Transmission shaft middle power output split type connecting structure and assembling method
By using a split-flap connecting structure of power output flange, locking ring and inner ring on the ship's transmission shaft, the problem of increasing the stability and connection reliability of the transmission shaft structure when new electrical equipment is increased, and high torque output is achieved and the effect of simple construction.
Patent Information
- Application Number
- CN202411285153.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2024-12-06
AI Technical Summary
When adding new high-power electrical equipment to the transmission shaft of the ship drive propeller, the original generator is insufficient in power and needs to add a power output route in the middle of the transmission shaft, but the transmission shaft structural stability and non-detachable equipment are required. , lack of effective connection structure and assembly methods.
The power output flange, locking ring and inner ring adopts a split-flap connection structure, through conical surface matching and bolt connection, the fixed connection between the power output flange and the transmission shaft is realized, and two sets of locking rings are used to ensure high torque output. And the connection is completed without dismantling the original structure through a specific assembly method.
It realizes a reliable connection between the transmission shaft and the newly added power generation equipment, ensures the overall stability of the transmission shaft and the simplicity of construction, shortens the construction cycle, and has a large output torque, meeting high power requirements.
Smart Images
Figure CN119084552A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of transmission shaft power output connection structures, and in particular to a transmission shaft middle power output split-petal connection structure and an assembly method. Background Art
[0002] Once the propeller shaft is manufactured and installed, no further structural changes are made to drive other equipment. However, in some special cases, such as when a new high-power electrical device is added to the ship, the original generator power can no longer meet the power needs of the newly added equipment. In this case, one or more power outputs must be added to the original propeller shaft to drive the new generator.
[0003] However, when adding new power generation equipment, in order to ensure the stability of the original ship's drive shaft structure, any changes to the drive shaft structure, such as machining a keyway structure for transmitting torque on the drive shaft, are usually not allowed. At the same time, in order to reduce the amount of construction work, shorten the construction period, and ensure the overall stability and reliability of the original transmission structure, it is usually not allowed to dismantle any equipment connected to the original drive shaft. However, there is currently no information on the connection structure and assembly method between the middle part of the drive shaft and the newly added power generation equipment that meets the above requirements. Summary of the Invention
[0004] In order to overcome the shortcomings of the background technology, the present invention discloses a power output split-type connection structure and assembly method in the middle of the transmission shaft, which is used to solve the connection of a new power generation equipment on the transmission shaft of an existing ship driving propeller. While ensuring the overall stability and reliability of the original transmission shaft structure, it ensures the connection reliability and sufficient output torque between the transmission shaft and the new power generation equipment.
[0005] In order to achieve the stated purpose of the invention, the present invention adopts the following technical solutions: a power output petal connection structure in the middle of the transmission shaft, comprising a power output flange, a locking ring, and an inner ring, wherein the power output flange, the locking ring, and the inner ring are nested in sequence on the transmission shaft; the mating surfaces of the power output flange, the locking ring, and the inner ring are all conical surfaces; the power output flange, the locking ring, and the inner ring are all divided into several petals, and the several petal power output flanges are connected by bolts; two sets of locking rings are provided, and the two sets of locking rings are connected by locking bolts; when the locking bolts are tightened, the locking ring moves axially along the transmission shaft, and the outer circle of the locking ring tightens the power output flange by utilizing the conical surface fit, and the inner circle of the locking ring presses the inner ring to hug the transmission shaft, thereby achieving a fixed connection between the power output flange and the transmission shaft.
[0006] Furthermore, the power output flange includes a flange body, an outer circle surface of the flange body is provided with a flange plate and a connecting plate, the two power output flange petals are fixedly connected by the connecting plate, and through holes are evenly distributed on the flange plate for connection with the generator rotor; flange conical surfaces are symmetrically provided on both sides of the inner circle of the flange body.
[0007] Furthermore, a retaining ring is provided between the conical surfaces of the flanges on both sides.
[0008] Furthermore, the locking ring includes a locking ring A and a locking ring B; the outer circle of the locking ring A is provided with an outer conical surface of the locking ring A, the inner circle is provided with an inner conical surface of the locking ring A, and the end face is provided with a plurality of through bolt holes; the outer circle of the locking ring B is provided with an outer conical surface of the locking ring B, the inner circle is provided with an inner conical surface of the locking ring B, and the side end face adjacent to the locking ring A is provided with a plurality of threaded holes.
[0009] Furthermore, inner ring conical surfaces are symmetrically provided on both sides of the outer circle of the inner ring.
[0010] Furthermore, a transition surface is provided between the two inner conical surfaces.
[0011] Preferably, a locking ring is provided; a transition surface is provided on one side of the outer circle of the inner ring; a retaining ring is provided on one side of the inner circle of the power output flange, and a threaded hole is provided on the retaining ring, and the locking ring is connected to the retaining ring of the power output flange through a locking bolt.
[0012] A method for assembling a petal-type power output connection structure in the middle of a transmission shaft is suitable for assembly with two sets of locking rings, comprising the following steps: 1. setting a plurality of petal inner rings at a set position on the transmission shaft, and temporarily tying and fixing them with flexible ropes at the transition surface; 2. setting a plurality of petal power output flanges on the outside of the inner ring, and connecting them into a whole by bolts; the spliced power output flanges are supported by a bracket (assembly tool) and set at a set axial position on the transmission shaft; 3. setting a plurality of petal locking rings B on one side of the annular space between the power output flange and the inner ring, and preliminarily fixing the inner ring by utilizing the conical surface between the locking ring B and the power output flange and the inner ring; 4. removing the flexible rope for fixing the inner ring; setting a plurality of petal locking rings A on the other side of the annular space between the power output flange and the inner ring; 5. screwing in the locking bolts from the side of the locking ring A; calibrating the alignment of the inner ring and the power output flange; 6. sequentially and in multiple rounds, tightening all connecting bolts until the tightening torque of all connecting bolts finally reaches the set requirements, thereby completing the fixed connection between the power output flange and the transmission shaft.
[0013] A method for assembling a petal-type power output connection structure in the middle of a transmission shaft is suitable for assembly with a set of locking rings, comprising the following steps: 1. setting a plurality of petal inner rings at a set position on the transmission shaft, and temporarily tying and fixing them at the conical surface of the inner ring with a flexible rope; 2. setting a plurality of petal power output flanges on the outside of the inner ring, connecting them into a whole through bolts, and the retaining ring of the power output flange cooperates with the transition surface on one side of the outer circular surface of the inner ring to preliminarily fix the inner ring, and then removing the flexible rope for fixing the inner ring; the spliced power output flange is supported by a bracket and set at a set axial position on the transmission shaft; 3. setting a plurality of petal locking rings A in the annular space between the power output flange and the inner ring; 4. screwing in the locking bolts from the side of the locking ring A to connect them with the retaining ring of the power output flange; 5. sequentially and in multiple rounds, and finally the tightening torque of all the connecting bolts reaches the set requirements, completing the fixed connection between the power output flange and the transmission shaft.
[0014] Furthermore, the joints of the power output flange, locking ring A, locking ring B, and inner ring are all staggered.
[0015] Due to the adoption of the technical scheme as described above, the present invention has the following beneficial effects: a power output split-petal connection structure and assembly method for the middle part of a transmission shaft disclosed in the present invention includes a power output flange, two sets of locking rings, and an inner ring. The mating surfaces of the power output flange, the locking ring, and the inner ring are all conical surfaces and are divided into two petals. The two-petal power output flange is fixedly connected by connecting bolts; when the power output flange is connected to the transmission shaft, the power output flange, the locking ring, and the inner ring are spliced and nested in sequence on the transmission shaft, and the two sets of locking rings are connected by locking bolts; when the locking bolts are tightened, the two sets of locking rings move toward the middle along the axis of the transmission shaft, and the outer circle of the locking ring tightens the power output flange by utilizing the matching of the conical surfaces, and the inner circle of the locking ring presses the inner ring to hug the transmission shaft, thereby achieving a fixed connection between the power output flange and the transmission shaft; when assembling the power output split-petal connection structure for the middle part of the transmission shaft, it is not necessary to disassemble any connection structure of the original transmission shaft, and it has the advantages of small construction workload, short cycle, reliable transmission connection, and large output torque. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the appearance of the power output split-type connection structure in the middle of the transmission shaft after assembly; Figure 2 This is an exploded schematic diagram of the power output split-petal connection structure in the middle of the transmission shaft of Example 1; Figure 3 This is a cross-sectional diagram of the power output split-petal connection structure in the middle of the transmission shaft of Example 1; Figure 4 This is a schematic diagram of the appearance of the power output flange after splicing in Example 1; Figure 5 This is a schematic diagram of the appearance of the power output flange split in Example 1; Figure 6 This is a schematic diagram of the appearance of the locking ring A after splicing in Example 1; Figure 7 This is a schematic diagram of the appearance of the locking ring A in Example 1; Figure 8 This is a schematic diagram of the appearance of the locking ring B after splicing in Example 1; Figure 9 This is a schematic diagram of the appearance of the locking ring B in Example 1; Figure 10 This is a schematic diagram of the appearance of the inner ring after splicing in Example 1; Figure 11 This is a schematic diagram of the inner ring petals of Example 1; Figure 12 This is a cross-sectional diagram of the power output split-petal connection structure in the middle of the transmission shaft of Example 2.
[0017] In the figure: 1. Power output flange; 1.1. Flange body; 1.1.1. Flange conical surface; 1.1.2. Retaining ring; 1.2. Flange plate; 1.3. Connecting plate; 2. Locking ring A; 2.1. Outer conical surface of locking ring A; 2.2. Inner conical surface of locking ring A; 2.3. Bolt hole; 3. Locking ring B; 3.1. Outer conical surface of locking ring B; 3.2. Inner conical surface of locking ring B; 3.3. Threaded hole; 4. Inner ring; 4.1. Inner ring conical surface; 4.2. Transition surface; 5. Drive shaft. DETAILED DESCRIPTION
[0018] The present invention can be explained in detail by the following examples, the purpose of which is to disclose the present invention and to protect all technical improvements within the scope of the present invention.
[0019] A power output split-petal connection structure in the middle of a transmission shaft, which outputs power through a power output flange 1 to drive the generator rotor without changing any existing structure of the existing transmission shaft 5; the power output split-petal connection structure in the middle of the transmission shaft includes a power output flange 1, a locking ring, and an inner ring 4, which are nested in sequence on the transmission shaft 5; the mating surfaces of the power output flange 1, the locking ring, and the inner ring 4 are all conical surfaces; the power output flange 1, the locking ring, and the inner ring 4 are divided into several petals, and the several petals of the power output flange 1 are connected by bolts; there are two sets of locking rings, which are suitable for power output. The power output flange 1 is used when a higher output torque is required, and the two sets of locking rings are connected by locking bolts; when the locking bolts are tightened, the locking ring moves axially along the drive shaft 5, and the outer circle of the locking ring tightens the power output flange 1 by utilizing the interference fit of the conical surface, and the inner circle of the locking ring presses and clamps the inner ring 4 to clamp the drive shaft 5, thereby achieving a fixed connection between the power output flange 1 and the drive shaft 5; during the assembly process of the power output petal-type connection structure in the middle of the drive shaft, no relative displacement occurs between the inner ring 4 and the drive shaft 5, thereby preventing the outer circle surface of the drive shaft 5 from being damaged during the assembly process, thereby ensuring the overall stability and reliability of the original transmission structure of the drive shaft 5.
[0020] Furthermore, the power output flange 1 includes a flange body 1.1, a flange plate 1.2 and a connecting plate 1.3 are provided on the outer circular surface of the flange body 1.1, a connecting hole is provided on the connecting plate 1.3, and the two petals of the power output flange 1 are fixedly connected through the connecting plate 1.3; flange conical surfaces 1.1.1 are symmetrically provided on both sides of the inner circle of the flange body 1.1.
[0021] Furthermore, a retaining ring 1.1.2 is provided between the conical surfaces 1.1.1 of the flanges on both sides, and the retaining ring 1.1.2 is used for locking and positioning the locking ring A2 and the locking ring B3; it is additionally noted that after setting the retaining ring 1.1.2, the interference fit of the conical surfaces between the locking ring A2, the locking ring B3 and the power output flange 1 and the inner ring 4 must be accurately calculated, and the processing accuracy must be ensured at the same time, otherwise the locking ring A2 and the locking ring B3 may not be able to be locked in place, or the transmitted torque may not meet the design requirements after being locked in place.
[0022] Furthermore, the locking ring includes a locking ring A2 and a locking ring B3; the outer circle of the locking ring A2 is provided with an outer conical surface 2.1 of the locking ring A, the inner circle is provided with an inner conical surface 2.2 of the locking ring A, and the end face is provided with a plurality of through bolt holes 2.3; the outer circle of the locking ring B3 is provided with an outer conical surface 3.1 of the locking ring B, the inner circle is provided with an inner conical surface 3.2 of the locking ring B, and the side end face adjacent to the locking ring A2 is provided with a plurality of threaded holes 3.3.
[0023] Furthermore, inner ring conical surfaces 4.1 are symmetrically provided on both sides of the outer circle of the inner ring 4; and a transition surface 4.2 is provided between the two inner ring conical surfaces 4.1.
[0024] Preferably, a set of locking rings is provided; a transition surface 4.2 is provided on one side of the outer circumference of the inner ring 4; a retaining ring is provided on one side of the inner circumference of the power output flange 1, and a threaded hole is provided on the retaining ring, and the locking ring is connected to the retaining ring of the power output flange 1 through a locking bolt; the structure in which a set of locking rings is provided is suitable for use in situations where the output torque requirements of the power output flange 1 are low, thereby reducing the cost of the power output petal-type connection structure in the middle of the drive shaft.
[0025] A method for assembling a power take-off split-type connection structure in the middle of a transmission shaft, suitable for assembling with two sets of locking rings, comprising the following steps: 1. setting a plurality of petal inner rings 4 at a set position on the transmission shaft 5 and temporarily tying and fixing them with a flexible rope at the transition surface 4.2; 2. setting a plurality of petal power take-off flanges 1 on the outside of the inner ring 4 and connecting them into a whole by bolts; the spliced power take-off flanges 1 are supported by a bracket and set at an axial position set on the transmission shaft 5; 3. setting a plurality of petal locking rings B3 between the power take-off flange 1 and the inner ring 4; On one side of the annular space, use the conical surface between the locking ring B3 and the power output flange 1 and the inner ring 4 to preliminarily fix the inner ring 4; fourth, remove the flexible rope that fixes the inner ring 4; set several petal locking rings A2 on the other side of the annular space between the power output flange 1 and the inner ring 4; fifth, screw in the locking bolts from the locking ring A2 side; calibrate the alignment of the inner ring 4 and the power output flange 1; sixth, tighten all the connecting bolts in sequence and in multiple rounds, and finally the tightening torque of all the connecting bolts reaches the set requirements, completing the fixed connection between the power output flange 1 and the drive shaft 5.
[0026] A method for assembling a power output petal connection structure in the middle of a transmission shaft is suitable for assembly with a set of locking rings, comprising the following steps: 1. setting a plurality of petal inner rings 4 at a set position on the transmission shaft 5, and temporarily tying and fixing them at the conical surface 4.1 of the inner ring; 2. setting a plurality of petal power output flanges 1 on the outside of the inner ring 4, connecting them into a whole through bolts, and the retaining ring of the power output flange 1 cooperates with the transition surface 4.2 on one side of the outer circular surface of the inner ring 4 to preliminarily fix the inner ring 4, and then remove the flexible rope for fixing the inner ring 4; the spliced power output flange 1 is supported by a bracket and set at an axial position set on the transmission shaft 5; 3. setting a plurality of petal locking rings A2 in the annular space between the power output flange 1 and the inner ring 4; 4. screwing in the locking bolts from the side of the locking ring A2 to connect them with the retaining ring of the power output flange 1; 5. sequentially and in multiple rounds, and finally the tightening torque of all the connecting bolts reaches the set requirements, completing the fixed connection between the power output flange 1 and the transmission shaft 5.
[0027] Furthermore, the joints of the power output flange 1 , the locking ring A2 , the locking ring B3 , and the inner ring 4 are all staggered. Example 1:
[0028] See the instructions attached Figure 1 、 2 3: A power output split-petal connection structure in the middle of a transmission shaft, comprising a power output flange 1, a locking ring, and an inner ring 4. The power output flange 1, two sets of locking rings, and the inner ring 4 are all split into two petals; See the instructions attached Figure 4 、 5 The power output flange 1 includes a flange body 1.1, and a flange plate 1.2 and a connecting plate 1.3 are provided on the outer surface of the flange body 1.1; 36 through holes are evenly distributed on the flange plate 1.2 for fixed connection with the generator rotor; through holes and threaded holes are respectively provided on the connecting plates 1.3 of the two petals of the power output flange 1, and the two petals of the power output flange 1 are fixedly connected by connecting bolts; flange conical surfaces 1.1.1 are symmetrically provided on both sides of the inner circle of the flange body 1.1, and a retaining ring 1.1.2 is provided between the two flange conical surfaces 1.1.1; The two sets of locking rings are locking ring A2 and locking ring B3; see the instructions for Figure 6 、 7 : The outer circle of the locking ring A2 is provided with an outer conical surface 2.1 of the locking ring A, the inner circle is provided with an inner conical surface 2.2 of the locking ring A, and the end face is provided with 16 through bolt holes 2.3; see the attached manual Figure 8 、 9 : The outer circle of the locking ring B3 is provided with an outer conical surface 3.1 of the locking ring B, the inner circle is provided with an inner conical surface 3.2 of the locking ring B, and the end surface adjacent to the locking ring A2 is provided with 16 threaded holes 3.3; See the instructions attached Figure 10 、 11 : Inner ring conical surfaces 4.1 are symmetrically provided on both sides of the outer circle of the inner ring 4; a transition surface 4.2 is provided between the two inner ring conical surfaces 4.1; See the instructions attached Figure 2 、 3 : The inner ring 4 is set at a set position on the outer cylindrical surface of the transmission shaft 5; the locking ring B3 and the locking ring A2 are respectively arranged on the left and right sides of the inner ring 4, and the inner conical surface 3.2 of the locking ring B and the inner conical surface 2.2 of the locking ring A respectively cooperate with the inner conical surfaces 4.1 of the inner ring 4 on the left and right sides, and the locking ring B3 and the locking ring A2 are connected by locking bolts; the power output flange 1 is set outside the locking ring B3 and the locking ring A2, and the conical surfaces of the flanges on the left and right sides respectively cooperate with the outer conical surfaces 3.1 of the locking ring B and the outer conical surface 2.1 of the locking ring A, and the two power output flanges 1 are fixedly connected by connecting plates 1.3 and bolts; when tightening the locking bolts, the locking ring B3 and the locking ring A2 move toward the middle along the axis of the transmission shaft 5. By utilizing the conical surface cooperation, the locking ring B3 and the locking ring A2 tighten the power output flange 1, press the inner ring 4 to hug the transmission shaft 5, and realize the fixed connection between the power output flange 1 and the transmission shaft 5.
[0029] In this embodiment, the retaining ring 1.1.2 on the inner surface of the power take-off flange 1 can also be eliminated.
[0030] In this embodiment, the power take-off flange 1 , the two sets of locking rings, and the inner ring 4 can also be divided into three petals.
[0031] The assembly method of the power output split-petal connection structure in the middle of the transmission shaft of this embodiment includes the following steps: Place the two-petal inner ring 4 at the set position of the transmission shaft 5 and temporarily tie it with a flexible rope at the transition surface 4.2; The two-petal power output flange 1 is arranged outside the inner ring 4 and connected into a whole by bolts; the spliced power output flange 1 is supported by a bracket (assembly tool) and arranged at a predetermined axial position of the transmission shaft 5; Place the two-petal locking ring B3 on the left side of the annular space between the PTO flange 1 and the inner ring 4, and use the conical surfaces between the locking ring B3, the PTO flange 1, and the inner ring 4 to preliminarily secure the inner ring 4. Remove the flexible rope that secures the inner ring 4; install the two-petal locking ring A2 on the right side of the annular space between the power take-off flange 1 and the inner ring 4; Screw in the locking bolt from the locking ring A2 side; align the inner ring 4 with the power take-off flange 1; Tighten all connecting bolts in sequence and in multiple rounds, and finally the tightening torque of all tightening bolts reaches 2500Nm; after the power output flange 1 and the drive shaft 4 are fixedly connected, the output torque of the power output flange 1 must reach the design requirement of 4200KNm. Example 2:
[0032] See the instructions attached Figure 12 : In this embodiment, only one set of locking ring A2 is provided; accordingly, the inner circle surface of the flange body 1.1 of the power output flange 1 is provided with a flange conical surface 1.1.1 only on the right side, and the retaining ring 1.1.2 is provided at the left end of the flange conical surface 1.1.1, and 16 threaded holes are evenly distributed on the retaining ring 1.1.2; accordingly, the outer circle of the inner ring 4 is provided with an inner ring conical surface 4.1 only on the right side, and a transition surface 4.2 is provided at the left end of the inner ring conical surface 4.1.
[0033] The assembly method of the power output split-petal connection structure in the middle of the transmission shaft of this embodiment includes the following steps: 1. Place the two-petal inner ring 4 on the set position of the transmission shaft 5 and temporarily tie it with a flexible rope at the conical surface 4.1 of the inner ring; Second, place the two-petal power take-off flange 1 on the outside of the inner ring 4 and connect them into a whole with bolts. The retaining ring on the left end of the power take-off flange 1 is engaged with the transition surface 4.2 on the left end of the outer circumference of the inner ring 4 to preliminarily fix the inner ring 4. Then remove the flexible rope that fixes the inner ring 4. The spliced power take-off flange 1 is supported by a bracket and placed in the axial position set by the transmission shaft 5. 3. Place the two-petal locking ring A2 in the annular space between the power take-off flange 1 and the inner ring 4; 4. Screw in the locking bolt from the locking ring A2 side and connect it to the retaining ring of the power output flange 1; 5. Tighten all the connecting bolts in sequence and in multiple rounds until the tightening torque of all the connecting bolts reaches the set requirements, completing the fixed connection between the power output flange 1 and the drive shaft 5.
[0034] During the assembly process of the power output split-type connection structure in the middle of the transmission shaft, the joints of the power output flange 1, the locking ring A2, the locking ring B3, and the inner ring 4 are all staggered.
[0035] It should be understood that the present solution is not limited to the above-mentioned specific implementation methods, and the equipment, tooling and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-mentioned disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present solution without departing from the scope of the technical solution of the present solution, or modify it into an equivalent embodiment with equivalent changes, which does not affect the essential content of the present solution; therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present solution without departing from the content of the technical solution of the present solution still falls within the scope of protection of the technical solution of the present solution.
[0036] The parts not described in detail in this invention are prior art.
Claims
1. A transmission shaft middle power output split-petal connection structure, comprising a power output flange (1), a locking ring, and an inner ring (4), wherein the power output flange (1), the locking ring, and the inner ring (4) are sequentially nested and arranged on the transmission shaft (5); wherein: The mating surfaces of the power output flange (1), the locking ring and the inner ring (4) are all conical surfaces; the power output flange (1), the locking ring and the inner ring (4) are all divided into a plurality of petals, and the plurality of petals of the power output flange (1) are connected by bolts; two sets of locking rings are provided, and the two sets of locking rings are connected by locking bolts; when the locking bolts are tightened, the locking ring moves axially along the transmission shaft (5), and by utilizing the mating of the conical surfaces, the outer circle of the locking ring tightens the power output flange (1), and the inner circle of the locking ring presses the inner ring (4) to hold the transmission shaft (5), thereby realizing a fixed connection between the power output flange (1) and the transmission shaft (5).
2. According to claim 1, the power output split-petal connection structure in the middle of the transmission shaft is characterized by: The power output flange (1) comprises a flange body (1.1), wherein a flange plate (1.2) and a connecting plate (1.3) are provided on the outer circumferential surface of the flange body (1.1), and two petals of the power output flange (1) are fixedly connected via the connecting plate (1.3); and flange conical surfaces (1.1.1) are symmetrically provided on both sides of the inner circumferential surface of the flange body (1.1).
3. According to claim 2, the transmission shaft middle power output split-petal connection structure is characterized by: A retaining ring (1.1.2) is provided between the conical surfaces (1.1.1) of the flanges on both sides.
4. According to claim 1, the transmission shaft middle power output split-petal connection structure is characterized by: The locking ring comprises a locking ring A (2) and a locking ring B (3); the locking ring A (2) is provided with an outer conical surface (2.1) on its outer circle, an inner conical surface (2.2) on its inner circle, and a plurality of through bolt holes (2.3) on its end surface; the locking ring B (3) is provided with an outer conical surface (3.1) on its outer circle, a locking ring B inner conical surface (3.2) on its inner circle, and a plurality of threaded holes (3.3) on its side end surface adjacent to the locking ring A (2).
5. According to claim 1, the transmission shaft middle power output split-petal connection structure is characterized by: Inner ring conical surfaces (4.1) are symmetrically arranged on both sides of the outer circle of the inner ring (4).
6. According to claim 5, the transmission shaft middle power output split-petal connection structure is characterized by: A transition surface (4.2) is provided between the two inner conical surfaces (4.1).
7. According to claim 1, the transmission shaft middle power output split-petal connection structure is characterized by: A set of locking rings is provided; a transition surface (4.2) is provided on one side of the outer circumference of the inner ring (4); a retaining ring is provided on one side of the inner circumference of the power output flange (1), a threaded hole is provided on the retaining ring, and the locking ring is connected to the retaining ring of the power output flange (1) through a locking bolt.
8. An assembly method for the transmission shaft middle power output split-petal connection structure according to any one of claims 1 to 6, characterized in that:
1. Arrange the plurality of inner rings (4) at the set position of the transmission shaft (5) and temporarily tie and fix them with flexible ropes at the transition surface (4.2); 2. Arrange the plurality of power output flanges (1) at the outside of the inner ring (4) and connect them into a whole by bolts; the spliced power output flanges (1) are supported by brackets and arranged at the set axial position of the transmission shaft (5); 3. Arrange the plurality of locking rings B (3) at one side of the annular space between the power output flange (1) and the inner ring (4); and use the locking rings B (3) to connect the power output flanges (1) and the inner ring (4) to the power output flanges (1). The conical surfaces between the inner rings (4) are matched to preliminarily fix the inner ring (4); 4. Remove the flexible rope fixing the inner ring (4); set a plurality of petal locking rings A (2) on the other side of the annular space between the power output flange (1) and the inner ring (4); 5. Screw in the locking bolts from the locking ring A (2); calibrate the alignment of the inner ring (4) and the power output flange (1); 6. Tighten all the connecting bolts in sequence and in multiple rounds, and finally the tightening torque of all the connecting bolts reaches the set requirements, thereby completing the fixed connection between the power output flange (1) and the transmission shaft (5).
9. An assembly method based on the transmission shaft middle power output split-petal connection structure according to claim 7, characterized in that:
1. Arrange a plurality of inner rings (4) at a set position on the transmission shaft (5), and temporarily tie and fix them at the conical surface (4.1) of the inner ring with a flexible rope; 2. Arrange a plurality of power output flanges (1) at the outer side of the inner ring (4), connect them into a whole by bolts, and cooperate the retaining ring of the power output flange (1) with the transition surface (4.2) on one side of the outer cylindrical surface of the inner ring (4) to preliminarily fix the inner ring (4), and then remove the flexible rope for fixing the inner ring (4); the spliced power output flange (1) is supported by a bracket and arranged at a set axial position on the transmission shaft (5); 3. Arrange a plurality of locking rings A (2) in the annular space between the power output flange (1) and the inner ring (4); 4. Screw in the locking bolts from the side of the locking ring A (2) to connect them with the retaining ring of the power output flange (1); 5. Tighten all the connecting bolts in sequence and in multiple rounds, and finally the tightening torque of all the connecting bolts reaches the set requirements, and the fixed connection between the power output flange (1) and the transmission shaft (5) is completed.
10. The assembly method of the transmission shaft middle power output split-petal connection structure according to claim 8 or 9, characterized in that: The joints of the power output flange (1), the locking ring A (2), the locking ring B (3), and the inner ring (4) are all arranged in a staggered manner.