A drum coupling with clamping and positioning function

Abstract

This utility model discloses a drum coupling with a clamping and positioning function, relating to the technical field of drum couplings. The utility model includes a fixed outer shell, a rear mounting plate, a fixed plate, a limiting component, and an annular cover plate. An annular cover plate is fixed to one end of the fixed outer shell. A limiting component is jointly provided inside the annular cover plate and the fixed outer shell. A rear mounting plate is fixed to the end of the fixed outer shell away from the annular cover plate. A fixed plate is fixed along the central axis inside the rear mounting plate. The limiting component includes a fixed sleeve and limiting teeth. Limiting teeth are fixed in a circular array on the inner wall of the fixed sleeve. This utility model, by setting up a fixed outer shell, a rear mounting plate, a fixed plate, a limiting component, and an annular cover plate, solves the problems of easy deviation between the centerline of the spline shaft of the drum coupling and the central axis of the coupling, and the inconvenience of assembly during coupling manufacturing.

Description

Technical Field

[0001] This utility model belongs to the technical field of drum couplings, and in particular relates to a drum coupling with a clamping and positioning function. Background Technology

[0002] Drum couplings are key transmission components in lifting equipment, connecting the motor, reducer, and drum. They are primarily used to transmit torque and rotary motion, while also compensating for installation errors and buffering impacts. Common types include gear couplings, lapel couplings, drum gear couplings, and universal couplings, each with its own characteristics. The core functions of drum couplings include power transmission, compensation for installation deviations, and buffering vibration and impact, thereby improving the stability and lifespan of the transmission system. However, drum couplings still have the following drawbacks in practical use:

[0003] In the production process, the drum coupling directly connects the splined shaft of the drum to the driving equipment. During installation, the splined shaft is directly connected to the transmission structure of the coupling. However, shaft centerline deviation is prone to occur during installation, affecting the ease of installation and setup of the coupling.

[0004] Secondly, as the drum couplings are used, they need to be assembled and installed together. During operation, the bearings in the coupling assembly are interference-fitted, which makes the installation and operation relatively troublesome. The assembly and installation of the couplings is not convenient in the manufacturing process. Utility Model Content

[0005] The purpose of this utility model is to provide a drum coupling with a clamping and positioning function. By setting a fixed outer shell, a rear mounting plate, a fixed plate, a limiting component and an annular cover plate, it solves the problem that the center line of the spline shaft of the drum coupling is prone to deviation from the center axis of the coupling, and that the assembly and installation of the coupling is not convenient in manufacturing.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a drum coupling with a clamping and positioning function, comprising a fixed housing, a rear mounting plate, a fixed plate, a limiting component, and an annular cover plate. One end of the fixed housing is fixed with an annular cover plate. A limiting component is jointly provided within the annular cover plate and the fixed housing. The rear mounting plate is fixed at the end of the fixed housing away from the annular cover plate. A fixed plate is fixed within the rear mounting plate along its central axis. The limiting component includes a fixed sleeve and limiting teeth. Limiting teeth are fixed in a circular array on the inner wall of the fixed sleeve. During operation, the limiting component is movably disposed within the fixed housing, the fixed plate is fixed within the rear mounting plate, and the fixed housing is mounted on the mounting surface via the rear mounting plate. The transmission structure is mounted within the fixed plate. The limiting component restricts the spline structure of the drum, and the limiting component is disposed on the fixed housing via the annular cover plate.

[0008] Furthermore, the fixed housing has an inner opening at one end near the rear mounting plate, and the fixed sleeve is movably connected in the inner opening. The fixed housing has threaded holes arranged in a ring array at one end away from the rear mounting plate. The inner opening at one end of the fixed housing near the rear mounting plate is used to movably connect the fixed sleeve and realize the radial positioning of the limiting component. The threaded holes arranged in a ring array at the other end are used to fix the annular cover plate to ensure the overall structural sealing. The cooperation between the inner opening and the fixed sleeve allows the drive shaft to rotate freely.

[0009] Furthermore, a fixing port is provided in the rear mounting plate along the central axis, and the fixing plate is fixed in the fixing port. The fixing port in the center of the rear mounting plate is used to fix the fixing plate and form the installation reference of the transmission structure. The fixing plate serves as the core support of the transmission shaft, ensuring the coaxiality of the transmission shaft when the rear mounting plate is connected to the external bracket.

[0010] Furthermore, a drive shaft is movably connected through the fixed disk along the central axis. Both ends of the drive shaft are fixed with connecting blocks. The two connecting blocks are respectively located at both ends of the rear mounting disk. The connecting blocks at both ends of the drive shaft in the fixed disk are respectively connected to the drum and the drive structure. The spline shaft of the drum transmits torque through the connecting blocks. The bidirectional connection design of the drive shaft realizes the synchronous transmission of power from the drive end to the drum.

[0011] Furthermore, the limiting component also includes an outer bearing. The outer bearing is fixed to the periphery of the fixed sleeve. The outer bearing is disposed inside the fixed housing and on the annular cover plate. The outer bearing on the periphery of the fixed sleeve is embedded between the fixed housing and the annular cover plate, converting sliding friction into rolling friction and reducing rotational resistance. The outer bearing also constrains the axial displacement of the fixed sleeve, ensuring the alignment accuracy of the spline shaft and the connecting block.

[0012] Furthermore, a sealing ring is fixed on the inner ring of the annular cover plate. The sealing ring is pressed against the periphery of the fixed sleeve. An installation bolt is movably connected in a ring array inside the sealing ring. The installation bolt passes through the annular cover plate and is threaded into the threaded hole. The sealing ring is pressed against the periphery of the fixed sleeve by the installation bolt to prevent external contaminants from entering the bearing area. The bolt fixes the annular cover plate through the threaded hole, forming a detachable sealing structure, which facilitates the maintenance of the internal components of the limit assembly.

[0013] This utility model has the following beneficial effects:

[0014] This invention solves the problem of misalignment between the centerline of the spline shaft of the drum coupling and the central axis of the coupling by setting up a fixed outer shell, a rear mounting plate, a fixed plate, and a limiting component. After inserting the connecting block behind the fixed plate into the mounting slot on the drum, the rear mounting plate is moved to align the mounting holes on the rear mounting plate with the mounting structure on the bracket. Then, the mounting bolts are inserted into the rear mounting plate and screwed into the bracket. The spline shaft on the drum can then be inserted into the limiting teeth in the fixed sleeve. The drum can then be rotated, causing the spline shaft to rotate. While pushing, the spline shaft is pushed until it is movably connected with the connecting block in the fixed sleeve. As the drive structure drives the connecting block of the rear mounting plate away from the fixed outer shell to rotate, the transmission shaft drives the connecting block and the spline shaft to rotate. The rotation of the fixed sleeve ensures the coaxiality of the rotation between the spline shaft and the drum.

[0015] This invention solves the problem of inconvenient assembly and installation in the manufacturing of drum couplings by setting up a fixed outer shell, a limiting component, and an annular cover plate. During the assembly of the fixed outer shell, limiting component, and annular cover plate, the fixing sleeve is inserted into the inner opening of the fixed outer shell, and the outer bearing is placed inside the fixed outer shell. Then, the annular cover plate is fitted onto the periphery of the fixing sleeve and movably connected to it via a sealing ring. Next, the mounting bolts are inserted into the annular cover plate and then screwed into the threaded holes on the fixed outer shell. After tightening, the limiting component and the fixed outer shell are installed together, making the assembly and installation of the drum coupling more convenient in manufacturing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional view of a partially cut-open structure of a drum coupling with a clamping and positioning function;

[0018] Figure 2A three-dimensional structural diagram of the fixed outer shell;

[0019] Figure 3 This is a three-dimensional structural diagram of the rear installation disk;

[0020] Figure 4 This is a three-dimensional view of the structure after the fixed disk part has been cut open.

[0021] Figure 5 This is a three-dimensional structural diagram of the limiting component;

[0022] Figure 6 This is a three-dimensional structural diagram of the annular cover plate.

[0023] Figure label:

[0024] 1. Fixed outer shell; 101. Inner opening; 102. Threaded hole; 2. Rear mounting plate; 201. Fixing port; 3. Fixing plate; 301. Drive shaft; 302. Connecting block; 4. Limiting assembly; 401. Fixing sleeve; 402. Limiting teeth; 403. Outer bearing; 5. Annular cover plate; 501. Sealing ring; 502. Mounting bolt. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0026] Please see Figure 1-5This utility model relates to a drum coupling with a clamping and positioning function, comprising a fixed housing 1, a rear mounting plate 2, a fixed plate 3, a limiting component 4, and an annular cover plate 5. The annular cover plate 5 is fixed to one end of the fixed housing 1, and the limiting component 4 is movably connected within the fixed housing 1. The annular cover plate 5 houses the limiting component 4 within the fixed housing 1. The limiting component 4 is jointly provided within the annular cover plate 5 and the fixed housing 1, supporting and limiting the rotation of the shaft. The rear mounting plate 2 is fixed to the end of the fixed housing 1 away from the annular cover plate 5. The rear mounting plate 2 is a fixed... The outer casing 1 provides a mounting base on the external bracket. A fixed plate 3 is fixed inside the rear mounting plate 2 along the central axis. The fixed plate 3 connects the transmission structure therein. The limiting component 4 includes a fixed sleeve 401 and limiting teeth 402. The limiting teeth 402 are fixed in a ring array on the inner wall of the fixed sleeve 401. The fixed sleeve 401 fixes the limiting teeth 402 therein. After the spline shaft of the drum is inserted into the fixed sleeve 401, it is determined that the central axis of the drum is aligned with the central axis of the fixed outer casing 1. The limiting teeth 402 mesh with the tooth groove of the spline shaft to force alignment of the central axis.

[0027] Specifically, the fixed housing 1 has an inner opening 101 through one end near the rear mounting plate 2, and the fixed sleeve 401 is movably connected in the inner opening 101. The fixed housing 1 has threaded holes 102 arranged in a ring array at one end away from the rear mounting plate 2. When the fixed housing 1 is working, the fixed sleeve 401 is movably connected through the inner opening 101.

[0028] Furthermore, a fixing port 201 is provided inside the rear mounting plate 2 along the central axis, and the fixing plate 3 is fixed inside the fixing port 201. The fixing port 201 on the rear mounting plate 2 fixes the fixing plate 3.

[0029] Furthermore, a drive shaft 301 is movably connected through the fixed disk 3 along the central axis. Both ends of the drive shaft 301 are fixed with connecting blocks 302. The two connecting blocks 302 are respectively set at both ends of the rear mounting disk 2. The drive shaft 301 on the fixed disk 3 is connected to the two connecting blocks 302. The connecting blocks 302 transmit power to the drum and the drive structure.

[0030] The operation process of this embodiment is as follows: During operation, after inserting the connecting block 302 behind the fixed plate 3 into the mounting socket on the drum, the rear mounting plate 2 is moved to align the mounting holes on the rear mounting plate 2 with the mounting structure on the bracket. Then, the mounting bolts are inserted into the rear mounting plate 2 and screwed into the bracket. The spline shaft on the drum is then inserted into the limiting tooth 402 in the fixed sleeve 401. The drum can then be rotated, driving the spline shaft to rotate. While pushing, the spline shaft is moved until it is movably connected to the connecting block 302 in the fixed sleeve 401. As the drive structure drives the rear mounting plate 2 away from the connecting block 302 of the fixed housing 1 to rotate, the drive shaft 301 drives the connecting block 302 and the spline shaft to rotate. The rotation of the fixed sleeve 401 ensures the coaxiality of the rotation between the spline shaft and the drum. Specific Implementation Example 2

[0031] Please see Figure 1 , 2 4, 6. Based on the specific embodiment 1, the limiting component 4 also includes an outer bearing 403. The outer bearing 403 is fixed on the periphery of the fixed sleeve 401. The outer bearing 403 is disposed inside the fixed housing 1 and on the annular cover plate 5. The limiting component 4 makes the fixed sleeve 401 rotatably connected to the fixed housing 1 and the annular cover plate 5 through the outer bearing 403.

[0032] Specifically, a sealing ring 501 is fixed on the inner ring of the annular cover plate 5. The sealing ring 501 is pressed and disposed around the periphery of the fixed sleeve 401. The sealing ring 501 is movably connected in a ring array with mounting bolts 502. The mounting bolts 502 pass through the annular cover plate 5 and are threaded into the threaded hole 102. The annular cover plate 5 seals the gap between the fixed sleeve 401 and the annular cover plate 5 through the sealing ring 501. After the mounting bolts 502 are inserted into the annular cover plate 5 and then screwed into the threaded hole 102 on the fixed housing 1, the fixed housing 1 and the annular cover plate 5 are installed together.

[0033] The operation process of this embodiment is as follows: During operation, when assembling the fixed housing 1, the limiting component 4 and the annular cover plate 5, the fixing sleeve 401 is inserted into the inner opening 101 on the fixed housing 1, and the outer bearing 403 is set inside the fixed housing 1. Then, the annular cover plate 5 is fitted onto the periphery of the fixing sleeve 401 and is movably connected to the annular cover plate 5 through the sealing ring 501. Then, the mounting bolt 502 is inserted into the annular cover plate 5 and screwed into the threaded hole 102 on the fixed housing 1. After tightening, the limiting component 4 and the fixed housing 1 are installed together.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drum coupling with clamping and positioning function, comprising a fixed housing (1), a rear mounting plate (2), a fixed plate (3), a limiting assembly (4), and an annular cover plate (5), characterized in that: One end of the fixed housing (1) is fixed with an annular cover plate (5). The annular cover plate (5) and the fixed housing (1) are jointly provided with a limiting component (4). The end of the fixed housing (1) away from the annular cover plate (5) is fixed with a rear mounting plate (2). The rear mounting plate (2) is fixed with a fixed plate (3) along the central axis. The limiting component (4) includes a fixed sleeve (401) and limiting teeth (402). The inner wall of the fixed sleeve (401) is fixed with limiting teeth (402) in an annular array.

2. A drum coupling with clamping and positioning function according to claim 1, characterized in that: The fixed outer shell (1) has an inner opening (101) through one end near the rear mounting plate (2), and the fixed sleeve (401) is movably connected in the inner opening (101). The fixed outer shell (1) has threaded holes (102) arranged in a ring array at one end away from the rear mounting plate (2).

3. A drum coupling with clamping and positioning function according to claim 1, characterized in that: The rear mounting plate (2) has a fixing port (201) along the central axis, and the fixing plate (3) is fixed in the fixing port (201).

4. A drum coupling with clamping and positioning function according to claim 1, characterized in that: A drive shaft (301) is movably connected through the fixed disk (3) along the central axis. Both ends of the drive shaft (301) are fixed with connecting blocks (302), and the two connecting blocks (302) are respectively set at both ends of the rear mounting disk (2).

5. A drum coupling with clamping and positioning function according to claim 1, characterized in that: The limiting component (4) also includes an outer bearing (403), which is fixed on the periphery of the fixed sleeve (401). The outer bearing (403) is disposed inside the fixed housing (1) and on the annular cover plate (5).

6. A drum coupling with clamping and positioning function according to claim 2, characterized in that: A sealing ring (501) is fixed on the inner ring of the annular cover plate (5). The sealing ring (501) is pressed and disposed on the periphery of the fixed sleeve (401). The sealing ring (501) is movably connected in an annular array with mounting bolts (502). The mounting bolts (502) pass through the annular cover plate (5) and are threaded into the threaded hole (102).

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