Coupling with safety protection function

Abstract

The coupler with the safety protection function comprises a driving connecting shaft and a driven connecting shaft, an elastic isolation assembly is arranged between the contact faces of the driving connecting shaft and the driven connecting shaft, and a plurality of connecting bolts are connected between the driving connecting shaft and the elastic isolation assembly and between the driving connecting shaft and the driven connecting shaft. The protective cover is located outside the connecting portion of the driving connecting shaft, the elastic isolation assembly and the driven connecting shaft and comprises a lower cover shell and an upper cover shell which are hinged to each other, and a second connecting plate is fixedly connected to the side, away from the hinged portion of the lower cover shell and the upper cover shell, of the lower cover shell. According to the scheme, the lower cover shell and the upper cover shell can cover the connecting portion of the driving connecting shaft, the elastic isolation assembly and the driven connecting shaft for protection, one side of the lower cover shell is hinged to one side of the upper cover shell, and a second connecting plate and a first connecting plate which are arranged on the other side of the lower cover shell and the other side of the upper cover shell are limited through butterfly-shaped fixing bolts; when the coupler needs to be overhauled by personnel, only the butterfly-shaped fixing bolts need to be detached.

Description

Technical Field

[0001] This application relates to the technical field of couplings, and particularly to a coupling with a safety protection function. Background Art

[0002] A coupling is a device used to connect two shafts to transmit torque and rotational motion, and is usually applied to various mechanical transmissions. Its main function is to compensate for the slight offset between the two shafts, reduce shock and vibration, thereby protecting the normal operation of the equipment. When installing and using a coupling, in order to prevent the coupling from being damaged by the impact of external objects, a protective cover with a safety protection function is usually installed outside the coupling.

[0003] In the related art, the safety of the coupling is mainly enhanced by installing a protective cover. Since the coupling needs to be regularly overhauled to ensure its safety during use, the protective cover usually consists of two housing shells joined together, and the two housing shells are fixed by a plurality of bolts. When the operator repairs the coupling, a plurality of bolts need to be removed before the two housing shells can be disassembled, and after the repair is completed, the two housing shells need to be installed by a plurality of bolts. Therefore, the disassembly and assembly process may be relatively cumbersome, which may not be convenient for personnel to carry out maintenance and repair operations, and is not conducive to actual use.

[0004] Therefore, those skilled in the art provide a coupling with a safety protection function to solve the problems raised in the above background art. Summary of the Utility Model

[0005] In order to solve the problem that the disassembly and assembly of the protective cover may be relatively cumbersome in the above background art, which may not be convenient for personnel to carry out maintenance and repair operations on the coupling, this application provides a coupling with a safety protection function.

[0006] A coupling with a safety protection function provided by this application adopts the following technical solution:

[0007] A coupling with a safety protection function includes a driving connecting shaft and a driven connecting shaft. An elastic isolation component is arranged between the contact surfaces of the driving connecting shaft and the driven connecting shaft. A plurality of connecting bolts are connected between the driving connecting shaft, the elastic isolation component and the driven connecting shaft. A protective cover is located outside the connecting part of the driving connecting shaft, the elastic isolation component and the driven connecting shaft. The protective cover includes a lower housing shell and an upper housing shell that are hinged to each other. A second connecting plate is fixedly connected to one side of the lower housing shell away from the hinged part with the upper housing shell. A first connecting plate is fixedly connected to one side of the upper housing shell away from the hinged part with the lower housing shell. A butterfly fixing bolt is rotatably arranged on the first connecting plate, and the outer wall of the bottom end of the butterfly fixing bolt is threadedly connected to the inner wall of the second connecting plate.

[0008] By adopting the above technical solution, the lower housing and the upper housing can cover and protect the connection parts of the active connecting shaft, the elastic isolation component and the driven connecting shaft. One side of the lower housing and the upper housing is hinged, and the second connecting plate and the first connecting plate arranged on the other side of the lower housing and the upper housing are limited by a butterfly fixing bolt. When personnel need to overhaul this coupling, only the butterfly fixing bolt needs to be disassembled, so that the disassembly and assembly of this application can be more convenient.

[0009] Preferably, a first gasket is arranged between the contact surfaces of the active connecting shaft and the elastic isolation component, and a second gasket is arranged between the contact surfaces of the elastic isolation component and the driven connecting shaft.

[0010] By adopting the above technical solution, the first gasket and the second gasket can respectively provide isolation between the contact surfaces of the active connecting shaft and the elastic isolation component and between the contact surfaces of the elastic isolation component and the driven connecting shaft, so as to prevent wear caused by direct friction between the contact surfaces of each component.

[0011] Preferably, a first limiting ring is fixedly connected to the outer wall of the active connecting shaft, and a second limiting ring is fixedly connected to the outer wall of the driven connecting shaft. Both the first limiting ring and the second limiting ring are located inside the protective cover.

[0012] By adopting the above technical solution, the first limiting ring and the second limiting ring can respectively limit the installation positions of the protective cover on the active connecting shaft and the driven connecting shaft.

[0013] Preferably, a plurality of card joints are uniformly and fixedly connected to the lower surface of the first connecting plate, a plurality of card slots are uniformly formed in the second connecting plate, and the bottom ends of the card joints are located inside the card slots.

[0014] By adopting the above technical solution, when the bottom ends of the card joints are inserted into the card slots, the positions between the first connecting plate and the second connecting plate can be limited.

[0015] Preferably, the elastic isolation component includes a circular plate, a plurality of placement holes are uniformly formed in the circular plate in a circumferential manner, springs are arranged inside the placement holes, a second flange is fixedly connected to the outer wall of the circular plate, and a plurality of connecting bolts pass through the second flange in a circumferential manner.

[0016] By adopting the above technical solution, the placement holes can limit the installation positions of the springs. The springs are supported between the active connecting shaft and the driven connecting shaft, and the springs can play a certain buffering role between the active connecting shaft and the driven connecting shaft.

[0017] Preferably, the lower housing has the same structure as the upper housing. The lower housing includes an arc portion hinged to one side of the upper housing. One side of the arc portion away from the hinged portion with the upper housing is fixedly connected to one side of the second connecting plate. First half-ring plates and second half-ring plates are respectively fixedly connected to both sides of the arc portion. The first half-ring plate and the second half-ring plate are respectively located outside the driving connecting shaft and the driven connecting shaft. Protective pads are fixedly connected to the inner walls of the first half-ring plate and the second half-ring plate.

[0018] By adopting the above technical solution, the first half-ring plate and the second half-ring plate can be respectively installed outside the driving connecting shaft and the driven connecting shaft, so that the lower housing can be located outside the connecting portion of the driving connecting shaft, the elastic isolation component and the driven connecting shaft. The protective pad can play a certain role in isolating and protecting between the half-ring plate and the connecting shaft.

[0019] Preferably, the driving connecting shaft and the driven connecting shaft have the same structure. The driving connecting shaft includes a connecting pipe. A first flange is fixedly connected to the outer wall of one end of the connecting pipe close to the elastic isolation component. The first flange is located on the side of the first limiting ring close to the elastic isolation component. A plurality of connecting bolts pass through the first flange in a circumferential manner. The first flange is located inside the lower housing and the upper housing.

[0020] By adopting the above technical solution, the connecting pipe can be connected to the output end of the using device. The cooperation of the first flange and the plurality of connecting bolts can limit the installation of the connecting pipe.

[0021] In summary, the present application includes the following beneficial technical effects:

[0022] 1. For the coupling with a safety protection function, the provided protective cover is composed of a lower housing, an upper housing, a first connecting plate and a second connecting plate. The connecting portion of the driving connecting shaft, the elastic isolation component and the driven connecting shaft can be covered and protected by the lower housing and the upper housing. One side of the lower housing and the upper housing is hinged. The second connecting plate and the first connecting plate provided on the other side of the lower housing and the upper housing can be limited by the butterfly fixing bolts. Therefore, when personnel need to overhaul this coupling, only the butterfly fixing bolts need to be disassembled, so that the present application can be more convenient during the disassembly and assembly process and is convenient for personnel to carry out maintenance and overhaul operations;

[0023] 2. The coupling with safety protection function is provided with a first gasket and a second gasket, which can respectively provide isolation between the contact surfaces of the driving connecting shaft and the elastic isolation component and between the elastic isolation component and the driven connecting shaft, so as to prevent wear caused by direct friction between the contact surfaces of each component. The first limiting ring and the second limiting ring can respectively limit the installation positions of the protective cover on the driving connecting shaft and the driven connecting shaft. The bottom end of the clamping joint is inserted into the clamping groove, which can limit the position between the first connecting plate and the second connecting plate, thereby improving the stability during the installation and use of the protective cover;

[0024] 3. The coupling with safety protection function is provided with a storage hole that can limit the installation position of the spring. The spring is supported between the driving connecting shaft and the driven connecting shaft, and can play a certain buffering role between the driving connecting shaft and the driven connecting shaft. The first half-ring plate and the second half-ring plate can be respectively installed outside the driving connecting shaft and the driven connecting shaft, so that the lower housing can be located outside the connection part of the driving connecting shaft, the elastic isolation component and the driven connecting shaft. The protective pad can play a certain isolation and protection role between the half-ring plate and the connecting shaft. The connecting pipe can be connected to the output end of the using device. The first flange cooperates with a plurality of connecting bolts to install and limit the connecting pipe. Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of a coupling with safety protection function in an embodiment of the present application;

[0026] Figure 2 is the sectional structural schematic diagram of a coupling with safety protection function in an embodiment of the present application;

[0027] Figure 3 is the structural schematic diagram of the protective cover of a coupling with safety protection function in an embodiment of the present application;

[0028] Figure 4 is the structural schematic diagram of the elastic isolation component of a coupling with safety protection function in an embodiment of the present application.

[0029] Description of the Reference Numerals: 1. Driving connecting shaft; 101. Connecting pipe; 102. First flange; 2. Driven connecting shaft; 3. Elastic isolation component; 301. Circular plate; 302. Storage hole; 303. Spring; 304. Second flange; 4. Connecting bolt; 5. Protective cover; 501. Lower housing; 5011. Arc part; 5012. First half-ring plate; 5013. Second half-ring plate; 5014. Protective pad; 502. Upper housing; 503. First connecting plate; 504. Second connecting plate; 6. Butterfly fixing bolt; 7. Clamping joint; 8. Clamping groove; 9. First gasket; 10. Second gasket; 11. First limiting ring; 12. Second limiting ring. Detailed Description of the Embodiment

[0030] The following further describes the present application in detail with reference to the accompanying Figures 1-4 drawings.

[0031] An embodiment of the present application discloses a coupling with a safety protection function. Referring to Figure 1 、 Figure 2 and Figure 3 , a coupling with a safety protection function includes a driving connecting shaft 1 and a driven connecting shaft 2. An elastic isolation component 3 is arranged between the contact surfaces of the driving connecting shaft 1 and the driven connecting shaft 2. A plurality of connecting bolts 4 are connected between the driving connecting shaft 1, the elastic isolation component 3 and the driven connecting shaft 2. A protective cover 5 is located outside the connecting part of the driving connecting shaft 1, the elastic isolation component 3 and the driven connecting shaft 2. The protective cover 5 includes a lower cover shell 501 and an upper cover shell 502 which are hinged to each other. A second connecting plate 504 is fixedly connected to one side of the lower cover shell 501 away from the hinged part with the upper cover shell 502. A first connecting plate 503 is fixedly connected to one side of the upper cover shell 502 away from the hinged part with the lower cover shell 501. A butterfly fixing bolt 6 is rotatably arranged on the first connecting plate 503, and the outer wall of the bottom end of the butterfly fixing bolt 6 is in threaded connection with the inner wall of the second connecting plate 504.

[0032] In this embodiment, the driving connecting shaft 1, the elastic isolation component 3 and the driven connecting shaft 2 arranged in the coupling with safety protection function can form a coupling after being fixed by a plurality of connecting bolts 4. When the coupling is in use, the elastic isolation component 3 arranged can play a certain buffering role between the driving connecting shaft 1 and the driven connecting shaft 2. Further, a protective cover 5 is installed outside the connecting parts of the driving connecting shaft 1, the elastic isolation component 3 and the driven connecting shaft 2. The protective cover 5 is composed of a lower cover shell 501, an upper cover shell 502, a first connecting plate 503 and a second connecting plate 504. When the protective cover 5 is installed and used, the connecting parts of the driving connecting shaft 1, the elastic isolation component 3 and the driven connecting shaft 2 can be covered and protected by the arranged lower cover shell 501 and upper cover shell 502. One side of the arranged lower cover shell 501 and upper cover shell 502 is hinged. The second connecting plate 504 and the first connecting plate 503 are respectively installed on the other sides of the lower cover shell 501 and the upper cover shell 502. And the second connecting plate 504 and the first connecting plate 503 are limited by a butterfly fixing bolt 6. Thus, the installation positions of the lower cover shell 501 and the upper cover shell 502 can be limited by the installed butterfly fixing bolt 6. When personnel need to overhaul this coupling, only the butterfly fixing bolt 6 needs to be disassembled. And the number of the arranged butterfly fixing bolts 6 is one. Thus, the disassembly and assembly process of this application can be more convenient, which is convenient for personnel to carry out maintenance and overhaul operations. Further, it should be noted that a certain gap is left between the connecting parts of the arranged connecting bolts 4 and the driving connecting shaft 1, the elastic isolation component 3 and the driven connecting shaft 2. And elastic gaskets are also installed at the nut and bolt parts of the connecting bolt 4. Thus, when this coupling is in use, the buffering effect between the driving connecting shaft 1, the elastic isolation component 3 and the driven connecting shaft 2 can be achieved, making this application more suitable for actual use.

[0033] In a further preferred embodiment of the present utility model, as Figure 2 shown, a first gasket 9 is arranged between the contact surfaces of the driving connecting shaft 1 and the elastic isolation component 3, and a second gasket 10 is arranged between the contact surfaces of the elastic isolation component 3 and the driven connecting shaft 2.

[0034] In this embodiment, the arranged first gasket 9 and second gasket 10 can both be made of elastic materials such as rubber, silica gel or polyurethane. Thus, when this coupling is in use, through the first gasket 9 and the second gasket 10, isolation can be provided between the contact surfaces of the driving connecting shaft 1 and the elastic isolation component 3 and between the contact surfaces of the elastic isolation component 3 and the driven connecting shaft 2 respectively, so as to prevent wear caused by direct friction between the contact surfaces of each component. Thus, the service life of the connecting components can be improved. At the same time, the gasket can also help to absorb vibration and impact during the transmission process, so as to reduce the noise and vibration during the operation of the mechanical system and improve the stability of the system.

[0035] In a further preferred embodiment of the present utility model, as Figure 2 shown, a first limiting ring 11 is fixedly connected to the outer wall of the active connecting shaft 1, and a second limiting ring 12 is fixedly connected to the outer wall of the driven connecting shaft 2. Both the first limiting ring 11 and the second limiting ring 12 are located inside the protective cover 5.

[0036] In this embodiment, when the protective cover 5 is installed and used, through the provided first limiting ring 11 and second limiting ring 12, the installation positions of the protective cover 5 on the active connecting shaft 1 and the driven connecting shaft 2 can be respectively limited, thereby ensuring the protection effectiveness of the protective cover 5 for the connecting part of the active connecting shaft 1, the elastic isolation component 3, and the driven connecting shaft 2.

[0037] In a further preferred embodiment of the present utility model, as Figure 3 shown, a plurality of clamping heads 7 are uniformly fixedly connected to the lower surface of the first connecting plate 503, and a plurality of clamping grooves 8 are uniformly formed on the second connecting plate 504. The bottom ends of the clamping heads 7 are located inside the clamping grooves 8.

[0038] In this embodiment, when installing the protective cover 5, the bottom ends of the clamping heads 7 provided on the lower surface of the first connecting plate 503 can be inserted into the clamping grooves 8 formed on the second connecting plate 504, thereby restricting the position between the first connecting plate 503 and the second connecting plate 504 and improving the stability of the protective cover 5 during installation and use.

[0039] In a further preferred embodiment of the present utility model, as Figure 2 and Figure 4 shown, the elastic isolation component 3 includes a circular plate 301. A plurality of storage holes 302 are uniformly formed in a circumferential manner on the circular plate 301. Springs 303 are arranged inside the storage holes 302. A second flange 304 is fixedly connected to the outer wall of the circular plate 301. A plurality of connecting bolts 4 pass through the second flange 304 in a circumferential manner.

[0040] In this embodiment, the installation positions of the springs 303 can be restricted through the provided storage holes 302. The springs 303 support between the active connecting shaft 1 and the driven connecting shaft 2. Thus, during use, the springs 303 can play a certain buffering role between the active connecting shaft 1 and the driven connecting shaft 2, and at the same time, the damage risk of this application can be reduced.

[0041] In a further preferred embodiment of the present utility model, as Figure 2 and Figure 3As shown, the structure of the lower housing 501 is the same as that of the upper housing 502. The lower housing 501 includes an arc-shaped portion 5011 hinged to one side of the upper housing 502. One side of the arc-shaped portion 5011 away from the hinged portion with the upper housing 502 is fixedly connected to one side of the second connecting plate 504. First half-ring plates 5012 and second half-ring plates 5013 are respectively fixedly connected to both sides of the arc-shaped portion 5011. The first half-ring plate 5012 and the second half-ring plate 5013 are respectively located outside the driving connecting shaft 1 and the driven connecting shaft 2. Protective pads 5014 are fixedly connected to the inner walls of the first half-ring plate 5012 and the second half-ring plate 5013.

[0042] In this embodiment, the provided first half-ring plate 5012 and second half-ring plate 5013 can be respectively installed outside the driving connecting shaft 1 and the driven connecting shaft 2, so that the lower housing 501 can be located outside the connecting portion of the driving connecting shaft 1, the elastic isolation assembly 3 and the driven connecting shaft 2. When the first half-ring plate 5012 and the second half-ring plate 5013 are respectively in contact with the driving connecting shaft 1 and the driven connecting shaft 2, the provided protective pads 5014 can play a certain isolation and protection role between the half-ring plates and the connecting shafts. The protective pads 5014 can be made of elastic materials such as rubber, silica gel or polyurethane.

[0043] In a further preferred embodiment of the present utility model, as Figure 2 shown, the structures of the driving connecting shaft 1 and the driven connecting shaft 2 are the same. The driving connecting shaft 1 includes a connecting pipe 101. An outer wall of one end of the connecting pipe 101 close to the elastic isolation assembly 3 is fixedly connected with a first flange 102. The first flange 102 is located on one side of the first limiting ring 11 close to the elastic isolation assembly 3. A plurality of connecting bolts 4 pass through the first flange 102 in a circumferential manner. The first flange 102 is located inside the lower housing 501 and the upper housing 502.

[0044] In this embodiment, the connecting pipe 101 can be connected to the output end of the using device. By cooperating the first flange 102 with a plurality of connecting bolts 4, the connecting pipe 101 can be installed and limited.

[0045] The implementation principle of a coupling with a safety protection function in the embodiment of the present application is:

[0046] During use, the protective cover 5 is installed outside the connection part of the driving connection shaft 1, the elastic isolation component 3 and the driven connection shaft 2. The protective cover 5 is composed of a lower housing 501, an upper housing 502, a first connecting plate 503 and a second connecting plate 504. The connection part of the driving connection shaft 1, the elastic isolation component 3 and the driven connection shaft 2 can be covered and protected by the lower housing 501 and the upper housing 502. One side of the lower housing 501 and the upper housing 502 is hinged. The second connecting plate 504 arranged on the other side of the lower housing 501 and the upper housing 502 is limited by a butterfly fixing bolt 6 with respect to the first connecting plate 503. Thus, the installation position of the lower housing 501 and the upper housing 502 can be limited by the installed butterfly fixing bolt 6. When personnel need to overhaul this coupling, only the butterfly fixing bolt 6 needs to be disassembled. Therefore, the disassembly and assembly process of this application can be more convenient, facilitating personnel to carry out maintenance and overhaul operations, and making this application more conducive to actual use.

[0047] The above are all the preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. A coupling with a safety protection function, comprising a driving connecting shaft (1) and a driven connecting shaft (2), characterized in that: An elastic isolation component (3) is provided between the contact surfaces of the active connecting shaft (1) and the driven connecting shaft (2), and a plurality of connecting bolts (4) are connected between the active connecting shaft (1), the elastic isolation component (3) and the driven connecting shaft (2); A protective cover (5), which is located outside the connecting part of the active connecting shaft (1), the elastic isolation component (3) and the driven connecting shaft (2). The protective cover (5) includes a lower cover shell (501) and an upper cover shell (502) which are hinged to each other. One side of the lower cover shell (501) far from the hinged part with the upper cover shell (502) is fixedly connected with a second connecting plate (504), and one side of the upper cover shell (502) far from the hinged part with the lower cover shell (501) is fixedly connected with a first connecting plate (503); and A butterfly fixing bolt (6) is rotatably arranged on the first connecting plate (503), and the outer wall of the bottom end of the butterfly fixing bolt (6) is in threaded connection with the inner wall of the second connecting plate (504).

2. The coupling with a safety protection function according to claim 1, wherein: A first gasket (9) is provided between the contact surface of the active connecting shaft (1) and the elastic isolation component (3), and a second gasket (10) is provided between the contact surface of the elastic isolation component (3) and the driven connecting shaft (2).

3. The coupling with a safety protection function according to claim 1, characterized in that: A first limiting ring (11) is fixedly connected to the outer wall of the active connecting shaft (1), and a second limiting ring (12) is fixedly connected to the outer wall of the driven connecting shaft (2). Both the first limiting ring (11) and the second limiting ring (12) are located inside the protective cover (5).

4. The coupling with a safety protection function according to claim 1, characterized in that: A plurality of clamping heads (7) are uniformly and fixedly connected to the lower surface of the first connecting plate (503), a plurality of clamping grooves (8) are uniformly formed in the second connecting plate (504), and the bottom ends of the clamping heads (7) are located inside the clamping grooves (8).

5. The coupling with a safety protection function according to claim 1, characterized in that: The elastic isolation component (3) includes a circular plate (301), a plurality of storage holes (302) are uniformly formed in the circular plate (301) in a circumferential manner, a spring (303) is arranged inside the storage holes (302), a second flange (304) is fixedly connected to the outer wall of the circular plate (301), and a plurality of connecting bolts (4) pass through the second flange (304) in a circumferential manner.

6. A coupling with a safety protection function according to claim 1, characterized in that: The lower cover shell (501) has the same structure as the upper cover shell (502). The lower cover shell (501) includes an arc-shaped part (5011) hinged to one side of the upper cover shell (502). One side of the arc-shaped part (5011) far from the hinged part with the upper cover shell (502) is fixedly connected to one side of the second connecting plate (504). First half-ring plates (5012) and second half-ring plates (5013) are respectively fixedly connected to both sides of the arc-shaped part (5011). The first half-ring plates (5012) and the second half-ring plates (5013) are respectively located outside the active connecting shaft (1) and the driven connecting shaft (2), and protective pads (5014) are fixedly connected to the inner walls of the first half-ring plates (5012) and the second half-ring plates (5013).

7. The coupling with a safety protection function according to claim 3, characterized in that: The structures of the active connecting shaft (1) and the driven connecting shaft (2) are the same. The active connecting shaft (1) includes a connecting pipe (101). One end outer wall of the connecting pipe (101) close to the elastic isolation component (3) is fixedly connected with a first flange (102). The first flange (102) is located on the side of the first limiting ring (11) close to the elastic isolation component (3). A plurality of connecting bolts (4) pass through the first flange (102) in a circumferential manner. The first flange (102) is located inside the lower housing (501) and the upper housing (502).

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