Double locating pin anti-offset coupling

Abstract

This utility model relates to the field of coupling technology and discloses a double-locating-pin anti-offset coupling. It includes a connecting component installed on the outer side of a ring sleeve for limiting the ring sleeve's position. A sliding groove is formed on the inner wall of the coupling body, and a key block is inserted into one end of the rotating shaft, allowing the shaft to slide slidably onto the inner wall of the coupling body via the key block. Through the connecting component, the L-shaped rod of the first ring sleeve engages with the arc-shaped plate of the second ring sleeve via a limiting hole. After the arc-shaped plate is embedded in the limiting hole, it prevents the cylinders of the first and second ring sleeves from loosening from the ring sleeve, thus providing a limiting function. When disassembly is required, simply press the two arc-shaped plates to remove them from the limiting holes, making installation and disassembly convenient.

Description

Technical Field

[0001] This utility model relates to the field of coupling equipment technology, specifically a double locating pin anti-offset coupling. Background Technology

[0002] A coupling is a mechanical component used to connect a drive shaft and a driven shaft, enabling both shafts to transmit torque. In high-speed power transmission, couplings serve to buffer, dampen vibrations, and improve the dynamic performance of the transmission mechanism. A coupling consists of two halves, connected to the drive shaft and the driven shaft respectively. Many power machines are generally connected to the working machine using couplings.

[0003] Application number CN201420364544.1 discloses an automatic centering anti-misalignment coupling, comprising a connecting shaft one, a centering sleeve, a headless hexagonal set screw, and a connecting shaft two. The outer end face of the connecting shaft one has a threaded hole. The centering sleeve is fastened to the connecting shaft one with the hexagonal set screw, and the mounting end has a protruding block. The mounting end of the connecting shaft two has a groove, and the connecting shaft two is inserted into the centering sleeve, with the centering sleeve and the connecting shaft two forming a convex-concave fit connection. This utility model has a simple and practical structure, reasonable design, low manufacturing complexity, convenient use, and direct protective effect. The transmission connection is direct and effective. Installation and adjustment are simple and convenient, and assembly conformity is good. However, this setting uses a hexagonal set screw to fix the centering sleeve, which not only requires a special tool, an hexagonal wrench, for disassembly and assembly, but also, in confined spaces, the wrench's operating angle is limited, often requiring repeated adjustments to the screw's position. Long-term stress on the screw can easily lead to stripping or seizing. Forced disassembly may damage the threads of the sleeve or shaft, increasing maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide a double locating pin anti-offset coupling to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a double positioning pin anti-offset coupling, including a coupling body and a rotating shaft. One end of each of the two coupling bodies is provided with a plurality of first limiting grooves, and a ring sleeve is sleeved on the outside of the plurality of first limiting grooves.

[0007] A connecting component for limiting the position of the ring is installed on the outer side of the ring.

[0008] A sliding groove is provided on the inner wall of the coupling body, and a key block is inserted into one end of the rotating shaft. The rotating shaft is slidably connected to the inner wall of the coupling body through the key block.

[0009] The coupling body has a socket, which extends into the interior of the shaft via a key block.

[0010] As a preferred technical solution, the connecting assembly includes a first ring, a cylinder, and a second ring, with a plurality of cylinders respectively fixedly connected to the outer walls of the cylinder and the second ring.

[0011] As a preferred technical solution, a plurality of second limiting grooves are provided on the inner wall of the ring sleeve, and the first ring body and the second ring body are respectively inserted into the inner wall of the second limiting groove through a cylinder, wherein the cylinder is located between the second limiting groove and the first limiting groove.

[0012] As a preferred technical solution, an L-shaped rod is fixedly connected to the outer wall of the first ring body, and a limit hole is formed on the outer wall of the L-shaped rod. Two aluminum plates are fixedly connected to the outer wall of the second ring body, and an arc-shaped plate is fixedly connected to the outer wall of the aluminum plates.

[0013] As a preferred technical solution, a gap is left between the two aluminum plates.

[0014] As a preferred technical solution, the aluminum plate is inserted into the limiting hole via an arc-shaped plate.

[0015] This utility model has the following beneficial effects:

[0016] This invention, through the design of the connecting components, allows the L-shaped rod of the first ring to engage with the arc-shaped plate of the second ring via a limiting hole. The arc-shaped plate, once embedded in the limiting hole, prevents the cylinders of the first and second rings from detaching from the ring sleeve, thus providing a limiting function. When disassembly is required, simply press the two arc-shaped plates out of the limiting hole; installation and disassembly are relatively convenient. Furthermore, the sealing sleeve, threaded onto the outer wall of the coupling, seals the gap between the coupling and the shaft, preventing impurities from entering and damaging the inner wall of the coupling and the outer wall of the shaft, thereby extending the service life of both the coupling and the shaft. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the first limiting groove structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the ring structure of this utility model;

[0021] Figure 4 This utility model Figure 3 Schematic diagram of the structure at point A;

[0022] Figure 5 This is a schematic diagram of the sealing sleeve structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the internal structure of this utility model;

[0024] Figure 7 This utility model Figure 6 A schematic diagram of the structure at point B.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] In the diagram: 1. Coupling; 101. Insertion hole; 102. First limiting groove; 103. Sliding groove; 2. Connecting assembly; 201. First ring; 202. L-shaped rod; 203. Limiting hole; 204. Cylinder; 205. Second ring; 206. Aluminum plate; 207. Arc plate; 3. Rotating shaft; 4. Sealing sleeve; 5. Ring sleeve; 501. Second limiting groove; 6. Key block. Detailed Implementation

[0027] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 - Figure 7 As shown, this utility model is a double positioning pin anti-offset coupling, including a coupling body 1 and a rotating shaft 3. One end of each of the two coupling bodies 1 is provided with a plurality of first limiting grooves 102, and a ring sleeve 5 is sleeved on the outside of the plurality of first limiting grooves 102.

[0029] A connecting component 2 for limiting the position of the ring 5 is installed on the outside of the ring 5;

[0030] A sliding groove 103 is provided on the inner wall of the coupling body 1, and a key block 6 is inserted into one end of the rotating shaft 3. The rotating shaft 3 is slidably connected to the inner wall of the coupling body 1 through the key block 6.

[0031] The coupling body 1 is provided with a socket 101, which extends into the interior of the rotating shaft 3 via a key block 6;

[0032] The sealing sleeve 4 is threaded onto the outer wall of the coupling 1, serving a sealing function.

[0033] The connecting component 2 includes a first ring 201, a cylinder 204, and a second ring 205. Several cylinders 204 are fixedly connected to the outer walls of the cylinders 204 and the second ring 205, which are the main structural components of the connecting component 2.

[0034] The inner wall of the ring 5 is provided with a number of second limiting grooves 501. The first ring body 201 and the second ring body 205 are respectively inserted into the inner wall of the second limiting groove 501 through the cylinder 204. The cylinder 204 is located between the second limiting groove 501 and the first limiting groove 102.

[0035] The purpose of this arrangement is to allow the cylinders 204 of the first ring 201 and the second ring 205 to be engaged between the second limiting groove 501 and the first limiting groove 102, thereby driving the two coupling bodies 1 to rotate synchronously.

[0036] An L-shaped rod 202 is fixedly connected to the outer wall of the first ring body 201. A limit hole 203 is opened on the outer wall of the L-shaped rod 202. Two aluminum plates 206 are fixedly connected to the outer wall of the second ring body 205. An arc-shaped plate 207 is fixedly connected to the outer wall of the aluminum plate 206.

[0037] The purpose of this design is that the aluminum plate 206 is engaged with the limiting hole 203 by the arc plate 207 for limiting and matching.

[0038] A gap is left between the two aluminum plates 206. The purpose of this arrangement is to provide space for compression of the two aluminum plates 206.

[0039] The aluminum plate 206 is inserted into the limiting hole 203 through the arc plate 207, and the arc plate 207 cooperates with the limiting hole 203 to limit the position.

[0040] The specific working process of this utility model:

[0041] The coupling 1 is fitted onto the outer wall of the rotating shaft 3. The coupling 1 has an insertion hole 101, which extends into the interior of the rotating shaft 3 via a key block 6. The rotating shaft 3 drives the coupling 1 to rotate. First, the key block 6 is inserted into one end of the rotating shaft 3. The rotating shaft 3 is slidably connected to the inner wall of the coupling 1 via the key block 6. The key block 6 slides along the sliding groove 103 of the coupling 1. A positioning pin is inserted into the insertion hole 101 to limit the key block 6, the rotating shaft 3, and the coupling 1 to achieve a rigid connection, ensuring stable rotation without deviation. Then, the two couplings 1 and the two rotating shafts 3 are brought close together. The ring sleeve 5, in conjunction with the cylinder 204 of the first ring body 201 and the second ring body 205, is locked between the second limiting groove 501 and the first limiting groove 102 for connecting and transmitting the two couplings 1 and the two rotating shafts 3. This process only requires fitting and insertion, making installation convenient and limiting the radial and angular displacement between the coupling 1 and the ring sleeve 5.

[0042] Before installation, the first ring 201 and the second ring 205 need to be set on the outside of the two couplings 1 in advance to facilitate subsequent installation of the limit. Before the two couplings 1 are connected, the ring sleeve 5 is set on the outside of the two couplings 1 to facilitate subsequent installation of the limit. The L-shaped rod 202 of the first ring 201 is inserted and engaged with the arc plate 207 of the second ring 205 through the limit hole 203. After the arc plate 207 is embedded in the limit hole 203, it prevents the cylinder 204 of the first ring 201 and the second ring 205 from coming loose from the ring sleeve 5, thus playing a limiting role. When disassembly is required, simply press the two arc plates 207 to remove them from the limit hole 203. Installation and disassembly are relatively convenient.

[0043] The sealing sleeve 4 is threaded onto the outer wall of the coupling body 1 and is used to seal the gap between the coupling body 1 and the rotating shaft 3. This prevents impurities from entering the gap and damaging the inner wall of the coupling body 1 and the outer wall of the rotating shaft 3, thereby improving the service life of the coupling body 1 and the rotating shaft 3.

[0044] In summary, this utility model, through the design of the connecting components, allows the L-shaped rod of the first ring to engage with the arc-shaped plate of the second ring via a limiting hole. The arc-shaped plate, once embedded in the limiting hole, prevents the cylinders of the first and second rings from loosening from the ring sleeve, thus providing a limiting function. When disassembly is required, simply press the two arc-shaped plates out of the limiting holes; installation and disassembly are relatively convenient. Furthermore, the sealing sleeve, threaded onto the outer wall of the coupling, seals the gap between the coupling and the shaft, preventing impurities from entering and damaging the inner wall of the coupling and the outer wall of the shaft, thereby improving the service life of both the coupling and the shaft.

[0045] The preferred embodiments of the present invention disclosed above are merely for illustrating the present invention. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double dowel anti- misalignment coupling comprising a coupling body (1) and a rotating shaft (3), characterized in that: One end of each of the two coupling bodies (1) is provided with a plurality of first limiting grooves (102), and a ring sleeve (5) is sleeved on the outside of the plurality of first limiting grooves (102); A connecting component (2) for limiting the ring (5) is installed on the outside of the ring (5); A sliding groove (103) is provided on the inner wall of the coupling (1), and a key block (6) is inserted into one end of the rotating shaft (3). The rotating shaft (3) is slidably connected to the inner wall of the coupling (1) through the key block (6). The coupling (1) has a socket (101) which extends into the interior of the shaft (3) via a key block (6); The sealing sleeve (4) is threaded onto the outer wall of the coupling (1); The inner wall of the ring (5) is provided with a plurality of second limiting grooves (501). The first ring (201) and the second ring (205) are respectively inserted into the inner wall of the second limiting groove (501) through a cylinder (204). The cylinder (204) is located between the second limiting groove (501) and the first limiting groove (102).

2. The double locating pin anti-offset coupling according to claim 1, characterized in that: The connecting assembly (2) includes a first ring (201), a cylinder (204), and a second ring (205), with a plurality of cylinders (204) respectively fixedly connected to the outer walls of the cylinder (204) and the second ring (205).

3. The double locating pin anti-offset coupling according to claim 1, characterized in that: An L-shaped rod (202) is fixedly connected to the outer wall of the first ring body (201), and a limiting hole (203) is opened on the outer wall of the L-shaped rod (202). Two aluminum plates (206) are fixedly connected to the outer wall of the second ring body (205), and an arc plate (207) is fixedly connected to the outer wall of the aluminum plate (206).

4. The double locating pin anti-offset coupling according to claim 3, characterized in that: A gap is left between the two aluminum plates (206).

5. A double locating pin anti-offset coupling according to claim 3, characterized in that: The aluminum plate (206) is inserted into the limiting hole (203) through the arc plate (207).

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