CN216216349U

CN216216349U - Gap-adjustable commutator

Info

Publication number: CN216216349U
Application number: CN202122727959.3U
Authority: CN
Inventors: 李卓林
Original assignee: Shanghai Zhuoshen Precision Motor Co ltd
Current assignee: Shanghai Zhuoshen Precision Motor Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-04-05
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses a gap-adjustable commutator which comprises an installation shell, wherein a driving shaft extending into the installation shell is arranged at the top of the installation shell, a driving bevel gear is arranged at one end of the driving shaft, which is positioned in the installation shell, and a driven shaft penetrating through the installation shell is arranged at one side of the installation shell; according to the utility model, through the mutual matching of the connecting rod, the driven shaft, the driving bevel gear, the driven bevel gear, the annular displacement groove, the baffle plate, the spring, the circular slider, the limiting tooth groove and the limiting teeth, when the speed is reduced, the connecting rod is pulled by external pulling force to displace, so that the driven bevel gear and the driving bevel gear are driven to be separated from each other, and when the speed is reduced and the brake is carried out, the driving force of the motor on the driven shaft is released, so that the phenomenon that the teeth are damaged between the driving bevel gear and the driven bevel gear due to the reverse acting force during the braking and speed reduction is avoided, and the service life of the device is prolonged.

Description

Gap-adjustable commutator

Technical Field

The utility model relates to the technical field of commutators of electric bicycle speed reducers, in particular to a gap-adjustable commutator.

Background

The electric bicycle is a mechatronic personal transportation tool which uses a storage battery as an auxiliary energy source and is provided with an electric motor, a controller, the storage battery, a rotating handle brake handle and other operation components and a display instrument system.

The inside cooperation commutator that has brush gear speed reduction motor at present usually assists the use to be used for changing the transmission direction of driving shaft, but current commutator structure only is used as in the change of transmission direction, when the motor slows down, receives under the effect of motor inertia, can't play the driven deceleration action to the electric motor car, and when utilizing the brake to slow down the transmission shaft, make two sets of drive gear reaction force appear easily, thereby lead to the phenomenon of gear damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a gap-adjustable commutator, which solves the problem that the existing commutator of a speed-reducing motor cannot overcome the inertia transmission problem when the driving motor is used for reducing speed in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a gap-adjustable commutator comprises an installation shell, wherein a driving shaft extending into the installation shell is arranged at the top of the installation shell, a driving bevel gear is arranged at one end of the driving shaft, which is positioned in the installation shell, a driven shaft penetrating through the installation shell is arranged at one side of the installation shell, driven bevel gears meshed with the driving bevel gears are arranged at the outer sides of the driven shafts, limit tooth grooves are uniformly arranged at the inner sides of the driven bevel gears, limit teeth meshed with the limit tooth grooves are uniformly arranged at the outer sides of the driven shafts, an annular displacement groove is arranged at a position close to the center at one side of the driven bevel gears, circular sliding blocks are symmetrically arranged in the annular displacement groove, connecting rods are arranged at two ends of one side of the installation shell, one ends of the connecting rods extend into the installation shell and are connected with the circular sliding blocks, the outside of connecting rod is provided with the baffle, the border position department of baffle one side is provided with the spring of cover locating the connecting rod outside, the opposite side of spring is laminated mutually with the inner wall of installation casing.

Preferably, both ends of the installation shell are provided with installation sealing blocks, and the edge positions of the installation sealing blocks close to one side of the installation shell are provided with sealing rings.

Preferably, a pull ring is arranged on one side of the connecting rod, which is positioned outside the mounting shell.

Preferably, bearing seats are arranged between the outer sides of the driven shaft and the driving shaft and the inner wall of the mounting shell, and the bearing seats are embedded into the mounting shell.

Preferably, the outer ends of the driven shaft and the driving shaft are provided with key grooves.

Preferably, the outer sides of the driving bevel gear, the driven bevel gear, the limit tooth grooves and the limit teeth are uniformly coated with lubricating oil.

Compared with the prior art, the utility model has the beneficial effects that: the gap-adjustable commutator;

through the connecting rod, the driven shaft, the driving shaft, initiative bevel gear, driven bevel gear, annular displacement groove, the baffle, a spring, circular slider, mutually support between spacing tooth's socket and the spacing tooth, when slowing down, carry out the displacement through external pulling force pulling connecting rod, thereby drive driven bevel gear and initiative bevel gear and break away from mutually, make when slowing down the brake, remove the drive of motor's drive power to the driven shaft, thereby reverse acting force makes the phenomenon that tooth damage appears between initiative bevel gear and the driven bevel gear when having avoided the brake to slow down, and then the life of device has been prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A of FIG. 2 according to the present invention;

fig. 4 is a side cross-sectional view of the driven bevel gear of fig. 1 according to the present invention.

In the figure: 1. installing a shell; 2. a connecting rod; 3. a driven shaft; 4. installing a sealing block; 5. a drive shaft; 6. a drive bevel gear; 7. a driven bevel gear; 8. an annular displacement groove; 9. a baffle plate; 10. a spring; 11. a circular slider; 12. a limiting tooth socket; 13. and a limiting tooth.

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.

Referring to fig. 1-4, the present invention provides an embodiment: a gap-adjustable commutator comprises an installation shell 1, wherein installation sealing blocks 4 are arranged at two ends of the installation shell 1, sealing rings are arranged at the edge positions of the installation sealing blocks 4 close to one side of the installation shell 1, each part is conveniently installed through the installation sealing blocks 4, the sealing property inside the device is ensured through the arrangement of the sealing rings, a driving shaft 5 extending into the installation shell 1 is arranged at the top of the installation shell 1, a driving bevel gear 6 is arranged at one end of the driving shaft 5 positioned inside the installation shell 1, a driven shaft 3 penetrating through the installation shell 1 is arranged at one side of the installation shell 1, bearing seats are arranged between the outer sides of the driven shaft 3 and the driving shaft 5 and the inner wall of the installation shell 1 and are embedded into the installation shell 1, the normal transmission of the driven shaft 3 and the driving shaft 5 is ensured through the bearing seats, key grooves are arranged at the outer ends of the driven shaft 3 and the driving shaft 5, the phenomenon of preventing transmission from slipping is prevented through a key groove, a driven bevel gear 7 meshed with a driving bevel gear 6 is arranged on the outer side of a driven shaft 3, limiting tooth grooves 12 are uniformly formed in the inner side of the driven bevel gear 7, limiting teeth 13 meshed with the limiting tooth grooves 12 are uniformly formed in the outer side of the driven shaft 3, an annular displacement groove 8 is formed in one side of the driven bevel gear 7 close to the center, circular sliding blocks 11 are symmetrically arranged in the annular displacement groove 8, connecting rods 2 are arranged at two ends of one side of an installation shell 1, one end of each connecting rod 2 extends into the installation shell 1 and is connected with the corresponding circular sliding block 11, a baffle 9 is arranged on the outer side of each connecting rod 2, a spring 10 sleeved on the outer side of each connecting rod 2 is arranged at the edge position of one side of the baffle 9, the other side of the spring 10 is attached to the inner wall of the installation shell 1, and a pull ring is arranged on one side of the connecting rod 2, which is positioned outside the installation shell 1, make things convenient for connecting rod 2 and external brake line interconnect through the pull ring, the outside of drive bevel gear 6 and driven bevel gear 7 and spacing tooth's socket 12 and spacing tooth 13 all evenly scribbles lubricating oil, through scribbling lubricating oil, improves transmission efficiency.

The working principle is as follows: the device provides power for the device by the interconnection of an external driving motor and a driving shaft 5, when the device is used, the driving shaft 5 is driven to run by the external driving motor, so that an electric driving bevel gear 6 rotates through the driving shaft 5, a driven bevel gear 7 meshed with the driving bevel gear 6 is driven to rotate by the driving bevel gear 6, a limiting tooth socket 12 and a limiting tooth 13 are arranged on the inner side of the driven bevel gear 7 to be meshed with each other, so that a driven shaft 3 is driven to rotate, the steering of kinetic energy is further realized, the reversing function is realized, a circular sliding block 11 connected with a connecting rod 2 slides in an annular displacement groove 8 along with the rotation of the driven bevel gear 7, further when braking and speed reduction are needed, the external braking wire is connected with the connecting rod 2, the connecting rod 2 is pulled to displace by the braking wire, the circular sliding block 11 is driven to displace by the displacement of the connecting rod 2, at this moment, the limiting tooth grooves 12 slide outside the limiting teeth 13, meanwhile, the connecting rod 2 drives the baffle 9 to compress the spring 10, so that the meshing state between the driven bevel gear 7 and the driving bevel gear 6 is relieved, and further, through the adjustment of the gap between the driven bevel gear 7 and the driving bevel gear 6, the reaction force generated when braking cannot generate the offset with the driving force of the driving motor, so that the tooth damage of the driving bevel gear 6 and the driven bevel gear 7 is avoided, and the service life of the device is prolonged.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, e.g., as either a fixed connection or a removable connection, unless expressly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. A gap-adjustable commutator comprising a mounting case (1), characterized in that: the top of the mounting shell (1) is provided with a driving shaft (5) extending into the mounting shell (1), one end of the driving shaft (5) positioned in the mounting shell (1) is provided with a driving bevel gear (6), one side of the mounting shell (1) is provided with a driven shaft (3) penetrating through the mounting shell (1), the outer side of the driven shaft (3) is provided with a driven bevel gear (7) with the driving bevel gear (6) meshed with each other, the inner side of the driven bevel gear (7) is uniformly provided with a limiting tooth socket (12), the outer side of the driven shaft (3) is uniformly provided with a limiting tooth (13) meshed with the limiting tooth socket (12), one side of the driven bevel gear (7) is provided with an annular displacement groove (8) close to the central position, and the inner part of the annular displacement groove (8) is symmetrically provided with a circular sliding block (11), the utility model discloses a mounting structure, including installation casing (1), connecting rod (2), baffle (9), spring (10) outside connecting rod (2) are located to the border position department of baffle (9) one side, the opposite side of spring (10) and the inner wall of installation casing (1) are laminated mutually, the one end of connecting rod (2) extend to the inside of installation casing (1) and interconnect with circular slider (11), the outside of connecting rod (2) is provided with baffle (9), the border position department of baffle (9) one side is provided with the cover.

2. A gap adjustable commutator as claimed in claim 1, wherein: the mounting device is characterized in that mounting sealing blocks (4) are arranged at two ends of the mounting shell (1), and sealing rings are arranged at the edge positions, close to one side of the mounting shell (1), of the mounting sealing blocks (4).

3. A gap adjustable commutator as claimed in claim 1, wherein: and a pull ring is arranged on one side of the connecting rod (2) positioned outside the mounting shell (1).

4. A gap adjustable commutator as claimed in claim 1, wherein: bearing seats are arranged between the outer sides of the driven shaft (3) and the driving shaft (5) and the inner wall of the mounting shell (1), and the bearing seats are embedded into the mounting shell (1).

5. A gap adjustable commutator as claimed in claim 1, wherein: the outer ends of the driven shaft (3) and the driving shaft (5) are provided with key grooves.

6. A gap adjustable commutator as claimed in claim 1, wherein: and lubricating oil is uniformly coated on the outer sides of the driving bevel gear (6), the driven bevel gear (7), the limiting tooth grooves (12) and the limiting teeth (13).