阅读说明：本技术 一种齿轮传动组件及传动箱 (Gear transmission assembly and transmission case ) 是由 张立 蔡晓敏 谭勇健 于 2020-07-27 设计创作，主要内容包括：本发明适用于机械设备技术领域,提供了一种齿轮传动组件及传动箱,所述齿轮传动组件包括：附加一级片齿,用于输入动能；附加二级轴齿,与附加一级片齿同轴转动连接,用于动能的输出；其中,附加一级片齿和附加二级轴齿之间通过扭力复位件进行连接；扭力复位件使附加一级片齿和附加二级轴齿贴合传动。由于扭力复位件存在着扭矩,使输入齿轮与附加一级片齿、附加二级轴齿与输出齿轮相贴,齿轮之间啮合就不存在间隙,所以输出旋转不存在虚位,能精准传动及回转,实现零间隙的渐开线齿轮传动。使传动稳定,减小了齿轮传动的波动。该组件拼接简单,安装方便,制造成本低,传动顺畅,便于推广实施。(The invention is suitable for the technical field of mechanical equipment, and provides a gear transmission assembly and a transmission case, wherein the gear transmission assembly comprises: a first-stage sheet tooth is added for inputting kinetic energy; the additional secondary shaft teeth are coaxially and rotatably connected with the additional primary sheet teeth and used for outputting kinetic energy; the additional primary sheet teeth and the additional secondary shaft teeth are connected through a torsion reset piece; the torsion reset piece enables the additional first-stage plate teeth and the additional second-stage shaft teeth to be in fit transmission. Because the torsion reset piece has torque, the input gear is attached to the additional first-stage plate tooth and the additional second-stage shaft tooth, and no gap exists between the gears due to meshing, so that output rotation does not have a virtual position, accurate transmission and rotation can be realized, and zero-gap involute gear transmission is realized. The transmission is stable, and the fluctuation of gear transmission is reduced. The assembly is simple in splicing, convenient to install, low in manufacturing cost, smooth in transmission and convenient to popularize and implement.)

1. A gear assembly, comprising:

a first-stage sheet tooth is added for inputting kinetic energy;

the additional secondary shaft teeth are coaxially and rotatably connected with the additional primary sheet teeth and used for outputting kinetic energy;

wherein, the additional primary sheet teeth and the additional secondary shaft teeth are connected through a torsion reset piece.

2. The gear transmission assembly according to claim 1, wherein the torsion return member is a torsion spring having hook-like structures at both ends thereof, and the additional primary plate teeth and the additional secondary shaft teeth are provided with corresponding nesting structures.

3. The gear transmission assembly according to claim 1, wherein the additional secondary shaft teeth are of a toothed cylindrical structure and are detachably nested with a fixed ring in a non-rotating manner.

4. The gear transmission assembly according to claim 2, wherein a spacer with supporting and limiting effects is nested between the additional primary stage teeth and the torsion spring on the additional secondary shaft teeth.

5. A transmission case, characterized in that it comprises:

a mounting frame;

the primary shaft tooth is rotationally connected to the mounting frame and used for inputting kinetic energy;

the transmission gear piece is rotatably connected to the mounting frame and meshed with the primary shaft teeth for transmission;

the output tooth piece is rotatably connected to the mounting frame, is meshed with the transmission gear piece and is used for outputting kinetic energy; and the number of the first and second groups,

a gear assembly according to any one of claims 1 to 4.

6. A gear box according to claim 5 wherein the mounting bracket includes a lower clamp plate, a middle clamp plate and an upper clamp plate, the middle clamp plate being disposed between the lower and upper clamp plates.

7. The transmission case as claimed in claim 6, wherein at least one positioning column with supporting and limiting functions is arranged between the lower clamping plate and the upper clamping plate.

8. The transmission case as claimed in claim 7, wherein the positioning post comprises a washer and a guide post, the guide post is a columnar structure with an expansion part at one end, the guide post penetrates through the middle clamping plate and is nested and matched with the washer, and the expansion part of the guide post and the washer are respectively arranged at two sides of the middle clamping plate.

9. A gear box according to claim 5 wherein the output carrier has an output shaft fixedly connected thereto coaxially.

10. A gear box according to claim 9 wherein the mounting bracket is removably provided with a boss through which the output shaft is rotatably mounted.

Technical Field

The invention belongs to the technical field of mechanical equipment, and particularly relates to a gear transmission assembly and a transmission case.

Background

The gear transmission is the most common mechanical transmission in modern machine equipment, is a main form for transmitting the power and motion of a machine, and the involute tooth profile gear is widely applied to the mechanical transmission due to the advantages of simple structure, mature production process, low cost and the like, however, certain errors exist in the machining, measurement and installation of an upper wheel, so that certain safety gear meshing tooth gaps must exist in the gear transmission in the design and use processes, certain transmission errors and rotation errors exist in the transmission process, accurate transmission and accurate reset cannot be realized, if no gear tooth gaps exist in the design or use processes, the transmission process can be blocked or unsmooth in rotation, as the manufacturing point brings about a plurality of industries or products, some industries or products have to select harmonic gears, but the harmonic gears are troubled due to expensive manufacturing cost and immature processes, the defects of miniaturization and the like cannot be realized, and many modern intelligent products cannot be used, so that the products are premature.

Disclosure of Invention

An object of an embodiment of the present invention is to provide a gear transmission assembly, which aims to solve the problem of high manufacturing cost.

Embodiments of the present invention are achieved by a gear assembly, comprising:

a first-stage sheet tooth is added for inputting kinetic energy;

the additional secondary shaft teeth are coaxially and rotatably connected with the additional primary sheet teeth and used for outputting kinetic energy;

the additional primary sheet teeth and the additional secondary shaft teeth are connected through a torsion reset piece; the torsion reset piece enables the additional first-stage plate teeth and the additional second-stage shaft teeth to be in fit transmission.

In the embodiment of the invention, the additional primary sheet tooth is meshed with the input gear, the input gear is meshed with the output gear, the additional secondary shaft tooth is also meshed with the output gear, the input gear drives the output gear to rotate so as to carry out transmission, the input gear drives the additional primary sheet tooth to rotate, and the torsion reset piece has torque so that the input gear is attached to the additional primary sheet tooth and the additional secondary shaft tooth are attached to the output gear, no gap exists between the gears due to the meshing, so that no virtual position exists in output rotation, accurate transmission and rotation can be realized, and zero-gap involute gear transmission is realized.

As a preferred embodiment of the invention, the torsion resetting piece is a torsion spring with hook-shaped structures at two ends, the additional primary sheet teeth and the additional secondary shaft teeth are provided with corresponding nested structures, two ends of the torsion spring can be fixedly connected with the nested structures, so that the detachable connection is realized, the connection is convenient and fast, the torsion resetting piece is a torsion spring, the torsion effect is good, the assembly is convenient, and the durability is good.

As a preferred embodiment of the invention, the additional secondary shaft teeth are of a toothed cylindrical structure, and a fixed ring is detachably nested on the additional secondary shaft teeth in a non-rotating mode. At the moment, the nested structure is arranged on the fixing ring, so that the detachable connection is realized, and the connection is convenient and fast.

As a preferred embodiment of the invention, a gasket is nested between the additional primary sheet tooth and the torsion spring on the additional secondary shaft tooth, and the gasket has a supporting and limiting effect on the additional primary sheet tooth, so that the torsional deformation of the surface torsion spring changes the position of the additional primary sheet tooth.

An embodiment of the present invention further provides a transmission case, including:

a mounting frame;

the primary shaft tooth is rotationally connected to the mounting frame and used for inputting kinetic energy;

the transmission gear piece is rotatably connected to the mounting frame and meshed with the primary shaft teeth for transmission;

the output tooth piece is rotatably connected to the mounting frame, is meshed with the transmission gear piece and is used for outputting kinetic energy; and the number of the first and second groups,

a gear assembly as described above;

wherein, additional second grade axle tooth rotates to be connected on the mounting bracket, and first-order piece tooth meshes with additional first-order piece tooth, and additional second grade axle tooth meshes with the output teeth piece.

As a preferred embodiment of the invention, the mounting frame comprises a lower clamping plate, a middle clamping plate and an upper clamping plate, the middle clamping plate is arranged between the lower clamping plate and the upper clamping plate, the primary shaft teeth are rotatably arranged between the lower clamping plate and the middle clamping plate, the output tooth sheet is rotatably arranged between the middle clamping plate and the upper clamping plate, and the transmission gear piece and the gear transmission assembly penetrate through the middle clamping plate and are rotatably connected between the lower clamping plate and the upper clamping plate, so that the mounting frame is convenient to splice, and the transmission box is convenient to mount.

As a preferred embodiment of the invention, at least one positioning column is arranged between the lower clamping plate and the upper clamping plate, the positioning column penetrates through the middle clamping plate, and the positioning column has a supporting and limiting effect on the lower clamping plate, the middle clamping plate and the upper clamping plate.

As a preferred embodiment of the present invention, the positioning column includes a gasket and a guide pillar, the guide pillar is a columnar structure with an expansion portion at one end, the guide pillar penetrates through the middle clamping plate and is nested and matched with the gasket, and the expansion portion of the guide pillar and the gasket are respectively located at two sides of the middle clamping plate, so that the mounting frame is assembled conveniently and quickly, and the mounting frame is convenient to form and structurally stabilize.

As a preferred embodiment of the invention, the output gear sheet is coaxially and fixedly connected with the output shaft, the output shaft passes through the mounting frame in a rotating mode, the output shaft is arranged to facilitate the output of kinetic energy, and the kinetic energy output mode is increased.

As a preferred embodiment of the invention, the mounting frame is detachably provided with a shaft sleeve, the output shaft can rotatably penetrate through the shaft sleeve, and the shaft sleeve has the functions of guiding and reducing friction force on the output shaft, so that the output shaft can rotate more smoothly.

According to the gear transmission assembly provided by the embodiment of the invention, the input gear drives the additional primary sheet tooth to rotate, and because the torsion reset piece has the torque, the input gear is attached to the additional primary sheet tooth, the additional secondary shaft tooth and the output gear, and no gap exists in the meshing between the gears, so that no virtual position exists in the output rotation, the accurate transmission and the rotation can be realized, and the transmission of the involute gear with zero gap can be realized. The transmission is stable, and the fluctuation of gear transmission is reduced. The assembly is simple in splicing, convenient to install, low in manufacturing cost, smooth in transmission and convenient to popularize and implement.

Drawings

FIG. 1 is a perspective view of a gear assembly according to an embodiment of the present invention;

FIG. 2 is an exploded view of a gear assembly according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a transmission case according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of an exploded view of a transmission case according to an embodiment of the present invention;

in the drawings: the structure comprises a lower clamping plate 1, a primary shaft tooth 2, a primary sheet tooth 3, an additional primary sheet tooth 4, a gasket 5, a torsion spring 6, a fixing ring 7, an additional secondary shaft tooth 8, a secondary shaft tooth 9, a gasket 10, a middle clamping plate 11, an output toothed sheet 12, an output shaft 13, a guide pillar 14, a shaft sleeve 15 and an upper clamping plate 16.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1-2, a structure diagram of a gear transmission assembly provided for an embodiment of the present invention includes:

a primary sheet tooth 4 is added for inputting kinetic energy;

the additional secondary shaft teeth 8 are coaxially and rotatably connected with the additional primary sheet teeth 4 and used for outputting kinetic energy;

wherein, the additional primary plate tooth 4 and the additional secondary shaft tooth 8 are connected through a torsion reset piece; the torsion resetting piece enables the additional primary plate teeth 4 and the additional secondary shaft teeth 8 to be in fit transmission.

In the embodiment of the invention, the additional primary sheet tooth 4 is meshed with the input gear, the input gear is meshed with the output gear, the additional secondary shaft tooth 8 is also meshed with the output gear, the input gear drives the output gear to rotate so as to carry out transmission, the input gear drives the additional primary sheet tooth 4 to rotate, and the torque reset piece has torque so that the input gear is attached to the additional primary sheet tooth 4 and the additional secondary shaft tooth 8 with the output gear, and no gap exists between the gears in the meshing process, so that no virtual position exists in the output rotation, the accurate transmission and the rotation can be realized, and the transmission of the involute gear with zero gap can be realized.

In an embodiment of the present invention, the additional primary plate tooth 4 and the additional secondary shaft tooth 8 may be two gear structures or one of the additional primary plate tooth 4 and the additional secondary shaft tooth 8 may be a toothed columnar structure and one may be a gear structure, and are slidably nested, and the torsion restoring member may be a torsion spring, a tension spring or other elastic structure, which is not described in detail herein.

As a preferred embodiment of the invention, the torsion reset piece is a torsion spring 6 with hook-shaped structures arranged at two ends, the additional primary sheet teeth 4 and the additional secondary shaft teeth 8 are provided with corresponding nested structures, two ends of the torsion spring 6 can be fixedly connected with the nested structures, so that the detachable connection is realized, the connection is convenient and fast, and the nested structures can be structures such as nested openings, hook grooves and the like. The torsion resetting piece is a torsion spring 6, so that the torsion effect is good, the assembly is convenient, and the durability is good.

As a preferred embodiment of the invention, the additional secondary shaft teeth 8 are of a toothed cylindrical structure, and a fixed ring 7 is detachably nested on the additional secondary shaft teeth in a non-rotating mode. At this moment, the nested structure is arranged on the fixing ring 7, the additional primary sheet teeth 4 are certainly not eliminated and are of a toothed cylindrical structure, the additional secondary shaft teeth 8 are of a gear-shaped structure, and the structures are designed equally, so that detachable connection is realized, and the connection is convenient and fast.

As a preferred embodiment of the invention, a gasket 5 is nested on the additional secondary shaft tooth 8 between the additional primary sheet tooth 4 and the torsion spring 6, and the gasket 5 has a supporting and limiting effect on the additional primary sheet tooth 4, so that the surface torsion spring 6 is twisted and deformed to change the position of the additional primary sheet tooth 4.

As shown in fig. 3 to 4, an embodiment of the present invention further provides a transmission case, including:

a mounting frame;

the primary shaft tooth 2 is rotatably connected to the mounting frame and used for inputting kinetic energy;

the transmission gear piece is rotatably connected to the mounting frame and meshed with the primary shaft teeth 2 for transmission;

the output tooth piece 12 is rotatably connected to the mounting frame, is meshed with the transmission gear piece and is used for outputting kinetic energy; and the number of the first and second groups,

a gear assembly as described above;

wherein, additional second grade axle tooth 8 rotates to be connected on the mounting bracket, and first order piece tooth 3 meshes with additional first order piece tooth 4, and additional second grade axle tooth 8 meshes with output teeth piece 12.

In the embodiment of the invention, the primary shaft tooth 2 is connected to an output shaft of a driving device, the primary shaft tooth 2 drives the primary sheet tooth 3 to rotate and enables the transmission gear part to rotate so as to enable the output tooth sheet 12 to rotate for transmission, the primary sheet tooth 3 drives the additional primary sheet tooth 4 to rotate, and the torque resetting part has torque so that the primary sheet tooth 3 is attached to the additional primary sheet tooth 4 and the additional secondary shaft tooth 8 are attached to the output tooth sheet 12, and gaps do not exist between the primary sheet tooth 3 and the additional primary sheet tooth 4 and between the additional secondary shaft tooth 8 and the output tooth sheet 12 due to meshing, so that output rotation does not have virtual positions, accurate transmission and rotation can be realized, zero-gap involute gear transmission is realized, and transmission is stable. The transmission gear piece can be an integrally arranged two-end gear structure or a fixed splicing combination of the primary sheet teeth 3 and the secondary shaft teeth 9, so that the assembly is convenient and fast.

As a preferred embodiment of the invention, the mounting frame comprises a lower clamping plate 1, a middle clamping plate 11 and an upper clamping plate 16, the middle clamping plate 11 is arranged between the lower clamping plate 1 and the upper clamping plate 16, the primary shaft tooth 2 is rotatably arranged between the lower clamping plate 1 and the middle clamping plate 11, the output tooth piece 12 is rotatably arranged between the middle clamping plate 11 and the upper clamping plate 16, and the transmission gear piece and the gear transmission assembly penetrate through the middle clamping plate 11 and are rotatably connected between the lower clamping plate 1 and the upper clamping plate 16, so that the mounting frame is convenient to splice, and the transmission box is convenient to mount.

As a preferred embodiment of the invention, at least one positioning column is arranged between the lower clamping plate 1 and the upper clamping plate 16, the positioning column penetrates through the middle clamping plate 11, and the positioning column has a supporting and limiting effect on the lower clamping plate 1, the middle clamping plate 11 and the upper clamping plate 16.

As a preferred embodiment of the present invention, the positioning column includes a washer 10 and a guide post 14, the guide post 14 is a columnar structure with an expansion part at one end, the guide post 14 penetrates through the middle clamping plate 11 and is nested and matched with the washer 10, and the expansion part of the guide post 14 and the washer 10 are respectively located at two sides of the middle clamping plate 11, so that the mounting rack is assembled conveniently and quickly, and the forming of the mounting rack and the structural stability are facilitated.

As a preferred embodiment of the invention, the output gear 12 is coaxially and fixedly connected with an output shaft 13, the output shaft 13 rotates to penetrate through the mounting frame, the arrangement of the output shaft 13 is convenient for outputting kinetic energy, a kinetic energy output mode is increased, a shaft sleeve 15 is detachably arranged on the mounting frame, the output shaft 13 rotatably penetrates through the shaft sleeve 15, and the shaft sleeve 15 has the functions of guiding and reducing friction force on the output shaft 13, so that the output shaft 13 rotates more smoothly. Output shaft 13 can rotate to be connected on well splint 11 to make output shaft 13 concatenation more stable, output tooth 12 can be connected or the nested concatenation of insection with output shaft 13 spike, thereby makes equipment convenient and fast.

The invention provides a gear transmission assembly in the above embodiment, and provides a transmission case based on the gear transmission assembly, wherein the additional primary sheet tooth 4 is meshed with an input gear, the additional secondary shaft tooth 8 is meshed with an output gear, and the torque reset piece has torque, so that the input gear is attached to the additional primary sheet tooth 4 and the additional secondary shaft tooth 8 to the output gear, and no gap exists between the gears due to the meshing, so that the output rotation has no virtual position, the accurate transmission and rotation can be realized, the zero-gap involute gear transmission can be realized, the transmission is stable, and the fluctuation of the gear transmission is reduced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.