Shaft collar and coupling

Abstract

The shaft ring is applied to a coupler, the coupler is configured to be connected with an insertion piece, the insertion piece comprises a main body structure and an insertion structure at least partially inserted into the coupler, the shaft ring comprises an inner hole and a base surrounding the inner hole, the base comprises a base and a step part, and the outer diameter of the step part is smaller than that of the base. The insertion structure is inserted into the inner hole from one side of the step part, the base comprises an end face facing one side of the step part, the main body structure comprises a bottom face facing the end face, and the step part is configured to form a gap between the bottom face and the end face. When the shaft ring and the insertion piece are assembled, due to the existence of the step part, a fixed gap is formed between the bottom surface of the insertion piece and the end surface of the shaft ring, so that when a bolt on the shaft ring is tightened or loosened, the gap formed by the step part can provide a larger operation space, the difficulty of mounting and dismounting is reduced, and the production efficiency is improved. And the installation and maintenance efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical field especially relates to a shaft ring and shaft coupling. BACKGROUND

[0002] With the development of science, the progress of technology, the application of machinery is more and more extensive, in the transport or power machinery, coupling is indispensable.

[0003] Diaphragm coupling is widely favored because of its compact structure, high strength and long service life, wherein the shaft ring in the coupling is connected with the coupling through bolts, and in the process of assembling the output shaft of the motor and the coupling, the locking and loosening of the shaft ring need to be realized by tightening or loosening the bolts, and at this time, the space between the shaft ring and the motor is relatively narrow, which leads to smaller operation space, seriously affecting the installation or disassembly efficiency.In addition, in order to maintain rigidity and strength, the shaft ring used in diaphragm coupling is made of metal material, and the weight of the shaft ring is often heavy, which leads to large inertia of diaphragm coupling when the machine runs, and further affects the load and transmission efficiency of the machine.

[0004] Therefore, it is necessary to provide a shaft ring and a coupling to solve the above problems. SUMMARY

[0005] The utility model discloses a kind of shaft rings, which can provide better operating space and lighter quality.

[0006] To achieve the above object, the utility model provides a kind of shaft ring, applied to coupling, the coupling is configured to be connected with insert piece, the insert piece includes main body structure and at least part of insert structure inserted in the coupling, the shaft ring includes inner hole and base around the outer of the inner hole, the base includes base and step portion, the outer diameter of the step portion is less than the outer diameter of the base, the insert structure is inserted in the inner hole by one side of the step portion, the base includes the end face towards the step portion side, the main body structure includes the bottom surface towards the end face, the step portion is configured to form gap between the bottom surface and the end face.

[0007] As a further improvement of the utility model, the diameter of the inner hole gradually increases along the insertion direction of the insert mechanism.

[0008] As a further improvement of the utility model, the step portion includes step surface and step wall, the base includes the end face towards the step portion side, the step surface is parallel to the end face, and the two ends of the step wall are connected with the step surface and the end face through chamfer respectively.

[0009] As a further improvement of the utility model, the step wall is perpendicular to the end face.

[0010] As a further improvement of this utility model, the base has a chamfer at the edge opposite to the inner hole.

[0011] Another objective of this invention is to provide a coupling including the aforementioned collar.

[0012] To achieve the above objectives, this utility model provides a coupling including the aforementioned collar.

[0013] As a further improvement of this utility model, the coupling includes a middle part and transmission mechanisms located at both ends of the middle part, and the collar is located on the side of the transmission mechanism opposite to the middle part.

[0014] Compared with the prior art, the shaft collar of this utility model has a base including a stepped portion and a base. The outer diameter of the stepped portion is smaller than the outer diameter of the base. When assembling the shaft collar with the output shaft of the motor, the presence of the stepped portion creates a fixed gap between the motor and the base of the shaft collar. When tightening or loosening the bolts on the shaft collar, the gap created by the stepped portion provides a larger operating space, reducing the difficulty of installation and disassembly, and improving the efficiency of installation and maintenance. Furthermore, the design of the stepped portion can reduce the weight of the shaft collar while maintaining its rigidity and strength, thereby reducing the inertia of the shaft collar and coupling during operation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a collar according to an embodiment of the present invention.

[0016] Figure 2 yes Figure 1 An enlarged view of the circled portion of the collar shown.

[0017] Figure 3 yes Figure 1 The cross-sectional view of the collar shown.

[0018] Figure 4 This is a three-dimensional structural diagram of a coupling according to an embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the assembly of the coupling and the motor according to an embodiment of the present invention.

[0020] Figure 6 This is a three-dimensional structural diagram of a collar according to another embodiment of the present invention.

[0021] Figure 7 yes Figure 6 The cross-sectional view of the collar is shown.

[0022] Figure 8 yes Figure 6 The cross-sectional view of the collar after the fasteners have been removed is shown.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] collar, 110 - inner hole, 120 - base, 130 - step portion, 131 - step surface, 132 - step wall, 140 - base, 141 - end surface, 142 - screw hole, 1421 - threaded area, 1422 - smooth area, 150 - chamfer, 143 - via hole, 144 - lifting eye, 160 - fastener, 161 - first end, 162 - second end;

[0025] 200 - coupling, 210 - middle portion, 220 - transmission mechanism, 221 - shaft sleeve;

[0026] 300 - insert, 310 - insertion structure, 320 - main body structure, 321 - bottom surface. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described in detail below in combination with the drawings and specific embodiments.

[0028] Here, it needs to be explained that, in order to avoid the utility model from being obscured by unnecessary details, only the structures and / or processing steps closely related to the scheme of the utility model are shown in the drawings, and other details not closely related to the utility model are omitted.

[0029] In addition, it also needs to be explained that the term "comprises", "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0030] The embodiment relates to a collar 100 and a coupling 200 containing the collar 100, the coupling 200 is configured to be connected with an insert 300, the insert 300 includes a main body structure 320 and an insertion structure 310, the insertion structure 310 is at least partially inserted into the coupling 200, the collar 100 is provided with a step portion 130, so that an installation gap is formed between the base 140 in the collar 100 and the insert 300, compared with a traditional collar 100, a larger operation space is provided.

[0031] Please refer to Figure 4As shown in the figure, the three-dimensional structure diagram of the coupling 200 is provided for a specific embodiment of the utility model, the coupling 200 includes the intermediate portion 210 and the transmission mechanism 220 located at both ends of the intermediate portion 210, the shaft ring 100 is located at the side of the transmission mechanism 220 away from the intermediate portion 210, wherein the transmission mechanism 220 at one end is connected with the insertion structure 310 of the insert piece 300, the transmission mechanism 220 at the other end is connected with the driven shaft, through the coupling 200, the driven shaft is realized synchronous rotation with the insertion structure 310.

[0032] The insert piece 300 includes the insertion structure 310 and the main body structure 320, when the insert piece 300 is installed or disassembled with the coupling 200, the insertion structure 310 is at least partially inserted into the coupling 200, by tightening or loosening the bolt on the end face 141 of the shaft ring 100, the fixed connection or loosening of the insertion structure 310 and the coupling 200 is realized.In this process, the space between the insert piece 300 and the shaft ring 100 is often extremely small, especially when the insert piece 300 and the coupling 200 are both installed in the main shaft box, because of the limitation of the space of the main shaft box, the insert piece 300 and the shaft ring 100 are closely fitted, resulting in small space for construction operation, and low efficiency when assembling or disassembling.

[0033] In addition, in order to reduce the weight of the coupling 200, the intermediate portion 210 of the coupling 200 often adopts light material, and the transmission mechanism 220 at both ends often still adopts metal, such as stainless steel or aluminum alloy, in order to meet the needs of rigidity and structural strength, resulting in that the weight of the coupling 200 is still large, the inertia of the coupling 200 is also large, resulting in large mechanical load, and the problem of slow response speed exists.

[0034] Please refer to Figures 1-3 As shown in the figure, the three-dimensional structure diagram of the shaft ring 100 is provided for a specific embodiment of the utility model, the shaft ring 100 is mainly applied to the coupling 200, the coupling 200 is connected with the insertion structure 310 of the insert piece 300, the shaft ring 100 includes the inner hole 110 and the base 120 around the inner hole 110, wherein the base 120 includes the base 140 and the step part 130, the outer diameter of the step part 130 is smaller than the outer diameter of the base 140, the base 140 includes the end face 141 towards the step part 130 side, the main body structure 320 of the insert piece 300 includes the bottom surface 321 towards the end face 141, the insert piece 300 includes the main body structure 320 and the insertion structure 310 at least partially inserted into the coupling 200, the insertion structure 310 is inserted into the inner hole 110 from one side of the step part 130, and the step part 130 is configured to form a gap between the bottom surface 321 and the end face 141.

[0035] As Figure 5As shown, after the insertion structure 310 of the insert 300 is inserted into the inner hole 110 of the shaft ring 100, a fixed gap is formed between the bottom surface 321 and the end surface 141 of the base 140 of the shaft ring 100 through the step portion 130, and the size of the gap is the thickness of the step portion 130 in the axial direction of the inner hole 110. When the bolt on the shaft ring 100 is tightened or loosened, the gap formed by the step portion 130 can provide a larger operation space, reduce the difficulty of installation and disassembly, and improve the efficiency of installation and maintenance.

[0036] At the same time, through the design of the step portion 130, the mass of the shaft ring 100 is obviously reduced, and the inertia of the shaft coupling 200 during operation is reduced, and the influence on mechanical transmission is reduced under the premise of maintaining the rigidity of the shaft ring 100.

[0037] In this embodiment, the diameter of the inner hole 110 gradually increases along the insertion direction of the insertion structure 310. The tapered design of the inner hole 110 can also disperse the contact stress between the shaft ring 100 and the insertion structure 310 to a certain extent, and reduce the wear caused by stress concentration. At the same time, close contact can also help prevent additional wear caused by loosening or vibration, thereby prolonging the service life of the shaft coupling 200 and the entire transmission system.

[0038] In other embodiments, the diameter of the inner hole 110 can also remain constant, and the utility model does not limit this.

[0039] In this embodiment, the step portion 130 includes a step surface 131 and a step wall 132, the step surface 131 is parallel to the end surface 141, and the two ends of the step wall 132 are connected to the step surface 131 and the end surface 141 through chamfers 150. The parallel design of the step surface 131 and the end surface 141 makes the step portion 130 more evenly disperse stress when bearing vertical and horizontal loads, thereby enhancing the stability of the overall structure of the shaft ring 100, and the step wall 132 serves as a support structure, and its two ends are connected to the step surface 131 and the base 140 through chamfers 150. This connection method can more effectively transfer and disperse loads, reduce stress concentration, and improve the structural load capacity and safety of the shaft ring 100.

[0040] Please refer to Figure 3 As shown, in this embodiment, the step wall 132 is perpendicular to the end surface 141 and the step surface 131, and the perpendicular arrangement can ensure the stability of the structure of the step portion 130, so that the step portion 130 can withstand greater stress without being easily deformed or damaged.

[0041] In this embodiment, along the axial direction of the inner hole 110, the thickness of the stepped portion 130 is the first thickness, and the thickness of the shaft ring 100 is the second thickness. The stepped portion 130 serves as a key support part of the shaft ring 100, and a reasonable proportion of its thickness to the overall thickness helps to disperse and resist external stress, preventing the shaft ring 100 from deforming or being damaged during use. Under the premise of ensuring structural stability, by adjusting the thickness ratio of the stepped portion 130 to the overall shaft ring 100, the weight of the shaft ring 100 can be optimized to a certain extent, which is particularly important for application scenarios that need to control weight (such as aerospace, automobile manufacturing, etc.).

[0042] In this embodiment, a chamfer 150 is provided at the edge of the base 140 away from the inner hole 110, which can smoothly transition the right angle of the edge of the base 140 and reduce the possibility of cracking or damage due to stress concentration at the right angle, which is of great significance to improve the overall durability of the base 120 and prolong the service life. At the same time, the chamfer 150 provided at the edge of the base 140 can prevent scratches or damage caused by sharp corners when contacted by personnel or objects, improving the safety during installation or disassembly.

[0043] In this embodiment, the shaft ring 100 is assembled with the insertion structure 310 of the insert 300, and in other embodiments, it can also be assembled with other mechanical components, which can all generate a gap between the base 140 and other mechanical components, and the utility model does not limit this.

[0044] Please continue to refer to Figures 6-8 As shown in the figure, the shaft ring 100 of another embodiment of the utility model, the transmission mechanism 220 of the coupling 200 further includes a shaft sleeve 221, and when the coupling 200 is assembled, the insertion structure 310 of the insert 300 is inserted into the sleeve of the shaft sleeve 221, and the shaft ring 100 is sleeved outside the sleeve of the shaft sleeve 221. During disassembly of the shaft sleeve 221 and the shaft ring 100, the fastener 160 in the threaded hole 142 needs to be loosened, and if not careful, the fastener 160 will fly out of the shaft ring 100, causing many inconveniences to the disassembly process and increasing the cost of daily maintenance.

[0045] In the embodiment, the shaft ring 100 is provided with a screw hole 142 on the base 140, the screw hole 142 is provided with a fastener 160, the shaft ring comprises an inner hole 110 and a base 120 surrounding the outer side of the inner hole 110, the base 120 is provided with a screw hole 142, the screw hole 142 is provided with a fastener 160, the fastener 160 comprises a first end 161 and a second end 162, the first end 161 of the fastener 160 protrudes out of the screw hole 142, when the shaft ring 100 is assembled with the shaft sleeve 221, the first end 161 of the fastener 160 abuts against the shaft sleeve 221, the screw hole 142 comprises a threaded area 1421 and a smooth area 1422, the threaded area 1421 is close to the first end 161, the smooth area 1422 is away from the first end 161 relative to the threaded area 1421, and the fastener 160 is limited to move in the threaded area 1421.

[0046] The shaft ring 100 avoids inserting the fastener 160 into the screw hole 142 during installation by embedding the fastener 160 in the screw hole 142, thereby reducing the number of parts, and by arranging the threaded area 1421 and the non-threaded area 1421 in the screw hole 142, the fastener 160 can only move in the threaded area 1421, and when the shaft ring 100 rotates at high speed, the fastener 160 will not fly out of the screw hole 142 through the smooth area 1422 due to the influence of centrifugal force, thereby ensuring the safety of the shaft coupling 200 during operation, and keeping the shaft sleeve 221 always fixed relative to the insertion structure 310 of the insertion piece 300, and preventing displacement.

[0047] In the embodiment, the base 140 is further provided with a through hole 143, the through hole 143 is configured to pass through a cable, and the through hole 143 and the threaded hole are arranged alternately along the outer periphery of the inner hole 110, when the shaft coupling 200 and the insertion piece 300 are assembled, a large number of cables need to be connected, the through hole 143 is arranged to facilitate the convergence and passage of the cables of each structure, thereby avoiding entanglement during subsequent operation and reducing the probability of failure of the shaft coupling 200.

[0048] In the embodiment, the base is further provided with a lifting eye hole 144, the lifting eye hole 144 is configured to be used when the shaft coupling 200 is lifted, and the lifting eye hole 144, the through hole 143 and the threaded hole are arranged alternately along the outer periphery of the inner hole 110, in some scenarios, the volume and mass of the insertion piece 300 and the shaft coupling 200 are large, and lifting is required during installation, the shaft ring 100 of the utility model is further provided with the lifting eye hole 144 on the base 140, thereby facilitating lifting of the shaft coupling 200 and the insertion piece 300 during installation.

[0049] In the embodiment, the fastener 160 is a top screw, which is a fastener 160, and is convenient to install and disassemble, has various structural forms, good universality and interchangeability, can better fix the shaft ring 100 and the shaft sleeve 221, so that the shaft sleeve 221 and the shaft ring 100 cannot be displaced relative to the insertion structure 310 of the insertion piece 300. In other embodiments, the fastener 160 can also be other types of parts, and the utility model does not make any limitation.

[0050] In the embodiment, the first end 161 of the fastener 160 is located on the side of the base 140 away from the stepped portion 130, and when the shaft coupling 200 and the insertion structure 300 are assembled, the stepped portion 130 of the shaft ring 100 forms a gap between the bottom surface 321 of the insertion piece 300 and the end surface 141 of the shaft ring 100, the side of the base 140 away from the stepped portion 130 faces the shaft sleeve 221, and the first end 161 of the fastener 160 abuts against the shaft sleeve 221, so that the fastener 160 can be clamped with the shaft sleeve 221 and is not easy to be displaced relative to each other.

[0051] In summary, the shaft ring 100 of the utility model, the base 120 of the shaft ring 100 includes the stepped portion 130 and the base 140, the outer diameter of the stepped portion 130 is smaller than the outer diameter of the base 140, and when the shaft ring 100 and the insertion structure 310 of the insertion piece 300 are assembled, because of the existence of the stepped portion 130, a fixed gap is formed between the bottom surface 321 of the insertion piece 300 and the end surface 141 of the shaft ring 100, and when the bolt on the shaft ring 100 is tightened or loosened, the gap formed by the stepped portion 130 can provide a larger operation space, reduces the difficulty of installation and disassembly, improves the installation and maintenance efficiency, and the design of the stepped portion 130 can reduce the weight of the shaft ring 100 while maintaining the rigidity strength of the shaft ring 100, and further reduces the inertia of the shaft ring 100 and the shaft coupling 200 during operation. In addition, the fastener 160 is built in the screw hole 142, which avoids the need to additionally insert the fastener 160 into the screw hole 142 during installation, reduces the number of parts, and at the same time, the threaded area 1421 and the non-threaded area 1421 are arranged in the screw hole 142, so that the fastener 160 can only be displaced in the threaded area 1421, and when the shaft ring 100 and the shaft sleeve 221 are disassembled, the fastener 160 will not splash out of the screw hole 142 through the smooth area 1422, ensuring the smooth disassembly of the shaft ring 100, and improving the convenience and safety during disassembly.

[0052] In the description of the utility model, it is understood that the terms (if any) "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0053] The above examples are only used to illustrate the technical solutions of the utility model and not to limit it, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the utility model.

Claims

1. A collar for use in a coupling, the coupling configured to connect with an insert, the insert comprising a body structure and an insert structure at least partially inserted into the coupling, characterized in that, The collar comprises an inner hole and a base surrounding the outer part of the inner hole, the base comprises a bottom and a step part, the outer diameter of the step part is smaller than that of the bottom, the insertion structure is inserted into the inner hole from one side of the step part, the bottom comprises an end face towards one side of the step part, the main body structure comprises a bottom face towards the end face, and the step part is configured to form a gap between the bottom face and the end face.

2. The collar of claim 1, wherein The diameter of the inner hole gradually increases along the insertion direction of the insertion structure.

3. The collar of claim 1, wherein The step part comprises a step face and a step wall, the step face is parallel to the end face, and the two ends of the step wall are connected to the step face and the end face through chamfers respectively.

4. The collar of claim 3, wherein The step wall is perpendicular to the end face.

5. The collar of any one of claims 1 to 4, wherein, A chamfer is arranged on the edge of the bottom away from the inner hole.

6. A coupling, characterized by The coupling comprises a collar according to any one of claims 1-5.

7. The coupling of claim 6, wherein, The coupling comprises an intermediate part and transmission mechanisms at both ends of the intermediate part, and the collar is arranged on the side of the transmission mechanisms away from the intermediate part.

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