Coupling with protection device

Abstract

The utility model relates to the technical field, in particular to a coupler with a protection device, which comprises a coupler main body, connecting shafts, a first protection shell and a second protection shell, the connecting shafts are connected to the coupler main body, and the two ends of the coupler main body are respectively provided with one connecting shaft; the first protective shell and the second protective shell are spliced up and down and cover the coupler body, a fixing assembly used for connecting the first protective shell and the second protective shell is arranged between the first protective shell and the second protective shell, the first protective shell is connected with a first limiting plate, and the first limiting plate is provided with a first connecting hole allowing the connecting shaft to penetrate through. The second protective shell is connected with a second limiting plate, the second limiting plate is provided with a second connecting hole for the connecting shaft to penetrate through, a flexible assembly is arranged between the first connecting hole and the second connecting hole, and the first limiting plate and the second limiting plate can be attached to the end of the coupler body. The diaphragm coupling has the effect of improving the problem of personal and equipment safety caused by falling apart and flying out of the diaphragm coupling due to shaft breakage.

Description

Technical Field

[0001] The utility model relates to the field of welding equipment technology, in particular to a coupling with a protective device. Background Art

[0002] The coupling is connected to the two shafts by bolts in an interlaced manner. The coupling compensates for the relative displacement of the two connected shafts by the elastic deformation of the diaphragm. It is a high-performance metal strong element flexible coupling that is noiseless, does not require lubrication, has a compact structure, high strength, long service life, no rotational clearance, and is not affected by temperature and oil pollution. It is suitable for shaft transmission in high-temperature, high-speed and corrosive media working environments.

[0003] The existing Chinese patent with patent publication number CN213451411U discloses a protective device for a coupling, including a main shell and a secondary shell. The main shell is a cylindrical structure with one end open and the other end closed, and a first through hole is opened on its closed end surface. A first overlap block is provided on the side wall of the main shell at the end edge away from the first through hole. The secondary shell includes an outer cylinder and an inner cylinder. The outer cylinder and the inner cylinder are also cylindrical structures with one end open and the other end closed. One end of the opening of the inner cylinder is connected to the closed end surface of the outer cylinder and is connected to the inner cavity of the outer cylinder. A second through hole is opened on the closed end surface of the inner cylinder, and a second overlap block is provided on the side wall of the outer cylinder at the end edge away from the second through hole. The second overlap block is provided with an insert block, and a metal block is fixed to the end of the insert block. A slot is provided on the first overlap block, a magnetic block is provided at the bottom of the slot, and a heat dissipation hole is provided on the closed end surface of the outer cylinder.

[0004] Regarding the above-mentioned related technologies, the inventors believe that the following problems exist: in harsh outdoor environments, the shaft may still break suddenly, causing the bolts that continue to operate to break, thereby causing the running diaphragm coupling to fall apart and fly out, causing personal and equipment safety. Utility Model Content

[0005] In order to improve the problem of personal and equipment safety caused by the diaphragm coupling falling apart and flying out due to shaft breakage, the present application provides a coupling with a protective device.

[0006] The present application provides a coupling with a protective device adopting the following technical solution:

[0007] The cam is secured to the chassis and has a first end for securing the linkage with the first and second ends of the chassis, the second end for securing the linkage with the first and second ends of the chassis.

[0008] Preferably, the fixing assembly includes a first fixing block, a second fixing block, a mounting plate, a pull rod, a slide plate, a spring and a locking block, the first fixing block is connected to the first protective shell, the first fixing block is arranged along the length direction of the first protective shell, and the first fixing block is respectively provided at the opposite ends of the first protective shell, the second fixing block is connected to the second protective shell, the second fixing block is arranged along the length direction of the second protective shell, and the second fixing block is respectively provided at the opposite ends of the second protective shell, the second fixing block is provided with a mounting groove, and the mounting groove is respectively provided with a The mounting plate is connected to the notch of the mounting groove, the pull rod passes through the mounting plate and is arranged in the mounting groove, the axis of the pull rod is arranged collinearly with the axis of the mounting groove, the slide plate is connected to the end of the pull rod located in the mounting groove, the slide plate is arranged in a disc shape, the side wall of the slide plate slides and fits the inner wall of the mounting groove, the spring is sleeved on the rod body of the pull rod located in the mounting groove, one end of the spring abuts against the slide plate, and the other end abuts against the mounting plate, the locking block is connected to the end of the pull rod that does not penetrate into the mounting groove, the locking block is arranged in an "L" shape, and a locking hole for inserting the locking block is provided on the first fixing block.

[0009] Preferably, a compression pad is attached to the first fixing block, and the compression pad is located between the first fixing block and the second fixing block.

[0010] Preferably, the locking block is provided with a chamfer, and the chamfer is located at the end of the locking block inserted into the locking hole.

[0011] Preferably, the flexible component is a rubber ring, which includes a buffer portion and a clamping portion. The buffer portion and the clamping portion are both arranged in a semicircular ring shape. The clamping portion is arranged on the periphery of the buffer portion. The clamping portion and the buffer portion are coaxially arranged and integrally formed. The first limiting plate and the second limiting plate are both provided with a clamping groove for the clamping portion to clamp.

[0012] Preferably, a ceramic lining is attached to the first protective shell and the second protective shell, and the ceramic lining is located on the inner walls of the first protective shell and the second protective shell.

[0013] In summary, this application has the following beneficial technical effects:

[0014] The utility model provides a coupling with a protective device, comprising a coupling body, a connecting shaft, a first protective shell, a second protective shell, a fixing assembly, a first limiting plate, a second limiting plate and a flexible assembly. When in use, the operator assembles the first protective shell and the second protective shell up and down on the outside of the coupling body and the connecting shaft, and limits the lateral movement of the first protective shell and the second protective shell by the first limiting plate and the second limiting plate. Then, the fixing assembly is used to connect the first protective shell and the second protective shell, and the first protective shell and the second protective shell are used to protect the coupling body inside. If the connecting shaft breaks, the radial impact force generated by the breaking of the connecting shaft is absorbed and slowed down by the flexible assembly, thereby protecting the structural stability between the first protective shell and the second protective shell, thereby achieving the effect of improving the problem of personal and equipment safety caused by the diaphragm coupling falling apart and flying out due to the breakage of the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of a coupling with a protective device in an embodiment of the present application;

[0016] Figure 2 is a schematic diagram for illustrating a ceramic liner in an embodiment of the present application;

[0017] Figure 3 It is a schematic diagram used to reflect the fixing component in the embodiment of the present application.

[0018] Explanation of the accompanying drawings: 1. Coupling body; 2. Connecting shaft; 3. First protective shell; 31. First limit plate; 4. Second protective shell; 41. Second limit plate; 5. Fixed assembly; 51. First fixed block; 52. Second fixed block; 53. Mounting plate; 54. Pull rod; 55. Slide plate; 56. Spring; 57. Locking block; 6. Flexible assembly; 7. Extrusion pad; 8. Ceramic liner. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solutions of the present invention, the solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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 work should fall within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, for example, to mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.

[0021] The embodiment of the present application discloses a coupling with a protective device. Figure 1 、 Figure 2 and Figure 3 The coupling with a protective device includes a coupling body 1, a connecting shaft 2, a first protective shell 3 and a second protective shell 4, the connecting shaft 2 is connected to the coupling body 1, and the connecting shaft 2 is respectively provided with a first protective shell 3 and a second protective shell 4 at both ends of the coupling body 1, and an upper and lower spliced ​​cover is provided on the outside of the coupling body 1, and a fixing component 5 for connecting the two is provided between the first protective shell 3 and the second protective shell 4. The first protective shell 3 is connected to the first limiting plate 31, and the first limiting plate 31 is respectively provided at both ends of the first protective shell 3, and a first connecting hole for the connecting shaft 2 to pass through is opened on the first limiting plate 31, and the second protective shell 4 is connected to the second limiting plate 41, and the second limiting plate 41 is respectively provided at both ends of the second protective shell 4, and a second connecting hole for the connecting shaft 2 to pass through is opened on the second limiting plate 41, and a flexible component 6 is provided between the first connecting hole and the second connecting hole, and the first limiting plate 31 and the second limiting plate 41 can both be attached to the end of the coupling body 1.

[0022] During use, the operator assembles the first protective shell 3 and the second protective shell 4 up and down on the outside of the coupling body 1 and the connecting shaft 2, and limits the lateral movement of the first protective shell 3 and the second protective shell 4 by the first limit plate 31 and the second limit plate 41, and then uses the fixing component 5 to connect the first protective shell 3 and the second protective shell 4, and uses the first protective shell 3 and the second protective shell 4 to protect the coupling body 1 inside. If the connecting shaft 2 breaks, the flexible component 6 absorbs and slows down the radial impact force generated when the connecting shaft 2 breaks, thereby protecting the structural stability between the first protective shell 3 and the second protective shell 4.

[0023] The fixing assembly 5 includes a first fixing block 51, a second fixing block 52, a mounting plate 53, a pull rod 54, a slide plate 55, a spring 56 and a locking block 57. The first fixing block 51 is connected to the first protective shell 3 and is arranged along the length direction of the first protective shell 3. The first fixing block 51 is provided at the opposite ends of the first protective shell 3. The second fixing block 52 is connected to the second protective shell 4 and is arranged along the length direction of the second protective shell 4. The second fixing block 52 is provided at the opposite ends of the second protective shell 4. A mounting groove is provided on the second fixing block 52. The mounting groove is provided at both ends of the second fixing block 52. One, the mounting plate 53 is connected to the notch of the mounting groove, the pull rod 54 passes through the mounting plate 53 and is arranged in the mounting groove, the axis of the pull rod 54 is arranged colinearly with the axis of the mounting groove, the slide plate 55 is connected to the end of the pull rod 54 located in the mounting groove, the slide plate 55 is arranged in a disc shape, the side wall of the slide plate 55 slides and fits the inner wall of the mounting groove, the spring 56 is sleeved on the rod body of the pull rod 54 located in the mounting groove, one end of the spring 56 abuts against the slide plate 55, and the other end abuts against the mounting plate 53, the locking block 57 is connected to the end of the pull rod 54 that does not penetrate into the mounting groove, the locking block 57 is arranged in an "L" shape, and a locking hole for inserting the locking block 57 is provided on the first fixed block 51.

[0024] A compression pad 7 is attached to the first fixing block 51 and is located between the first fixing block 51 and the second fixing block 52. When the first protective shell 3 and the second protective shell 4 are connected, the first fixing block 51 and the second fixing block 52 are pressed tightly, so that the compression pad 7 is squeezed, which is conducive to improving the tightness between the first fixing block 51 and the second fixing block 52.

[0025] The locking block 57 is provided with a chamfer, which is located at the end of the locking block 57 inserted into the locking hole. The chamfer is provided to facilitate the insertion of the locking block 57 into the locking hole.

[0026] The flexible component 6 is a rubber ring, which includes a buffer portion and a clamping portion. The buffer portion and the clamping portion are both arranged in a semicircular ring shape. The clamping portion is arranged on the periphery of the buffer portion. The clamping portion and the buffer portion are coaxially arranged and integrally formed. The first limiting plate 31 and the second limiting plate 41 are both provided with a clamping groove for the clamping portion to clamp. When the connecting shaft 2 breaks, the radial impact force generated when the connecting shaft 2 breaks is absorbed and reduced by the buffer portion, thereby reducing the impact of the radial impact force on the structural stability of the device.

[0027] A ceramic lining 8 is attached to the first protective shell 3 and the second protective shell 4. The ceramic lining 8 is located on the inner walls of the first protective shell 3 and the second protective shell 4. The ceramic lining 8 improves the impact resistance of the first protective shell 3 and the second protective shell 4, which is beneficial to improving the protective performance of the first protective shell 3 and the second protective shell 4.

[0028] The implementation principle of a coupling with a protective device in an embodiment of the present application is as follows: when installing the protective device, first pull the locking block 57 outward and rotate it to one side, then splice the first protective shell 3 and the second protective shell 4 together up and down, and sleeve it on the outside of the coupling, and the first limit plate 31 and the second limit plate 41 are fit and clamped at both ends of the coupling, then press the first fixing block 51 and the second fixing block 52, then pull and rotate the locking block 57 to align it with the locking hole, release the locking block 57, use the spring 56 to push the slide plate 55 through the pull rod 54 to drive the locking block 57 to be inserted into the locking hole for fixing.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above-described embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that improvements and modifications that do not depart from the principles of the present invention, as known to those skilled in the art, should also be considered within the scope of protection of the present invention.

Claims

1. A coupling with a protective device, characterized in that: The invention comprises a coupling body (1), a connecting shaft (2), a first protective shell (3) and a second protective shell (4), wherein the connecting shaft (2) is connected to the coupling body (1), and the connecting shaft (2) is provided at each end of the coupling body (1), and the upper and lower combined covers of the first protective shell (3) and the second protective shell (4) are provided on the outside of the coupling body (1), and a fixing component (5) for connecting the first protective shell (3) and the second protective shell (4) is provided between the first protective shell (3) and the second protective shell (4), and a first limiting plate (31) is connected to the first protective shell (3), and the first limiting plate (31) is provided on the first protective shell (3). A protective shell (3) is provided at each of its two ends. The first limiting plate (31) is provided with a first connection hole for the connecting shaft (2) to pass through. The second protective shell (4) is connected to a second limiting plate (41). The second limiting plate (41) is provided at each of its two ends. The second limiting plate (41) is provided with a second connection hole for the connecting shaft (2) to pass through. A flexible component (6) is provided between the first connection hole and the second connection hole. Both the first limiting plate (31) and the second limiting plate (41) can be fitted to the end of the coupling body (1).

2. A coupling with a protective device according to claim 1, characterized in that: The fixing assembly (5) comprises a first fixing block (51), a second fixing block (52), a mounting plate (53), a pull rod (54), a slide plate (55), a spring (56) and a locking block (57), wherein the first fixing block (51) is connected to the first protective shell (3), the first fixing block (51) is arranged along the length direction of the first protective shell (3), and the first fixing block (51) is provided at two opposite ends of the first protective shell (3), the second fixing block (52) is connected to the second protective shell (4), the second fixing block (52) is arranged along the length direction of the second protective shell (4), and the second fixing block (52) is provided at two opposite ends of the second protective shell (4), and a mounting groove is provided on the second fixing block (52), and the mounting groove is provided at two ends of the second fixing block (52). The invention provides a mounting plate (53) connected to the notch of the mounting groove, the pull rod (54) passes through the mounting plate (53) and is arranged in the mounting groove, the axis of the pull rod (54) is arranged in a colinear manner with the axis of the mounting groove, the slide plate (55) is connected to the end of the pull rod (54) located in the mounting groove, the slide plate (55) is arranged in a disc shape, the side wall of the slide plate (55) slides and fits the inner wall of the mounting groove, the spring (56) is sleeved on the rod body of the pull rod (54) located in the mounting groove, one end of the spring (56) abuts against the slide plate (55), and the other end abuts against the mounting plate (53), the locking block (57) is connected to the end of the pull rod (54) that does not penetrate into the mounting groove, the locking block (57) is arranged in an "L" shape, and the first fixing block (51) is provided with a locking hole for inserting the locking block (57).

3. A coupling with a protective device according to claim 2, characterized in that: A compression pad (7) is attached to the first fixing block (51), and the compression pad (7) is located between the first fixing block (51) and the second fixing block (52).

4. The coupling with a protective device according to claim 2, characterized in that: The locking block (57) is provided with a chamfer, and the chamfer is located at the end of the locking block (57) inserted into the locking hole.

5. The coupling with a protective device according to claim 1, characterized in that: The flexible component (6) is a rubber ring, which includes a buffer portion and a clamping portion. The buffer portion and the clamping portion are both arranged in a semicircular ring shape. The clamping portion is arranged on the periphery of the buffer portion. The clamping portion and the buffer portion are coaxially arranged and integrally formed. The first limiting plate (31) and the second limiting plate (41) are both provided with a clamping groove for the clamping portion to be clamped.

6. The coupling with a protective device according to claim 1, characterized in that: A ceramic lining (8) is attached to the first protective shell (3) and the second protective shell (4), and the ceramic lining (8) is located on the inner walls of the first protective shell (3) and the second protective shell (4).

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