Coupling convenient to disassemble, assemble and fix

Abstract

The utility model relates to the technical field of couplings, and discloses a coupler convenient to disassemble, assemble and fix, an elastic buffer pad is arranged between two adjacent ends of a first shaft sleeve and a second shaft sleeve, fixing components are arranged on the outer sides of the first shaft sleeve and the second shaft sleeve, and lantern rings are sleeved on the outer sides of the first shaft sleeve and the second shaft sleeve. A limiting assembly is arranged on the outer side of the lantern ring. The first shaft sleeve and the second shaft sleeve are installed on the shaft, the two pull rods are pulled to drive the fan-shaped block to rotate, at the moment, one end of the fan-shaped block moves into the positioning groove, and in the process, the fan-shaped block pushes the lantern ring to move on the outer side of the first shaft sleeve and the outer side of the second shaft sleeve; when the shaft sleeve is installed, one side of the lantern ring abuts against the inclined face and pushes the limiting block to move in the sliding groove, at the moment, the bottom side of the limiting block abuts against the outer side of the shaft key, fixing of the first shaft sleeve and the second shaft sleeve can be completed, labor is saved, installation can be completed without tools, and the coupler installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to a coupling which is easy to assemble, disassemble and fix. Background Art

[0002] A coupling is a device that connects two shafts or a shaft and a rotating part, which rotates together during the transmission of motion and power and does not disengage under normal circumstances. It is sometimes also used as a safety device to prevent the connected parts from being subjected to excessive loads, thus playing a role in overload protection. A coupling, also known as a coupling, is a mechanical component used to firmly connect the driving shaft and the driven shaft in different mechanisms to rotate together and transmit motion and torque. It is sometimes also used to connect the shaft with other parts (such as gears, pulleys, etc.). It is often composed of two halves, which are connected by keys or tight fits, fastened to the two shaft ends, and then the two halves are connected in some way. The coupling can compensate for the offset (including axial offset, radial offset, angular offset or combined offset) between the two shafts due to inaccurate manufacturing and installation, deformation during operation or thermal expansion, as well as mitigate impact.

[0003] During the installation process of a traditional coupling, the output shaft needs to be inserted into the coupling so that the fixing key on the output shaft cooperates with the groove opened in the side wall of the coupling. Then, the output shaft and the coupling are fixed by bolts with the help of tools. However, the connection method using bolts requires the use of tools during the installation and disassembly process, which is time-consuming and labor-intensive. Therefore, a coupling that is easy to disassemble and fix is ​​proposed. Utility Model Content

[0004] The purpose of the present utility model is to provide a coupling that is easy to disassemble, assemble and fix, so as to solve the problem proposed in the above background technology that in the traditional coupling, during the installation process, the output shaft needs to be inserted into the coupling so that the fixing key on the output shaft cooperates with the groove opened in the side wall of the coupling, and then the output shaft and the coupling are fixed by bolts with the help of tools. However, the connection method using bolts requires the use of tools during both the installation and disassembly processes, which is time-consuming and labor-intensive.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a coupling that is easy to disassemble, assemble and fix, comprising a first shaft sleeve, a second shaft sleeve and an elastic buffer pad, wherein the elastic buffer pad is installed between adjacent ends of the first shaft sleeve and the second shaft sleeve, a fixing assembly is provided on the outer side of each of the first shaft sleeve and the second shaft sleeve, a collar is sleeved on the outer side of each of the first shaft sleeve and the second shaft sleeve, and a limit assembly is provided on the outer side of each of the collars;

[0006] The fixing assembly includes a limit block, an inclined surface and a connecting plate. The outer sides of the first and second shaft sleeves are provided with sliding grooves. The limit block is slidably connected to the inside of the sliding groove. The inclined surface is arranged on the top side of the limit block. The connecting plate is fixedly connected to the bottom side of one end of the sliding groove. A telescopic spring is fixedly connected between the limit block and the connecting plate.

[0007] Preferably, the outer sides of the first and second sleeves are fixedly connected to the guide column, and the collar is slidably connected to the outer side of the guide column.

[0008] Preferably, the above-mentioned limiting assembly includes two rotating shafts, fan-shaped blocks and torsion springs, two mounting grooves are opened on the outer side of the ring, the two rotating shafts are rotatably connected to the bottom of the two mounting grooves respectively, the fan-shaped block is fixedly sleeved on the outer side of the rotating shaft, the torsion spring is movably sleeved on the outer side of the rotating shaft, a pull rod is fixedly sleeved on the outer side of the rotating shaft, one end of the pull rod is connected to the limiting bolt through a thread, and two positioning grooves are opened on one side of the first sleeve and the second sleeve.

[0009] Preferably, one end of the torsion spring is fixedly connected to the bottom of the mounting slot, and the other end of the torsion spring is fixedly connected to the outer side of the rotating shaft.

[0010] Preferably, a stopper is fixedly connected to the top of the limit block.

[0011] Preferably, the fan-shaped block is located outside the positioning groove, and one end of the fan-shaped block matches the positioning groove.

[0012] Preferably, the first and second shaft sleeves are both provided with long through grooves therein, and the limit block is located at the bottom of the long through grooves.

[0013] Compared with the prior art, the above technical solution adopted by the present invention has the following technical effects:

[0014] 1. The utility model installs the first shaft sleeve and the second shaft sleeve on the shaft, pulls the two pull rods to drive the sector block to rotate, and at this time one end of the sector block moves to the inside of the positioning groove. During this process, the sector block pushes the collar to move on the outside of the first shaft sleeve and the second shaft sleeve, and one side of the collar abuts on the inclined surface and pushes the limit block to move inside the sliding groove. At this time, the bottom side of the limit block abuts on the outside of the shaft key, thereby completing the fixation of the first shaft sleeve and the second shaft sleeve. It is more labor-saving and can be installed without the aid of tools, thereby improving the efficiency of the coupling installation.

[0015] 2. The utility model pushes the pull rod clockwise, and the pull rod drives one end of the sector block to disengage from the interior of the positioning groove through the rotating shaft. Then the telescopic spring pushes the limit block to move and reset inside the sliding groove, and the bottom side of the limit block disengages from the outside of the shaft key, thereby facilitating the disassembly of the first sleeve and the second sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 This is a left-side structural schematic diagram of the present utility model;

[0018] Figure 2 It is a structural diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the top structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0021] Explanation of the accompanying drawings: 1. First sleeve; 2. Second sleeve; 3. Elastic buffer pad; 4. Sliding groove; 5. Limit block; 6. Inclined surface; 7. Connecting plate; 8. Telescopic spring; 9. Guide column; 10. Ring; 11. Mounting groove; 12. Rotating shaft; 13. Fan-shaped block; 14. Torsion spring; 15. Pull rod; 16. Limit bolt; 17. Positioning groove; 18. Stop block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0024] Example

[0025] See also Figure 1-4 The utility model provides a technical solution: a coupling that is easy to disassemble and fix, including a first shaft sleeve 1, a second shaft sleeve 2 and an elastic buffer pad 3, the elastic buffer pad 3 is installed between the adjacent ends of the first shaft sleeve 1 and the second shaft sleeve 2, and the outer sides of the first shaft sleeve 1 and the second shaft sleeve 2 are respectively provided with a fixing component, and the outer sides of the first shaft sleeve 1 and the second shaft sleeve 2 are respectively sleeved with a collar 10, and the outer side of the collar 10 is provided with a limiting component; by respectively installing the first shaft sleeve 1 and the second shaft sleeve 2 on the outer sides of the driving shaft and the driven shaft, and then installing the elastic buffer pad 3 between the first shaft sleeve 1 and the second shaft sleeve 2.

[0026] By setting a fixing assembly, the installation of the first shaft sleeve 1 and the second shaft sleeve 2 can be quickly completed; the fixing assembly includes a limit block 5, a bevel 6 and a connecting plate 7. The outer sides of the first shaft sleeve 1 and the second shaft sleeve 2 are both provided with a sliding groove 4, the limit block 5 is slidably connected to the inside of the sliding groove 4, the bevel 6 is set on the top side of the limit block 5, and the connecting plate 7 is fixedly connected to the bottom side of one end of the sliding groove 4, and a telescopic spring 8 is fixedly connected between the limit block 5 and the connecting plate 7. The outer sides of the first shaft sleeve 1 and the second shaft sleeve 2 are both fixedly connected to the guide column 9, and the collar 10 is slidably connected to the outer side of the guide column 9; one side of the collar 10 is in contact with the bevel 6, and then the collar 10 pushes the limit block 5 to move inside the sliding groove 4, and at the same time the telescopic spring 8 is compressed by the force, and at this time the bottom side of the limit block 5 is in contact with the outer side of the shaft key, and the fixing of the first shaft sleeve 1 and the second shaft sleeve 2 can be completed.

[0027] By setting a limit assembly, the rapid installation of the first sleeve 1 and the second sleeve 2 can be assisted; the limit assembly includes two rotating shafts 12, a sector block 13 and a torsion spring 14, and two mounting grooves 11 are provided on the outside of the collar 10. The two rotating shafts 12 are rotatably connected to the bottom of the two mounting grooves 11 respectively, the sector block 13 is fixedly sleeved on the outside of the rotating shaft 12, and the torsion spring 14 is movably sleeved on the outside of the rotating shaft 12. Two positioning grooves 17 are provided on one side of the first sleeve 1 and the second sleeve 2, one end of the torsion spring 14 is fixedly connected to the bottom of the mounting groove 11, and the other end of the torsion spring 14 is fixedly connected to the outside of the rotating shaft 12. The sector block 13 is located on the outside of the positioning groove 17, and one end of the sector block 13 is connected to the positioning groove 1 7 match each other, the interior of the first shaft sleeve 1 and the second shaft sleeve 2 are both provided with a long through groove, and the limit block 5 is located at the bottom of the long through groove. By installing the first shaft sleeve 1 and the second shaft sleeve 2 on the shaft, pulling the two pull rods 15 to drive the sector block 13 to rotate, at this time one end of the sector block 13 moves to the inside of the positioning groove 17, during this process, the sector block 13 pushes the collar 10 to move on the outside of the first shaft sleeve 1 and the second shaft sleeve 2, one side of the collar 10 abuts on the inclined surface 6 and pushes the limit block 5 to move inside the sliding groove 4, at this time the bottom side of the limit block 5 abuts on the outside of the shaft key, and the first shaft sleeve 1 and the second shaft sleeve 2 can be fixed, which is more labor-saving and can be installed without the help of tools, thereby improving the efficiency of the coupling installation;

[0028] By pushing the pull rod 15 clockwise, the pull rod 15 drives one end of the sector block 13 to disengage from the interior of the positioning groove 17 through the rotating shaft 12, and then the telescopic spring 8 pushes the limit block 5 to move and reset inside the sliding groove 4, and the bottom side of the limit block 5 disengages from the outside of the shaft key, thereby facilitating the disassembly of the first sleeve 1 and the second sleeve 2.

[0029] A pull rod 15 is fixedly sleeved on the outer side of the rotating shaft 12, and one end of the pull rod 15 is connected to a limiting bolt 16 through a thread. By rotating the limiting bolt 16 forward, one end of the limiting bolt 16 is pressed against the outer sides of the first sleeve 1 and the second sleeve 2, thereby fixing the position of the pull rod 15 and preventing the collar 10 from moving; when the first sleeve 1 and the second sleeve 2 are disassembled, the limiting bolt 16 is rotated in the opposite direction so that one end of the limiting bolt 16 is detached from the outer sides of the first sleeve 1 and the second sleeve 2; a stop block 18 is fixedly connected to the top of the limit block 5, and the stop block 18 can limit the position of the collar 10.

[0030] The working principle or structural principle is that the first sleeve 1 and the second sleeve 2 are respectively installed on the outside of the driving shaft and the driven shaft, and the elastic buffer pad 3 is installed between the first sleeve 1 and the second sleeve 2, and then the two pull rods 15 are pulled and rotated at the same time, so that the pull rod 15 drives the rotating shaft 12 to rotate, and the rotating shaft 12 drives the sector block 13 to rotate. At the same time, the rotating shaft 12 drives one end of the torsion spring 14 to twist. At this time, one end of the sector block 13 moves to the inside of the positioning groove 17. In this process, the sector block 13 pushes the collar 10 on the first shaft The outer sides of the sleeve 1 and the second sleeve 2 move, and one side of the collar 10 abuts against the inclined surface 6. Then the collar 10 pushes the limit block 5 to move inside the sliding groove 4. At the same time, the telescopic spring 8 is compressed by the force. At this time, the bottom side of the limit block 5 abuts against the outer side of the shaft key, and the first sleeve 1 and the second sleeve 2 are fixed. Then, by rotating the limit bolt 16 forward, one end of the limit bolt 16 abuts against the outer sides of the first sleeve 1 and the second sleeve 2, and the position of the pull rod 15 can be fixed to prevent the collar 10 from moving.

[0031] When it is necessary to disassemble the first shaft sleeve 1 and the second shaft sleeve 2, the limit bolt 16 is rotated in the opposite direction so that one end of the limit bolt 16 is disengaged from the outside of the first shaft sleeve 1 and the second shaft sleeve 2, and then the pull rod 15 is pushed clockwise. The pull rod 15 drives one end of the fan-shaped block 13 to disengage from the inside of the positioning groove 17 through the rotating shaft 12, and then the telescopic spring 8 pushes the limit block 5 to move and reset inside the sliding groove 4, so that the limit block 5 pushes the ring 10 to reset, and the bottom side of the limit block 5 is disengaged from the outside of the shaft key, thereby facilitating the disassembly of the first shaft sleeve 1 and the second shaft sleeve 2.

[0032] Those skilled in the art will appreciate that various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. A coupling that is easy to disassemble, assemble, and fix, comprising a first shaft sleeve (1), a second shaft sleeve (2), and an elastic buffer pad (3), characterized in that: The elastic buffer pad (3) is installed between the adjacent ends of the first shaft sleeve (1) and the second shaft sleeve (2); the outer sides of the first shaft sleeve (1) and the second shaft sleeve (2) are both provided with fixing components; the outer sides of the first shaft sleeve (1) and the second shaft sleeve (2) are both sleeved with collars (10); and the outer sides of the collars (10) are provided with limiting components; The fixing assembly comprises a limit block (5), an inclined surface (6) and a connecting plate (7); a sliding groove (4) is provided on the outer sides of the first shaft sleeve (1) and the second shaft sleeve (2); the limit block (5) is slidably connected to the inside of the sliding groove (4); the inclined surface (6) is arranged on the top side of the limit block (5); the connecting plate (7) is fixedly connected to the bottom side of one end of the sliding groove (4); and a telescopic spring (8) is fixedly connected between the limit block (5) and the connecting plate (7).

2. The coupling that is easy to disassemble and fix according to claim 1, characterized in that: The outer sides of the first shaft sleeve (1) and the second shaft sleeve (2) are fixedly connected to the guide column (9), and the collar (10) is slidably connected to the outer side of the guide column (9).

3. The coupling that is easy to assemble and disassemble according to claim 1, characterized in that: The limiting assembly includes two rotating shafts (12), a sector block (13) and a torsion spring (14); two mounting grooves (11) are provided on the outer side of the collar (10); the two rotating shafts (12) are rotatably connected to the bottom of the two mounting grooves (11), the sector block (13) is fixedly sleeved on the outer side of the rotating shaft (12); the torsion spring (14) is movably sleeved on the outer side of the rotating shaft (12); a pull rod (15) is fixedly sleeved on the outer side of the rotating shaft (12); one end of the pull rod (15) is threadedly connected to a limiting bolt (16); two positioning grooves (17) are provided on one side of the first sleeve (1) and the second sleeve (2).

4. The coupling that is easy to assemble and disassemble according to claim 3, characterized in that: One end of the torsion spring (14) is fixedly connected to the bottom of the mounting groove (11), and the other end of the torsion spring (14) is fixedly connected to the outside of the rotating shaft (12).

5. The coupling that is easy to assemble and disassemble according to claim 1, characterized in that: A stopper (18) is fixedly connected to the top of the limit block (5).

6. The coupling that is easy to assemble and disassemble according to claim 3, characterized in that: The sector block (13) is located outside the positioning groove (17), and one end of the sector block (13) matches the positioning groove (17).

7. The coupling that is easy to assemble and disassemble according to claim 1, characterized in that: The first shaft sleeve (1) and the second shaft sleeve (2) are both provided with a long through slot inside, and the limit block (5) is located at the bottom of the long through slot.

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