2, the first fixed gear 3, the planet carrier, the planet gear 5, the output gear 6 and the output member 7. The input member 2 is rotatably arranged. The first fixed gear 3 is coaxial with the input member 2, and the first fixed gear 3 is fixedly disposed so as not to rotate with the rotation of the input member 2. The planet carrier and the first fixed gear 3 are arranged coaxially. The planet gear 5 and the output gear 6 are arranged on the planet carrier in a non-coaxial manner, the planet gear 5 is meshed with the input member 2 and the first fixed gear 3, and the output gear 6 is meshed with the first fixed gear 3 and the output member 7 respectively. The input member 2 and the output member 7 are both ring gears.

The above-mentioned gear transmission structure is sleeved on the fixed shaft 19, which means that the input member 2, the first fixed gear 3, the planet carrier and the output member 7 are all sleeved on the fixed shaft 19. Specifically, the input element 2 and the output element 7 are respectively rotatably sleeved on the fixed shaft 19 through a first mounting plate 9 and a second mounting plate 10; the first fixed gear 3 is fixedly sleeved on the fixed shaft 19, and the fixed shaft 19 and the first fixed gear 3 do not rotate; the planet carrier is rotatably sleeved on the fixed shaft 19.

In this embodiment, the number of the gear transmission structures is three, and for convenience of description, the three gear transmission structures are divided into a first gear transmission structure, a second gear transmission structure and a third gear transmission structure, the first gear transmission structure, the second gear transmission structure and the third gear transmission structure are sequentially connected, an output member 7 of the third gear transmission structure is connected with a power output member 8, the power output member 8 is a shaft sleeve, and the shaft sleeve is sleeved on the fixed shaft 19. Of course, the number of the gear transmission structures can be adaptively increased or decreased according to actual requirements, and the above is only an embodiment of the present invention, which should not be limited thereto.

The sequential connection means that the output members 7 of two adjacent gear transmission structures are connected with the input member 2, that is, the output member 7 of the first gear transmission structure is connected with the input member 2 of the second gear transmission structure, the input member 2 of the third gear transmission structure is connected with the output member 7 of the second gear transmission structure, and so on.

This technical scheme is through overlapping a plurality of gear drive structure, under the circumstances that the power of solitary gear drive structure output improved, has changed the drive ratio again for output torque improves, compares solitary gear drive structure, can bear bigger load.

It should be noted that the gear transmission device may be directly connected to the input power or indirectly connected to the input power. If the mode of directly connecting with the input power is adopted, the input member 2 of the first gear transmission structure is only required to be connected with the input power; if indirect connection with the input power is used, a connection structure needs to be provided between the input power and the input member 2.

In this embodiment, a connection structure is adopted to connect the input power and the gear transmission device, the connection structure includes a first synchronous gear set 21 and a second synchronous gear set 22, the first synchronous gear set 21 and the second synchronous gear set 22 both include two gears with the same specification, the two gears are coaxially arranged, one gear of the first synchronous gear set 21 is connected with the input power, the other gear of the first synchronous gear set 21 is meshed with one gear of the second synchronous gear set 22, the other gear of the second synchronous gear set 22 is connected with the input member 2 of the first gear transmission structure, in order to simplify the structure, the other gear of the second synchronous gear set 22 can be directly meshed with the planetary gear 5 of the first gear transmission structure, and thus one input member 2 is saved. Of course, the connecting structure may be other gear transmission devices, and the above description is only one embodiment of the present invention, and should not be limited thereto.

EXAMPLE five

As shown in fig. 12-13, the gear transmission device of the present invention includes a fixing shaft 19 and further includes at least two gear transmission structures, the fixing shaft 19 is sleeved with the at least two gear transmission structures, and the at least two gear transmission structures are connected according to the sequence.

In this embodiment, at least two gear transmission structures adopt the gear transmission structure of the second embodiment, that is, each gear transmission structure includes the input member 2, the first fixed gear 3, the planet carrier, the planet gear 5, the output gear 6 and the output member 7. The input member 2 is rotatably arranged. The first fixed gear 3 is coaxial with the input member 2, and the first fixed gear 3 is fixedly arranged and does not rotate along with the rotation of the input member 2. The planet carrier and the first fixed gear 3 are coaxially arranged. The planet gear 5 and the output gear 6 are coaxially arranged on the planet carrier, the planet gear 5 is meshed with the first fixed gear 3, and the output gear 6 is respectively meshed with the input member 2 and the output member 7. The input member 2 is a gear and the output member 7 is a ring gear.

It should be noted that, the above-mentioned gear transmission structure is sleeved on the fixed shaft 19, which means that the input member 2, the first fixed gear 3, the planet carrier and the output member 7 are all sleeved on the fixed shaft 19. Specifically, the input element 2 and the output element 7 are respectively rotatably sleeved on the fixed shaft 19 through a shaft sleeve and the second mounting plate 10; the first fixed gear 3 is fixedly sleeved on the fixed shaft 19, and the fixed shaft 19 and the first fixed gear 3 do not rotate; the planet carrier is rotatably sleeved on the fixed shaft 19.

In this embodiment, the number of the gear transmission structures is three, and for convenience of description, the three gear transmission structures are divided into a first gear transmission structure, a second gear transmission structure and a third gear transmission structure, the first gear transmission structure, the second gear transmission structure and the third gear transmission structure are sequentially connected, the output element 7 of the third gear transmission structure is connected with the power output element 8, the power output element 8 is a shaft sleeve, and the shaft sleeve is sleeved on the fixed shaft 19. Of course, the number of the gear transmission structures can be adaptively increased or decreased according to actual requirements, and the above is only an embodiment of the present invention, which should not be limited thereto.

In order to facilitate connection between two adjacent gear transmission structures, in this embodiment, the structures of the second gear transmission structure and the third gear transmission structure may also be the same as those of the second gear transmission structure and the third gear transmission structure in the third embodiment.

It should be noted that the manner of connecting the gear transmission device with the input power in this embodiment is the same as the manner of connecting the gear transmission device with the input power in the fourth embodiment, and the description thereof is omitted here.

EXAMPLE six

The utility model relates to a gear transmission device, including fixed axle 19, still include two at least gear drive structures, fixed axle 19 is located all to the cover of two at least gear drive structures, and two at least gear drive structures are connected according to the preface.

In this embodiment, at least two gear transmission structures adopt the gear transmission structure of the third embodiment, that is, each gear transmission structure includes the input member 2, the first fixed gear 3, the second fixed gear 4, the planet carrier, the planet gear 5, the output gear 6 and the output member 7. The input member 2 is rotatably arranged. The first fixed gear 3 and the second fixed gear 4 are coaxial with the input member 2, and the first fixed gear 3 and the second fixed gear 4 are fixedly arranged and do not rotate along with the rotation of the input member 2. The planet carrier and the first fixed gear 3 are arranged coaxially. The planet gear 5 and the output gear 6 are arranged on the planet carrier in a non-coaxial mode, the planet gear 5 is meshed with the input member 2 and the first fixed gear 3 respectively, and the output gear 6 is meshed with the second fixed gear 4 and the output member 7 respectively. The input member 2 is a gear and the output member 7 is a ring gear.

The above-mentioned gear transmission structure is sleeved on the fixed shaft 19, which means that the input member 2, the first fixed gear 3, the second fixed gear 4, the planet carrier and the output member 7 are all sleeved on the fixed shaft 19. Specifically, the input element 2 and the output element 7 are respectively rotatably sleeved on the fixed shaft 19 through a first mounting plate 9 and a second mounting plate 10; the first fixed gear 3 is fixedly sleeved on the fixed shaft 19, and the fixed shaft 19 and the first fixed gear 3 do not rotate; the planet carrier is rotatably sleeved on the fixed shaft 19.

It should be noted that the manner of connecting the gear transmission device with the input power in this embodiment is the same as the manner of connecting the gear transmission device with the input power in the fourth embodiment, and the description thereof is omitted.

EXAMPLE seven

As shown in fig. 14-15, the gear transmission device of the present invention includes a mounting shaft 20 and a combining output member 23, wherein the combining output member 23 is sleeved on the mounting shaft 20 and can rotate relative to the mounting shaft 20; the device also comprises a plurality of gear transmission devices; the plurality of gear transmission devices are divided into a first gear transmission mechanism and a second gear transmission mechanism, the first gear transmission mechanism comprises at least one gear transmission device, and the second gear transmission mechanism comprises at least two gear transmission devices; the first gear transmission mechanism is connected with the second gear transmission mechanism, and the second gear transmission mechanism is connected with the merging output piece 23.

In this embodiment, the first gear transmission mechanism includes one gear transmission device, the second gear transmission mechanism includes four gear transmission devices, and the four gear transmission devices are uniformly distributed around the installation shaft 20. Specifically, the output member 7 of the first gear transmission mechanism is connected with the four input members 2 of the four gear transmissions of the second gear transmission mechanism through connecting members, and the four output members 7 of the second gear transmission mechanism are connected with the combined output member 23 through connecting members. The connecting piece is a device for mechanical transmission of gears and the like, and the combined output piece 23 is an output shaft.

It should be noted that the plurality of gear transmission devices in the gear transmission apparatus may be all of the gear transmission devices in the fourth embodiment, all of the gear transmission devices in the fifth embodiment, all of the gear transmission devices in the sixth embodiment, or all of the gear transmission devices in the fourth embodiment, all of the gear transmission devices in the fifth embodiment, or all of the gear transmission devices in the sixth embodiment.

This technical scheme is through arranging a plurality of gear drive according to an preface stack, compares gear drive, further improves the drive ratio for output torque further improves, thereby compares gear drive and can bear bigger load.

It should be noted that, in this embodiment, the four gear transmission devices included in the second gear transmission mechanism all include four gear transmission structures, and of course, the number of the gear transmission structures included in each gear transmission device may be increased or decreased adaptively according to actual needs, and the above description is only an embodiment of the present invention, which should not be limited to this.

Example eight

As shown in fig. 16-17, the present invention relates to a bicycle, which comprises a crank 17 and a pedal 18; the planetary gear transmission mechanism further comprises an input member 2, a first fixed gear 3, a planet carrier, a planetary gear 5, an output gear 6 and an output member 7 which are of a gear transmission structure. The input member 2 is sleeved on the input shaft 1 through a first mounting disc 9; the first fixed gear 3 is sleeved on the input shaft 1 and coaxial with the input member 2, and the first fixed gear 3 is fixed relative to the input member 2, namely the first fixed gear 3 is fixedly arranged and does not rotate along with the rotation of the input member 2; the planet carrier is sleeved on the input shaft 1; the planet gear 5 is arranged on the planet carrier and is positioned between the input member 2 and the first fixed gear 3, and the planet gear 5 is meshed with the input member 2 and the first fixed gear 3 respectively; the output gear 6 is arranged on the planet carrier and is meshed with the first fixed gear 3; the output member 7 is sleeved on the input shaft 1 through a second mounting disc 10 and is meshed with the output gear 6, and a power output member 8 is connected to the output member 7 or the second mounting disc 10. The crank 17 is sleeved at two ends of the input shaft 1, and the pedal 18 is connected with one end of the crank 17. The other end of the crank 17 is connected to the input shaft 1 or the first mounting plate 9. Specifically, the input member 2 and the output member 7 are both ring gears, and the power output member 8 is a sprocket.

When the device is used specifically, the pedal plate 18 is stepped on, the pedal plate 18 drives the input shaft 1 to rotate through the crank 17, the input shaft 1 drives the first mounting disc 9 and the input part 2 to rotate, and the input part 2 drives the planetary gear 5 to rotate by taking the first fixed gear 3 as a rotating shaft; planetary gear 5 drives the planet carrier and uses input shaft 1 to rotate as the pivot, the planet carrier drives output gear 6 and uses first fixed gear 3 to rotate as the rotation axis, output gear 6 drives second mounting disc 10 and output 7 and rotates, output 7 drives power take-off 8 and rotates, through fixed first fixed gear 3 that sets up, when making input 2 drive output gear 6 on the planet carrier and rotate, output gear 6 receives the power of first fixed gear 3 again, thereby make the power of being exported by output 7 obtain improving, make and ride more laborsavingly.

In some preferred embodiments, one end of the first fixed gear 3 is connected to a mounting fixing plate 12 through a sleeve 11 sleeved on the input shaft 1, the mounting fixing plate 12 is fixed at a predetermined position by a bolt, and the second mounting plate 10 is sleeved on the sleeve 11. The first fixed gear 3 is fixed on a fixedly arranged mounting fixing plate 12 through a pipe sleeve 11, so that the first fixed gear 3 and the input member 2 are always kept in a relatively fixed state, and the rotation of the first fixed gear 3 is prevented from slipping. It should be noted that the sleeve 11, the first fixed gear 3 and the mounting and fixing plate 12 may be connected by a movable connection manner, such as a bolt connection manner, or may be connected by a fixed connection manner, such as a screw welding manner, or may be integrally formed, and in any manner, the main purpose of the method is to fix the first fixed gear 3, that is, the first fixed gear 3 is always fixed when the input member 2 and the planetary gear 5 rotate.

In some preferred embodiments, the number of the planetary gears 5 and the output gears 6 is three, three planetary gears 5 and three output gears 6 are uniformly distributed around the first fixed gear 3, and the three planetary gears 5 and three output gears 6 are connected through a planet carrier. Specifically, the quantity of planet carrier is two, and two planet carriers are connected with the both ends of planetary gear 5's axle respectively, and planetary gear 5's axle runs through planetary gear 5, and input shaft 1 is located to one planet carrier cover in two planet carriers, and pipe box 11 is located to another planet carrier cover in two planet carriers. The positions of the three planet gears 5 and the three output gears 6 are limited by the planet carrier, so that the relative positions of the three planet gears 5 and the three output gears 6 are always kept unchanged when the three planet gears 5 and the three output gears 6 rotate by taking the first fixed gear 3 as a rotating shaft, and the stability of transmission is ensured. Of course, the number of the planetary gears 5 and the output gears 6 can be adaptively increased or decreased according to actual requirements, and the above is only one embodiment of the present invention, and should not be limited thereto.

In some preferred embodiments, bearings 13 are provided between the first fixed gear 3 and the input shaft 1, between the sleeve 11 and the input shaft 1, between the second mounting plate 10 and the sleeve 11, between the planet carrier and the input shaft 1, between the planet carrier and the shafts of the planet gears 5, between the planet carrier and the sleeve 11, and between the planet carrier and the shafts of the output gear 6. The first fixed gear 3, the pipe sleeve 11, the second mounting plate 10 and the planet carrier are supported by the bearing 13, so that the friction coefficient in the movement process is reduced, and the rotation precision is ensured.

In some preferred embodiments, the sleeve 11 and the second mounting plate 10 each have a limiting groove 14. The limiting groove 14 is used for limiting the bearing 13, and the bearing is prevented from moving in the axial direction to influence transmission.

In some preferred embodiments, the input shaft 1 is sleeved with an oil seal 15, and the outer surface of the oil seal 15 abuts against the inner side wall of the pipe sleeve 11. The sealing between the input shaft 1 and the socket 11 is achieved by the oil seal 15, avoiding leakage of lubricating oil therefrom.

In some preferred embodiments, the planetary gear 5 is a multiple gear, in this embodiment, the planetary gear 5 is a dual gear, the dual gear includes a first layer gear and a second layer gear, the first layer gear and the second layer gear are sequentially stacked, and the radius decreases from layer to layer, that is, the radius of the first layer gear is larger than the radius of the second layer gear; the first layer of gears meshes with the input member 2 and the second layer of gears meshes with the first fixed gear 3. In specific application, other multiple gears such as a triple gear, a quadruple gear and the like can be selected according to requirements, and the transmission ratio can be changed by changing the meshing of the first fixed gear 3 and different layers of gears of the multiple gears.

In some preferred embodiments, the input shaft 1 is sleeved with a limiting sleeve 16, the limiting sleeve 16 is located between two adjacent bearings 13, and the limiting sleeve 16 cooperates with the limiting groove 14 to axially limit the two adjacent bearings 13, so as to prevent the bearings 13 from moving axially.

Example nine

The present embodiment differs from the eighth embodiment in that: in this embodiment, the gear transmission structure in the second embodiment is adopted, that is, the gear transmission structure includes the input member 2, the first fixed gear 3, the planet carrier, the planet gear 5, the output gear 6 and the output member 7. The input member 2 is sleeved on the input shaft 1. The first fixed gear 3 is coaxial with the input member 2, and the first fixed gear 3 is fixedly arranged and does not rotate along with the rotation of the input member 2. The planet carrier and the first fixed gear 3 are arranged coaxially. The output transmission component is arranged on the planet carrier and is meshed with the input member 2, the first fixed gear 3 and the output member 7 respectively. A planetary gear 5 and an output gear 6. The planet gear 5 and the output gear 6 are coaxially arranged on the planet carrier, the planet gear 5 is meshed with the first fixed gear 3, and the output gear 6 is respectively meshed with the input member 2 and the output member 7. Specifically, the input member 2 is a gear, the output member 7 is a ring gear, and the power output member 8 is a sprocket.

When the device is used specifically, the pedal plate 18 is stepped on, the pedal plate 18 drives the input shaft 1 to rotate through the crank 17, the input shaft 1 drives the input member 2 connected with the input shaft to rotate, and the input member 2 drives the output gear 6 to rotate by taking the first fixed gear 3 as a rotating shaft; output gear 6 pivoted in, drives the synchronous rotation of planetary gear 5 of coaxial setting, still drives the planet carrier and uses input shaft 1 to rotate as the pivot, and planetary gear 5 rotates the power that the in-process received the fixed first fixed gear 3 that sets up for the power by output 7 output obtains improving, makes to ride more laborsavingly.

Example ten

The present embodiment differs from embodiment eight in that: in this embodiment, the gear transmission structure is the gear transmission structure in the third embodiment, that is, the gear transmission structure includes the input member 2, the first fixed gear 3, the second fixed gear 4, the planet carrier, the planet gear 5, the output gear 6 and the output member 7. The input member 2 is rotatably arranged. The first fixed gear 3 and the second fixed gear 4 are coaxial with the input member 2, and the first fixed gear 3 and the second fixed gear 4 are fixedly arranged and do not rotate along with the rotation of the input member 2. The planet carrier and the first fixed gear 3 are arranged coaxially. The planet gear 5 and the output gear 6 are arranged on the planet carrier in a non-coaxial mode, the planet gear 5 is meshed with the input member 2 and the first fixed gear 3 respectively, and the output gear 6 is meshed with the second fixed gear 4 and the output member 7 respectively. Specifically, the input member 2 is a gear, the output member 7 is a ring gear, and the power output member 8 is a sprocket.

When the bicycle is used specifically, the pedal plate 18 is stepped on, the pedal plate 18 drives the input shaft 1 to rotate through the crank 17, the input shaft 1 drives the input member 2 connected with the input shaft to rotate, the input member 2 drives the planetary gear 5 to rotate, the planetary gear 5 drives the planet carrier to rotate by taking the input shaft 1 as a rotating shaft, the planet carrier drives the output gear 6 to rotate, and the planetary gear 5 and the output gear 6 are subjected to the force of the first fixed gear 3 and the second fixed gear 4 which are fixedly arranged in the rotating process, so that the force output by the output member 7 is improved, and the bicycle is more labor-saving to ride.

To sum up, the utility model discloses a gear drive structure, device, equipment and bicycle drives output drive assembly through input 2 and uses the fixed subassembly of fixed setting to rotate as the rotation axis for receive fixed subassembly's power during output drive assembly transmission, thereby make the power by output 7 output obtain improving, and then can drive bigger load, can be applied to on the bicycle, also can be applied to other mechanical devices that need big moment of torsion, like the reduction gear etc..

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. A gear transmission structure connecting an input shaft, comprising: the output piece is characterized by also comprising an input piece, a fixed component, a planet carrier and an output transmission component; the input member is sleeved on the input shaft and can rotate along with the input shaft; the fixing component is sleeved on the input shaft and fixed relative to the input shaft; the planet carrier is sleeved on the input shaft; the output transmission assembly is arranged on the planet carrier and is respectively connected with the input piece, the fixing assembly and the output piece.

2. The gear transmission arrangement of claim 1, wherein said input member and said output member are both ring gears, said stationary assembly comprises a first stationary gear, and said output transmission assembly comprises a planetary gear and an output gear; the first fixed gear is sleeved on the input shaft and fixed relative to the input shaft, the planetary gear and the output gear are arranged on the planet carrier in a non-coaxial mode, the planetary gear is meshed with the input member and the first fixed gear respectively, and the output gear is meshed with the first fixed gear and the output member.

3. The gear transmission arrangement of claim 1, wherein said input member is a gear, said output member is a ring gear, said stationary assembly comprises a first stationary gear, and said output transmission assembly comprises a planetary gear and an output gear; the first fixed gear is sleeved on the input shaft and fixed relative to the input shaft, the planetary gear and the output gear are coaxially arranged on the planet carrier, the planetary gear is meshed with the first fixed gear, and the output gear is meshed with the input member and the output member respectively.

4. The gear transmission arrangement of claim 1, wherein said input member is a gear, said output member is a ring gear, said fixed assembly includes a first fixed gear and a second fixed gear, said output transmission assembly includes a planetary gear and an output gear; the first fixed gear and the second fixed gear are sleeved on the input shaft and are fixed relative to the input shaft, the planetary gear and the output gear are arranged on the planet carrier in a non-coaxial mode, the planetary gear is meshed with the input member and the first fixed gear respectively, and the output gear is meshed with the second fixed gear and the output member respectively.

5. A gear transmission device comprises a fixed shaft and is characterized by further comprising at least two gear transmission structures according to any one of claims 1 to 4, wherein the at least two gear transmission structures are sleeved on the fixed shaft and are sequentially connected.

6. A gear transmission device comprises a mounting shaft and a combined output piece, wherein the combined output piece is sleeved on the mounting shaft and can rotate relative to the mounting shaft; characterized by further comprising a plurality of gear assemblies according to claim 5; the plurality of gear transmission devices are divided into a first gear transmission mechanism and a second gear transmission mechanism, the first gear transmission mechanism comprises at least one gear transmission device, and the second gear transmission mechanism comprises at least two gear transmission devices; the first gear transmission mechanism is connected with the second gear transmission mechanism, and the second gear transmission mechanism is connected with the merging output piece.

7. A bicycle comprises a crank and a pedal; the gear transmission structure is characterized by further comprising the gear transmission structure as claimed in any one of claims 1 to 4, wherein the gear transmission structure is sleeved on the input shaft, the cranks are sleeved on two ends of the input shaft, the pedals are connected with one ends of the cranks, and the other ends of the cranks are connected with the input shaft or the input member.

8. The bicycle of claim 7, wherein the fixing member is fixedly connected to the fixing plate by a tube sleeve sleeved on the input shaft.

9. The bicycle of claim 7, wherein the input shaft is sleeved with a stop collar.

10. The bicycle of claim 8, wherein the socket has a retaining groove.