CN212616178U

CN212616178U - Low-weight and light-weight compact transmission gear

Info

Publication number: CN212616178U
Application number: CN202020826735.0U
Authority: CN
Inventors: 江维斌
Original assignee: Zhejiang Changbo Machinery Co ltd
Current assignee: Zhejiang Changbo Machinery Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-02-26
Anticipated expiration: 2030-05-18

Abstract

The utility model provides a slight compact drive gear of low weight belongs to gear manufacturing technical field. The transmission gear solves the problems that the existing transmission gear is heavy in structural design, heavy in quality, not easy to assemble and high in production cost. This slight compact drive gear of low weight includes the gear body, and the same axial in position at the middle part of gear body is provided with the gear shaft, and gear shaft and gear body link to each other formula structure as an organic whole, and the even shaft hole that sets up of same axial is seted up to gear shaft and gear body, is provided with the enhancement device that disperses both junctions torsional stress of gear shaft and gear body between gear shaft and the gear body. The utility model discloses simple structure is compact, structural design is comparatively stable, and mechanical strength is high, and the quality is lighter, convenient assembly, and manufacturing cost is lower.

Description

Low-weight and light-weight compact transmission gear

Technical Field

The utility model belongs to the technical field of the gear is made, a slight compact drive gear of low weight is related to.

Background

Gears are widely used in various fields of production and life as a common power transmission mode. The structure forms of the gears are various, and the gears are divided into cylindrical gears, bevel gears, non-circular gears, racks, worm gears and the like according to the shapes of the gears; according to the shape of the tooth trace, the gear is divided into a straight gear, a helical gear, a herringbone gear, a bevel gear, a curve gear and the like.

The transmission gear is one of the most widely used gears, the traditional transmission gear generally adopts an integrated structure of the gear body and the gear shaft in order to ensure the mechanical strength of the transmission gear, the gear shaft and the gear body are provided with a connecting shaft hole which is arranged in the same axial direction, a key groove is arranged in an early connecting hole, and a rotating shaft is arranged in the connecting holes of the gear shaft and the gear body in a penetrating way and is arranged in the corresponding key groove through a key block to enable the gear shaft and the gear body to be fixedly connected in an axial direction relatively.

In the transmission gear, for the structural stability of the gear body and the gear shaft, the wall thicknesses of the gear body and the gear shaft are usually set to be thicker, the structural design is heavier, and the problems of heavier mass, poor assembly and higher production cost exist.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, the quality is lighter, convenient assembly, the slight compact drive gear of low weight that manufacturing cost is lower.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a slight compact drive gear of low weight, includes the gear body, the outer wall circumference equipartition of gear body have the outer teeth of a cogwheel of a plurality of, form the tooth's socket between two adjacent outer teeth of a cogwheel, the same axial in position at the middle part of gear body be provided with the gear shaft, gear shaft and gear body link to each other formula structure as an organic whole, gear shaft and gear body set up the axle hole even that sets up of same axial, its characterized in that, gear shaft and gear body between be provided with the reinforcing means that disperses both junctions of gear shaft and gear body torsional stress.

In foretell slight compact drive gear of low weight, the enhancement device include the reinforcement sleeve that the same axial of the position of the middle part of the gear body set up, the gear shaft wear to locate the reinforcement sleeve in, radial interval department circumference interval distribution between gear shaft and the reinforcement sleeve have a reinforcing plate one that a plurality of is radially to be provided with, reinforcement sleeve and gear body between circumference interval distribution have a reinforcing plate two that a plurality of is radially to be provided with. During actual manufacturing, three reinforcing plates are uniformly distributed at the radial interval between the gear shaft and the reinforcing sleeve at intervals in the circumferential direction, the three reinforcing plates disperse torsional stress at the joint of the gear shaft and the gear body, and the gear shaft is high in mechanical strength and stable in structure; the two reinforcing plates are circumferentially and evenly distributed between the reinforcing sleeve and the gear body at intervals, and the two reinforcing plates are used for improving the mechanical strength between the reinforcing sleeve and the gear body.

In the low-weight and light-weight compact transmission gear, the axial distance of the gear shaft is higher than that of the reinforcing sleeve, the reinforcing plate I is radially positioned between the gear shaft and the reinforcing sleeve, the outer end face of the reinforcing plate I is flush with the outer end face of the gear shaft, the outer edge of the outer end face of the reinforcing plate I is provided with a first conical surface, and the conical surface of the reinforcing plate I extends to the joint of the reinforcing sleeve. The purpose of this arrangement is to reinforce the mechanical strength between the gear shaft and the reinforcing sleeve, and prevent the outer edge of the outer end face of the first reinforcing plate from causing assembly interference.

In the above low-weight and light-weight compact transmission gear, the second reinforcing plate is located radially between the reinforcing sleeve and the gear body, the outer end face of the second reinforcing plate is flush with the outer end face of the reinforcing sleeve, the outer edge of the outer end face of the second reinforcing plate is provided with a second conical surface, and the second conical surface of the second reinforcing plate extends to the joint with the gear body. The purpose of this arrangement is to reinforce the mechanical strength between the gear body and the reinforcing sleeve, and prevent the outer edge of the outer end face of the second reinforcing plate from causing assembly interference.

In the low-weight and light-weight compact transmission gear, each first reinforcing plate and each second reinforcing plate are distributed in a radially staggered manner, and a corresponding second reinforcing plate is arranged between every two adjacent first reinforcing plates. The purpose of the arrangement is to further disperse the torsional stress at the joint of the gear shaft and the gear body through the second reinforcing plate, so that the mechanical strength is high and the structure is stable; the service life is long.

In the low-weight and light-weight compact transmission gear, a plurality of lightening holes radially penetrating through the gear body are circumferentially distributed on the gear body at intervals, and the circumferential interval distance of each lightening hole is the same. When in actual use, each lightening hole not only has the function of strengthening the mechanical strength of the gear body, but also has the function of quickly radiating the heat of the gear body.

In the low-weight and light-weight compact transmission gear, two lightening holes are circumferentially distributed on the gear body between two adjacent reinforcing plates at intervals. The purpose of this setting is to make the atress on the gear body between two adjacent reinforcing plates two even.

In the above-mentioned one kind of low weight slightly compact transmission gear, the orifice of the connecting shaft hole on the gear body is chamfered to form a flare shape. This facilitates a guided installation.

Compared with the prior art, the low-weight slight compact transmission gear has the advantages that: the structure is simple and compact, the structural design is stable, the mechanical strength is high, the weight is light, the assembly is convenient, and the production cost is low.

Drawings

FIG. 1 is a front view of the low weight, lightly compact transmission gear.

Fig. 2 is a schematic sectional view in the direction of a-a in fig. 1.

Fig. 3 is a schematic sectional view in the direction of a-B in fig. 1.

In the figure, 1, a gear body; 2. outer gear teeth; 3. a gear shaft; 4. a shaft connecting hole; 5. a reinforcing sleeve; 6. a first reinforcing plate; 7. a second reinforcing plate; 8. a first conical surface; 9. a second conical surface; 10. lightening holes; 11. and (4) chamfering.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, fig. 2 and fig. 3, the low-weight light compact transmission gear mainly comprises a gear body 1, a plurality of outer gear teeth 2 are uniformly distributed on the outer wall of the gear body 1 in the circumferential direction, tooth spaces are formed between every two adjacent outer gear teeth 2, a gear shaft 3 is axially arranged at the middle part of the gear body 1, the gear shaft 3 and the gear body 1 are connected into an integral structure, a connecting shaft hole 4 is formed in the gear shaft 3 and the gear body 1 in the same axial direction, and a reinforcing device for dispersing torsional stress at the joint of the gear shaft 3 and the gear body 1 is arranged between the gear shaft 3 and the gear body 1.

In actual manufacturing, the concrete implementation mode of the reinforcing device is as follows: the gear shaft is mainly composed of a reinforcing sleeve 5 which is arranged in the middle of a gear body 1 in the same axial direction, a gear shaft 3 penetrates through the reinforcing sleeve 5, a plurality of radially arranged reinforcing plates 6 are circumferentially distributed at intervals at the radial interval between the gear shaft 3 and the reinforcing sleeve 5, and a plurality of radially arranged reinforcing plates 7 are circumferentially distributed at intervals between the reinforcing sleeve 5 and the gear body 1; in actual design, the axial distance of the gear shaft 3 is greater than that of the reinforcing sleeve 5, the reinforcing plate-6 is located between the gear shaft 3 and the reinforcing sleeve 5 in the radial direction, the outer end face of the reinforcing plate-6 is flush with the outer end face of the gear shaft 3, the outer edge of the outer end face of the reinforcing plate-6 is provided with a conical surface-8, and the conical surface of the reinforcing plate-6 extends to the joint with the reinforcing sleeve 5; the second reinforcing plate 7 is located between the reinforcing sleeve 5 and the gear body 1 in the radial direction, the outer end face of the second reinforcing plate 7 is flush with the outer end face of the reinforcing sleeve 5, the outer edge of the outer end face of the second reinforcing plate 7 is provided with a second conical surface 9, and the second conical surface 9 of the second reinforcing plate 7 extends to the joint of the second reinforcing plate and the gear body 1.

In practical application, each reinforcing plate I6 and each reinforcing plate II 7 are distributed in a radial staggered mode, and a corresponding reinforcing plate II 7 is arranged between every two adjacent reinforcing plates I6.

During actual manufacturing, six lightening holes 10 radially penetrating through the gear body 1 are circumferentially distributed on the gear body 1 at intervals, and the circumferential interval distance of each lightening hole 10 is the same; two lightening holes 10 are circumferentially distributed on the gear body 1 between two adjacent reinforcing plates 7 at intervals.

In actual manufacturing, the orifice chamfering angle 11 of the shaft connecting hole 4 on the gear body 1 is processed into a flaring shape.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a slight compact drive gear of low weight, includes gear body (1), the outer wall circumference equipartition of gear body (1) have a plurality of outer teeth of a cogwheel (2), form the tooth's socket between two adjacent outer teeth of a cogwheel (2), the same axial in position at the middle part of gear body (1) be provided with gear shaft (3), gear shaft (3) and gear body (1) link to each other formula structure as an organic whole, gear shaft (3) and gear body (1) set up axle hole (4) even of same axial setting, its characterized in that, gear shaft (3) and gear body (1) between be provided with the reinforcing means that disperses both junctions torsional stress of gear shaft (3) and gear body (1), reinforcing means include reinforcing sleeve (5) of the same axial setting in position at the middle part of gear body (1), gear shaft (3) wear to locate in reinforcing sleeve (5), radial interval department circumference interval distribution between gear shaft (3) and reinforcement sleeve (5) have a plurality of to be the radial reinforcing plate one (6) that are provided with, reinforcement sleeve (5) and gear body (1) between circumference interval distribution have a plurality of to be radial reinforcing plate two (7) that are provided with.

2. A low-weight slightly compact transmission gear according to claim 1, characterized in that the axial distance of the gear shaft (3) is longer than the axial distance of the reinforcing sleeve (5), the reinforcing plate one (6) is radially positioned between the gear shaft (3) and the reinforcing sleeve (5), the outer end face of the reinforcing plate one (6) is flush with the outer end face of the gear shaft (3), the outer edge of the outer end face of the reinforcing plate one (6) is provided with a tapered face one (8), and the tapered face of the reinforcing plate one (6) extends to the joint with the reinforcing sleeve (5).

3. A low-weight slightly compact transmission gear according to claim 2, wherein the second reinforcing plate (7) is located radially between the reinforcing sleeve (5) and the gear body (1), the outer end face of the second reinforcing plate (7) is flush with the outer end face of the reinforcing sleeve (5), the outer edge of the outer end face of the second reinforcing plate (7) is provided with a second conical surface (9), and the second conical surface (9) of the second reinforcing plate (7) extends to the joint with the gear body (1).

4. A low-weight and light-weight compact transmission gear according to claim 3, wherein each reinforcing plate one (6) and each reinforcing plate two (7) are radially offset, and a corresponding reinforcing plate two (7) is arranged between two adjacent reinforcing plates one (6).

5. A low-weight slightly compact transmission gear according to claim 4, characterized in that a plurality of lightening holes (10) radially penetrating through the gear body (1) are circumferentially distributed on the gear body (1) at intervals, and the circumferential interval distance of each lightening hole (10) is the same.

6. A low-weight and light-compact transmission gear according to claim 5, wherein two lightening holes (10) are circumferentially distributed on the gear body (1) between two adjacent reinforcing plates (7) at intervals.

7. A low-weight slightly compact power transmission gear according to claim 6, characterized in that the orifice chamfering (11) of the coupling shaft hole (4) on the gear body (1) is processed into a flared shape.