CN216618503U

CN216618503U - Driving device

Info

Publication number: CN216618503U
Application number: CN202220169424.0U
Authority: CN
Inventors: 朱红梅; 刘鸿图
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-05-27
Anticipated expiration: 2032-01-21

Abstract

The utility model belongs to the technical field of machinery, and discloses a driving device which comprises an external shell, a driving disk, a planetary assembly meshed with the driving disk, and a pull wire, wherein one end of the pull wire is fixedly connected with an adjusting and driving disk, and the other end of the pull wire is connected to an external control part; the driving disc is fixedly connected with the outer shell, and one end of the driving disc is fixedly connected with the outer shell. The driving device is used for gear shifting driving of the variable speed bicycle, gear shifting can be easily realized when external manual wire pulling gear shifting is carried out by adopting the combination of the wire pulling, the fluted disc and the coil spring, and the coil spring can reset the driving disc after gear shifting. In addition, the utility model has simple structure, easy operation, flexible gear shifting and strong practicability.

Description

Driving device

Technical Field

The utility model belongs to the technical field of machinery, and particularly relates to a driving device.

Background

Conventional vehicle transmissions typically employ a mid-shaft transmission configuration that can be shifted by changing gear ratios by moving a drive chain from one gear of a chain wheel or flywheel to another gear of a different diameter. In the structure of the bottom bracket axle type speed changer, the intermittent distance required by gear shifting must exist between the gears on each axle to realize the effect of gear shifting and speed changing, therefore, the speed changer has the phenomenon of neutral idle running and the number of gears is limited by the axle length of the middle axle, the number of gears is less, and the larger the number of gears is, the longer the axle length of the middle axle is, which affects the riding comfort of the bicycle.

In order to overcome the defect of traditional well shaft type derailleur, a great deal of improvement has been carried out to variable speed bicycle in this field, disclose a biax tertiary from driving wheel gearbox device as patent publication No. CN204533457U, the casing be equipped with a driving shaft and driven shaft in the casing, the interlude of driving shaft is connected with initiative wheelset and tertiary driven wheelset respectively the driven shaft both ends are the bearing installation position, the one end of driven shaft is connected with the planet subassembly of shifting, the other end of driven shaft is equipped with one-level driven wheelset and second grade driven wheelset, there are multiunit pawl finger piece mounting groove on the driven shaft, all are equipped with the pawl finger piece on every pawl finger piece mounting groove, the pawl finger piece is connected with one-level driven wheelset and second grade driven wheelset. The patent can normally shift gears under the condition of no input rotating speed, and in the patent, the gear shifting driving device connected with the gear shifting planetary assembly is not described excessively, and the gear shifting driving device is a circular gear as seen in the drawing, but the resetting mode is not described excessively.

Accordingly, there is a need in the art for improved shifting drives associated with shifting planetary assemblies that further improve the operating efficiency and utility of the transmission.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a driving device which is simple in structure, easy to operate, capable of achieving flexible gear shifting and high in practicability.

The technical scheme for realizing the purpose of the utility model is as follows:

a kind of actuating device, including the outside body, driving disc and planetary assembly that the driving disc engages, also include the guy wire, one end of the guy wire is fixedly connected with driving disc of the regulation, another end is connected to the external control part; the driving disc is fixedly connected with the outer shell, and one end of the driving disc is fixedly connected with the outer shell. The outer casing is a casing that covers the inner transmission, and its main purpose is to protect the internal parts to a certain extent, and it is a casing in the prior art, such as the casing disclosed in CN 204533457U.

Further, the driving disk is a fan-shaped fluted disk.

Further, the driving disk is a circular fluted disk.

Further, the device also comprises a fixed pulley fixedly connected on the outer shell; the stay wire is wound around the sliding groove of the fixed pulley.

Furthermore, the planet assembly consists of an inner ring gear, an outer ring gear, an inner sun gear, an outer sun gear, an inner planet gear, an outer planet gear and a planet carrier; the inner planet wheel set and the outer planet wheel set are arranged on the same planet carrier; the peripheral gear of the external inner gear ring is in meshed connection with the driving disc, and the peripheral gear of the external inner gear ring is in meshed connection with the external planet wheel.

The gear shifting control component controls the external inner gear ring in the planetary component to rotate, the internal outer gear ring transmits kinetic energy to the external sun gear through the planet gear, and the gear shifting mandrel fixedly connected with the external sun gear is further driven to rotate, so that the gear shifting mandrel and the driven shaft rotate relatively, and finally gear shifting is realized. The gear shifting disk rotates a fixed angle for shifting one gear each time, and the specific rotating angle is determined according to the relationship between the gear shifting mandrel and the clamping groove in the driven shaft and the cam on the gear shifting mandrel. In the above process, the shift core shaft, the driven shaft, the slot and the cam are parts and connection modes in the prior art, such as parts in the patent with the publication number of CN 204533457U.

The utility model has the beneficial effects that:

1. the driving device is used for gear shifting driving of a speed-changing bicycle, gear shifting can be easily realized when external manual wire pulling gear shifting is carried out by adopting the combination of the pull wire, the fluted disc and the coil spring, and the coil spring can reset the driving disc after gear shifting.

2. The utility model has simple structure, easy operation, flexible gear shifting and strong practicability, and can be suitable for vehicles such as automatic vehicles, electric vehicles, motorcycles, tricycles, automobiles and the like, thereby having wide applicability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

Fig. 1 is a schematic front view of the driving device of the present invention.

Fig. 2 is a rear view of the driving device of the present invention.

FIG. 3 is a schematic view of the planetary assembly with the annulus gear removed.

901. A shift dial; 902. a pull wire; 903. a coil spring; 1001. an inner gear ring; 1002. a sun gear; 1003. a planet wheel; 1004. a planet carrier; 20. and a fixed pulley.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-3, a driving device comprises an external casing, a driving disk 901, a planetary assembly engaged with the driving disk 901, and a pulling wire 902, wherein one end of the pulling wire 902 is fixedly connected with the driving disk 901, and the other end is connected to an external control component for manual gear shifting. The pull wire 902 can be a flexible wire or a metal wire made of rubber materials and the like, and can be pulled from the outside during gear shifting, so that the driving disc 901 is driven to rotate, and the planetary assembly is further driven to operate; then the sun gear 1002 in the planetary assembly drives the gear shifting mandrel fixedly connected with the sun gear to rotate, so that gear shifting is realized.

The external control is primarily a device for moving the pull-cord 902, and may be pulled directly by hand, or may be coupled to other actuation devices.

And the device also comprises a coil spring 903, wherein one end of the coil spring 903 is fixedly connected with the driving disc 901, and the other end of the coil spring 903 is fixedly connected with the outer shell. By combining the pull wire 902, the driving disk 901 and the coil spring 903, the gear shifting can be easily realized when the external manual pull wire 902 shifts gears, and the coil spring 903 can reset the driving disk 901 after the gear shifting.

In one embodiment of the present invention, the driving disk 901 is a sector-shaped toothed disk; in another embodiment of the present invention, the driving disk 901 is a circular toothed disk. The fan-shaped fluted disc is preferably selected by the utility model, and the gear ring of the fluted disc rotating fan-shaped planetary assembly can rotate 360 degrees, and particularly, the fan-shaped fluted disc can ensure that the gear can be meshed with the external inner gear ring 1001 of the planetary assembly in the angle range of gear rotation during gear shifting, so that the planetary assembly can be driven, and meanwhile, the material can be further saved and the weight of the device can be reduced.

Further, as shown in fig. 1-2, a fixed pulley 20 fixedly connected to the outer housing is further included; the pull wire 902 passes around the slide groove of the fixed pulley 20. The sliding groove of the fixed pulley 20 is used for placing the pull wire 902, the fixed pulley 20 can achieve the effect of saving labor, and the fixed pulley 20 can be used as a supporting point of the pull wire 902, so that the pull wire 902 is prevented from contacting other parts, and damage is avoided.

Further, as shown in fig. 1-3, the planetary assembly is composed of an inner ring gear 1001, an outer ring gear 1001, an inner sun gear 1002, an outer sun gear 1003, an inner planet gear 1003, an outer planet gear 1003 and a planet carrier 1004; the inner and outer planetary gears 1003 are arranged on the same planetary carrier 1004; the peripheral gear of the external inner gear ring 1001 is in meshing connection with the driving disc 901, and the peripheral gear of the external inner gear ring 1001 is in meshing connection with the external planet wheel 1003.

In one embodiment of the present invention, the planetary assembly is a prior art planetary assembly, and the connection manner of the planetary assembly with the shift mandrel and the driven shaft is similar to that of the prior art, such as the planetary assembly disclosed in the patent with the publication number CN 204533457U. The specific setting mode of the planet assembly is as follows: the planet assembly consists of an inner ring gear 1001, an outer ring gear 1001, an inner sun gear 1002, an outer sun gear 1002, an inner planet gear 1003, an outer planet gear 1003 and a planet carrier 1004; the inner and outer sets of planet gears 1003 are mounted on the same planet carrier 1004. The peripheral gear of the external inner gear ring 1001 is meshed with a gear shifting disc 901 in the gear shifting control assembly, and the peripheral gear of the external inner gear ring 1001 is meshed with the external planet gear 1003; the external sun gear 1002 is fixedly connected to the gear shifting mandrel; under the action of a driving disc 901, an external inner gear ring 1001 drives an external sun gear 1002 to rotate, so that a gear shifting mandrel is driven to rotate, and gear shifting is realized. And the inner ring gear 1001 is smooth and gearless; the inner sun gear 1002 is fixedly coupled to the driven shaft for dissipating excess kinetic energy as the driven shaft rotates.

The above-mentioned embodiments are further described in detail for the purpose of illustrating the utility model, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the utility model and are not intended to limit the utility model, and any modifications, equivalent substitutions, improvements and the like made within the spirit of the utility model should be included in the scope of the utility model.

Claims

1. A driving device comprises an external shell, a driving disk (901) and a planet component meshed with the driving disk (901), and is characterized by further comprising a pull wire (902), wherein one end of the pull wire (902) is fixedly connected with an adjusting driving disk (901), and the other end of the pull wire is connected to an external control piece; one end of the coil spring (903) is fixedly connected with the driving disc (901), and the other end of the coil spring is fixedly connected with the outer shell.

2. The drive device according to claim 1, characterized in that the drive plate (901) is a sector toothed plate.

3. The drive device according to claim 1, characterized in that the drive plate (901) is a circular toothed plate.

4. The drive of claim 1, 2 or 3, further comprising a fixed pulley (20) fixedly connected to the outer housing; the pull wire (902) passes through the sliding groove of the fixed pulley (20).

5. A drive arrangement according to claim 1, 2 or 3, characterised in that the planetary assembly consists of two inner and outer ring gears (1001), two inner and outer sun gears (1002), two sets of inner and outer planet gears (1003) and one planet carrier (1004); the inner planet wheel set (1003) and the outer planet wheel set (1003) are arranged on the same planet carrier (1004); the peripheral gear of the external inner gear ring (1001) is in meshed connection with the driving disc (901), and the peripheral gear of the external inner gear ring (1001) is in meshed connection with the external planet wheel (1003).

6. The drive arrangement according to claim 4, characterized in that the planetary assembly consists of two inner and outer ring gears (1001), two inner and outer sun gears (1002), two sets of inner and outer planet gears (1003) and one planet carrier (1004); the inner planet wheel set (1003) and the outer planet wheel set (1003) are arranged on the same planet carrier (1004); the peripheral gear of the external inner gear ring (1001) is in meshed connection with the driving disc (901), and the peripheral gear of the external inner gear ring (1001) is in meshed connection with the external planet wheel (1003).