Locking disc assembly structure for power output in middle of transmission shaft

Abstract

A locking disc assembly structure for power output in the middle of a transmission shaft is characterized in that a locking disc assembly comprises a locking disc inner ring, a locking disc inner ring and a locking disc outer ring, the locking disc inner ring, the locking disc inner ring and the locking disc outer ring are sequentially nested from inside to outside, and conical surfaces are arranged between matching surfaces; the locking disc assembly is arranged in an annular space between the transmission shaft and the power output structural part, a locking disc middle ring is moved through a bolt, the inner diameter of the locking disc middle ring and the outer diameter of a locking disc outer ring are changed at the same time, and therefore fixed connection between the transmission shaft and the power output structural part is achieved. The locking disc inner ring, the locking disc middle ring and the locking disc outer ring are all of a split type structure, during construction, the multiple sections are directly spliced into the complete locking disc inner ring, the complete locking disc middle ring and the complete locking disc outer ring at the set positions of the transmission shaft, and therefore the locking disc inner ring, the locking disc middle ring and the locking disc outer ring cannot be detached in the construction process, and any connecting structure of an original transmission shaft cannot be affected. The device has the advantages of small construction work amount, reliable transmission connection and large output torque.

Description

Technical Field

[0001] The utility model relates to the technical field of drive shaft output connection structures, and particularly relates to a locking disc assembly structure for power output in the middle of a drive shaft. Background Art

[0002] Generally, a drive shaft is designed to output and drive one or several devices, and after manufacturing and installation are completed, no structural changes will be made to drive other devices; however, in some special cases, for example, the drive shaft of an original ship driving a propeller needs to add one or more power outputs in the middle of the original drive shaft on the basis of the original drive shaft output structure to drive new devices (such as the rotor of a newly added generator). At the same time, to ensure the stability of the original ship drive shaft structure, no changes are allowed to be made to the drive shaft structure, such as machining a keyway structure for torque transmission on the drive shaft; at the same time, when adding one or more power outputs to the drive shaft of the original ship driving the propeller, to reduce the construction workload and ensure the overall stability and reliability of the original transmission structure, it is usually not allowed to disassemble any device connected to the original drive shaft, that is, on the basis of not affecting the original drive shaft connection structure, modify and add power output in the middle of the drive shaft to achieve a reliable connection between the drive shaft and the newly added device and ensure sufficient output torque; however, there is currently no information revealing the connection structure and connection method between the middle part of the drive shaft and the newly added device that meet the above requirements. Summary of the Utility Model

[0003] In order to overcome the deficiencies in the background art, the utility model discloses a locking disc assembly structure for power output in the middle of a drive shaft, which is used to solve the new technical problem of adding a new power output in the middle of a drive shaft after manufacturing and installation are completed, and achieve the technical effects of ensuring the overall stability and reliability of the original transmission structure while ensuring the connection reliability and sufficient output torque between the drive shaft and the newly added device.

[0004] In order to achieve the purpose of the utility model, the following technical scheme is adopted: a locking disc assembly structure for power output in the middle of a drive shaft is used for fixedly connecting a power output structural member with an assembled drive shaft without changing any of its existing structures; the locking disc assembly includes a locking disc inner ring, a locking disc middle ring, and a locking disc outer ring, which are nested in sequence from the inside to the outside, and conical surfaces are provided between the mating surfaces; the locking disc assembly is arranged in the annular space between the drive shaft and the power output structural member, and by moving the locking disc middle ring with bolts, the inner diameter of the locking disc inner ring and the outer diameter of the locking disc outer ring are simultaneously changed by using the conical surfaces between the mating surfaces, so as to achieve the fixed connection between the drive shaft and the power output structural member; one set of the locking disc assembly is provided.

[0005] Furthermore, both the power output structural member and the locking disc assembly are split-type structures; the number of split parts of the power output structural member and the locking disc assembly is more than [number].

[0006] Furthermore, the locking disc assembly includes a locking disc outer ring, a locking disc inner ring, a middle locking disc ring A, and a middle locking disc ring B; both sides of the inner circular surface of the locking disc outer ring are provided with inner conical surfaces; both sides of the outer circular surface of the locking disc inner ring are provided with outer conical surfaces; both the inner and outer circular surfaces of the middle locking disc ring A are respectively provided with a middle ring A inner conical surface and a middle ring A outer conical surface; both the inner and outer circular surfaces of the middle locking disc ring B are respectively provided with a middle ring B inner conical surface and a middle ring B outer conical surface; the locking disc inner ring is arranged on the outer circular surface of the transmission shaft, the locking disc outer ring is arranged outside the locking disc inner ring, the middle locking disc ring A and the middle locking disc ring B are arranged between the locking disc inner ring and the locking disc outer ring and are connected by a plurality of bolts; when the locking bolts, the middle locking disc ring A and the middle locking disc ring B move axially, and the inner and outer diameters of the locking disc assembly are changed simultaneously by using the conical surfaces, and the power output structural member is power-connected to the transmission shaft.

[0007] Preferably, the locking disc assembly includes a locking disc outer ring, a locking disc inner ring, a middle locking disc ring, and an end ring; the inner circular surface of the locking disc outer ring is provided with an inner conical surface; the outer circular surface of the locking disc inner ring is provided with an outer conical surface; both the inner and outer circular surfaces of the middle locking disc ring are respectively provided with a middle ring inner conical surface and a middle ring outer conical surface; the locking disc inner ring is arranged on the outer circular surface of the transmission shaft, the locking disc outer ring is arranged outside the locking disc inner ring, the middle locking disc ring is arranged between the locking disc inner ring and the locking disc outer ring, the end ring is arranged on one end face of the locking disc outer ring and the locking disc inner ring, and the middle locking disc ring and the end ring are connected by a plurality of bolts; when the locking bolts, the middle locking disc ring moves axially, and the inner and outer diameters of the locking disc assembly are changed simultaneously by using the conical surfaces, so that the power output structural member is power-connected to the transmission shaft.

[0008] Furthermore, there are two sets of locking disc assemblies.

[0009] Furthermore, a power output structural member positioning ring is provided on the inner circular surface of the power output structural member.

[0010] Furthermore, an outer ring positioning ring is provided on the inner circular surface of the locking disc outer ring; an inner ring positioning ring is provided on the outer circular surface of the locking disc inner ring.

[0011] Furthermore, a plurality of through holes and ejecting threaded holes are evenly distributed on the end face of the middle locking disc ring A; a plurality of locking threaded holes are evenly distributed on the end face of the middle locking disc ring B.

[0012] Due to the above - mentioned technical solution, the utility model has the following beneficial effects: A locking disc assembly structure for power output in the middle of a transmission shaft disclosed by the utility model, the locking disc assembly includes a locking disc inner ring, a locking disc middle ring, and a locking disc outer ring. The locking disc inner ring, the locking disc middle ring, and the locking disc outer ring are nested in sequence from inside to outside, and conical surfaces are provided between the mating surfaces; the locking disc assembly is arranged in the annular space between the transmission shaft and the power output structural member. By moving the locking disc middle ring with bolts, the inner diameter of the locking disc inner ring and the outer diameter of the locking disc outer ring change simultaneously, so as to realize the fixed connection between the transmission shaft and the power output structural member; the locking disc inner ring, the locking disc middle ring, and the locking disc outer ring all adopt a split - type structure. During construction, several splits are directly spliced into the complete locking disc inner ring, locking disc middle ring, and locking disc outer ring at the set position of the transmission shaft. Therefore, the construction process will not disassemble or affect any connection structure of the original transmission shaft, and has the advantages of small construction work quantity, reliable transmission connection, and large output torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 FIG. is a schematic view of the appearance after the connection between the power output structural member in the middle of the transmission shaft and the transmission shaft is completed;

[0014] Figure 2 FIG. is a schematic view of the overall appearance of the power output structural member;

[0015] Figure 3 FIG. is a schematic view of the split appearance of the power output structural member in Embodiment 1;

[0016] Figure 4 FIG. is a schematic view of the connection structure between the transmission shaft and the power output structural member through the locking disc assembly in Embodiment 1;

[0017] Figure 5 FIG. is a schematic view of the connection structure between the transmission shaft and the power output structural member through the locking disc assembly in Embodiment 2;

[0018] Figure 6 FIG. is a schematic view of the appearance of the locking disc assembly in Embodiment 2 Figure 1 ;

[0019] Figure 7 FIG. is a schematic view of the appearance of the locking disc assembly in Embodiment 2 Figure 2 ;

[0020] Figure 8 FIG. is a schematic cross - sectional structure view of the locking disc assembly in Embodiment 2;

[0021] Figure 9 FIG. is a schematic view of the appearance after the split parts of the locking disc outer ring in Embodiment 2 are spliced;

[0022] Figure 10 FIG. is a schematic view of the split appearance of the locking disc outer ring in Embodiment 2;

[0023] Figure 11 Schematic diagram of the appearance of the inner ring of the locking disc after segmental splicing in the second embodiment;

[0024] Figure 12 Schematic diagram of the appearance of the segmental inner ring of the locking disc in the second embodiment;

[0025] Figure 13 Schematic diagram of the appearance of the segmental middle ring A of the locking disc after splicing in the second embodiment;

[0026] Figure 14 Schematic diagram of the appearance of the segmental middle ring A of the locking disc in the second embodiment;

[0027] Figure 15 Schematic diagram of the appearance of the segmental middle ring B of the locking disc after splicing in the second embodiment;

[0028] Figure 16 Schematic diagram of the appearance of the segmental middle ring B of the locking disc in the second embodiment;

[0029] Figure 17 Schematic diagram of the connection structure of the drive shaft and the power output structural member through the locking disc assembly in the third embodiment;

[0030] Figure 18 Schematic diagram of the appearance of the segmental power output structural member in the third embodiment.

[0031] In the figure: 1. Drive shaft; 2. Power output structural member; 2.1. Power output structural member positioning ring; 3. Locking disc assembly; 3.1. Locking disc outer ring; 3.1.1. Inner conical surface; 3.1.2. Outer ring positioning ring; 3.2. Locking disc inner ring; 3.2.1. Outer conical surface; 3.2.2. Inner ring positioning ring; 3.3. Locking disc middle ring A; 3.3.1. Middle ring A inner conical surface; 3.3.2. Middle ring A outer conical surface; 3.3.3. Through hole; 3.3.4. Ejector threaded hole; 3.4. Locking disc middle ring B; 3.4.1. Middle ring B inner conical surface; 3.4.2. Middle ring B outer conical surface; 3.4.3. Locking threaded hole; 3.5. Locking disc middle ring; 3.6. End ring. Detailed implementation manners

[0032] The present utility model can be explained in detail through the following embodiments, and the purpose of disclosing the present utility model is to protect all technical improvements within the scope of the present utility model.

[0033] A locking disc assembly structure for power output in the middle of a transmission shaft is used for fixedly connecting an existing transmission shaft 1 to a power output structural member 2 without changing any of its existing structures. The locking disc assembly 3 includes a locking disc inner ring 3.2, a locking disc middle ring, and a locking disc outer ring 3.1. The locking disc inner ring 3.2, the locking disc middle ring, and the locking disc outer ring 3.1 are nested in sequence from the inside to the outside, and conical surfaces are provided between the mating surfaces. The locking disc assembly 3 is arranged in the annular space between the transmission shaft 1 and the power output structural member 2. By moving the locking disc middle ring with bolts, the inner diameter of the locking disc inner ring 3.2 and the outer diameter of the locking disc outer ring 3.1 are simultaneously changed by using the conical surfaces between the mating surfaces, so as to realize the fixed connection between the transmission shaft 1 and the power output structural member 2. In the locking disc assembly structure of the present utility model, an axial displacement of a structural member must occur to realize the connection between the transmission shaft 1 and the power output structural member 2, and the contact pressure and friction force between the conical surfaces of the two components with axial displacement are very large, which may cause adhesion damage to the contact surfaces between the two components with axial displacement. The reason for setting the locking disc inner ring 3.2, the locking disc middle ring, and the locking disc outer ring 3.1 is to prevent contact between the component with axial displacement (the locking disc middle ring) and the transmission shaft 1 and the power output structural member 2, so as to prevent damage to the outer cylindrical surface of the transmission shaft 1 or the inner hole surface of the power output structural member 2 during the assembly process, and thus ensure the overall stability and reliability of the original transmission structure of the transmission shaft 1.

[0034] Further, both the power output structural member 2 and the locking disc assembly 3 are split structures. On the premise that any equipment connected to the original transmission shaft 1 is not allowed to be disassembled, the two ends of the transmission shaft 1 are closed. When the power output structural member 2 and the locking disc assembly 3 are complete ring structures, they cannot be installed. After setting the power output structural member 2 and the locking disc assembly 3 as split structures, they can be installed in a splicing manner in the middle of the transmission shaft 1, thus solving the connection and assembly problem between the power output structural member 2, the locking disc assembly 3 and the transmission shaft 1 with closed ends.

[0035] The number of split parts of the power output structural member 2 and the locking disc assembly 3 is more than 2. Usually, the power output structural member 2 and the locking disc assembly 3 are divided into two parts. However, in some cases, for example, when the volume and weight of the power output structural member 2 and the locking disc assembly 3 are too large and the on-site construction space is too narrow to use construction machinery for auxiliary construction, the power output structural member 2 and the locking disc assembly 3 can be divided into three parts or more parts at this time to reduce the volume and weight of each part, so as to facilitate construction.

[0036] Further, the locking disc assembly 3 includes a locking disc outer ring 3.1, a locking disc inner ring 3.2, a locking disc middle ring A 3.3, and a locking disc middle ring B 3.4; both sides of the inner circular surface of the locking disc outer ring 3.1 are provided with inner conical surfaces 3.1.1; both sides of the outer circular surface of the locking disc inner ring 3.2 are provided with outer conical surfaces 3.2.1; both the inner and outer circular surfaces of the locking disc middle ring A 3.3 are provided with a middle ring A inner conical surface 3.3.1 and a middle ring A outer conical surface 3.3.2 respectively; both the inner and outer circular surfaces of the locking disc middle ring B 3.4 are provided with a middle ring B inner conical surface 3.4.1 and a middle ring B outer conical surface 3.4.2 respectively; the locking disc inner ring 3.2 is arranged on the outer circular surface of the transmission shaft 1, the locking disc outer ring 3.1 is arranged outside the locking disc inner ring 3.2, and the locking disc middle ring A 3.3 and the locking disc middle ring B 3.4 are arranged in the conical annular space between the locking disc inner ring 3.2 and the locking disc outer ring 3.1 and are connected by a plurality of bolts; when the locking bolts, the locking disc middle ring A 3.3 and the locking disc middle ring B 3.4 move axially, and the inner and outer diameters of the locking disc assembly 3 are changed simultaneously by using the conical surfaces to realize the power connection between the power output structural member 2 and the transmission shaft 1; the design of splitting the locking disc middle ring into two symmetrical structures can shorten the width of the conical surfaces of the locking disc outer ring 3.1, the locking disc inner ring 3.2 and the locking disc middle ring under the condition that the width of the power output structural member 2 is certain. Correspondingly, the conical surfaces of the locking disc outer ring 3.1, the locking disc inner ring 3.2 and the locking disc middle ring cooperating with each other can also prevent the wall thickness at the large aperture end of the locking disc outer ring 3.1 and the locking disc inner ring 3.2 from being too thin on the premise of adopting a larger taper; after the conical surface adopts a larger taper, it can prevent adhesion and self-locking between the locking disc middle ring and the conical surfaces of the locking disc outer ring 3.1 and the locking disc inner ring 3.2 during the locking displacement process of the locking disc middle ring. Therefore, when disassembling, repairing, and replacing the power output structural member 2, the locking disc assembly can still be reused; in addition, after the locking disc middle ring is split into two symmetrical structures, the outward tensioning locking force of the locking disc outer ring 3.1 and the locking disc inner ring 3.2 can be more uniform in the axial direction, which can ensure the reliability of the connection structure between the transmission shaft 1 and the power output structural member 2 and a larger transmitted torque; the locking disc assembly 3 with this structure has passed the experiment, and the maximum transmitted torque between the transmission shaft 1 and the power output structural member 2 can exceed 6 times the rated designed transmitted torque.

[0037] Further, the locking disc assembly 3 includes a locking disc outer ring 3.1, a locking disc inner ring 3.2, a locking disc middle ring 3.5, and an end ring 3.6; the inner circular surface of the locking disc outer ring 3.1 is provided with an inner conical surface 3.1.1; the outer circular surface of the locking disc inner ring 3.2 is provided with an outer conical surface 3.2.1; the inner and outer circular surfaces of the locking disc middle ring 3.5 are respectively provided with a middle ring inner conical surface 3.3.1 and a middle ring outer conical surface 3.3.2; the locking disc inner ring 3.2 is arranged on the outer circular surface of the transmission shaft 1, the locking disc outer ring 3.1 is arranged outside the locking disc inner ring 3.2, the locking disc middle ring 3.5 is arranged between the locking disc inner ring 3.2 and the locking disc outer ring 3.1, the end ring 3.6 is arranged on one end face of the locking disc outer ring 3.1 and the locking disc inner ring 3.2, and the locking disc middle ring 3.5 and the end ring 3.6 are connected by a plurality of bolts; when the locking bolts, the locking disc middle ring 3.5 moves axially, and the inner and outer diameters of the locking disc assembly 3 are changed simultaneously by using the conical surface, so that the power output structural member 2 is power-connected to the transmission shaft 1.

[0038] Further, there are two sets of locking disc assemblies 3; when the width of the power output structural member 2 is larger, its load torque requirement is also larger. By setting two sets of locking disc assemblies 3, a larger transmission torque can be provided to meet the requirement of the larger load torque of the power output structural member 2.

[0039] Further, a power output structural member positioning ring 2.1 is provided on the inner circular surface of the power output structural member 2; the power output structural member positioning ring 2.1 is used for the axial positioning of the locking disc assembly 3.

[0040] Further, an outer ring positioning ring 3.1.2 is provided on the inner circular surface of the locking disc outer ring 3.1, and an inner ring positioning ring 3.2.2 is provided on the outer circular surface of the locking disc inner ring 3.2; both the outer ring positioning ring 3.1.2 and the inner ring positioning ring 3.2.2 are used for the positioning of the locking disc middle ring when it is locked in place, to avoid the asymmetry of the positions of the locking disc middle rings on both sides after the locking disc middle ring is locked, resulting in uneven locking force of the locking disc assembly 3 on the axis; it should be added that: after setting the outer ring positioning ring 3.1.2 and the inner ring positioning ring 3.2.2, it is necessary to accurately calculate the interference amount of the conical surface fit between the locking disc outer ring 3.1, the locking disc inner ring 3.2 and the locking disc middle ring, and ensure the machining accuracy at the same time, otherwise there may be problems that the locking disc middle ring cannot be locked in place, or the transmission torque cannot meet the design requirements after being locked in place.

[0041] Further, a plurality of through holes 3.3.3 and ejecting threaded holes 3.3.4 are evenly distributed on the end face of the locking disc middle ring A3.3; the through holes 3.3.3 are used for passing through the connecting bolts, and the ejecting threaded holes 3.3.4 are used to eject the locking disc middle ring A3.3 and the locking disc middle ring B3.4 by a jackscrew when disassembling the locking disc assembly 3, which is convenient for the disassembly of the locking disc assembly 3; a plurality of locking threaded holes 3.4.3 are evenly distributed on the end face of the locking disc middle ring B3.4, which are used for meshing connection with the connecting bolts.

[0042] A connection method for a locking disc assembly structure for power output in the middle of a transmission shaft. The power output structural member 2 and the locking disc assembly 3 directly splice several segments at a set position on the transmission shaft 1 to form a complete output structural member 2 and locking disc assembly 3. By means of a locking bolt, the middle ring of the locking disc moves axially, and the inner and outer diameters of the locking disc assembly 3 are changed by using a conical surface to make a power connection between the power output structural member 2 and the transmission shaft 1. This connection method is applicable to the situation where the original connection structures at both ends of the transmission shaft 1 are not allowed to be removed. When using this connection method, the outer ring 3.1 of the locking disc, the inner ring 3.2 of the locking disc, and the middle ring of the locking disc in the power output structural member 2 and the locking disc assembly 3 are all split structures.

[0043] A connection method for a locking disc assembly structure for power output in the middle of a transmission shaft. The power output structural member 2 and the locking disc assembly 3 both start from one end of the transmission shaft 1 and are movably arranged at the set position of the transmission shaft 1. By means of a locking bolt, the middle ring of the locking disc moves axially, and the inner and outer diameters of the locking disc assembly 3 change simultaneously by using a conical surface to make a power connection between the power output structural member 2 and the transmission shaft 1. This connection method is applicable to the situation where the original connection structure at one end of the transmission shaft 1 can be removed. When using this connection method, the outer ring 3.1 of the locking disc, the inner ring 3.2 of the locking disc, and the middle ring of the locking disc in the power output structural member 2 and the locking disc assembly 3 are usually integral ring structures. Embodiment 1:

[0044] See the attached Figure 1 : It shows the appearance of the power output structural member 2 fixedly arranged in the middle of the transmission shaft 1. The power output structural member 2 is used to connect the generator rotor (the generator rotor is fixedly connected to the flange in the middle of the outer circle of the power output structural member 2). The transmission shaft 1 and the power output structural member 2 are fixedly connected through the locking disc assembly 3. See the attached Figure 2 、 3 : The power output structural member 2 is divided into two split structures and is fixedly connected into an integral ring structure by bolts. A positioning ring 2.1 of the power output structural member is provided at one end of the inner circular surface of the power output structural member 2.

[0045] See the attached Figure 4: The locking disc assembly 3 includes a locking disc outer ring 3.1, a locking disc inner ring 3.2, a locking disc middle ring 3.5, and an end ring 3.6. The outer circular surface of the locking disc outer ring 3.1 is a cylindrical surface, and the inner circular surface is a conical surface; the outer circular surface of the locking disc inner ring 3.2 is a conical surface, and the inner circular surface is a cylindrical surface; the inner and outer circular surfaces of the locking disc middle ring 3.5 are both conical surfaces, and 32 through holes are evenly distributed on the end faces; the end ring 3.6 is an annular thick plate, and 32 threaded holes are evenly distributed on the end face, and the positions of the threaded holes correspond to the positions of the through holes of the locking disc middle ring 3.5; the locking disc outer ring 3.1, the locking disc inner ring 3.2, the locking disc middle ring 3.5, and the end ring 3.6 are all divided into two-lobe structures; the locking disc inner ring 3.2, the locking disc middle ring 3.5, and the locking disc outer ring 3.1 are nested from the inside to the outside in sequence, the end ring 3.6 is arranged at the left end, and the locking disc middle ring 3.5 is connected to the threaded holes of the end ring 3.6 through connecting bolts to form the locking disc assembly 3; the locking disc assembly 3 is arranged in the annular space between the transmission shaft 1 and the power output structural member 2, and is positioned in the axial direction of the transmission shaft 1 by the cooperation of the right end face of the locking disc outer ring 3.1 and the power output structural member positioning ring 2.1 of the power output structural member 2;

[0046] By driving the locking disc middle ring 3.5 to move along the axial direction of the transmission shaft 1 through the locking bolt, and using the cooperation of the conical surfaces between the locking disc middle ring 3.5 and the locking disc outer ring 3.1 and the locking disc inner ring 3.2, the inner diameter of the locking disc inner ring 3.2 and the outer diameter of the locking disc outer ring 3.1 change simultaneously, so as to fixedly connect the transmission shaft 1 and the power output structural member 2 together, and enable the power output structural member 2 to reliably output the load torque according to the design load requirements.

[0047] The connection method of the locking disc assembly structure for power output in the middle of the transmission shaft is as follows:

[0048] One: First, put the two-lobe power output structural member 2 on the outer circular surface of the transmission shaft 1, and use bolts to splice the two-lobe power output structural member 2 into a complete circular ring structure; then support the spliced power output structural member 2 at the set axial position of the transmission shaft 1 with a bracket (tooling);

[0049] Two: Splice the two-lobe locking disc inner ring 3.2 on the outer circular surface of the transmission shaft 1 outside the left side of the power output structural member 2; then splice the two-lobe locking disc middle ring 3.5 on the outer circular surface of the locking disc inner ring 3.2, and the splicing seam of the locking disc middle ring 3.5 is arranged in a staggered manner with the splicing seam of the locking disc inner ring 3.2; finally, splice the two-lobe locking disc outer ring 3.1 on the outer circular surface of the locking disc middle ring 3.5, and the splicing seam of the locking disc outer ring 3.1 is arranged in a staggered manner with the splicing seam of the locking disc middle ring 3.5;

[0050] Three: Fix it on the left half of the outer circular surface of the locking disc outer ring 3.1 with a temporary fixing ring (tooling);

[0051] IV: Splice the two end rings 3.6 and set them at the right end of the assembled inner ring 3.2, middle ring 3.5, and outer ring 3.1 of the locking disc. Then, pass the connecting bolts through the through holes in the middle ring 3.5 of the locking disc and connect them to the threaded holes in the end ring 3.6 to initially complete the assembly of the locking disc assembly 3.

[0052] V: Push the initially assembled locking disc assembly 3 along the transmission shaft 1. First, insert the locking disc assembly 3 into the annular space between the transmission shaft 1 and the power output structural member 2, remove the temporary fixing ring, and then fully push the locking disc assembly 3 into the annular space between the transmission shaft 1 and the power output structural member 2. Through the cooperation between the right end face of the outer ring 3.1 of the locking disc and the positioning ring 2.1 of the power output structural member 2, positioning in the axial direction of the transmission shaft 1 is achieved; then push the inner ring 3.2 of the locking disc to make it reliably positioned.

[0053] VI: Tighten all the connecting bolts in sequence and in multiple rounds until the tightening torque of all the connecting bolts reaches 2500 Nm; after the output structural member 2 is fixedly connected to the transmission shaft 1, the torque output by the power output structural member 2 needs to reach the designed requirement of 4200 KNm. Embodiment 2:

[0054] See the attached Figure 6 、 7 、8: The locking disc assembly 3 includes an outer ring 3.1 of the locking disc, an inner ring 3.2 of the locking disc, a middle ring A 3.3 of the locking disc, and a middle ring B 3.4 of the locking disc; see the attached Figure 9 、 10 : On both sides of the inner circular surface of the outer ring 3.1 of the locking disc, there are symmetric inner conical surfaces 3.1.1, and between the two symmetric inner conical surfaces 3.1.1, there is an outer ring positioning ring 3.1.2; see the attached Figure 11 、 12 : On both sides of the outer circular surface of the inner ring 3.2 of the locking disc, there are symmetric outer conical surfaces 3.2.1, and between the two symmetric outer conical surfaces 3.2.1, there is an inner ring positioning ring 3.2.2; see the attached Figure 13 、 14 : On the inner and outer circular surfaces of the middle ring A 3.3 of the locking disc, there are respectively a middle ring A inner conical surface 3.3.1 and a middle ring A outer conical surface 3.3.2. On the end face of the middle ring A 3.3 of the locking disc, there are 32 through holes 3.3.3 and 8 ejector threaded holes 3.3.4 evenly distributed; see the attached Figure 15 、 16 : On the inner and outer circular surfaces of the middle ring B 3.4 of the locking disc, there are respectively a middle ring B inner conical surface 3.4.1 and a middle ring B outer conical surface 3.4.2. On the end face of the middle ring B 3.4 of the locking disc, there are 32 locking threaded holes 3.4.3 evenly distributed, and the locking threaded holes 3.4.3 correspond to the through holes 3.3.3; the outer ring 3.1 of the locking disc, the inner ring 3.2 of the locking disc, the middle ring A 3.3 of the locking disc, and the middle ring B 3.4 of the locking disc are all divided into two-piece structures; see the attachedFigure 8 : The outer ring 3.1 of the locking disc is arranged outside the inner ring 3.2 of the locking disc. The middle ring A 3.3 and the middle ring B 3.4 of the locking disc are arranged in the conical annular space between the inner ring 3.2 and the outer ring 3.1 of the locking disc and are connected by 32 bolts to form the locking disc assembly 3. The locking disc assembly 3 is arranged in the annular space between the transmission shaft 1 and the power output structural member 2. Through the cooperation between the right end face of the outer ring 3.1 of the locking disc and the positioning ring 2.1 of the power output structural member 2 of the power output structural member, the positioning of the locking disc assembly 3 in the axial direction of the transmission shaft 1 is realized;

[0055] By driving the middle ring A 3.3 and the middle ring B 3.4 of the locking disc to move towards the middle along the axis of the transmission shaft 1 through the locking connection bolts, and using the cooperation of the conical surfaces between the middle ring A 3.3 and the middle ring B 3.4 of the locking disc and the outer ring 3.1 and the inner ring 3.2 of the locking disc, the inner diameter of the inner ring 3.2 of the locking disc and the outer diameter of the outer ring 3.1 of the locking disc change simultaneously, so as to fixedly connect the transmission shaft 1 and the power output structural member 2 together, enabling the power output structural member 2 to reliably output the load torque according to the design load requirements;

[0056] In this embodiment, the outer ring positioning ring 3.1.2 of the outer ring 3.1 of the locking disc and the inner ring positioning ring 3.2.2 of the inner ring 3.2 of the locking disc are not necessary structures.

[0057] In this embodiment, the connection method of the locking disc assembly structure for power output in the middle of the transmission shaft is basically the same as that in Embodiment 1; the difference is that: in Step 2, the two split middle rings A 3.3 and middle rings B 3.4 of the locking disc are spliced on the outer circumferential surface of the inner ring 3.2 of the locking disc; in Step 4, there is no need to set the two split end rings 3.6 anymore, but directly connect the connection bolts through the through holes of the middle ring A 3.3 of the locking disc and the threaded holes of the middle ring B 3.4 of the locking disc to initially complete the assembly of the locking disc assembly 3. Embodiment 3:

[0058] See the attached drawings of the specification Figure 17 : In this embodiment, the structure of the locking disc assembly 3 is exactly the same as that in Embodiment 2; the difference between this embodiment and Embodiment 2 is that in the annular space between the transmission shaft 1 and the power output structural member 2, two sets of locking disc assemblies 3 are symmetrically arranged; to cooperate with the positioning of this setting method of the locking disc assembly 3, the power output structural member positioning ring 2.1 is arranged at the middle position in the width direction of the inner circumferential surface of the power output structural member 2;

[0059] In this embodiment, the connection method of the locking disc assembly structure for power output in the middle of the transmission shaft is basically the same as that in Embodiment 2; the difference is that: the two sets of locking disc assemblies 3 are respectively pushed into the annular space between the transmission shaft 1 and the power output structural member 2 from both sides of the power output structural member 2.

[0060] Another connection method for the locking disc assembly structure for power output in the middle of the transmission shaft is as follows: The power output structural member 2 and the locking disc assembly 3 both start from one end of the transmission shaft 1 and are movably arranged at the set positions on the transmission shaft 1. The middle ring of the locking disc is axially moved through the locking bolts, and the inner and outer diameters of the locking disc assembly 3 are simultaneously changed by using the conical surface to power-connect the power output structural member 2 and the transmission shaft 1; this connection method is applicable to the situation where the original connection structure at one end of the transmission shaft 1 can be removed. When using this connection method, the power output structural member 2, the outer ring 3.1 of the locking disc, the inner ring 3.2 of the locking disc, and the middle ring of the locking disc in the locking disc assembly 3 are usually of an integral ring structure. However, for the split-structured output structural member 2 and locking disc assembly 3, this connection method is also equally applicable.

[0061] It should be understood that the present solution is not limited to the above specific implementation manners. The equipment, tooling, and structures not described in detail should be understood to be implemented in a common manner in the art; any person skilled in the art can make many possible changes and modifications to the technical solution of the present solution, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present solution, which does not affect the essence 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 fall within the scope of protection of the technical solution of the present solution.

[0062] The parts not detailed in the present utility model are prior art.

Claims

1. A locking disc assembly structure for power output in the middle of a transmission shaft. The locking disc assembly (3) is used for fixedly connecting the assembled transmission shaft (1) with a power output structural member (2) without changing any of its existing structures. The characteristics are as follows: The locking disc assembly (3) includes a locking disc inner ring (3.2), a locking disc middle ring, and a locking disc outer ring (3.1). The locking disc inner ring (3.2), the locking disc middle ring, and the locking disc outer ring (3.1) are nested in sequence from the inside to the outside, and conical surfaces are provided between the mating surfaces. The locking disc assembly (3) is arranged in the annular space between the transmission shaft (1) and the power output structural member (2). By moving the locking disc middle ring with bolts, the inner diameter of the locking disc inner ring (3.2) and the outer diameter of the locking disc outer ring (3.1) are simultaneously changed by using the conical surfaces between the mating surfaces, so as to realize the fixed connection between the transmission shaft (1) and the power output structural member (2). There is one set of the locking disc assembly (3).

2. The structure of the locking disc assembly for power output in the middle of the transmission shaft according to claim 1, wherein: Both the power output structural member (2) and the locking disc assembly (3) are split structures; the number of split parts of the power output structural member (2) and the locking disc assembly (3) is more than 2.

3. The structure of the locking disc assembly for power output in the middle of the transmission shaft according to claim 1 is characterized in that: The locking disc assembly (3) includes a locking disc outer ring (3.1), a locking disc inner ring (3.2), a locking disc middle ring A (3.3), and a locking disc middle ring B (3.4); inner conical surfaces (3.1.1) are provided on both sides of the inner circular surface of the locking disc outer ring (3.1); outer conical surfaces (3.2.1) are provided on both sides of the outer circular surface of the locking disc inner ring (3.2); a middle ring A inner conical surface (3.3.1) and a middle ring A outer conical surface (3.3.2) are respectively provided on the inner and outer circular surfaces of the locking disc middle ring A (3.3); a middle ring B inner conical surface (3.4.1) and a middle ring B outer conical surface (3.4.2) are respectively provided on the inner and outer circular surfaces of the locking disc middle ring B (3.4); the locking disc inner ring (3.2) is arranged on the outer circular surface of the transmission shaft (1), the locking disc outer ring (3.1) is arranged outside the locking disc inner ring (3.2), the locking disc middle ring A (3.3) and the locking disc middle ring B (3.4) are arranged between the locking disc inner ring (3.2) and the locking disc outer ring (3.1), and are connected by a number of bolts; when the locking bolts, the locking disc middle ring A (3.3) and the locking disc middle ring B (3.4) move axially, and the inner and outer diameters of the locking disc assembly (3) are simultaneously changed by using the conical surfaces, so as to realize the power connection between the power output structural member (2) and the transmission shaft (1).

4. The structure of the locking disc assembly for power output in the middle of the transmission shaft according to claim 1 is characterized in that: The locking disc assembly (3) includes a locking disc outer ring (3.1), a locking disc inner ring (3.2), a locking disc middle ring (3.5), and an end ring (3.6); the inner circular surface of the locking disc outer ring (3.1) is provided with an inner conical surface (3.1.1); the outer circular surface of the locking disc inner ring (3.2) is provided with an outer conical surface (3.2.1); the inner and outer circular surfaces of the locking disc middle ring (3.5) are respectively provided with a middle ring inner conical surface and a middle ring outer conical surface; the locking disc inner ring (3.2) is arranged on the outer circular surface of the transmission shaft (1), the locking disc outer ring (3.1) is arranged on the outside of the locking disc inner ring (3.2), the locking disc middle ring (3.5) is arranged between the locking disc inner ring (3.2) and the locking disc outer ring (3.1), the end ring (3.6) is arranged on one end face of the locking disc outer ring (3.1) and the locking disc inner ring (3.2), and the locking disc middle ring (3.5) and the end ring (3.6) are connected by a plurality of bolts; when the bolts are tightened, the locking disc middle ring (3.5) moves axially, and the conical surfaces are used to change the inner and outer diameters of the locking disc assembly (3) simultaneously, so that the power output structural member (2) is power-connected to the transmission shaft (1).

5. The structure of the locking disc assembly for power output in the middle of the transmission shaft according to claim 1, wherein: There are two sets of locking disc assemblies (3).

6. The structure of the locking disc assembly for power output in the middle of the transmission shaft according to claim 1, wherein: A power output structural member positioning ring (2.1) is provided on the inner circular surface of the power output structural member (2).

7. The structure of the locking disc assembly for power output in the middle of the transmission shaft according to claim 3 is characterized in that: An outer ring positioning ring (3.1.2) is provided on the inner circular surface of the locking disc outer ring (3.1); an inner ring positioning ring (3.2.2) is provided on the outer circular surface of the locking disc inner ring (3.2).

8. The structure of the locking disc assembly for power output in the middle of the transmission shaft according to claim 3, characterized in that: A plurality of through holes (3.3.3) and ejecting threaded holes (3.3.4) are evenly distributed on the end face of the locking disc middle ring A (3.3); a plurality of locking threaded holes (3.4.3) are evenly distributed on the end face of the locking disc middle ring B (3.4).

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