CN204729487U - Axle and axle docking structure - Google Patents

Abstract

The utility model provides a kind of axle and axle docking structure, comprises driving shaft, driven shaft and coupling, described coupling one end and described driving shaft Profile Connection, the described coupling the other end and described driven shaft Profile Connection.A kind of axle that the utility model provides and axle docking structure, Profile Connection is adopted to compare relative to traditional key connecting, there is linking intensity high, stress is not had to concentrate, can transmitting large torque and efficiency high while also can to withstand shocks load, and for some big machineries its easy accessibility of equipment and maintenance convenient.

Description

Shaft-to-shaft docking structure

technical field

The utility model relates to the technical field of shaft-to-shaft docking in mechanical design, in particular to a shaft-to-shaft docking structure of profile connection.

Background technique

In large equipment, a lot of power transmission is realized by the cooperation of shafts and shafts and shafts and holes. In some occasions, the stroke of torque transmission is relatively large. If one shaft is used, the vibration of the shaft will cause the transmission instability due to the long length. Therefore, in this case, more shafts are used to pass through the coupling. Connected together to achieve long-distance torque transmission.

The shaft-to-shaft couplings are usually connected by traditional keys or splines. Ordinary keyed joints have disadvantages such as low strength, stress concentration at sharp corners, and inability to automatically center. Splined joints can avoid the disadvantages of ordinary keyed joints. Some shortcomings, but there are still deficiencies such as inability to eliminate stress concentration, centering and processing on special machine tools, inconvenient assembly and inconvenient maintenance.

Utility model content

The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides a shaft-to-axis butt joint structure, which solves the problems of stress concentration, centering and processing, assembling and Technical problems that are inconvenient to repair.

The technical scheme adopted by the utility model to solve the technical problem is: a shaft-to-shaft docking structure, including a driving shaft, a driven shaft and a coupling, one end of the coupling is connected to the profile of the driving shaft, and the The other end of the coupling is coupled with the driven shaft profile. The joint between the coupling and the shaft realizes the rotational connection between the shaft and the shaft, which solves the problems of key connection stress concentration, centering and processing on special machine tools, assembly and maintenance inconvenience.

A specific technical solution for realizing profile connection is as follows: one end of the coupling is provided with a connecting hole for the driving shaft, the driving shaft is connected with the connecting hole of the driving shaft, and the other end of the coupling is provided with a driven shaft A connection hole, the driven shaft is surface-connected with the connection hole of the driven shaft. There are connecting holes at both ends of the coupling, and the ends of the driving shaft and the driven shaft are inserted into the connecting holes when connecting, and the driving shaft drives the driven shaft to rotate through the profile connection.

Specifically, the inner side of the cross section of the driving shaft connection hole is triangular, square, regular hexagonal or elliptical.

Specifically, the inside of the cross section of the driven shaft connection hole is triangular, square, regular hexagonal or elliptical.

Further, in order to limit the distance of the shaft inserted into the end hole of the coupling and to prevent axial movement after insertion, the coupling is also provided with a limiting surface, which is located between the connecting hole of the driving shaft and the driven shaft. between shaft connection holes. The limit surface is used to realize the axial limit.

Another technical solution to realize profile connection is that one end of the coupling is provided with a drive shaft connection end, and the end of the drive shaft is provided with a drive shaft connection hole for profile connection with the drive shaft connection end, and the coupling The other end of the shaft device is provided with a driven shaft connecting end, and the driven shaft end is provided with a driven shaft connecting hole profile-connected with the driven shaft connecting end. The difference from the first technical solution is that the connecting holes of the shaft coupling are set at the ends of the driving shaft and the driven shaft, and the two ends of the coupling are provided with connecting surfaces corresponding to the connecting holes of the driving shaft and the driven shaft. .

Specifically, the outer side of the cross section of the connecting end of the drive shaft is triangular, square, regular hexagonal or elliptical.

Specifically, the outer side of the cross section of the connecting end of the drive shaft is triangular, square, regular hexagonal or elliptical.

Further, in order to limit the distance from which the end of the coupling is inserted into the connection hole of the shaft end and prevent axial movement after insertion, a limiting ring is also provided on the coupling, and the limiting ring is located at the connecting end of the driving shaft. between the connecting end of the driven shaft.

The beneficial effects of the utility model are: the shaft-to-shaft docking structure provided by the utility model adopts profile connection compared with the traditional key connection, which has high connection strength, no stress concentration, can transmit large torque and high efficiency At the same time, it can also withstand impact loads, and for some large mechanical equipment, it is easy to disassemble and maintain.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a structural schematic diagram of the shaft-to-shaft docking structure of the present invention.

Fig. 2 is a schematic structural diagram of the shaft coupling in Fig. 1 .

Fig. 3 is a schematic structural view of another embodiment of the present invention.

FIG. 4 is an exploded view of FIG. 3 .

In the figure: 1. Driving shaft, 2. Driven shaft, 3. Coupling, 4. Connecting hole of driving shaft, 5. Connecting hole of driven shaft, 6. Limiting surface, 7. Connecting end of driving shaft, 8. Driven shaft connection end, 9, limit ring.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in detail. This figure is a simplified schematic diagram, only schematically illustrating the basic structure of the utility model, so it only shows the configuration related to the utility model.

As shown in Figures 1-4, a shaft-to-shaft docking structure of the present invention includes a driving shaft 1, a driven shaft 2 and a coupling 3, and one end of the coupling 3 is connected to the profile of the driving shaft 1 The other end of the shaft coupling 3 is surface-coupled with the driven shaft 2 .

Embodiment 1: As shown in Figure 2, one end of the coupling 3 is provided with a driving shaft connecting hole 4, the driving shaft 1 is connected with the driving shaft connecting hole 4, and the other end of the coupling 3 is provided with The driven shaft connection hole 5, the driven shaft 2 is surface-connected with the driven shaft connection hole 5. Both ends of the coupling 3 are provided with connecting holes. When connecting, the ends of the driving shaft 1 and the driven shaft 2 are inserted into the connecting holes, and the driving shaft 1 drives the driven shaft 2 to rotate through the profile connection. In this embodiment, the cross section of the connecting hole 4 of the driving shaft is a square, and the cross section of the connecting hole 5 of the driven shaft is a regular hexagon. The cross section of the driving shaft connecting hole 4 can also be triangular, regular hexagonal or elliptical, and the cross section of the driven shaft connecting hole 5 can also be triangular, square or elliptical.

Further, in order to limit the distance of the shaft inserted into the end hole of the shaft coupling 3 and to prevent axial movement after insertion, the coupling 3 is also provided with a limit surface 6, which is located at the joint of the drive shaft. Between the hole 4 and the connecting hole 5 of the driven shaft. The limit surface 6 is used to realize the axial limit.

Another technical solution to realize profile connection is that one end of the coupling 3 is provided with a drive shaft connection end 7, and the end of the drive shaft 1 is provided with a drive shaft connection hole for profile connection with the drive shaft connection end 7 4. The other end of the coupling 3 is provided with a driven shaft connection end 8, and the end of the driven shaft 2 is provided with a driven shaft connection hole 5 which is surface-connected with the driven shaft connection end 8. In this embodiment, the cross-section of the connecting end 7 of the driving shaft is a square, the cross-section of the connecting end 8 of the driven shaft is a regular hexagon, and the cross-section of the connecting end 7 of the driving shaft can also be a triangle, a regular hexagon or an ellipse, from The cross section of the connecting end 8 of the moving shaft can also be triangular, square or elliptical.

Further, in order to limit the distance of the end of the shaft coupling 3 inserted into the connecting hole of the shaft end and prevent axial movement after insertion, the coupling 3 is also provided with a limit ring 9, which is located on the Between the connecting end 7 of the driving shaft and the connecting end 8 of the driven shaft.

Inspired by the above-mentioned ideal embodiment according to the present utility model, through the above-mentioned description content, relevant staff can make various changes and modifications without departing from the scope of the present utility model. The technical scope of this utility model is not limited to the contents in the description, and its technical scope must be determined according to the scope of the claims.

Claims (9)

1. an axle and axle docking structure, comprise driving shaft (1), driven shaft (2) and coupling (3), it is characterized in that: described coupling (3) one end and described driving shaft (1) Profile Connection, described coupling (3) the other end and described driven shaft (2) Profile Connection.

2. axle as claimed in claim 1 and axle docking structure, it is characterized in that: described coupling (3) one end is provided with driving shaft attachment hole (4), described driving shaft (1) and driving shaft attachment hole (4) Profile Connection, described coupling (3) the other end is provided with driven shaft attachment hole (5), described driven shaft (2) and driven shaft attachment hole (5) Profile Connection.

3. axle as claimed in claim 2 and axle docking structure, is characterized in that: for shape is triangle, square, regular hexagon or ellipse inside the cross section of described driving shaft attachment hole (4).

4. axle as claimed in claim 2 and axle docking structure, is characterized in that: be triangle, square, regular hexagon or ellipse inside the cross section of described driven shaft attachment hole (5).

5. the axle as described in any one of claim 2-4 and axle docking structure, it is characterized in that: described coupling (3) is also provided with confined planes (6), described confined planes (6) is positioned between described driving shaft attachment hole (4) and driven shaft attachment hole (5).

6. axle as claimed in claim 1 and axle docking structure, it is characterized in that: described coupling (3) one end is provided with driving shaft connecting end (7), described driving shaft (1) end is provided with the driving shaft attachment hole (4) with driving shaft connecting end (7) Profile Connection, described coupling (3) the other end is provided with driven shaft connecting end (8), and described driven shaft (2) end is provided with the driven shaft attachment hole (5) with driven shaft connecting end (8) Profile Connection.

7. axle as claimed in claim 6 and axle docking structure, is characterized in that: be triangle, square, regular hexagon or ellipse outside the cross section of described driving shaft connecting end (7).

8. axle as claimed in claim 6 and axle docking structure, is characterized in that: be triangle, square, regular hexagon or ellipse outside the cross section of described driving shaft connecting end (8).

9. the axle as described in any one of claim 6-8 and axle docking structure, it is characterized in that: described coupling (3) is also provided with limited ring (9), described limited ring (9) is positioned between described driving shaft connecting end (7) and driven shaft connecting end (8).