Insulating motor shaft

Abstract

The utility model discloses an insulating motor shaft, including motor shaft, the one side outside of motor shaft is equipped with insulating sleeve, four groups of insertion holes are arranged in one side of insulating sleeve, the mounting hole of being opposite insertion hole is arranged in the one end of motor shaft and insulating sleeve inner wall, the insertion hole and mounting hole inside slide have inserted rod, one end fixedly connected with threaded rod of inserted rod, the threaded hole of cooperation threaded rod is arranged in the inside of motor shaft, the sliding slot is arranged in the inside of inserted rod, the sliding rod is slidably connected in the inside of sliding slot, the fixedly connected with rack of both sides of sliding rod, the installation slot that communicates with sliding slot is arranged in both sides of inserted rod, the locking slot of cooperation locking board is arranged in the outside of mounting hole, can design the detachable structure for insulating layer, and the local replacement is convenient when maintaining.

Description

Technical Field

[0001] This utility model relates to the field of motor shaft technology, specifically to an insulated motor shaft. Background Technology

[0002] The motor shaft is a core mechanical component in a motor used to transmit torque, support the rotor, and connect external loads (such as gears, pulleys, impellers, etc.). Its main functions include mechanical support, power transmission, and precision assurance.

[0003] The core purpose of motor shaft insulation is to prevent shaft current from causing electro-corrosion of the bearing. This is usually achieved by spraying an insulating coating on the inner or outer ring of the bearing or by using insulating materials to make the bearing housing. Once this type of insulation is worn, aged, or damaged, the insulating components cannot be replaced individually. The entire motor shaft or even the entire motor must be replaced, resulting in high maintenance costs and long maintenance cycles. Utility Model Content

[0004] The purpose of this invention is to provide an insulated motor shaft to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an insulated motor shaft, comprising a motor shaft, an insulating sleeve fitted on one side of the motor shaft, four sets of insertion holes on one side of the insulating sleeve, mounting holes facing the insertion holes on one end of the motor shaft and the inner wall of the insulating sleeve, an insertion rod slidably connected inside the insertion holes and mounting holes, a threaded rod fixedly connected to one end of the insertion rod, a threaded hole mating with the threaded rod inside the motor shaft, a sliding groove inside the insertion rod, a sliding rod slidably connected inside the sliding groove, racks fixedly connected to both sides of the sliding rod, mounting grooves communicating with the sliding grooves on both sides of the insertion rod, a locking plate rotatably connected inside the mounting grooves, a connecting gear fixedly connected to one end of the locking plate, the connecting gear meshing with the rack, and several sets of locking grooves mating with the locking plate on the outer side of the mounting holes.

[0006] Preferably, one end of the insertion rod is fixedly connected to a first truncated cone, the first truncated cone having a receiving groove inside, one end of the sliding rod is fixedly connected to a second truncated cone that matches the receiving groove, one side of the first truncated cone and the second truncated cone having a matching first slot, a connecting piece is fixedly connected to the outside of the sliding rod, a spring is fixedly connected between the connecting piece and the inner wall of the sliding groove, and the spring is sleeved on the outside of the sliding rod.

[0007] Preferably, two sets of follower grooves are provided on both sides of one end of the sliding groove, and follower plates are fixedly connected to both sides of one end of the sliding rod, with the follower plates slidably connected inside the follower grooves.

[0008] Preferably, a rotating groove is formed inside one end of the insulating sleeve, a rotating shaft is rotatably connected to the middle of the rotating groove, a rotating ring is fixedly connected to the outside of the rotating shaft, and four sets of connecting grooves are formed on the outside of the rotating ring.

[0009] Preferably, a second slot is provided at one end of the rotating shaft, and a torsion spring is fixedly connected between the rotating ring and the rotating slot, with the torsion spring sleeved on the outside of the rotating shaft.

[0010] Preferably, a plurality of positioning grooves are provided on the outer side of one end of the motor shaft, and a plurality of positioning plates are fixedly connected inside the insulating sleeve, the positioning plates being slidably connected inside the positioning grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model achieves the connection of the insulating sleeve by placing it on the outside of the motor shaft. The insertion rod can be smoothly inserted into the mounting hole. The slotted screw drives the first truncated cone to rotate, threading the threaded rod into the threaded hole, thus realizing the installation of the insulating sleeve and the motor shaft. When the slotted screw is disengaged, the spring pulls the connecting piece, causing the sliding rod to move and the locking plate to be released into the locking groove, preventing the insertion rod from rotating and causing the threaded rod to disengage from the threaded hole. The insulating layer can be designed as a detachable sleeve structure, and the insulating layer is firmly installed, facilitating partial replacement during maintenance.

[0013] 2. This utility model also uses a torsion spring to pull the rotating ring to rotate, and the connecting groove intersects with the insertion hole, thereby blocking the insertion hole and preventing external contact with the first and second truncated cones, thus isolating and protecting the locking structure. Attached Figure Description

[0014] Figure 1 This is a first-person perspective three-dimensional structural perspective view of the present invention;

[0015] Figure 2 This is a cross-sectional view of the insulating sleeve structure from a second perspective of this utility model;

[0016] Figure 3 This is a schematic diagram of the third-view insertion rod structure of this utility model;

[0017] Figure 4 This is a cross-sectional view of the fourth-view insertion rod structure of this utility model;

[0018] Figure 5 This is a cross-sectional view of the fifth-angle insulating sleeve structure of this utility model.

[0019] In the diagram: 1. Motor shaft; 2. Insulating sleeve; 3. Positioning groove; 4. Positioning plate; 5. Insertion hole; 6. Mounting hole; 7. Threaded hole; 8. Locking groove; 9. Insertion rod; 10. Threaded rod; 11. Mounting groove; 12. Locking plate; 13. Connecting gear; 14. Sliding groove; 15. Sliding rod; 16. Connecting piece; 17. Spring; 18. Rack; 19. Follower plate; 20. Follower groove; 21. First frustum; 22. Second frustum; 23. First slot; 24. Rotating groove; 25. Rotating shaft; 26. Rotating ring; 27. Connecting groove; 28. Torsion spring; 29. ​​Second slot; 30. Receiving groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This utility model provides a technical solution: an insulated motor shaft, including a motor shaft 1, with an insulating sleeve 2 sleeved on one side of the motor shaft 1. The insulating layer is designed as a removable insulating sleeve 2 for easy partial replacement during maintenance. Four sets of insertion holes 5 are provided on one side of the insulating sleeve 2. One end of the motor shaft 1 and the inner wall of the insulating sleeve 2 have mounting holes 6 facing the insertion holes 5. An insertion rod 9 is slidably installed inside the insertion holes 5 and the mounting holes 6. A threaded rod 10 is fixedly welded to one end of the insertion rod 9. A threaded hole 7 is provided inside the motor shaft 1 to mate with the threaded rod 10. By installing the insertion rod 9 along the insertion hole 5 into the mounting hole 6 and threading the threaded rod 10 into the threaded hole 7, the insulating sleeve 2 and the motor shaft 1 are connected. The insertion rod 9 has a sliding groove 14 inside, and a sliding rod 15 is slidably installed inside the sliding groove 14. A rack 18 is fixedly welded to both sides of the sliding rod 15. The insertion rod 9 has a mounting groove 11 on both sides that communicates with the sliding groove 14. A locking plate 12 is rotatably installed inside the mounting groove 11. A connecting gear 13 is fixedly welded to one end of the locking plate 12. The connecting gear 13 meshes with the rack 18. Several sets of locking grooves 8 that cooperate with the locking plate 12 are opened on the outside of the mounting hole 6. By sliding the insertion rod 9 along the sliding groove 14, the rack 18 drives the connecting gear 13 to rotate, thereby releasing the locking plate 12 and inserting it into any locking groove 8, preventing the insertion rod 9 from rotating and causing the threaded rod 10 to disengage from the threaded hole 7.

[0022] A first frustum 21 is fixedly welded to one end of the insertion rod 9. The first frustum 21 is engaged at the connection between the insertion hole 5 and the mounting hole 6, achieving a stable connection of the insulating sleeve 2. A receiving groove 30 is provided inside the first frustum 21. A second frustum 22 that matches the receiving groove 30 is fixedly welded to one end of the sliding rod 15. A first slot 23 that matches the first frustum 21 and the second frustum 22 is provided on one side. A slotted screw is inserted into the first slot 23, which can drive the insertion rod 9 and the threaded rod 10 to rotate. A connecting piece 16 is fixedly welded to the outside of the sliding rod 15. The connecting piece 16 is fixedly connected to the inner wall of the sliding groove 14. A spring 17 is fixedly welded to the outside of the sliding rod 15. The sliding rod 15 is inserted into the sliding groove 14 via a slotted screw. The rack 18 drives the connecting gear 13 to rotate, causing the locking plate 12 to retract, allowing the insertion rod 9 to be smoothly inserted into the mounting hole 6. When the slotted screw disengages, the spring 17 pulls the connecting piece 16, causing the sliding rod 15 to move, releasing the locking plate 12 into the locking groove 8. Two sets of follower grooves 20 are provided on both sides of one end of the sliding groove 14. Follower plates 19 are fixedly welded to both sides of one end of the sliding rod 15, and the follower plates 19 are slidably installed inside the follower grooves 20. To ensure the sliding rod 15 rotates with the insertion rod 9, preventing misalignment between the rack 18 and the connecting gear 13; a rotating groove 24 is provided inside one end of the insulating sleeve 2, and a rotating shaft 25 is rotatably mounted in the middle of the rotating groove 24. A rotating ring 26 is fixedly welded to the outside of the rotating shaft 25, and four sets of connecting grooves 27 are provided on the outside of the rotating ring 26. By rotating the rotating shaft 25, the rotating ring 26 is driven to rotate at the rotating groove 24, so that the connecting grooves 27 are aligned with the insertion hole 5, allowing the insertion rod 9 to be inserted smoothly; a second slot 29 is provided at one end of the rotating shaft 25, and a slotted screw is inserted into the second slot 29 for easy insertion. The rotating shaft 25 is controlled to rotate. A torsion spring 28 is fixedly welded between the rotating ring 26 and the rotating groove 24. The torsion spring 28 is sleeved on the outside of the rotating shaft 25. The torsion spring 28 pulls the rotating ring 26 to rotate. When the rotating shaft 25 is not controlled by external force, the connecting groove 27 intersects with the insertion hole 5, thereby blocking the insertion hole 5 and preventing the outside from arbitrarily contacting the first frustum 21 or the second frustum 22. Several sets of positioning grooves 3 are opened on the outer side of one end of the motor shaft 1. Several sets of positioning plates 4 are fixedly welded inside the insulating sleeve 2. The positioning plates 4 are slidably installed inside the positioning grooves 3, thereby improving the firmness of the connection between the insulating sleeve 2 and the motor shaft 1.

[0023] Working principle: In use, the insulating sleeve 2 is placed on the outside of the motor shaft 1, and the positioning plate 4 is inserted into the positioning groove 3 to connect the insulating sleeve 2. A slotted screw is inserted into the second slot 29 to facilitate the rotation of the rotating shaft 25, so that the insertion hole 5 is connected to the connecting groove 27. The slotted screw pushes the second frustum 22 into the receiving groove 30, and the sliding rod 15 is inserted into the sliding groove 14. The rack 18 drives the connecting gear 13 to rotate, so that the locking plate 12 is retracted, and the insertion rod 9 can be smoothly inserted into the mounting hole 6. Inside, a slotted screw drives the first truncated cone 21 to rotate, threading the threaded rod 10 into the threaded hole 7, thus installing the insulating sleeve 2 and the motor shaft 1. When the slotted screw disengages, the spring 17 pulls the connecting piece 16, causing the sliding rod 15 to move, releasing the locking plate 12 into the locking groove 8, preventing the insertion rod 9 from rotating and causing the threaded rod 10 to disengage from the threaded hole 7. The torsion spring 28 pulls the rotating ring 26 to rotate, and the connecting groove 27 intersects with the insertion hole 5, thereby blocking the insertion hole 5 and preventing external contact with the first truncated cone 21 and the second truncated cone 22.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An insulated motor shaft, comprising a motor shaft (1), characterized in that: An insulating sleeve (2) is fitted on one side of the motor shaft (1). Four sets of insertion holes (5) are provided on one side of the insulating sleeve (2). Mounting holes (6) facing the insertion holes (5) are provided at one end of the motor shaft (1) and on the inner wall of the insulating sleeve (2). An insertion rod (9) is slidably connected inside the insertion holes (5) and the mounting holes (6). A threaded rod (10) is fixedly connected to one end of the insertion rod (9). A threaded hole (7) matching the threaded rod (10) is provided inside the motor shaft (1). A sliding groove (14) is provided inside the insertion rod (9). The sliding groove (14) is slidably connected to a sliding rod (15), and a rack (18) is fixedly connected to both sides of the sliding rod (15). The insertion rod (9) has mounting grooves (11) on both sides that communicate with the sliding groove (14). A locking plate (12) is rotatably connected inside the mounting groove (11). A connecting gear (13) is fixedly connected to one end of the locking plate (12). The connecting gear (13) meshes with the rack (18). Several sets of locking grooves (8) that cooperate with the locking plate (12) are opened on the outside of the mounting hole (6).

2. An insulated motor shaft according to claim 1, characterized in that: One end of the insertion rod (9) is fixedly connected to a first frustum (21), and a receiving groove (30) is provided inside the first frustum (21). One end of the sliding rod (15) is fixedly connected to a second frustum (22) that matches the receiving groove (30). A matching first slot (23) is provided on one side of the first frustum (21) and the second frustum (22). A connecting piece (16) is fixedly connected to the outside of the sliding rod (15). A spring (17) is fixedly connected between the connecting piece (16) and the inner wall of the sliding groove (14). The spring (17) is sleeved on the outside of the sliding rod (15).

3. An insulated motor shaft according to claim 1, characterized in that: Two sets of follower grooves (20) are provided on both sides of one end of the sliding groove (14), and follower plates (19) are fixedly connected on both sides of one end of the sliding rod (15). The follower plates (19) are slidably connected inside the follower grooves (20).

4. An insulated motor shaft according to claim 1, characterized in that: The insulating sleeve (2) has a rotating groove (24) inside one end. A rotating shaft (25) is rotatably connected in the middle of the rotating groove (24). A rotating ring (26) is fixedly connected to the outside of the rotating shaft (25). Four sets of connecting grooves (27) are opened on the outside of the rotating ring (26).

5. An insulated motor shaft according to claim 4, characterized in that: The rotating shaft (25) has a second slot (29) at one end, and a torsion spring (28) is fixedly connected between the rotating ring (26) and the rotating slot (24). The torsion spring (28) is sleeved on the outside of the rotating shaft (25).

6. An insulated motor shaft according to claim 1, characterized in that: The motor shaft (1) has several sets of positioning grooves (3) on the outer side of one end, and several sets of positioning plates (4) are fixedly connected inside the insulating sleeve (2). The positioning plates (4) are slidably connected inside the positioning grooves (3).

Images