Shaft generator journal sticking type split coupling

Abstract

The utility model belongs to the technical field of couplings, and particularly relates to an axle generator journal sticking type split coupler which comprises a flange, the flange comprises an inner supporting flange and outer side flanges detachably connected to the two sides of the inner supporting flange, and the inner supporting flange and the outer side flanges each comprise a flange body and a positioning installation block. A positioning installation notch is formed in the flange body, the positioning installation block is located in the positioning installation notch, limiting ring grooves are formed in the left side face and the right side face of the inner supporting flange correspondingly, limiting convex rings are arranged on the sides, attached to the inner supporting flange, of the outer flanges correspondingly, the limiting convex rings are clamped in the limiting ring grooves, and expansion sleeve rings are arranged in the outer flanges correspondingly. Rapid centering of the flange can be achieved, meanwhile, the arranged limiting ring groove is matched with the limiting protruding ring, space constraint is further conducted on the structure of the coupler, installation errors and radial run-out and end face run-out after shaft connection are reduced, and the reliability of the coupler is improved. Meanwhile, dislocation of the positioning mounting notches can avoid stress concentration of the coupler and improve the structural strength of the coupler.

Description

Technical Field

[0001] This utility model belongs to the field of coupling technology, specifically relating to a shaft-driven generator clamp-type split coupling. Background Technology

[0002] In the field of mechanical transmission, shaft-clamping couplings are widely used as rigid connection devices in shaft transmission scenarios. This structure utilizes the clamping principle of split flanges and high-strength bolts for pre-tightening, and torque transmission is achieved through the contact friction between the flange surfaces of the two semi-circular clamps. In traditional designs, the drive shaft needs to be embedded in the inner diameter mating surface of the clamp, and an interference fit is formed by applying radial clamping force through axially distributed bolt groups.

[0003] However, during the installation of the shaft-clamping coupling, the parallelism of the flange end face and the coaxiality of the shaft axis must be controlled simultaneously. Misalignment of the two shafts will cause radial runout and end face oscillation of the shaft system, resulting in abnormal bearing wear and excessive vibration. Secondly, the circumferential V-shaped notch formed by the clamping structure produces a significant stress concentration effect, which is prone to fatigue crack propagation under alternating load conditions, thus reducing the structural strength of the shaft-clamping coupling.

[0004] To address the aforementioned issues, we propose a shaft-mounted generator split coupling. Utility Model Content

[0005] The purpose of this utility model is to provide a shaft-driven generator with a split coupling that can solve the problems of difficulty in controlling the parallelism between the flange end face and the axis during installation, and the stress concentration caused by the gap formed by the split structure of the clamp, which affects the structural strength.

[0006] The specific technical solution adopted by this utility model is as follows: A shaft-driven generator split coupling includes a flange, the flange including an inner support flange and outer flanges detachably connected to both sides of the inner support flange. Both the inner support flange and the outer flange include a flange body and a positioning mounting block. The flange body has a positioning mounting notch, and the positioning mounting block is located in the positioning mounting notch. The left and right sides of the inner support flange are provided with limit ring grooves. The outer flange is provided with a limit protrusion ring on one side that fits against the inner support flange. The limit protrusion ring is locked in the limit ring groove. The interior of the outer flange is provided with an expansion sleeve ring, and the expansion sleeve ring is connected to the inner support flange.

[0007] Preferably, the number of limiting ring grooves is ≥2, and the number of limiting protrusions is the same as the number of limiting ring grooves.

[0008] Preferably, the left inner edge and right inner edge of the positioning and mounting notch are tapered, and the left and right sides of the positioning and mounting block respectively match the tapered left and right inner edges of the positioning and mounting notch.

[0009] Preferably, the taper range of the left inner edge and the right inner edge of the positioning installation notch is 1° to 15°.

[0010] Preferably, the inner left and inner right sides of the positioning mounting notch are provided with reinforcing positioning notches, and the two sides of the positioning mounting block are provided with reinforcing positioning protrusions, which are engaged in the reinforcing positioning notches.

[0011] Preferably, the inner support flange includes an inner ring and an outer ring, with an expansion sleeve fitted on both sides of the inner ring, and the outer flange installed on both sides of the outer ring, wherein the thickness of the inner ring is less than the thickness of the outer ring.

[0012] Preferably, the connection between the inner ring and the outer ring is provided with a limiting step for engaging the limiting protrusion ring.

[0013] The technical effects achieved by this utility model are as follows: This utility model can quickly install the flange on the shaft through the positioning and installation notches set on the inner support flange and the outer flange. At the same time, the tapered setting of the positioning and installation block realizes tapered guidance, realizing the rapid centering of the flange. Meanwhile, the setting of the limiting ring groove and the limiting convex ring further constrains the space of the coupling structure, reduces installation error, and reduces radial runout and end face runout after shaft connection. At the same time, the misalignment of the positioning and installation notch can avoid stress concentration in the coupling and improve the structural strength of the coupling. Attached Figure Description

[0014] Figure 1 This is a sectional view of the present invention;

[0015] Figure 2 This is the front view of this utility model;

[0016] Figure 3 yes Figure 1 Enlarged view of section A in the middle;

[0017] Figure 4 yes Figure 2 Enlarged view of section B in the middle.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Inner support flange; 11. Inner ring; 12. Outer ring; 101. Flange body; 102. Positioning mounting block; 2. Outer flange; 3. Limiting ring groove; 4. Limiting protrusion ring; 5. Reinforced positioning notch; 6. Reinforced positioning protrusion; 7. Expansion ring. Detailed Implementation

[0020] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0021] This utility model embodiment provides a shaft-mounted generator split coupling, such as... Figure 1-4 As shown, the system includes flanges, comprising an inner support flange 1 and outer flanges 2 disposed on both sides of the inner support flange 1. The outer flanges 2 have circumferentially formed bolt holes, and the inner support flange 1 has threaded holes corresponding to the bolt holes. The outer flanges 2 are detachably connected to the inner support flange 1 via bolts passing through the bolt holes and connecting to the threaded holes. Both the inner support flange 1 and the outer flanges 2 include a flange body 101 and a positioning mounting block 102. The flange body 101 has a positioning mounting notch, and the positioning mounting block 102 is located within the positioning mounting notch. The left and right sides of the inner support flange 1 also have... The outer flange 2 is fitted with a limiting ring groove 3, and a limiting protrusion ring 4 is provided on one side of the inner support flange 1. The limiting protrusion ring 4 is locked in the limiting ring groove 3. An expansion sleeve ring 7 is provided inside the outer flange 2. The inner ring of the outer flange 2 is a tapered surface that gradually decreases in inner diameter close to the inner support flange 1. The outer side of the expansion sleeve ring 7 has a taper that matches the inner ring of the outer flange 2. An expansion sleeve adjusting bolt hole is opened on the expansion sleeve ring 7 at equal angles. An expansion sleeve fastening thread hole corresponding to the expansion sleeve adjusting bolt hole is opened on the inner support flange 1. The expansion sleeve ring 7 is connected by an expansion sleeve adjusting bolt that passes through the expansion sleeve adjusting bolt hole and is threaded to the inner support flange 1.

[0022] In this embodiment, there are two limiting ring grooves 3 and two limiting protrusions 4. In other embodiments, the number of limiting ring grooves 3 can be set to three or more, and the number of limiting protrusions 4 will increase accordingly.

[0023] In this embodiment, the left inner edge and the right inner edge of the positioning and mounting notch are tapered, and the tapering is tapered from the center of the flange to the circumference. The left side and the right side of the positioning and mounting block 102 respectively match the tapering of the left inner edge and the right inner edge of the positioning and mounting notch.

[0024] In this embodiment, the taper of the left inner edge and the right inner edge of the positioning and installation notch is 1°. In other embodiments, to facilitate guiding installation, the taper of the left inner edge and the right inner edge of the positioning and installation notch can be appropriate, and the maximum taper can be set to 15°.

[0025] In this embodiment, the inner left and inner right sides of the positioning mounting notch are provided with reinforcing positioning notches 5. Through wire cutting, reinforcing positioning protrusions 6 are integrally connected to both sides of the positioning mounting block 102, and the reinforcing positioning protrusions 6 are engaged in the reinforcing positioning notches 5.

[0026] In this embodiment, the inner support flange 1 includes an inner ring 11 and an outer ring 12 integrally connected to the outside of the inner ring 11. The expansion sleeve 7 is fitted to both sides of the inner ring 11, and the outer flange 2 is installed on both sides of the outer ring 12. The thickness of the inner ring 11 is less than the thickness of the outer ring 12.

[0027] In this embodiment, since the thickness of the inner ring 11 is less than that of the outer ring 12, a limiting step is formed at the connection between the inner ring 11 and the outer ring 12 for engaging the limiting protrusion 4. The limiting protrusion 4 with a smaller inner diameter is engaged at the connection between the inner ring 11 and the outer ring 12.

[0028] Working Principle: During installation, the expansion ring 7 is fitted onto the two shafts to be connected. The inner support flange 1 and outer flange 2 are secured to the shafts via positioning notches. The positioning block 102 is then installed in the positioning notch. The reinforcing positioning protrusion 6 facilitates positioning. Simultaneously, the taper of the left and right inner edges of the positioning notch allows for quick alignment between the flange and the shaft. The angles of the positioning notches on the inner support flange 1 and the two outer flanges 2 are adjusted to achieve misalignment between the outer flanges 2 and the inner support flange 1. The outer flanges 2 and the inner support flange 1 are then fastened together with connecting bolts. The expansion ring... 7. Push the outer flange 2 to the inner ring, connect the expansion sleeve ring 7 to the inner support flange 1. By adjusting the expansion sleeve adjusting bolt, the outer flange 2 squeezes the expansion sleeve ring 7 to lock the two shafts and achieve shaft connection. When the shaft rotates, the stress is concentrated on the outer ring 12 of the outer flange 2 and the inner support flange 1. By misaligning the positioning installation notch, the stress is avoided at the positioning installation notch, which further improves the structural strength of the coupling. At the same time, after installation, the tapered setting of the positioning installation block 102 achieves tapered guidance, realizing the rapid centering of the flange. At the same time, the setting of the limiting ring groove 3 and the limiting convex ring 4 further constrains the spatial structure of the coupling, reduces installation error, and reduces radial runout and end face runout after shaft connection.

[0029] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A shaft generator clamp-on split coupling comprising a flange, characterised in that: The flange includes an inner support flange and outer flanges detachably connected to both sides of the inner support flange. Both the inner support flange and the outer flanges include a flange body and a positioning mounting block. The flange body has a positioning mounting notch, and the positioning mounting block is located in the positioning mounting notch. The left and right sides of the inner support flange have limit ring grooves. The outer flange has a limit protrusion ring on one side that fits against the inner support flange. The limit protrusion ring is engaged in the limit ring groove. The outer flange has an expansion sleeve ring inside, and the expansion sleeve ring is connected to the inner support flange.

2. A shaft generator clamp split coupling according to claim 1, characterised in that: The number of limiting ring grooves is ≥2, and the number of limiting protrusions is the same as the number of limiting ring grooves.

3. A shaft generator clamp split coupling according to claim 1, wherein: The left inner edge and right inner edge of the positioning installation notch are tapered, and the left and right sides of the positioning installation block respectively match the tapered left and right inner edges of the positioning installation notch.

4. A shafting generator clamp shaft split coupling according to claim 3, characterized in that: The taper range of the left and right inner edges of the positioning and installation notch is 1° to 15°.

5. A shafting generator clamp shaft split coupling according to claim 1, characterized in that: The positioning mounting notch has reinforced positioning notches on its left and right inner edges, and reinforced positioning protrusions are provided on both sides of the positioning mounting block. The reinforced positioning protrusions are engaged in the reinforced positioning notches.

6. A shafting generator clamp shaft split coupling according to claim 1, characterized in that: The inner support flange includes an inner ring and an outer ring, with expansion sleeves fitted on both sides of the inner ring, and the outer flange installed on both sides of the outer ring. The thickness of the inner ring is less than the thickness of the outer ring.

7. A shafting generator clamp shaft split coupling according to claim 6, characterized in that: The connection between the inner ring and the outer ring is provided with a limiting step for engaging the limiting protrusion ring.

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