Transmission locking device for flywheel rotor

Abstract

The invention discloses a transmission locking device for a flywheel rotor. The transmission locking device is provided with a threaded shaft, a threaded shaft sleeve, a connecting shaft and a connecting shaft sleeve, the connecting shaft is connected with the threaded shaft and the connecting shaft sleeve. The threaded shaft is sleeved with the threaded shaft sleeve. The threaded shaft is provided with an external thread part, a limiting part and a connecting part, and external threads are arranged on the external thread part; the threaded shaft sleeve is provided with an internal thread part and a shaft sleeve part, and internal threads are arranged in the internal thread part; and the threaded shaft and the threaded shaft sleeve are respectively connected with the internal thread and the external thread of the short roller neck of the flywheel rotor through the external thread and the internal thread. According to the transmission locking device, torque transmission is achieved according to the principle that different screw pitches of the external threads and the internal threads at the ends of the short roll necks of the flywheel rotor are mutually locked in the axial direction, it is guaranteed that products are not affected by external force during grinding machining, and high machining precision is guaranteed; the technical problem that a flywheel rotor which is high in machining precision requirement and large in diameter difference of a roller body and a roller neck cannot be supported and ground is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of flywheel rotors, and in particular relates to a transmission locking device for a flywheel rotor. Background Art

[0002] Chinese patent document CN119420086A discloses a roller-type energy storage device and a manufacturing method thereof. The roller-type energy storage device is a new type of flywheel rotor. The flywheel rotor is characterized by high machining precision requirements and a large diameter difference between the roller body and the roller neck [the diameter ratio of the roller body 11 to the short roller neck 13 is as high as about 10 times].

[0003] Grinding a flywheel rotor, which requires high machining precision and a large diameter difference between the roll body and roll neck, is a difficult problem. Using top grinding, the roll body and the grinder base are very close due to the thin and short roll neck, making it impossible for the grinding wheel to grind the roll neck.

[0004] With support grinding, the roll neck also requires a certain length. Conventional solutions involve lengthening the blank or extending the flange. With the blank extension method, the large diameter difference between the roll body and the roll neck results in high material costs. Furthermore, due to the high machining precision requirements, the extended portion cannot be machined after removal, making super-finishing impossible in the final process. With the flange extension method, the thin and short roll neck lacks a hole at the end, which reduces transmission force and reduces machining precision requirements. Summary of the Invention

[0005] The purpose of the present invention is to solve the above problems and provide a transmission locking device for a flywheel rotor to solve the problem of difficult grinding of flywheel rotors with high machining accuracy requirements and large diameter drop of the roller body and roller neck.

[0006] The technical solution for achieving the purpose of the present invention is: a transmission locking device for a flywheel rotor, comprising a threaded shaft, a threaded sleeve, a connecting shaft and a connecting sleeve; the connecting shaft is connected to the threaded shaft and the connecting sleeve respectively; the threaded sleeve is sleeved on the threaded shaft.

[0007] The connecting shaft comprises a threaded shaft portion and a connecting shaft sleeve portion; the threaded shaft portion is provided with a first threaded through hole, and the connecting shaft sleeve portion is provided with a second threaded countersunk hole; the threaded shaft comprises an external threaded portion, a limiting portion and a connecting portion; the external threaded portion is provided with an external thread; the outer diameter of the connecting portion is adapted to the inner diameter of the threaded shaft portion of the connecting shaft; the connecting portion is provided with a first threaded countersunk hole adapted to the first threaded through hole on the threaded shaft portion of the connecting shaft; the connecting sleeve comprises a connecting shaft portion and a bolt connecting portion; the inner diameter of the connecting shaft portion is adapted to the outer diameter of the connecting sleeve portion of the connecting shaft; the connecting shaft portion is provided with a second threaded through hole adapted to the second threaded countersunk hole on the connecting sleeve portion of the connecting shaft; the end of the bolt connecting portion is provided with 4 to 8 bolt holes; the threaded sleeve has an internal threaded portion and a sleeve portion; the inner diameter of the sleeve portion is adapted to the outer diameter of the connecting portion of the threaded shaft; the inner diameter of the internal threaded portion is adapted to the outer diameter of the limiting portion of the threaded shaft; and the interior of the internal threaded portion is provided with an internal thread.

[0008] The first threaded countersunk holes on the connecting portion of the threaded shaft and the first threaded through holes on the threaded shaft portion of the connecting shaft are evenly distributed in the circumferential directions of the connecting portion and the threaded shaft portion, respectively.

[0009] The second threaded countersunk holes on the connecting sleeve portion of the connecting shaft and the second threaded through holes on the connecting shaft portion of the connecting sleeve are evenly distributed in the circumferential directions of the connecting sleeve portion and the connecting shaft portion, respectively.

[0010] The present invention has the positive effects: the transmission locking device of the present invention utilizes the principle of axial mutual locking generated by the different pitches of the external thread and the internal thread at the end of the short roller neck of the flywheel rotor to realize torque transmission, thereby ensuring that the product is not affected by external forces during grinding and ensuring high processing accuracy, thus solving the technical problem that the flywheel rotor with high processing accuracy requirements and large diameter drop of the roller body and roller neck cannot be supported for grinding, and the transmission locking device is easy to disassemble and assemble and has high working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the transmission locking device for the flywheel rotor of the present invention.

[0012] Figure 2 for Figure 1 Schematic diagram of the structure of the threaded shaft.

[0013] Figure 3 for Figure 1 Schematic diagram of the structure of the threaded sleeve.

[0014] Figure 4 for Figure 1 Schematic diagram of the structure of the connecting shaft.

[0015] Figure 5 for Figure 1 Schematic diagram of the structure of the connecting sleeve.

[0016] Figure 6 for Figure 5 Right view of .

[0017] Figure 7 Schematic diagram of the structure of the flywheel rotor and its short roller neck.

[0018] Figure 8 It is a schematic diagram of the connection between the transmission locking device of the present invention and the short roller neck of the flywheel rotor.

[0019] Figure 9 The following are photos of the transmission locking device of the present invention. DETAILED DESCRIPTION

[0020] (Example 1) See also Figure 1 The transmission locking device for the flywheel rotor of this embodiment includes a threaded shaft 1, a threaded sleeve 2, a connecting shaft 3 and a connecting sleeve 4. The connecting shaft 3 is connected to the threaded shaft 1 and the connecting sleeve 4 by bolts respectively, and the threaded sleeve 2 is sleeved on the threaded shaft 1.

[0021] See also Figures 2 to 6 The threaded shaft 1 has an external threaded portion 11, a limiting portion 12 and a connecting portion 13, the threaded sleeve 2 has an internal threaded portion 21 and a sleeve portion 22, the connecting shaft 3 has a threaded shaft portion 31 and a connecting sleeve portion 32, and the connecting sleeve 4 has a connecting shaft portion 41 and a bolt connecting portion 42.

[0022] The inner diameter of the internal threaded portion 21 of the threaded sleeve 2 is adapted to the outer diameter of the limiting portion 12 of the threaded shaft 1, the inner diameter of the sleeve portion 22 of the threaded sleeve 2 is adapted to the outer diameter of the connecting portion 13 of the threaded shaft 1, the inner diameter of the threaded shaft portion 31 of the connecting shaft 3 is adapted to the outer diameter of the connecting portion 13 of the threaded shaft 1, and the inner diameter of the connecting shaft portion 41 of the connecting sleeve 4 is adapted to the outer diameter of the connecting sleeve portion 32 of the connecting shaft 3.

[0023] The connecting portion 13 of the threaded shaft 1 is provided with four evenly distributed first threaded countersunk holes 13-1 around its circumference, and the threaded shaft portion 31 of the connecting shaft 3 is provided with four evenly distributed first threaded through holes 31-1 around its circumference. The four first threaded countersunk holes 13-1 are adapted to the four first threaded through holes 31-1.

[0024] The connecting shaft 3 has four evenly distributed second threaded countersunk holes 32-1 around its connecting sleeve portion 32, and the connecting shaft 41 has four evenly distributed second threaded through holes 41-1 around its connecting sleeve portion 41. The four second threaded countersunk holes 32-1 correspond to the four second threaded through holes 41-1.

[0025] See also Figures 2-3 as well as Figures 7-8 The external thread portion 11 of the threaded shaft 1 is provided with an external thread 11-1, which is adapted to the internal thread 210-1 of the short roll neck 210 of the flywheel rotor 200. In this embodiment, the threaded shaft 1 has an internal thread 21-1, which is adapted to the external thread 210-2 of the short roll neck 210 of the flywheel rotor 200. In this embodiment, the threaded shaft 2 has an internal thread 21-1. The internal thread 21-1 is adapted to the external thread 210-2 of the short roll neck 210 of the flywheel rotor 200. In this embodiment, the threaded shaft 2 has an internal thread 21-1.

[0026] See also Figures 5-6 as well as Figure 9 The end of the bolt connection portion 42 of the connecting sleeve 4 is provided with 8 evenly distributed bolt holes 42-1, which are used to connect the flywheel rotor of this embodiment with the grinding machine base through the universal joint using the transmission locking device to form a complete transmission mechanism.

[0027] When using the transmission locking device for the flywheel rotor of this embodiment, the external thread of the threaded shaft 1 is first connected to the internal thread of the short roller neck 210 of the flywheel rotor 200. Then, the threaded sleeve 2 is sleeved onto the threaded shaft 1 and connected to the external thread of the short roller neck 210 of the flywheel rotor 200. Then, the connecting shaft 3 is connected to the threaded shaft 1 and the connecting sleeve 4 is connected to the connecting shaft 3 by bolts. Finally, one end of the universal coupling is connected to the connecting sleeve 4 by bolts, and the other end is connected to the grinding machine base.

[0028] During the grinding process, torque transmission is achieved by utilizing the principle of axial interlocking caused by the different pitches of the external and internal threads at the end of the short roll neck 210 of the flywheel rotor 200 .

Claims

1. A transmission locking device for a flywheel rotor, characterized in that It comprises a threaded shaft (1), a threaded sleeve (2), a connecting shaft (3) and a connecting sleeve (4); The connecting shaft (3) is respectively connected to the threaded shaft (1) and the connecting shaft sleeve (4); the threaded shaft sleeve (2) is sleeved on the threaded shaft (1).

2. The transmission locking device for a flywheel rotor according to claim 1, characterized in that: The connecting shaft (3) comprises a threaded shaft portion (31) and a connecting shaft sleeve portion (32); a first threaded through hole (31-1) is provided on the threaded shaft portion (31), and a second threaded countersunk hole (32-1) is provided on the connecting shaft sleeve portion (32); The threaded shaft (1) comprises an external threaded portion (11), a limiting portion (12), and a connecting portion (13); the external threaded portion (11) is provided with an external thread (11-1); the outer diameter of the connecting portion (13) is adapted to the inner diameter of the threaded shaft portion (31) of the connecting shaft (3); the connecting portion (13) is provided with a first threaded countersunk hole (13-1) adapted to the first threaded through hole (31-1) on the threaded shaft portion (31) of the connecting shaft (3); The connecting sleeve (4) comprises a connecting shaft portion (41) and a bolt connecting portion (42); the inner diameter of the connecting shaft portion (41) is adapted to the outer diameter of the connecting sleeve portion (32) of the connecting shaft (3); the connecting shaft portion (41) is provided with a second threaded through hole (41-1) adapted to the second threaded countersunk hole (32-1) on the connecting sleeve portion (32) of the connecting shaft (3); and the end portion of the bolt connecting portion (42) is provided with 4 to 8 bolt holes (42-1); The threaded sleeve (2) comprises an internal threaded portion (21) and a sleeve portion (22); the inner diameter of the sleeve portion (22) is adapted to the outer diameter of the connecting portion (13) of the threaded shaft (1); the inner diameter of the internal threaded portion (21) is adapted to the outer diameter of the limiting portion (12) of the threaded shaft (1); and an internal thread (21-1) is provided inside the internal threaded portion (21).

3. The transmission locking device for a flywheel rotor according to claim 2, characterized in that: The first threaded countersunk hole (13-1) on the connecting portion (13) of the threaded shaft (1) and the first threaded through hole (31-1) on the threaded shaft portion (31) of the connecting shaft (3) are evenly distributed in the circumferential directions of the connecting portion (13) and the threaded shaft portion (31), respectively.

4. The transmission locking device for a flywheel rotor according to claim 1, characterized in that: The second threaded countersunk hole (32-1) on the connecting shaft sleeve portion (32) of the connecting shaft (3) and the second threaded through hole (41-1) on the connecting shaft portion (41) of the connecting shaft sleeve (4) are evenly distributed in the circumferential direction of the connecting shaft sleeve portion (32) and the connecting shaft portion (41), respectively.

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