Rotor baffle, rotor assembly and motor

Abstract

The utility model provides a rotor baffle plate, a rotor assembly and a motor, the rotor baffle plate comprises a baffle plate body, the baffle plate body comprises a first split body and a second split body, the first split body and the second split body are respectively provided with a first arc part and a second arc part, and the first split body and the second split body are assembled and butted to form the baffle plate body. The first arc part and the second arc part are spliced to form a shaft hole for the rotor shaft to penetrate through, and the two arc parts surround the rotor shaft in the state that the rotor baffle is arranged on the rotor shaft in a sleeving mode. According to the utility model, because the two arc parts of the rotor baffle plate respectively surround the rotor shaft, the rotor baffle plate can be locked on the rotor shaft, so that the rotor iron core sleeved on the rotor shaft can be axially locked and limited, and compared with the prior art that the rotor iron core is axially locked and limited in various modes, the rotor baffle plate can be locked and limited in the axial direction. The rotor baffle is directly used for axially locking and limiting the rotor iron core, the process is simpler, and the number of used parts is smaller.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to a rotor baffle, a rotor assembly and a motor. Background Art

[0002] The structure of the motor mainly includes a stator, a rotor, a shaft, a casing, and front and rear end covers. The rotor is composed of a rotor core and a magnetic steel. The rotor core is made of laminated silicon steel sheets. The stacking coefficient of the rotor core is ensured by the card points, welding, bolts, rivets, etc. on the silicon steel sheets. At present, the position of the rotor core on the rotor shaft is basically limited by using a welding ring or a locking nut to limit the rotor baffle, thereby achieving fixed position limitation of the rotor core. The use of a locking nut plus a retaining washer or a welding ring and other structural methods to lock the rotor baffle is more complicated and costly in terms of process operation, and occupies the internal space of the motor, which will increase the length of the rotor shaft and increase the cost of the motor.

[0003] Another method is to use an interference fit between the rotor core and the rotor shaft, and cold press or hot fit the rotor core onto the rotor shaft to fix the rotor. However, this process is more complicated and requires special tooling, such as a hydraulic press or a high-temperature box, which increases the assembly time.

[0004] The above-mentioned welding ring or interference fit process also has the problem of not being able to be repeatedly disassembled and assembled, and the fault tolerance rate is very low. In addition, the interference fit method will cause the locking nut of the rotor core to loosen under long-term hot and cold cycles. When the temperature of the motor rotor is too high, it will also cause the rotor interference to be insufficient, causing the silicon steel sheets to become scattered and loose, increasing the motor noise, affecting the motor performance and even damaging the motor components, which is not conducive to later maintenance and has high maintenance costs. Utility Model Content

[0005] Therefore, the utility model provides a rotor baffle, which can solve the technical problem of the complicated axial locking and limiting process of the rotor core on the rotor shaft in the prior art.

[0006] In order to solve the above problems, the utility model provides a rotor baffle, comprising: a baffle body, the baffle body comprising a first split body and a second split body, the first split body is configured with a first arc portion, the second split body is configured with a second arc portion, the first split body and the second split body are assembled and docked to form the baffle body, and the first arc portion and the second arc portion are spliced ​​to form an axial hole for the rotor shaft to pass through, when the rotor baffle is sleeved on the rotor shaft, the first arc portion and the second arc portion respectively embrace the rotor shaft.

[0007] In some embodiments, when the first split body and the second split body are assembled and docked to form the baffle body, the first side of the first split body is detachably connected to the first side of the second split body, there is a gap between the second side of the first split body and the second side of the second split body, and the second side of the first split body is detachably connected to the second side of the second split body via a fastening assembly.

[0008] In some embodiments, a first groove is configured on the first split body, a second groove is configured on the second split body, the fastening assembly includes a bolt and a nut, the nut is fixed in the first groove, and the bolt extends from the second groove to be threadedly connected with the nut.

[0009] In some embodiments, the groove width of the first groove matches the width of the nut, and the nut is clamped in the first groove.

[0010] In some embodiments, a first threaded hole is configured on the first sub-body, a second threaded hole is configured on the second sub-body, and the fastening assembly includes a bolt, and the bolt is threadedly connected in the first threaded hole and the second threaded hole at the same time.

[0011] In some embodiments, the first side of the first split body has a first snap-fit ​​structure, the first side of the second split body has a second snap-fit ​​structure, and the first snap-fit ​​structure and the second snap-fit ​​structure are pushed together along the radial direction of the baffle body to form a snap-fit ​​fit.

[0012] In some embodiments, the first clamping structure includes a first extension body located on the first side of the first split body and a first hook body located on the first extension body, the first hook body including a first upright portion located on the first extension body and a first horizontal portion extending from an end of the first upright portion away from the first extension body to the first side close to the first split body, and the first upright portion is perpendicular to the first horizontal portion; the second clamping structure includes a second extension body located on the first side of the second split body and a second hook body located on the second extension body, the second hook body including a second upright portion located on the second extension body and a second horizontal portion extending from an end of the second upright portion away from the second extension body to the first side close to the second split body, and the second upright portion is perpendicular to the second horizontal portion; the first hook body and the second hook body are pushed together along the radial direction of the baffle body to form a hook fit.

[0013] In some embodiments, the first split body is identical to the second split body.

[0014] The utility model also provides a rotor assembly, including a rotor core, a rotor shaft, a first rotor baffle and a second rotor baffle, at least one of the first rotor baffle and the second rotor baffle is the aforementioned rotor baffle, the rotor core, the first rotor baffle and the second rotor baffle are all mounted on the rotor shaft, and the rotor core is clamped between the first rotor baffle and the second rotor baffle, the rotor shaft has a stop structure, and the end face of the second rotor baffle facing away from the rotor core abuts against the stop structure.

[0015] The utility model also provides a motor, comprising the above-mentioned rotor assembly.

[0016] The utility model provides a rotor baffle, a rotor assembly, and a motor, which have the following beneficial effects:

[0017] When the rotor baffle of the present application is mounted on the rotor shaft, because the first arc portion of the first split body and the second arc portion of the second split body of the rotor baffle respectively form an embrace around the rotor shaft, the rotor baffle can be locked on the rotor shaft, so that the rotor core mounted on the rotor shaft can be axially locked and limited. Compared with the prior art that uses locking nuts plus stop washers, welding rings, interference fit between the rotor core and the rotor shaft, etc. to axially lock and limit the rotor core, the present application directly uses the rotor baffle to axially lock and limit the rotor core, which has a simpler process and uses fewer parts, thereby shortening the processing, manufacturing and assembly time. Moreover, the method of directly using the rotor baffle for locking reduces the number of parts used, so it can also reduce the axial length of the motor, save material costs, and reduce the space of the motor, making it more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] Figure 1 A top view of a rotor assembly according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the first and second split parts of the rotor baffle of the embodiment of the utility model being assembled and docked to form a baffle body;

[0021] Figure 3 A schematic diagram of the mutual misalignment of the first and second split parts of the rotor baffle of the embodiment of the utility model during the process of being assembled and docked to form the baffle body;

[0022] Figure 4 This is a schematic structural diagram of a first split body of a rotor baffle according to an embodiment of the utility model;

[0023] Figure 5 A cross-sectional view of a rotor baffle according to an embodiment of the present utility model;

[0024] Figure 6 for Figure 5 An enlarged schematic diagram of the rotor baffle at point A of an embodiment of the utility model;

[0025] Figure 7 A side view of a rotor baffle according to an embodiment of the present utility model;

[0026] Figure 8 A side view of a rotor assembly according to an embodiment of the present utility model;

[0027] Fig. 9 for Figure 8 An enlarged schematic diagram of the rotor assembly at B of an embodiment of the utility model;

[0028] Fig.10 It is a side view of the rotor assembly of the embodiment of the utility model from another perspective.

[0029] The reference numerals are:

[0030] 1. First sub-body; 2. Second sub-body; 3. First arc portion; 4. Second arc portion; 5. Rotor shaft; 6. Fastening assembly; 61. Bolt; 62. Nut; 7. First groove; 8. Second groove; 9. First hook body; 10. Second hook body; 11. Rotor core; 12. First rotor baffle; 13. Second rotor baffle. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0033] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0034] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0035] See also Figures 1 to 10 As shown, according to an embodiment of the utility model, a rotor baffle is provided, comprising: a baffle body, the baffle body comprising a first split body 1 and a second split body 2, the first split body 1 is configured with a first arc portion 3, the second split body 2 is configured with a second arc portion 4, the first split body 1 and the second split body 2 are assembled and docked to form the baffle body, and the first arc portion 3 and the second arc portion 4 are spliced ​​to form an axial hole for the rotor shaft to pass through, and when the rotor baffle is sleeved on the rotor shaft 5, the first arc portion 3 and the second arc portion 4 respectively embrace the rotor shaft 5.

[0036] In this technical solution, when the rotor baffle is mounted on the rotor shaft 5, because the first arc portion 3 of the first split body 1 and the second arc portion 4 of the second split body 2 of the rotor baffle respectively form an embrace around the rotor shaft 5, the rotor baffle can be locked on the rotor shaft 5, so that the rotor core 11 mounted on the rotor shaft 5 can be axially locked and limited. Compared with the prior art that uses a locking nut plus a stop washer, a welding ring, an interference fit between the rotor core 11 and the rotor shaft 5, etc. to axially lock and limit the rotor core 11, the present application directly uses the rotor baffle to axially lock and limit the rotor core 11, and the process is simpler, and the number of parts used is less, thereby shortening the processing, manufacturing and assembly time. Moreover, the method of directly using the rotor baffle for locking reduces the number of parts used, so it can also reduce the axial length of the motor, save material costs, and reduce the space of the motor, making it more compact. Furthermore, the rotor baffle directly locks the rotor core 11 axially, and there is no need for an interference fit between the rotor core 11 and the rotor shaft 5. In this way, there will be no gap between the two due to long-term hot and cold cycles or excessive temperature of the motor rotor, thereby preventing the rotor punching from loosening.

[0037] See also Figure 1 , Figure 7 and Fig.10 As shown, when the first split body 1 and the second split body 2 are assembled and docked to form the baffle body, the first side of the first split body 1 is detachably connected to the first side of the second split body 2, there is a gap between the second side of the first split body 1 and the second side of the second split body 2, and the second side of the first split body 1 is detachably connected to the second side of the second split body 2 via a fastening assembly 6.

[0038] In this embodiment, see Figure 2As shown, the first side of the first split body 1 is located above the first arc portion 3, and the second side of the first split body 1 is located below the first arc portion 3; the first side of the second split body 2 is located above the second arc portion 4, and the second side of the second split body 2 is located below the second arc portion 4. Because there is a gap between the second side of the first split body 1 and the second side of the second split body 2, when the first split body 1 and the second split body 2 are locked by the fastening assembly 6, the locking force will reduce the gap between the second side of the first split body 1 and the second side of the second split body 2, thereby causing the first split body 1 and the second split body 2 to undergo elastic deformation, and the elastic deformation can ensure that sufficient pre-tightening force is generated to lock the rotor core 11. At the same time, the weight of the fastening assembly 6 can also make up for the weight reduction caused by the gap between the second side of the first split body 1 and the second side of the second split body 2, thereby ensuring the dynamic balance of the rotor baffle. It can be understood that since the first split body 1 and the second split body 2 are detachably assembled together, the rotor baffle of the present application has good replaceability. When any one of the first split body 1 and the second split body 2 is damaged, the damaged split body can be directly replaced without replacing the entire rotor baffle.

[0039] See also Figure 4 , Figure 7 and Fig.10 As shown, a first groove 7 is constructed on the first sub-body 1, and a second groove 8 is constructed on the second sub-body 2. The fastening assembly 6 includes a bolt 61 and a nut 62. The nut 62 is fixed in the first groove 7, and the bolt 61 extends from the second groove 8 to be threadedly connected with the nut 62.

[0040] In this technical solution, a nut 62 is fixed in the first groove 7, and a bolt 61 extends from the second groove 8 to be threadedly connected with the nut 62 so that the first sub-body 1 and the second sub-body 2 are assembled together. It is not necessary to construct threaded holes on the first sub-body 1 and the second sub-body 2, and only two grooves need to be constructed. This makes the processing and manufacturing of the first sub-body 1 and the second sub-body 2 simpler.

[0041] See also Figure 7 As shown, the groove width of the first groove 7 matches the width of the bolt 61 , and the bolt 61 is clamped in the first groove 7 .

[0042] In this embodiment, the nut 62 is generally in the shape of a regular hexagon, and the width of the nut 62 is the distance between a pair of mutually parallel planes on the nut 62. The width of the first groove 7 matches the width of the nut 62, that is, the width of the first groove 7 is the same as the width of the nut 62, so that the nut 62 can be naturally fixed by simply inserting the nut 62 into the first groove 7, thereby ensuring that the nut 62 can be assembled together and locked on the rotor shaft 5 by only twisting the bolt 61 without the need for additional tools to fix the nut 62, so as to axially limit the rotor core 11 or disassemble the first and second sub-bodies 1 and 2, and the nut 62 will not rotate relative to each other in the first groove 7. It should be noted that the first groove 7 can have two notches, one of which is located on the end face of the second side of the first split body 1, and is the same size as the nut 62. The nut 62 can be fixed by being inserted into the notch, and the other notch is located on the outer circumferential surface of the first split body 1; the second groove 8 can have two notches, one of which is located on the end face of the second side of the second split body 2, and the other notch is located on the outer circumferential surface of the second split body 2. As another way, the first groove 7 may also have only one notch, which is located on the outer circumferential surface of the first split body 1, and a first connecting hole is constructed on the end face of the second side of the first split body 1, the first connecting hole is connected to the first groove 7, and the diameter of the first connecting hole is slightly larger than the diameter of the rod of the bolt 61 but smaller than the groove width of the first groove 7, and the nut 62 is inserted into the position where the first connecting hole is connected to the first groove 7; the second groove 8 may also have only one notch, which is located on the outer circumferential surface of the second split body 2, and a second connecting hole is constructed on the end face of the second side of the second split body 2, the second connecting hole is connected to the second groove 8, and the diameter of the second connecting hole is slightly larger than the diameter of the rod of the bolt 61 but smaller than the groove width of the second groove 8.

[0043] As another embodiment, a first threaded hole (not shown in the figure) is constructed on the first sub-body 1, and a second threaded hole (not shown in the figure) is constructed on the second sub-body 2. The fastening assembly 6 includes a bolt 61, and the bolt 61 is threadedly connected in the two threaded holes at the same time.

[0044] In this technical solution, the first sub-body 1 and the second sub-body 2 can be assembled together to lock and fix the rotor core 11 or the first sub-body 1 and the second sub-body 2 can be disassembled only by threading the bolt 61 into the first threaded hole of the first sub-body 1 and the second threaded hole of the second sub-body 2. Although the construction of the threaded hole (the processing process of the threaded wire is more complicated) is more troublesome than the construction of the groove, this is also a feasible method. Among them, the two threaded holes extend from the outer circumferential surface of the corresponding sub-body to the end surface of the second side of each sub-body. Preferably, the rod of the bolt 61 includes a threaded section and a smooth section, the threaded section is at the front end of the rod, and the smooth section is at the rear end of the rod, and the diameter of the smooth section is smaller than the diameter of the threaded section, so that when the bolt 61 is threaded into the first threaded hole and the second threaded hole, it is easier to reduce the distance between the second side of the first sub-body 1 and the second side of the second sub-body 2, so that it is easier to lock the rotor baffle on the rotor shaft 5.

[0045] Specifically, the first side of the first split body 1 has a first clamping structure, the first side of the second split body 2 has a second clamping structure, and the first clamping structure and the second clamping structure are pushed together along the radial direction of the baffle body to form a clamping fit.

[0046] In this embodiment, when the first side of the first sub-body 1 and the first side of the second sub-body 2 are assembled by snap-fitting, the assembly process is simpler and the assembly efficiency is higher. At the same time, the snap-fitting by radial push makes the assembly between the first side of the first sub-body 1 and the first side of the second sub-body 2 more tightly fitted, so that after tightening the bolt 61 slightly, the entire rotor baffle can be locked on the rotor shaft 5. Of course, the first side of the first sub-body 1 and the first side of the second sub-body 2 can also have a spacing like the second side of the first sub-body 1 and the second side of the second sub-body 2, and then be detachably connected by the fastening assembly 6.

[0047] See also Figures 4 to 6 As shown, the first clamping structure includes a first extension body located on the first side of the first split body 1 and a first hook body 9 located on the first extension body, the first hook body 9 includes a first upright portion located on the first extension body and a first horizontal portion extending from one end of the first upright portion away from the first extension body to the first side close to the first split body 1, and the first upright portion is perpendicular to the first horizontal portion; the second clamping structure includes a second extension body located on the first side of the second split body 2 and a second hook body 10 located on the second extension body, the second hook body 10 includes a second upright portion located on the second extension body and a second horizontal portion extending from one end of the second upright portion away from the second extension body to the first side close to the second split body 2, and the second upright portion is perpendicular to the second horizontal portion; the first hook body 9 and the second hook body 10 are pushed together along the radial direction of the baffle body to form a hook fit.

[0048] In this technical solution, for the assembly of the first side of the first split body 1 and the first side of the second split body 2, the first split body 1 and the second split body 2 can be displaced, and the first hook body 9 and the second hook body 10 are just offset in the radial direction, and then one of the split bodies is translated radially to make the two hook bodies hook each other. After being translated into place, that is, when the first hook body 9 and the second hook body 10 are completely hooked together, the first side of the first split body 1 and the first side of the second split body 2 can be assembled. This assembly process can also be called the radial push-fit of the first split body 1 and the second split body 2. Since both hook bodies have an upright portion and a horizontal portion, the hooking cooperation of the first hook body 9 and the second hook body 10 will make the first side of the first split body 1 and the second split body 2 more firmly connected. Preferably, the first upright portion and the first horizontal portion are both the same width as the first side of the first split body 1; the second upright portion and the second horizontal portion are both the same width as the first side of the second split body 2. After the first side of the first sub-body 1 and the second sub-body 2 is assembled, that is, after the rotor baffle is pre-installed, do not tighten the bolts 61 first, but put the rotor baffle on the rotor shaft 5, at this time, the shaft hole formed by the splicing of the two arc portions and the rotor shaft 5 are clearance fit or transition fit. After the rotor baffle abuts against the end face of the rotor core 11, tighten the bolts 61 to reduce the distance between the second side of the first sub-body 1 and the second sub-body 2, then the shaft hole formed by the splicing of the first arc portion 3 and the second arc portion 4 will form an interference fit with the rotor shaft 5, so that the rotor baffle is locked on the rotor shaft 5, and then the rotor core 11 is axially locked.

[0049] It should also be noted that the first sub-body 1 and the second sub-body 2 of the rotor baffle of the present application are exactly the same, that is, the shape and size of the first sub-body 1 are the same as the shape and size of the second sub-body 2, the shape and size of the first groove 7 are the same as the shape and size of the second groove 8, the shape and size of the first threaded hole are the same as the shape and size of the second threaded hole, and the shape and size of the first clamping structure are the same as the shape and size of the second clamping structure, which makes the processing and manufacturing of the sub-body of the present application simpler, and only one set of molds needs to be opened. At the same time, since the fastening assembly 6 needs to be set in the first sub-body 1 and the second sub-body 2 of the rotor baffle of the present application, the rotor baffle of the present application is thicker than the ordinary rotor baffle in the prior art. It can also be understood that the screw head of the bolt 61 is generally circular, and its diameter is basically the same as the width of the nut 62. When the first split body 1 and the second split body 2 are exactly the same, that is, the first groove 7 and the second groove 8 are the same, if the width of the nut 62 is the same as the groove width of the first groove 7 and is inserted into the first groove 7, the screw head of the bolt 61 will also be the same as the groove width of the second groove 8, but because the screw head is circular, the bolt 61 can be rotated in the second groove 8 through the hexagon socket.

[0050] The utility model also provides a rotor assembly, including a rotor core 11, a rotor shaft 5, a first rotor baffle 12 and a second rotor baffle 13. The first rotor baffle 12 and the second rotor baffle 13 can both be the rotor baffles mentioned above in the present application, or the first rotor baffle 12 is the rotor baffle mentioned above in the present application, and the second rotor baffle 13 is an existing common rotor baffle. The rotor core 11, the first rotor baffle 12 and the second rotor baffle 13 are all mounted on the rotor shaft 5, the rotor core 11 is clamped between the first rotor baffle 12 and the second rotor baffle 13, the rotor shaft 5 has a stopper structure, and the end face of the second rotor baffle 13 facing away from the rotor core 11 abuts against the stopper structure.

[0051] In this technical solution, the rotor core 11 is formed by stacking a plurality of rotor punchings, each of which has a protrusion. After the rotor punchings are stacked to form the rotor core 11, each protrusion forms a key, and a keyway is constructed on the rotor shaft 5. When the rotor core 11 is sleeved on the rotor shaft 5, the key on the rotor core 11 is inserted into the keyway, so that the circumferential rotation of the rotor core 11 along the rotor shaft 5 can be limited. Taking the first rotor baffle 12 as the aforementioned rotor baffle of the present application and the second rotor baffle 13 as an existing common rotor baffle as an example, the specific assembly process of the rotor assembly is: the second rotor baffle 13, the rotor core 11 and the first rotor baffle 12 are sequentially mounted on the rotor shaft 5, wherein the second rotor baffle 13 abuts against the stopper structure, the rotor core 11 abuts against the second rotor baffle 13, and the first rotor baffle 12 abuts against the rotor core 11, and after tightening the bolt 61, the first rotor baffle 12 can be locked on the rotor shaft 5 to axially limit the rotor core 11. By simultaneously limiting the circumferential and axial directions of the rotor core 11, the rotor core 11 is firmly locked on the rotor shaft 5.

[0052] Finally, it should be noted that the first rotor baffle 12 and the second rotor baffle 13 are both the rotor baffles mentioned above in the present application, which can better lock the rotor core 11. However, the rotor baffle of the present application is more complicated than the ordinary rotor baffle process, and its cost is bound to be high. Therefore, from the perspective of cost saving and economic benefits, the present application prefers two rotor baffles, one is the rotor baffle of the present application, and the other is an ordinary rotor baffle solution in the prior art.

[0053] The utility model also provides a motor, comprising the above-mentioned rotor assembly.

[0054] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. The above are only preferred implementations of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention, and these improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A rotor baffle, characterized in that: The baffle body comprises a first split body (1) and a second split body (2); the first split body (1) is provided with a first arc portion (3); the second split body (2) is provided with a second arc portion (4); the first split body (1) and the second split body (2) are assembled and butted to form the baffle body; the first arc portion (3) and the second arc portion (4) are spliced ​​to form an axial hole for a rotor shaft to pass through; when the rotor baffle is sleeved on the rotor shaft (5), the first arc portion (3) and the second arc portion (4) respectively embrace the rotor shaft (5).

2. The rotor baffle according to claim 1, characterized in that: When the first split body (1) and the second split body (2) are assembled and docked to form the baffle body, the first side of the first split body (1) is detachably connected to the first side of the second split body (2), a distance is provided between the second side of the first split body (1) and the second side of the second split body (2), and the second side of the first split body (1) is detachably connected to the second side of the second split body (2) via a fastening assembly (6).

3. The rotor baffle according to claim 2, characterized in that: The first sub-body (1) is provided with a first groove (7), and the second sub-body (2) is provided with a second groove (8). The fastening assembly (6) comprises a bolt (61) and a nut (62), wherein the nut (62) is fixed in the first groove (7), and the bolt (61) extends from the second groove (8) to be threadedly connected with the nut (62).

4. The rotor baffle according to claim 3, characterized in that: The groove width of the first groove (7) matches the width of the nut (62), and the nut (62) is clamped in the first groove (7).

5. The rotor baffle according to claim 2, characterized in that: The first sub-body (1) is provided with a first threaded hole, and the second sub-body (2) is provided with a second threaded hole. The fastening assembly (6) comprises a bolt (61), and the bolt (61) is threadedly connected in the first threaded hole and the second threaded hole at the same time.

6. The rotor baffle according to claim 2, characterized in that: The first side of the first split body (1) has a first snap-fitting structure, and the first side of the second split body (2) has a second snap-fitting structure. The first snap-fitting structure and the second snap-fitting structure are pushed together along the radial direction of the baffle body to form a snap-fitting fit.

7. The rotor baffle according to claim 6, characterized in that: The first clamping structure includes a first extension body located on the first side of the first sub-body (1) and a first hook body (9) located on the first extension body, the first hook body (9) including a first upright portion located on the first extension body and a first horizontal portion extending from an end of the first upright portion away from the first extension body to the first side close to the first sub-body (1), the first upright portion is perpendicular to the first horizontal portion; the second clamping structure includes a second extension body located on the first side of the second sub-body (2) and a second hook body (10) located on the second extension body, the second hook body (10) including a second upright portion located on the second extension body and a second horizontal portion extending from an end of the second upright portion away from the second extension body to the first side close to the second sub-body (2), the second upright portion is perpendicular to the second horizontal portion; the first hook body (9) and the second hook body (10) are pushed together along the radial direction of the baffle body to form a hook fit.

8. The rotor baffle according to claim 1, characterized in that: The first split body (1) is completely identical to the second split body (2).

9. A rotor assembly, comprising a rotor core (11), a rotor shaft (5), a first rotor baffle (12) and a second rotor baffle (13), characterized in that: At least one of the first rotor baffle (12) and the second rotor baffle (13) is the rotor baffle according to any one of claims 1 to 8, the rotor core (11), the first rotor baffle (12) and the second rotor baffle (13) are all mounted on the rotor shaft (5), and the rotor core (11) is clamped between the first rotor baffle (12) and the second rotor baffle (13), the rotor shaft (5) has a stop structure, and an end face of the second rotor baffle (13) facing away from the rotor core (11) abuts against the stop structure.

10. A motor, characterized in that: Includes the rotor assembly as claimed in claim 9.

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