CN215908348U

CN215908348U - Combined driving gear

Info

Publication number: CN215908348U
Application number: CN202122646180.9U
Authority: CN
Inventors: 邱再熊; 梁优妃; 宋玉玺
Original assignee: Xinchang Yuli Casting Co ltd
Current assignee: Xinchang Yuli Casting Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-02-25
Anticipated expiration: 2031-11-01

Abstract

The invention provides a combined driving gear, which comprises a main gear and a driving cylinder arranged on the main gear, wherein the tail end of the driving cylinder is provided with a small driving wheel, and an auxiliary gear is detachably arranged on the driving cylinder; the inner wall of the driving barrel facing one end of the main gear is provided with a driving barrel key groove, and the key groove is provided with a notch facing one side of the main gear; after the driving cylinder is fixed on the main gear, the auxiliary gear and the main gear are tightly attached and the teeth on the two are aligned one by one. The invention adopts a combined structural design, and can install the pinion and dismantle the pinion according to the actual use requirement, and the gear structural design has the advantages of small occupied space, high integration level, rich functions, stable and reliable integral structure and good stress condition, and can match and meet the use requirements of different working conditions.

Description

Combined driving gear

Technical Field

The invention belongs to the technical field of gear design and production and manufacture, and particularly relates to a combined driving gear.

Background

The gear is widely applied to various devices and vehicles as a power transmission mechanism. The gear structure is characterized in that the gear structure is designed according to different power transmission requirements and structural design requirements, the common gears in the prior art are mostly in single gear structure, and the universality of the common gears is difficult to meet the requirements due to different gear thicknesses required by certain application working conditions. Especially to the operating mode of unipolar input and multiunit output, prior art generally adopts the meshing transmission of a plurality of gears to the structural style of gear pair reaches the purpose that provides a plurality of outputs, and the gear is in large quantity, and the gear generally all need install on the gear shaft, and the gear shaft needs the bearing frame again to install on fixed basis, and the structure is complicated, uses and maintains the cost height, and occupation space is big simultaneously, has also increased equipment dead weight. Therefore, there is a need for an improvement to existing gears having a multiple output configuration.

Disclosure of Invention

In view of the above, the present invention provides a combined driving gear to overcome the defects in the prior art.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a combined driving gear comprises a main gear and a driving cylinder arranged on the main gear, wherein a small driving wheel is arranged at the tail end of the driving cylinder, and an auxiliary gear is detachably arranged on the driving cylinder; the inner wall of the driving barrel, facing one end of the main gear, is provided with a driving barrel key groove, and the key groove is provided with a notch facing one side of the main gear;

after the driving barrel is fixed on the main gear, the auxiliary gear is tightly attached to the main gear, teeth on the auxiliary gear and the main gear are aligned one by one, at the moment, key grooves of the driving barrel on the driving barrel are aligned with main key grooves on the main gear, at the moment, the two key grooves are communicated, namely, when the driving shaft is connected through the main key, the main key is simultaneously connected with the main gear and the driving barrel, and acting force of the driving shaft can simultaneously act on the main gear and the driving barrel.

Furthermore, the auxiliary gear is connected with the driving cylinder through a key.

Furthermore, the driving barrel is connected with the main gear through a connecting piece.

Further, the connecting piece comprises a connecting screw which is arranged along the radial direction of the driving cylinder, penetrates through a connecting hole on the driving cylinder and is screwed and fixed on the main gear.

Furthermore, a sinking platform is arranged on the inner wall of the driving cylinder corresponding to the connecting hole.

Further, the thickness of the small driving wheel is smaller than that of the auxiliary gear, and the thickness of the auxiliary gear is smaller than that of the main gear.

Further, the small driving wheel and the pinion are arranged at intervals.

Compared with the prior art, the invention has the following advantages:

the driving gear provided by the invention adopts a combined structural design, the pinion can be arranged according to actual use requirements, the width of the main gear is increased, the power transmission capability is improved, and when the pinion is not needed, the pinion can be detached to reduce the weight of the whole structure. The gear structure design has the advantages of small occupied space, high integration level, stable and reliable integral structure and good stress condition, and can be matched with and meet the use requirements of different working conditions.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

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

FIG. 2 is a schematic view of the present invention with the pinion removed;

FIG. 3 is a schematic view of a driving cylinder and a small driving wheel portion in an embodiment of the invention;

FIG. 4 is a schematic view of the present invention in a state of connecting the driving shaft;

fig. 5 is a schematic view of fig. 4 with the pinion removed.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

A combined driving gear, as shown in fig. 1 to 5, comprises a main gear 1 and a driving cylinder 2 arranged on the main gear, wherein a small driving wheel 3 is arranged at the tail end of the driving cylinder, and a secondary gear 4 is also detachably arranged on the driving cylinder.

A driving barrel key groove 5 is formed in the inner wall of one end, facing the main gear, of the driving barrel, and a notch is formed in one side, facing the main gear, of the key groove; the position of corresponding installation pinion on the driving barrel outer wall is equipped with second keyway 10, installs second key 11 in the second keyway, promptly, connects through the second key between pinion and the driving barrel, realizes power transmission.

After the driving barrel is fixed on the main gear, the auxiliary gear is tightly attached to the main gear, teeth on the auxiliary gear and the main gear are aligned one by one, at the moment, a key groove of the driving barrel on the driving barrel is aligned with a key groove 6 on the main gear, at the moment, the two key grooves are communicated, namely, when the driving shaft 12 is connected through the main key 9, the main key is simultaneously connected with the main gear and the driving barrel, and the acting force of the driving shaft can simultaneously act on the main gear and the driving barrel. It should be noted that, after the main key is connected with the driving shaft, the stress condition at the tail end of the driving cylinder is better, and the structural stability of the driving cylinder is guaranteed.

In an alternative embodiment, the above-mentioned drive cylinder is also connected with the main gear by means of a connecting element 7. The connecting piece comprises a connecting screw arranged along the radial direction of the driving cylinder, and the connecting screw penetrates through a connecting hole on the driving cylinder and is screwed and fixed on the main gear.

Usually, a sinking platform 8 is arranged on the inner wall of the driving cylinder corresponding to the connecting hole, and the nut part of the connecting screw is sunk into the sinking platform. It should be noted that the torque between the main gear and the drive barrel is transmitted by the second key. Because the axial load between the driving cylinder and the main gear is generally small, and in addition, a positioning table for positioning the driving cylinder can be designed on the main gear, the load born by the connecting piece is also small, and the connecting piece is used for fixing the driving cylinder and the main gear, and mainly for keeping the relative positions of the driving cylinder and the main gear.

The thickness of the small driving wheel is smaller than that of the pinion gear, and the thickness of the pinion gear is smaller than that of the main gear. The small driving wheel can be integrally formed with the driving cylinder, or the small driving wheel and the driving cylinder can be fixed by welding or a connecting piece. The structure stability between the small driving wheel and the driving cylinder is ensured, and the synchronous rotation can be realized.

In order to facilitate the installation of a set of independent transmission device on the small driving wheel, the small driving wheel and the pinion are usually arranged at intervals, and a transmission belt or a transmission chain is installed on the small driving wheel, so that one set of transmission device can be driven to operate, and the driving gear can drive two sets of power assemblies simultaneously.

The driving gear provided by the invention adopts a combined structural design, the pinion can be arranged according to actual use requirements, the width of the main gear is increased, the power transmission capability is improved, and when the pinion is not needed, the pinion can be detached to reduce the weight of the whole structure, so that the driving gear has strong adaptability and good universality.

Meanwhile, the small driving teeth can be used as independent driving output ends to drive a transmission belt, a chain or another group of gears, and the functions are rich. The gear structure design has the advantages of small occupied space, high integration level, stable and reliable integral structure and good stress condition, and can be matched with and meet the use requirements of different working conditions.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.

Claims

1. A modular drive gear which characterized in that:

the device comprises a main gear and a driving cylinder arranged on the main gear, wherein a small driving wheel is arranged at the tail end of the driving cylinder, and a pinion is detachably arranged on the driving cylinder;

the inner wall of the driving barrel, facing one end of the main gear, is provided with a driving barrel key groove, and the key groove is provided with a notch facing one side of the main gear;

after the driving barrel is fixed on the main gear, the pinion and the main gear are tightly attached, teeth on the pinion and the main gear are aligned one by one, and at the moment, a key groove of the driving barrel on the driving barrel is aligned with a main key groove on the main gear.

2. The combination drive gear of claim 1, wherein: the auxiliary gear is connected with the driving cylinder through a key.

3. A modular drive gear according to claim 1 or claim 2 in which: the driving cylinder is connected with the main gear through a connecting piece.

4. The combination drive gear of claim 3, wherein: the connecting piece comprises a connecting screw which is arranged along the radial direction of the driving cylinder, penetrates through a connecting hole on the driving cylinder and is screwed and fixed on the main gear.

5. The combination drive gear of claim 4, wherein: and a sinking platform is arranged on the inner wall of the driving cylinder corresponding to the connecting hole.

6. The combination drive gear of claim 1, wherein: the thickness of the small driving wheel is smaller than that of the pinion gear, and the thickness of the pinion gear is smaller than that of the main gear.

7. The combination drive gear of claim 1, wherein: the small driving wheel and the pinion are arranged at intervals.