CN216715021U

CN216715021U - Coupling structure easy to process

Info

Publication number: CN216715021U
Application number: CN202123105859.3U
Authority: CN
Inventors: 薛胜龙; 胡腾; 李聪; 龙志祥; 李雪怡; 冯贵洪
Original assignee: Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd
Current assignee: Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-06-10
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses a coupler structure easy to process, which comprises a body (1), wherein the body (1) is of a cylindrical structure; the excircle of the body (1) is divided into a small outer diameter section (2) and a large outer diameter section (3), the large outer diameter section (3) is provided with a waist-shaped hole (4), and inner grooves (5) are arranged in inner holes at two ends of the waist-shaped hole (4); the inner hole of the excircle small outer diameter section (2) of the body (1) is a fillet rectangular hole (6). By adjusting the structural form of the transmission part, the novel coupling processing method is simple, the dimensional precision and the luminosity are easy to guarantee, and the cost is low; the key groove on the left side of the coupler is changed into the combination of the waist-shaped hole and the inner groove; the special-shaped hole on the right side of the coupler is changed into a round-corner rectangular hole. The utility model is suitable for the condition that the processing cost of a similar coupling structure needs to be reduced.

Description

Coupling structure easy to process

Technical Field

The utility model relates to a coupler structure easy to process, and belongs to the technical field of transmission connection of instrument and equipment.

Background

Along with the gradual upgrading and development of the instrument and equipment towards the intelligent direction. Traditional purely mechanical instruments are gradually upgraded to complex intelligent electric instruments, and the functions and the execution actions of the instruments are more complex. To achieve various actions, power transmission between a power source (e.g., a motor) and a specific actuator is required. The coupling is a general mechanical component, which is widely used in the power transmission stage of various mechanical devices. Particularly, in some special fields limited by space size, the existing coupler cannot be directly used and needs to be specially designed. In addition, most of the key grooves of the existing coupling are matched with blind holes, special methods such as electric sparks and the like are needed for processing, and due to the fact that the electric sparks are used in the processing process, the loss of electrodes and the like, the size of the key grooves is easy to be out of tolerance and the overall luminosity is poor; the hole for connecting the coupler and the transmission shaft is a special-shaped hole and needs to be processed by adopting methods such as linear cutting and the like; the common fast wire-moving can cause the luminosity difference of the cut surface; while the slow-running wire processing has high cost; because the existing processing method of the coupler has certain particularity, the processing cost of the whole coupler is increased, and the quality is not satisfactory.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a coupler structure easy to machine, so that the machining difficulty and the machining cost of a coupler are reduced, and meanwhile, the product quality is improved.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model relates to a coupling structure easy to process, which comprises a body, wherein the body is of a cylindrical structure; the body excircle is divided into little external diameter section and big external diameter section, and big external diameter section is equipped with waist shape hole, is equipped with interior slot in the hole at waist shape hole both ends.

In the coupling structure easy to machine, the inner hole of the outer circle small outer diameter section of the body is a round-corner rectangular hole.

Due to the adoption of the technical scheme, compared with the prior art, the coupler key groove is changed into the combination of the waist-shaped hole and the inner groove; meanwhile, the special-shaped hole on the right side of the coupler is changed into a round-corner rectangle. The coupler structure is simple to process by adjusting the transmission form, the size precision and luminosity of the coupler are easy to ensure, and the processing cost is low; the method is particularly suitable for the condition that the processing cost of a similar coupling structure needs to be reduced.

Drawings

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

FIG. 2 is a schematic external view of the present invention;

FIG. 3 is a schematic view of a coupling structure of the prior art;

fig. 4 is a schematic view of the present invention connecting a motor and a drive shaft.

The labels in the figures are: 1-body, 2-small outer diameter section, 3-large outer diameter section, 4-waist-shaped hole, 5-inner groove, 6-round corner rectangular hole, 7-existing coupler, 8-key slot, 9-special-shaped hole, 10-flat key, 11-motor output shaft and 12-transmission shaft.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples.

The utility model discloses a coupling structure easy to process, which comprises a body 1, wherein the body 1 is of a cylindrical structure, as shown in figures 1 and 2; the excircle of the body 1 is divided into a small outer diameter section 2 and a large outer diameter section 3, the large outer diameter section 3 is provided with a waist-shaped hole 4, and inner grooves 5 are arranged in inner holes at two ends of the waist-shaped hole 4. The inner hole of the excircle small outer diameter section 2 of the body 1 is a round-corner rectangular hole 6.

The utility model is an improvement of the existing coupling 7, the structure of the existing coupling 7 is shown in figure 3, the key slot 8 on the existing coupling is a blind slot, and special methods such as electric spark and the like are needed for processing, and because of the loss of electrodes and the like in the electric spark processing process, the size of the key slot 8 is easy to be out of tolerance and the integral luminosity is poor; the special-shaped hole 9 on the right side of the existing coupler needs to be processed by methods such as linear cutting and the like; the common fast wire-moving can cause the luminosity difference of the cut surface; while the slow-running wire processing has high cost; because the existing processing method of the coupler 7 has certain particularity, the whole processing cost is increased, but the processing effect of parts is poor.

The coupling structure of the utility model is shown in fig. 1 and fig. 2, and the key groove 8 in the existing coupling 7 is changed into a combination form of a kidney-shaped hole 4 and an inner groove 5. In specific implementation, the waist-shaped hole 4 is milled; the width of the waist-shaped hole 4 is slightly wider than that of the flat key 10, so that the flat key 10 can be smoothly installed; as shown in fig. 4, the length of the waist-shaped hole 4 is shorter than that of the flat key 10, so that the flat key 10 cannot fall off from the waist-shaped hole 4 in the radial direction during transmission; because the length of the waist-shaped hole 4 is shorter than that of the flat key 10, in order to ensure the installation of the flat key 10, inner grooves 5 are respectively turned in inner holes at two ends of the waist-shaped hole 4, the inner diameter of each inner groove 5 is equal to the size of an outer circle of the shapes of the motor output shaft 11 and the flat key 10, and the inner grooves are used for accommodating the parts of two ends of the flat key 10, which exceed the waist-shaped hole 4; the special-shaped hole 9 of the existing coupler 7 is changed into a round-corner rectangular hole 6. The round-corner rectangular hole 6 is connected with a transmission shaft 12.

The waist-shaped hole 4, the inner groove 5 and the round-corner rectangular hole 6 can be processed by conventional milling and turning, the processing method is simple, the size precision and the luminosity are easy to guarantee, and the cost is low.

Due to the adoption of the technical scheme, the utility model has the following characteristics:

by adjusting the structural form of the transmission part, the novel coupling processing method is simple, the dimensional precision and the luminosity are easy to guarantee, and the cost is low; the key groove on the left side of the coupler is changed into a combination of a waist-shaped hole and an inner groove; the special-shaped hole on the right side of the coupler is changed into a round-corner rectangular hole. The novel coupler is suitable for the condition that the machining cost of a similar coupler structure needs to be reduced.

Claims

1. The utility model provides an easy shaft coupling structure who processes which characterized in that: comprises a body (1), wherein the body (1) is of a cylindrical structure; the excircle of the body (1) is divided into a small outer diameter section (2) and a large outer diameter section (3), the large outer diameter section (3) is provided with a waist-shaped hole (4), and inner grooves (5) are arranged in inner holes at two ends of the waist-shaped hole (4).

2. The easy-to-machine coupling structure of claim 1, wherein: the inner hole of the outer circle small outer diameter section (2) of the body (1) is a round corner rectangular hole (6).