Fabricated coupling structure

Abstract

The utility model discloses an assembly type coupling structure, which comprises a mounting flange and a connecting shaft, the mounting flange is detachably connected with the connecting shaft, one end of the mounting flange is coaxially provided with a cylindrical connecting boss, the connecting shaft comprises a spline shaft and a middle shaft which are integrated and coaxial, and the spline shaft is connected with the middle shaft. A connecting groove is formed in the end face of the end, deviating from the spline shaft, of the middle shaft, and the connecting boss is detachably and fixedly inserted into the connecting groove, so that the connecting shaft is detachably and fixedly connected with the mounting flange. The spline shaft and the mounting flange in a traditional coupling are separated and detachably and fixedly connected, when part of components are damaged, the components can be rapidly replaced, so that the maintenance time is shortened, and the maintenance cost is reduced due to the fact that part of the components are damaged and the replacement cost is low. Meanwhile, the rigidity of the detachable connecting structure is small, and the detachable connecting structure is not prone to sudden breakage compared with an integral structure, has a certain buffering effect and is high in safety.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, and in particular to an assembled coupling structure. Background Technology

[0002] With the advancement of high-end manufacturing, the problem of torsional vibration in the transmission process cannot be ignored. Elastic damping couplings, installed in the shaft system, are extremely important as one of the effective devices to protect the shaft system from damage caused by torsional vibration. In shaft systems powered by internal combustion engines, the integrity of the couplings is a key factor in ensuring the normal operation of the shaft system. During operation, couplings can wear and even be damaged due to torsional transmission and vibration damping. Timely and efficient maintenance will reduce the user's overall costs and shorten maintenance time.

[0003] The splined shaft is a crucial component of couplings and is highly susceptible to damage due to friction. Existing splined shafts are integrated with the mounting flange, requiring remachining when damaged, which prolongs coupling maintenance time and increases overall costs. Furthermore, the integral splined shaft has greater rigidity, making it prone to sudden breakage during use, which can easily lead to safety accidents. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an assembled coupling structure, which solves the problems of long maintenance time, high maintenance cost and easy safety accidents of existing couplings.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An assembled coupling structure includes a mounting flange and a connecting shaft. The mounting flange and the connecting shaft are detachably connected. A columnar connecting boss is coaxially provided on one side of the mounting flange. The connecting shaft includes an integrally formed splined shaft and an intermediate shaft coaxially arranged. A connecting groove is provided on the end face of the intermediate shaft opposite to the splined shaft. The connecting shaft is fitted into the connecting boss through the connecting groove and is detachably connected to the connecting boss, so that the connecting shaft and the mounting flange are connected as one unit.

[0007] As an optimization, the connecting boss is a cylindrical structure with multiple positioning grooves spaced apart on its periphery. Multiple connecting holes corresponding to the limiting grooves and penetrating the groove walls are distributed around the groove walls. Positioning pins are installed in the connecting holes, and the positioning pins pass through the connecting holes and are inserted into the positioning grooves.

[0008] As an optimization, the positioning groove is provided with an internal thread, and the positioning pin is an auxiliary screw with an external thread that is threadedly connected to the positioning groove at one end, and the other end is clearance-fitted into the connecting hole.

[0009] As an optimization, the positioning groove is a hemispherical groove, the connecting hole is provided with an internal thread, and the positioning pin is an auxiliary screw, with one end of the pin inserted into the positioning groove being shaped into a spherical end that matches the hemispherical groove, and the other end being provided with an external thread that connects with the thread of the connecting hole.

[0010] As an optimization, the connecting shaft and the mounting flange are installed in the connecting groove with an interference fit of the connecting boss using the red fitting method.

[0011] As an optimization, the connecting boss is a regular polygonal structure, and correspondingly, the connecting groove is also a regular polygonal structure.

[0012] Compared with the prior art, this application has the following advantages:

[0013] This invention separates the splined shaft and mounting flange from the traditional coupling and connects them detachably. When some components are damaged, they can be quickly replaced, shortening maintenance time. Furthermore, because the damage is partial, the replacement cost is lower, thus reducing maintenance costs. At the same time, the detachable connection structure has lower rigidity, making it less prone to sudden breakage compared to a monolithic structure, providing a certain degree of cushioning and higher safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] In the diagram, 1 is the mounting flange, 2 is the connecting boss, 3 is the splined shaft, 4 is the intermediate shaft, 5 is the positioning groove, 6 is the connecting hole, and 7 is the positioning pin. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] For specific implementation: see [link / reference] Figure 1 ,

[0018] Example 1: An assembled coupling structure includes a mounting flange 1 and a connecting shaft. The mounting flange 1 and the connecting shaft are detachably connected. A cylindrical connecting boss 2 is coaxially provided on one side of the mounting flange 1. The connecting shaft includes an integral and coaxial splined shaft 3 and an intermediate shaft 4. A connecting groove is provided on the end face of the intermediate shaft 4 opposite to the splined shaft 3. The connecting boss 2 is detachably and fixedly inserted into the connecting groove, so that the connecting shaft and the mounting flange 1 are detachably and fixedly connected.

[0019] This invention separates the splined shaft 3 and mounting flange 1 in a traditional coupling and allows for detachable and fixed connection. When some components are damaged, they can be quickly replaced, thus shortening maintenance time. Furthermore, because the damage is partial, the replacement cost is lower, thereby reducing maintenance costs. Simultaneously, the detachable connection structure has lower rigidity, making it less prone to sudden breakage compared to a monolithic structure, providing a certain degree of buffering and higher safety.

[0020] Specifically, the connecting shaft and mounting flange 1 are installed in the connecting groove with an interference fit of the connecting boss 2 using a hot-fitting method. The hot-fitting method is a conventional assembly method that utilizes the thermal expansion and contraction properties of metal materials to create an interference fit. This interference fit connection method can ensure the relative fixation of the spline shaft 3 and mounting flange 1 under low torque conditions, but requires additional fixing measures under high torque conditions.

[0021] Specifically, multiple positioning grooves 5 are spaced apart around the connecting boss 2. Multiple connecting holes 6, corresponding to the limiting grooves and penetrating the groove walls, are distributed around the groove walls. Positioning pins 7 are installed in the connecting holes 6, passing through the connecting holes 6 and inserted into the positioning grooves 5. The positioning grooves 5 have internal threads. The positioning pins 7 are auxiliary screws; one end inserted into the positioning groove 5 has external threads that connect with the positioning groove 5, while the other end is clearance-fitted into the connecting holes 6. In this way, the splined shaft 3 can be positioned, and the connection between the connecting shaft and the mounting flange 1 is further strengthened, thereby ensuring the relative fixation and synchronous rotation of the mounting flange 1 and the connecting shaft.

[0022] Meanwhile, when the shaft system malfunctions or is operated incorrectly, the relative rotation between the connecting groove and the connecting boss 2 or the breakage of the locating pin 7 can prevent the coupling from brittle fracture, thus improving safety. Furthermore, the friction between the connecting boss 2 and the connecting groove, as well as the friction between the broken locating pin 7 and the connecting groove or connecting boss 2, can slow down the relative displacement or displacement speed between the connecting shaft and the mounting flange 1, thereby preventing the sudden and complete disengagement of the power source and improving safety.

[0023] In Embodiment Two, unlike Embodiment One, the positioning groove 5 is a hemispherical groove, the connecting hole 6 has an internal thread, and the positioning pin 7 is an auxiliary screw. One end of the pin inserted into the positioning groove 5 is formed into a spherical end that mates with the hemispherical groove, while the other end has an external thread that connects with the connecting hole 6. This combination of the spherical end structure and the threaded connection at the other end enhances the shear resistance of the positioning pin 7. Furthermore, in the event of shaft malfunction or operational error, the spherical end of the positioning pin 7 can slide out of the hemispherical groove, mitigating breakage or separation between the connecting shaft and the mounting flange 1 through friction or damage to the positioning groove 5, thus improving safety.

[0024] In Example 3, unlike Examples 1 and 2, the connecting boss 2 is a regular polygonal structure, and correspondingly, the connecting groove is also a regular polygonal structure to improve transmission stability.

[0025] Although embodiments of the present invention have been shown and described, those skilled in the art can make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and basis of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Therefore, the embodiments of the present invention are merely illustrative examples and do not constitute a limitation on the present invention in any way.

Claims

1. An assembled coupling structure, characterized in that, The mounting flange is coaxially provided with a connecting boss in a columnar shape on one side, and the connecting shaft comprises a spline shaft and an intermediate shaft which are integrally formed and coaxially arranged, and a connecting groove is formed on the end face of the intermediate shaft away from the spline shaft, the connecting shaft is sleeved into the connecting boss through the connecting groove and detachably connected with the connecting boss, so that the connecting shaft and the mounting flange are connected as a whole.

2. The assembled coupling structure according to claim 1, wherein The connecting boss is in a cylindrical structure, a plurality of positioning grooves are distributed at intervals on the circumferential side of the connecting boss, a plurality of connecting holes corresponding to the limiting grooves and penetrating the groove wall are distributed around the connecting groove on the groove wall, and a positioning pin is installed in the connecting hole and inserted into the positioning groove through the connecting hole.

3. The assembled coupling structure according to claim 2, wherein The positioning groove is provided with an internal thread, and the positioning pin is an auxiliary screw, one end of which is provided with an external thread for thread connection with the positioning groove, and the other end is clearance-fitted in the connecting hole.

4. The assembled coupling structure according to claim 2, wherein The positioning groove is a semispherical groove, the connecting hole is provided with an internal thread, and the positioning pin is an auxiliary screw, one end of which is formed into a spherical end matched with the semispherical groove, and the other end is provided with an external thread for thread connection with the connecting hole.

5. The assembled coupling structure according to claim 1, wherein The connecting boss is installed in the connecting groove in interference fit through the red assembly method.

6. The assembled coupling structure according to claim 1, wherein The connecting boss is in a regular polygon structure, and correspondingly, the connecting groove is also in a regular polygon structure.

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