Coupling with safety protection function

Abstract

The utility model discloses a coupler with a safety protection function, and relates to the field of couplings. The buffer mechanism comprises a first half coupling and a second half coupling, the interiors of the first half coupling and the second half coupling are both in threaded connection with limiting mechanisms, each limiting mechanism comprises a mounting plate, a limiting ring is arranged on one side of each mounting plate, and a limiting block is arranged in each limiting ring. Firstly, the mounting plate and the limiting ring are fastened in the first half coupling and the second half coupling through threaded connection, the limiting ring and the limiting block abut against the second transmission shaft as well, the anti-attrition effect continues to be achieved, efficient torque transmission is achieved through the couplings, and the anti-attrition effect of the couplings is improved. And the abrasion degree between the coupling and the rotating shaft is reduced through the limiting ring and the limiting block which are made of rubber, the matching precision and the transmission efficiency are improved, the use convenience of the coupling is improved, and the stability and reliability of a whole transmission system are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of shaft device, concretely is a kind of safety protection function's coupling. BACKGROUND

[0002] Coupling is the key component in mechanical transmission, for connecting rotating shaft and transmitting torque, while it can compensate axial, radial and angular deviation, reduce stress and vibration, it is divided into rigid and flexible two categories, the latter can also buffer and reduce vibration, coupling is various, such as flange, sleeve, diaphragm, plum blossom etc., widely used in automobile, chemical industry, electric power and machinery manufacturing etc.

[0003] The existing coupling is designed to connect two rotating shafts to effectively transmit torque and rotary motion, however, during long-term operation, the surface of the coupling and the rotating shaft inevitably produces wear, which can cause slight size deviation between the coupling and the rotating shaft, thereby affecting the fitting accuracy and transmission efficiency, not only reduces the use convenience of the coupling, but also may pose a potential threat to the stability and reliability of the entire transmission system. SUMMARY

[0004] Therefore, the utility model aims at providing a coupling with safety protection function to solve the technical problem that the wear of the surface of the coupling and the rotating shaft can cause slight size deviation between the coupling and the rotating shaft.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a coupling with safety protection function, comprising a first half coupling and a second half coupling, the inside of the first half coupling and the second half coupling is threadedly connected with a limiting mechanism, the limiting mechanism comprises a mounting plate, one side of the mounting plate is provided with a limiting ring, the inside of the limiting ring is provided with a limiting block.

[0006] By adopting the above technical scheme, the mounting plate and the limiting ring are first fastened in the inside of the first half coupling and the second half coupling through thread connection, at the same time, the first transmission shaft is inserted into the mounting groove of the first half coupling to realize the preliminary transmission of torque, in this process, the limiting ring and the limiting block abut against the first transmission shaft, and the elastic property of the rubber material is used to absorb part of the friction force, thereby reducing the wear between the first half coupling and the first transmission shaft, then, by screwing the fastening bolt, the clamping block is inserted into the limiting slot formed by the adjacent insertion block, according to the above steps, the second half coupling and the second transmission shaft are installed, in this process, the limiting ring and the limiting block also abut against the second transmission shaft, and the wear-reducing effect is continued, thereby reducing the wear between the second half coupling and the second transmission shaft.

[0007] Further, the limiting ring is in a wedge-shaped structure in cross section and is made of rubber material, and is used for abutting and limiting the transmission shaft.

[0008] By adopting the above technical scheme, more stable limiting effect can be provided when abutting the transmission shaft, and the wedge-shaped structure means that the limiting ring can more effectively resist the torque or external force when the transmission shaft is subjected to the torque or external force, thereby maintaining the stable position of the transmission shaft.

[0009] Further, the limiting blocks are arranged in multiple, and one side is a chamfered structure and is arranged in equidistant annular arrangement.

[0010] By adopting the above technical scheme, it is ensured that the transmission shaft can be subjected to uniform and stable abutting force after being inserted, and the deflection or wear caused by single-point contact is avoided, thereby improving the matching precision between the transmission shaft and the coupling.

[0011] Further, the first half coupling and the second half coupling are internally provided with key grooves, and the other side is provided with multiple clamping blocks arranged in equidistant annular arrangement.

[0012] By adopting the above technical scheme, the torque is reliably transmitted through the cooperation of the key groove and the key block, thereby ensuring the stability and efficiency of the coupling during transmission, and meanwhile, the key groove is also convenient for quick installation and disassembly of the transmission shaft, thereby improving the convenience of maintenance.

[0013] Further, the first half coupling and the second half coupling are provided with fastening bolts, and the first transmission shaft and the second transmission shaft are respectively inserted and arranged in the mounting grooves in the interiors, and the outer sides of the first transmission shaft and the second transmission shaft are provided with key blocks, and the key blocks and the key grooves are matched.

[0014] By adopting the above technical scheme, the connection between the coupling and the transmission shaft is more firm, and by tightening the fastening bolts, it is ensured that the coupling and the transmission shaft will not move relatively or loosen, thereby ensuring the reliable transmission of the torque.

[0015] Further, the first half coupling and the second half coupling are provided with a buffering mechanism, and the buffering mechanism comprises a buffering pad, and the buffering pad is internally formed with a mounting ring.

[0016] By adopting the above technical scheme, the buffering mechanism can absorb and disperse the impact force and vibration generated during transmission, thereby reducing the damage of the coupling and the transmission shaft.

[0017] Further, the buffering pad is externally provided with multiple insertion blocks, and the interiors of adjacent insertion blocks are formed with clamping grooves, and the clamping grooves and the clamping blocks are matched.

[0018] By adopting the technical scheme, the buffer pad can be stably installed between the first half-coupling and the second half-coupling, and the insertion block can be inserted into the corresponding insertion slot of the coupling, so that the buffer pad cannot fall off or be displaced due to vibration or impact force in the transmission process.

[0019] In summary, the utility model mainly has the following beneficial effects:

[0020] The utility model discloses a buffer mechanism, first, the mounting plate and the limit ring are fastened in the inside of the first half-coupling and the second half-coupling through threaded connection respectively, at the same time, the first transmission shaft is inserted into the installation slot of the first half-coupling, and the key block is tightly clamped with the key groove, in this process, the limit ring and the limit block abut against the first transmission shaft, utilize the elastic property of rubber material and absorb part friction, reduce abrasion, then, by screwing the fastening bolt, the stable fastening connection between the first half-coupling and the first transmission shaft is formed, the reliable transmission of torque is ensured, at the same time, the clamping block is inserted into the limit slot formed by the adjacent insertion block, the stability of the coupling structure is further enhanced, according to the above steps, the second half-coupling and the second transmission shaft are installed, in this process, the limit ring and the limit block also abut against the second transmission shaft, continue to play the role of reducing abrasion, the coupling not only realizes the efficient transmission of torque, but also reduces the abrasion degree between the rotating shaft through the limit ring and the limit block of rubber material, improves the matching precision and transmission efficiency, not only improves the use convenience of the coupling, but also enhances the stability and reliability of the whole transmission system. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the explosion structure schematic view of the utility model;

[0022] Figure 2 It is the side view structure schematic view of the utility model;

[0023] Figure 3 It is the section structure schematic view of the utility model;

[0024] Figure 4 It is the utility model Figure 3 The structure schematic view of the enlarged A place in the utility model.

[0025] In the drawing: 1, first half-coupling;2, second half-coupling;3, first transmission shaft;4, second transmission shaft;5, clamping block;6, fastening bolt;7, buffer mechanism;701, buffer pad;702, insertion block;703, mounting ring;8, installation slot;9, key block;10, key groove;11, limit mechanism;111, mounting plate;112, limit ring;113, limit block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are only used for explaining the present application, and cannot be understood as a limitation on the present application.

[0027] In the description of the present application, it should be noted that the directions or position relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation on the present application, and in addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements, and for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] The embodiments will be described below according to the overall structure of the present application.

[0030] A shaft coupling with safety protection function, such as Figures 1-4As shown, including the first half coupling 1, the second half coupling 2, the first half coupling 1, the second half coupling 2 inside are all threaded connection limit mechanism 11, limit mechanism 11 includes mounting plate 111, one side of mounting plate 111 is provided with a limit ring 112, the inside of limit ring 112 is provided with a limit block 113, first mounting plate 111 and limit ring 112 are fastened in the first half coupling 1 and the second half coupling 2 inside through threaded connection respectively, at the same time, the first transmission shaft 3 is inserted into the mounting groove 8 of the first half coupling 1, and the key block 9 is tightly engaged with the key groove 10, the preliminary transmission of torque is realized, in this process, the limit ring 112 and the limit block 113 abut against the first transmission shaft 3, part of the friction is absorbed by using the elastic properties of the rubber material, the wear between the first half coupling 1 and the first transmission shaft 3 is reduced, then, by screwing the fastening bolt 6, the first half coupling 1 and the first transmission shaft 3 form a stable fastening connection, at the same time, the clamping block 5 is inserted into the limiting groove formed by the adjacent insertion block 702, according to the above steps, the second half coupling 2 and the second transmission shaft 4 are installed, in this process, the limit ring 112 and the limit block 113 also abut against the second transmission shaft 4, continue to play the role of reducing wear, reduce the wear between the second half coupling 2 and the second transmission shaft 4, the wear degree between the limit ring 112 and the limit block 113 of the rubber material and the rotating shaft is reduced, the matching precision and transmission efficiency are improved, not only the use convenience of the coupling is improved, but also the stability and reliability of the whole transmission system are enhanced.

[0031] Referring to Figure 3 , Figure 4 , the cross section of the limit ring 112 is wedge-shaped structure, and the material is rubber material, which is used for abutting against the transmission shaft, so that more stable limiting effect can be provided when abutting against the transmission shaft, the wedge-shaped structure means that the limit ring 112 can more effectively resist the force when the transmission shaft is subjected to torque or external force, and the stable position of the transmission shaft is maintained, at the same time, the limit ring 112 adopts rubber material, which has good elasticity and flexibility, so that the limit ring 112 can absorb part of the impact force when abutting against the transmission shaft, and the wear caused by friction is reduced, the shock absorbing performance of rubber also helps to reduce the vibration and noise generated in the transmission process, and improves the stability and comfort of the whole transmission system.

[0032] Referring to Figure 2 , Figure 3 , Figure 4The limiting blocks 113 are provided in plurality, and one side is a chamfer structure and arranged in equidistant annular arrangement, which ensures that the transmission shaft can be subjected to uniform and stable abutment force after insertion, avoids deflection or wear due to single-point contact, improves the matching precision between the transmission shaft and the coupling, and simultaneously, the chamfer structure on one side of the limiting block 113 plays a guiding role when the transmission shaft is inserted, reduces the resistance in the insertion process, and the chamfer design enables the transmission shaft to be more smoothly inserted into the mounting groove 8 of the coupling, thereby reducing the installation difficulty and required time.

[0033] Referring to Figure 1 The first half coupling 1 and the second half coupling 2 are internally provided with a key groove 10, and the other side is provided with a plurality of clamping blocks 5 arranged in equidistant annular arrangement, the cooperation of the key groove 10 and the key block 9 realizes reliable transmission of torque, ensures the stability and efficiency of the coupling during transmission, and simultaneously, the key groove 10 is also convenient for quick installation and disassembly of the transmission shaft, improves the convenience of maintenance, and simultaneously, the clamping blocks 5 also enhance the stability of the coupling structure, which can be inserted into the limiting groove formed by the adjacent insertion blocks 702 to form a compact connection body, which not only improves the overall strength of the coupling, but also helps to resist vibration and impact force generated during transmission, thereby prolonging the service life of the coupling.

[0034] Referring to Figure 1 The first half coupling 1 and the second half coupling 2 are provided with fastening bolts 6, and the inner sides are respectively provided with a first transmission shaft 3 and a second transmission shaft 4 inserted and combined through mounting grooves 8, and the outer sides of the first transmission shaft 3 and the second transmission shaft 4 are provided with key blocks 9, which are matched with the key grooves 10, so that the connection between the coupling and the transmission shaft is more firm, and by tightening the fastening bolts 6, it can be ensured that the coupling and the transmission shaft will not move or loosen relative to each other, thereby ensuring reliable transmission of torque, and simultaneously, the mounting grooves 8 inserted and combined with the first transmission shaft 3 and the second transmission shaft 4 are convenient for quick installation and disassembly of the transmission shaft, improve the convenience of maintenance, not only enhance the connection strength between the transmission shaft and the coupling, but also ensure efficient transmission of torque, and such a structure makes the transmission system more stable during work, reduces vibration and noise, and brings better use experience to users.

[0035] Referring to Figure 1The first half-coupling 1 and the second half-coupling 2 are provided with a buffer mechanism 7, the buffer mechanism 7 comprises a buffer pad 701, an installation ring 703 is formed in the buffer pad 701, the buffer mechanism 7 can absorb and disperse the impact force and vibration generated in the transmission process, so that the damage of the coupling and the transmission shaft is reduced, meanwhile, the structure of the buffer mechanism 7 makes the buffer pad 701 more firmly installed between the couplings and is not easy to fall off or displace, the buffer pad 701 is usually made of a material with good elasticity and damping performance, can effectively absorb the impact force and reduce the vibration, and the installation ring 703 ensures the stable installation of the buffer pad 701 between the couplings and prevents the deformation or damage of the buffer pad 701 in the transmission process.

[0036] Refer to Figure 1 The outside of the buffer pad 701 is provided with a plurality of insertion blocks 702, the inside of adjacent insertion blocks 702 is formed with a clamping groove, the clamping groove and the clamping block 5 are matched in structure, so that the buffer pad 701 can be more stably installed between the first half-coupling 1 and the second half-coupling 2, the insertion block 702 can be inserted into the corresponding insertion groove of the coupling, so that the buffer pad 701 is prevented from falling off or displacing due to vibration or impact force in the transmission process, meanwhile, the structure of the clamping groove and the clamping block 5 is matched, when the buffer pad 701 is installed in place, the clamping block 5 can be tightly clamped into the clamping groove, forming a stable connection, this clamping mode not only enhances the connection strength between the buffer pad 701 and the coupling, but also helps to disperse the stress generated in the transmission process, reducing the risk of wear and damage.

[0037] The implementation principle of the utility model is: first, the installation plate 111 and the limiting ring 112 are respectively threadedly connected with the first half-coupling 1 and the second half-coupling 2, then the first transmission shaft 3 is inserted into the installation slot 8 on the first half-coupling 1, and the key block 9 is clamped with the key groove 10, and in this connection process, the limiting ring 112 and the limiting block 113 abut against the first transmission shaft 3, then the fastening bolt 6 is screwed to tightly connect the first half-coupling 1 with the first transmission shaft 3, then the clamping block 5 is inserted into the limiting slot formed by the adjacent insertion block 702, according to the above reason, the second half-coupling 2 is installed with the second transmission shaft 4, in this installation process, the limiting ring 112 and the limiting block 113 abut against the first transmission shaft 3 and the second transmission shaft 4, and the rubber material can absorb part of the friction force, reducing the wear degree between the coupling and the rotating shaft, thereby improving the matching precision and transmission efficiency, not only improving the use convenience of the coupling, but also making the whole transmission system more stable and reliable.

[0038] The parts not involved in the utility model are the same as or can be realized by the prior art, and will not be described in detail here.

[0039] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, the person skilled in the art can make the modification, replacement and change of no creative contribution to the embodiment according to the need after reading the specification without departing from the principle and the purpose of the utility model, but as long as in the patent right claim range of the utility model, it is protected by the patent law.

Claims

1. A coupling with safety protection function, characterized in that: Including first half coupling (1), second half coupling (2), the inside of first half coupling (1), second half coupling (2) is connected with limiting mechanism (11) in thread, the limiting mechanism (11) includes mounting plate (111), the one side of mounting plate (111) is provided with limiting ring (112), the inside of limiting ring (112) is provided with limiting block (113).

2. The safety function-equipped coupling according to claim 1, characterized by: The cross section of limiting ring (112) is wedge structure, and the material is rubber material, for the abutment limiting of transmission shaft.

3. The safety function-equipped coupling according to claim 1, characterized by: The limiting block (113) is provided with a plurality, and one side is chamfered structure, and it is equidistant annular arrangement.

4. The safety function-equipped coupling according to claim 1, characterized by: The inside of first half coupling (1), second half coupling (2) is provided with keyway (10), and the other side is provided with a plurality of clamping blocks (5), the clamping block (5) is equidistant annular arrangement.

5. The safety function-equipped coupling according to claim 1, characterized by: The first half coupling (1), second half coupling (2) is provided with fastening bolt (6), and the inside is respectively inserted with first transmission shaft (3), second transmission shaft (4) through mounting groove (8), the outside of first transmission shaft (3), second transmission shaft (4) is provided with key block (9), the key block (9), keyway (10) structure is matched.

6. The safety function-equipped coupling according to claim 1, characterized by: The first half coupling (1), second half coupling (2) is provided with buffer mechanism (7), the buffer mechanism (7) includes buffer pad (701), the inside of buffer pad (701) is formed with mounting ring (703).

7. The safety function-equipped coupling according to claim 6, characterized by: The outside of buffer pad (701) is provided with a plurality of plug-in blocks (702), the inside of adjacent plug-in block (702) is formed with clamping groove, the clamping groove, clamping block (5) structure is matched.

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