Quick-change device for flexible pin couplings

By designing a quick-change device for an automatically aligned flexible pin coupling, and utilizing a motor-driven gear and rack structure and a pneumatic telescopic rod, the problem of large errors in manual installation in existing technologies is solved, achieving high-precision alignment and rapid installation, while reducing labor intensity and costs.

CN224274866UActive Publication Date: 2026-05-26CANGZHOU ANHENG COUPLING MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CANGZHOU ANHENG COUPLING MANUFACTURING CO LTD
Filing Date
2025-07-17
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The installation process of existing flexible pin couplings relies on manual operation, which makes it difficult to achieve high-precision alignment, leading to the accumulation of errors and increasing labor intensity and labor costs.

Method used

A quick-change device is designed, comprising a connecting mounting base, a fixed connecting block, an adjusting mounting base, and a mounting chuck. It utilizes a motor-driven gear and rack structure to achieve automatic alignment, and combines a pneumatic telescopic rod and fixing components to achieve precise fixing and rapid installation of the coupling.

Benefits of technology

It achieves high-precision alignment, reduces human error, lowers labor intensity and labor costs, shortens installation time, and improves installation speed and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of flexible pin couplings and discloses a quick-change device for flexible pin couplings. It includes a connecting mounting base, a fixed connecting block, and a fixing assembly. A connecting mounting plate supporting the connecting mounting base is fixedly connected to the top of the connecting mounting base. An adjusting mounting base is provided on the connecting mounting base, and a mounting chuck for connecting the coupling is provided on the adjusting mounting base. By sliding the sliding connecting base on the fixed connecting block, the connecting rack engages with the fixed connecting shaft, causing the two sliding connecting bases to move relative to each other on the fixed connecting block to fix the coupling. This eliminates the need for operators to rely on visual inspection and experience to judge the alignment of the two shafts, achieving high-precision alignment requirements, preventing errors caused by human operation, and reducing the need for operators to repeatedly move and adjust the equipment, thus reducing labor intensity and labor costs.
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Description

Technical Field

[0001] This utility model relates to the field of flexible pin coupling technology, and in particular to a quick replacement device for flexible pin couplings. Background Technology

[0002] Flexible pin couplings are a common type of mechanical transmission device used to connect two shafts and transmit torque, while allowing for certain axial, radial, and angular displacements to compensate for misalignment between shafts. Flexible pin couplings are widely used in small and medium power transmission systems due to their simple structure, easy installation, low cost, and good vibration damping performance. However, their load-bearing capacity is limited, and their transmission accuracy is relatively low, making them unsuitable for high-precision, high-load applications. When selecting a coupling, the most suitable type should be chosen based on a comprehensive consideration of actual working conditions, transmission requirements, and economic efficiency.

[0003] In existing technologies, flexible couplings require manual installation. During installation, operators rely on visual inspection and experience to judge the alignment of the two shafts, making it difficult to achieve high-precision alignment. Human operation is prone to errors, especially in large equipment or complex working conditions, where these errors can accumulate, leading to misalignment after installation. Furthermore, the repeated handling and adjustment of equipment during installation increases labor intensity and manpower costs. Therefore, a quick-change device for flexible pin couplings is needed to solve these problems. Utility Model Content

[0004] To overcome the problem that manual installation of the quick-change device for flexible pin couplings is prone to errors, increasing labor intensity and labor costs.

[0005] The technical solution of this utility model is as follows: a quick-change device for an elastic pin coupling, including a connecting mounting base, a fixed connecting block, and a fixing component. The top of the connecting mounting base is fixedly connected to a connecting mounting plate supporting the connecting mounting base. An adjusting mounting base is provided on the connecting mounting base, and an installation chuck for connecting the coupling is provided on the adjusting mounting base. The fixing component is located inside the installation chuck. The fixed connecting block is fixedly connected to the connecting mounting base. A fixed connecting shaft is fixedly connected to the connecting mounting base. A rotating gear is rotatably connected to the fixed connecting shaft. A sliding connecting seat is slidably connected to the fixed connecting block. A connecting rack is fixedly connected to the bottom of the sliding connecting seat, and the connecting rack meshes with the rotating gear.

[0006] Preferably, two fixed connecting blocks are provided, and the two fixed connecting blocks are symmetrically fixedly connected to the connecting mounting base.

[0007] Preferably, there are two connecting racks, and the two connecting racks are fixedly connected to the sliding connecting seat respectively, and the two connecting racks are evenly meshed with the rotating gear.

[0008] Preferably, the internal fixed connection of the adjusting mounting base is a first motor, the output end of the first motor is fixedly connected to a rotating connecting shaft, the rotating connecting shaft is fixedly connected to the mounting chuck, the bottom of the connecting mounting base is fixedly connected to a connecting air pump, the connecting air pump is provided with a pneumatic telescopic rod, the pneumatic telescopic rod is fixedly connected to a push plate, and the push plate is fixedly connected to the sliding connecting base.

[0009] Preferably, the connecting mounting base has a groove at the corresponding position of the push plate, and the push plate slides inside the groove.

[0010] Preferably, the fixing component includes a second motor, which is located on one side of the mounting chuck. The output end of the second motor is fixedly connected to a rotating shaft, and a connecting gear ring is fixedly connected to the rotating shaft. The connecting gear ring is rotatably connected inside the mounting chuck. A fixed connecting post is fixedly connected inside the mounting chuck, and a sliding adjusting block is slidably connected to the fixed connecting post. The sliding adjusting block is engaged with the connecting gear ring, and a sliding connecting plate is engaged with the sliding adjusting block. The sliding connecting plate is slidably connected inside the mounting chuck, and a mounting connecting seat is fixedly connected to the sliding connecting plate.

[0011] Preferably, the mounting chuck has a groove at the corresponding position of the sliding adjustment block, and the sliding adjustment block slides inside the groove.

[0012] The beneficial effects of this utility model are:

[0013] 1. Compared to the quick-change device for flexible pin couplings that require manual installation, this device uses the sliding of the sliding connecting seat on the fixed connecting block to drive the connecting rack to engage with the fixed connecting shaft. This causes the two sliding connecting seats to move relative to each other on the fixed connecting block, thus fixing the coupling. This eliminates the need for operators to rely on visual inspection and experience to judge the alignment of the two shafts, achieving high-precision alignment requirements, preventing errors caused by human operation, and eliminating the need for operators to repeatedly move and adjust the equipment, thus reducing labor intensity and labor costs.

[0014] 2. By connecting the gear ring and the sliding adjusting block, the sliding adjusting block slides on the fixed connecting column. The sliding adjusting block engages with the sliding connecting plate, causing the mounting seat to press and fix the coupling. Coupling replacement may require complex positioning and adjustment steps. However, the quick-change device based on a fixed outer diameter, through a pre-designed fixing structure, can quickly position and fix the coupling in the correct position, reducing tedious debugging steps during installation and significantly shortening installation time. This device typically has an interface that precisely matches the outer diameter of the coupling, allowing for rapid docking during replacement without additional auxiliary tools or lengthy calibration, thus improving installation speed. Attached Figure Description

[0015] Figure 1 A schematic diagram of one embodiment of the quick-change device for the present utility model flexible pin coupling;

[0016] Figure 2 This is a schematic diagram of the structure of the connecting mounting base of this utility model;

[0017] Figure 3 for Figure 1 A schematic diagram of the structure at the bottom of the connecting mounting base;

[0018] Figure 4 for Figure 1 A schematic diagram of the internal structure of the mounting chuck;

[0019] Figure 5 for Figure 1 A schematic diagram of the structure of the fixed component.

[0020] Explanation of reference numerals in the attached drawings: 1. Connecting mounting base; 2. Connecting mounting plate; 3. Adjusting mounting base; 4. Mounting chuck; 801. Fixed connecting block; 802. Fixed connecting shaft; 803. Rotating gear; 804. Sliding connecting base; 805. Connecting rack; 806. First motor; 807. Rotating connecting shaft; 808. Connecting air pump; 809. Pneumatic telescopic rod; 810. Push plate; 901. Second motor; 902. Rotating shaft; 903. Connecting gear ring; 904. Fixed connecting column; 905. Sliding adjusting block; 906. Sliding connecting plate; 907. Mounting connecting base. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 - Figure 5This utility model provides an embodiment of a quick-change device for an elastic pin coupling, including a connecting mounting base 1, a fixed connecting block 801, and a fixing component. A connecting mounting plate 2 supporting the connecting mounting base 1 is fixedly connected to the top of the connecting mounting base 1. An adjusting mounting base 3 is provided on the connecting mounting base 1, and a mounting chuck 4 for connecting the coupling is provided on the adjusting mounting base 3. The fixing component is disposed inside the mounting chuck 4. The fixed connecting block 801 is fixedly connected to the connecting mounting base 1, and a fixed connecting shaft 802 is fixedly connected to the connecting mounting base 1. The fixed connecting shaft 802 rotates... A rotating gear 803 is connected to a fixed connecting block 801, and a sliding connecting seat 804 is slidably connected to it. A connecting rack 805 is fixedly connected to the bottom of the sliding connecting seat 804. The connecting rack 805 is meshed with the rotating gear 803. When the sliding connecting seat 804 slides on the fixed connecting block 801, the connecting rack 805 pushes the rotating gear 803 on the fixed connecting shaft 802 to rotate. Under the condition that the rotating gear 803 is meshed with another connecting rack 805, the two sliding connecting seats 804 move relative to each other, thereby realizing the installation and fixation of the coupling.

[0023] Please see Figure 2 - Figure 3 In this embodiment, two fixed connecting blocks 801 are provided, and the two fixed connecting blocks 801 are symmetrically fixedly connected to the connecting mounting base 1. The two fixed connecting blocks 801 limit the sliding connecting base 804 during sliding. Two connecting racks 805 are provided, and the two connecting racks 805 are respectively fixedly connected to the sliding connecting base 804. The two connecting racks 805 are evenly meshed with the rotating gear 803. Under the condition that the two connecting racks 805 are meshed with the rotating gear 803, the two sliding connecting bases 804 are driven to move relative to each other. A first motor 806 is fixedly connected inside the adjusting mounting base 3. The output end of the first motor 806 is fixedly connected to a rotating connecting shaft 807. The movable connecting shaft 807 is fixedly connected to the mounting chuck 4. A connecting air pump 808 is fixedly connected to the bottom of the connecting mounting base 1. A pneumatic telescopic rod 809 is provided on the connecting air pump 808. A push plate 810 is fixedly connected to the pneumatic telescopic rod 809. The push plate 810 is fixedly connected to the sliding connecting base 804. The first motor 806 drives the rotating connecting shaft 807 to rotate, thereby driving the coupling to rotate and move it to the appropriate position. A groove is provided in the connecting mounting base 1 at the corresponding position of the push plate 810. The push plate 810 slides inside the groove. The groove provided in the connecting mounting base 1 at the corresponding position of the push plate 810 makes the sliding of the sliding connecting base 804 by the push plate 810 more stable.

[0024] Please see Figure 4 - Figure 5In this embodiment, the fixing component includes a second motor 901, which is disposed on one side of the mounting chuck 4. A rotating shaft 902 is fixedly connected to the output end of the second motor 901. A connecting gear ring 903 is fixedly connected to the rotating shaft 902, and the connecting gear ring 903 is rotatably connected inside the mounting chuck 4. A fixing connecting post 904 is fixedly connected inside the mounting chuck 4, and a sliding adjusting block 905 is slidably connected to the fixing connecting post 904. The sliding adjusting block 905 is engaged with the connecting gear ring 903, and a sliding connecting plate 906 is engaged on the sliding adjusting block 905. The sliding connecting plate 906 is slidably connected inside the mounting chuck 4, and a fixing... The coupling is fixedly connected to a mounting base 907. By placing the coupling inside the mounting base 907, the second motor 901 drives the rotating shaft 902 to rotate inside the mounting chuck 4. The rotating shaft 902 drives the connecting gear ring 903 to rotate. With the connecting gear ring 903 meshing with the sliding adjusting block 905, the sliding adjusting block 905 slides inside the mounting chuck 4. The mounting chuck 4 has a groove at the corresponding position of the sliding adjusting block 905. The sliding adjusting block 905 slides inside the groove. The groove at the corresponding position of the sliding adjusting block 905 inside the mounting chuck 4 makes the sliding adjusting block 905 more stable when sliding inside the groove.

[0025] During operation, when connecting and fixing the coupling, the second motor 901 drives the rotating shaft 902 to rotate inside the mounting chuck 4. The rotating shaft 902 drives the connecting gear ring 903 to rotate. With the connecting gear ring 903 engaged with the sliding adjusting block 905, the sliding adjusting block 905 slides inside the mounting chuck 4. The sliding adjusting block 905 engages with the sliding connecting plate 906, causing the mounting connecting seat 907 on the sliding connecting plate 906 to fix the coupling. The connecting air pump 808 drives the pneumatic telescopic rod 809. The push plate 810 drives the sliding connecting seat 804 to slide on the fixed connecting block 801. When the sliding connecting seat 804 slides on the fixed connecting block 801, the connecting rack 805 drives the rotating gear 803 on the fixed connecting shaft 802 to rotate. Under the condition that the rotation of the rotating gear 803 meshes with another connecting rack 805, the two sliding connecting seats 804 move relative to each other, thereby realizing the installation and fixation of the coupling. The first motor 806 drives the rotating connecting shaft 807 to rotate, thereby driving the coupling to rotate and install it to the appropriate position.

[0026] Through the above steps, the sliding connecting seat 804 slides on the fixed connecting block 801, which drives the connecting rack 805 to cooperate with the fixed connecting shaft 802, so that it drives the two sliding connecting seats 804 to move relative to each other on the fixed connecting block 801 to fix the coupling. This solves the problem that the quick replacement device of the elastic pin coupling is prone to errors due to manual installation, which increases labor intensity and labor costs.

Claims

1. Quick replacement device of elastic pin coupling, comprising a connecting mounting seat (1), characterized in that: It also includes a fixed connecting block (801) and a fixing component. The top of the connecting mounting base (1) is fixedly connected to a connecting mounting plate (2) that supports the connecting mounting base (1). An adjusting mounting base (3) is provided on the connecting mounting base (1). An adjusting mounting base (3) is provided on the adjusting mounting base (3) for connecting the coupling. The fixing component is located inside the mounting chuck (4). The fixed connecting block (801) is fixedly connected to the connecting mounting base (1). A fixed connecting shaft (802) is fixedly connected to the connecting mounting base (1). A rotating gear (803) is rotatably connected to the fixed connecting shaft (802). A sliding connecting seat (804) is slidably connected to the fixed connecting block (801). A connecting rack (805) is fixedly connected to the bottom of the sliding connecting seat (804). The connecting rack (805) is meshed with the rotating gear (803).

2. The quick replacement device of the elastic pin coupling according to claim 1, characterized in that: There are two fixed connecting blocks (801), and the two fixed connecting blocks (801) are symmetrically fixedly connected to the connecting mounting base (1).

3. The quick replacement device of the elastic pin coupling according to claim 1, characterized in that: There are two connecting racks (805), and the two connecting racks (805) are fixedly connected to the sliding connecting seat (804) respectively, and the two connecting racks (805) are evenly meshed and connected to the rotating gear (803).

4. The quick replacement device of the elastic pin coupling according to claim 1, characterized in that: The first motor (806) is fixedly connected inside the adjusting mounting base (3). The output end of the first motor (806) is fixedly connected to the rotating connecting shaft (807). The rotating connecting shaft (807) is fixedly connected to the mounting chuck (4). The bottom of the connecting mounting base (1) is fixedly connected to the connecting air pump (808). The connecting air pump (808) is equipped with a pneumatic telescopic rod (809). The pneumatic telescopic rod (809) is fixedly connected to the push plate (810). The push plate (810) is fixedly connected to the sliding connecting base (804).

5. The quick replacement device of the elastic pin coupling according to claim 4, characterized in that: The connecting mounting base (1) has a groove at the corresponding position of the push plate (810), and the push plate (810) slides inside the groove.

6. The quick replacement device of the elastic pin coupling according to claim 1, characterized in that: The fixing assembly includes a second motor (901), which is located on one side of the mounting chuck (4). The output end of the second motor (901) is fixedly connected to a rotating shaft (902). A connecting gear ring (903) is fixedly connected to the rotating shaft (902). The connecting gear ring (903) is rotatably connected inside the mounting chuck (4). A fixed connecting column (904) is fixedly connected inside the mounting chuck (4). A sliding adjusting block (905) is slidably connected to the fixed connecting column (904). The sliding adjusting block (905) is engaged with the connecting gear ring (903). A sliding connecting plate (906) is snapped onto the sliding adjusting block (905). The sliding connecting plate (906) is slidably connected inside the mounting chuck (4). A mounting connecting seat (907) is fixedly connected to the sliding connecting plate (906).

7. The quick replacement device of the elastic pin coupling according to claim 6, characterized in that: The mounting chuck (4) has a groove at the corresponding position of the sliding adjustment block (905), and the sliding adjustment block (905) slides inside the groove.