Tensioning mandrel for turning seam allowance and end face of high-speed motor
By designing the tensioning mandrel for the stop and end face of the high-speed motor, and utilizing the tapered structure and threaded connection, the problem of coaxiality between the inner diameter of the stator core and the stop of the frame was solved, thereby improving the assembly accuracy and operational stability of the high-speed motor.
Patent Information
- Application Number
- CN202423045062.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing technology cannot guarantee the coaxiality and perpendicularity of the inner diameter of the stator core of a high-speed motor with the mounting stops at both ends of the frame, which leads to deformation of the frame stops and affects the efficiency and vibration of the high-speed motor.
The high-speed motor stop and end face tensioning mandrel is adopted, including components such as machine base, stator mandrel, stator tensioning sleeve, pressure sleeve and unloading sleeve. Through tapered structure and threaded connection, the coaxiality of stator mandrel and machine base is ensured, and the mounting plate and clamp are used for positioning to improve assembly accuracy.
This effectively ensures the coaxiality of the end stops of the motor base with the stator core, prevents deformation of the end stops, improves the efficiency of the high-speed motor, and reduces vibration.
Smart Images
Figure CN223713799U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to high -speed motor processing device technical field, concretely is a kind of high -speed motor stop mouth and the expansion mandrel of end surface. BACKGROUND
[0002] In prior art, the processing scheme of motor is that stator core hot-joint process is carried out after the complete processing of the machine base. The stator core hot-joint process is a kind of assembly process by heating the stator core to expand, so as to facilitate the core to be fitted into the stator frame. The speed of high-speed motor is usually high, so its balance, precision and high-temperature resistance need to be particularly concerned during processing. The rotor of high-speed motor needs higher dynamic balance accuracy, and the material and processing technology of the rotor must ensure its stability under high-speed operation.
[0003] However, the prior art cannot guarantee the coaxiality of the inner diameter of the stator core and the stop mouth installed at both ends of the machine base, and the perpendicularity to the end surface of the machine base, and is prone to cause deformation of the stop mouth of the machine base, affecting the subsequent assembly operation, and thus affecting the efficiency and vibration of the high-speed motor. SUMMARY
[0004] The utility model discloses a kind of high-speed motor stop mouth and the expansion mandrel of end surface, for the stop mouth end surface and stop mouth inner diameter turning of high-speed motor stator, and guarantee the coaxiality of the stop mouth of both ends of machine base and stator core and the form tolerance of the stop mouth of both ends of machine base.
[0005] To achieve the above object, the utility model adopts the technical scheme that provide a kind of high-speed motor stop mouth and the expansion mandrel of end surface, including machine base and mounting disc, the machine base is respectively fitted with stator mandrel, stator expansion sleeve, press sleeve and unloading sleeve, the stator expansion sleeve, press sleeve and unloading sleeve are all connected in the outer end of stator mandrel, the both ends of stator expansion sleeve are respectively pressed and combined press sleeve outer wall and the inner side surface of machine base is set, the stator expansion sleeve is equipped with inner hole, and the inner hole is made into tapered structure, the outer surface of the middle section of stator mandrel is made into tapered structure, and the taper surface of stator mandrel and inner hole is mutually matched, the stator mandrel is slidably connected in the center hole of mounting disc, the outer wall of mounting disc is equipped with sliding hole, the sliding hole is provided with multiple, and multiple the sliding hole is evenly distributed on the surface of mounting disc, multiple the sliding hole is slidably connected with sliding pin, the same end of multiple sliding pin is fixedly connected with clamping plate, and multiple clamping plate and machine base are rotatably connected with connecting plate between near both sides positions.
[0006] Optionally, the end of the stator mandrel is equipped with connecting groove, the number of connecting groove is two, and two connecting grooves are evenly distributed at both ends of the stator mandrel.
[0007] Optionally, the outer wall of the stator core shaft is provided with external threads, and the external threads of the stator core shaft are screwed with nuts, and the number of the nuts is two.
[0008] Optionally, the two nuts are respectively located on the left and right sides of the base, and the nuts are arranged outside the base.
[0009] Optionally, the pressing sleeve and the dismounting sleeve are arranged in a sliding sleeve manner on the outer wall of the stator core shaft, and the two nuts are respectively arranged on the outer sides of the pressing sleeve and the dismounting sleeve.
[0010] Optionally, the dismounting sleeve is provided with a groove on one side, and the inner diameter of the groove is equal to the maximum outer diameter of the middle section of the stator core shaft.
[0011] Optionally, the plurality of sliding pins are respectively provided with mounting caps at the ends away from the base, and the outer diameter of the mounting cap is greater than the width of the sliding hole.
[0012] Compared with the prior art, the utility model has the beneficial effects as follows:
[0013] The utility model discloses the mutual cooperation of stator core shaft, stator expansion sleeve, pressing sleeve, nut, dismounting sleeve and base utilizes the mutual matching of the conical outer surface of the middle part of stator core shaft and the conical inner surface of stator expansion sleeve, can guarantee the coaxial degree of the both ends of base and stator core, and prevent the deformation of the base stop, and can improve the efficiency of high-speed motor and slow down the vibration.
[0014] The utility model discloses the mutual cooperation of mounting disc, sliding hole, sliding pin, clamping plate and connecting plate and connects the stator core shaft sleeve in mounting disc, and through clamping plate cooperation connecting plate is positioned to base, can further improve the coaxial degree of base and stator core in the expansion process. ACCURACY
[0015] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be used to the drawing needed in the embodiment or prior art description briefly introduced, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.
[0016] Figure 1 It is the first view angle partial solid structure schematic diagram of the utility model;
[0017] Figure 2 It is the first view angle solid structure schematic diagram of the utility model;
[0018] Figure 3 It is the second view angle solid structure schematic diagram of the utility model;
[0019] Figure 4 is a sectional three-dimensional structure schematic view of the utility model;
[0020] Figure 5 is a first perspective view of the utility model.
[0021] In the figure: 1, stator core shaft; 2, stator tension sleeve; 3, pressing sleeve; 4, nut; 5, dismounting sleeve; 6, machine base; 7, sliding hole; 8, sliding pin; 9, clamping plate; 10, connecting plate; 11, mounting disc; 12, mounting cap. DETAILED DESCRIPTION
[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and do not limit the utility model.
[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0025] In addition, the terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.
[0026] Reference Figures 1-5The utility model provides a kind of high-speed motor mouth and end face of car expansion core shaft provided in the embodiment of the utility model, which is compared with prior art, and the coaxiality of the mouth of both ends of machine base 6 and stator core and the shape tolerance of the mouth of both ends of machine base 6 are ensured.
[0027] The utility model provides a kind of high-speed motor mouth and end face of car expansion core shaft, which is compared with prior art, and the coaxiality of the mouth of both ends of machine base 6 and stator core and the shape tolerance of the mouth of both ends of machine base 6 are ensured.
[0028] In another embodiment of the utility model, please refer to Figure 3 And Figure 4 The utility model provides a kind of high-speed motor mouth and end face of car expansion core shaft, which is compared with prior art, and the coaxiality of the mouth of both ends of machine base 6 and stator core and the shape tolerance of the mouth of both ends of machine base 6 are ensured.
[0029] In another embodiment of the utility model, please refer to Figures 1 to 3The outer wall of both ends of the stator core shaft 1 is provided with external threads, the outer ends of the two external threads are screwed with nuts 4, the pressing sleeve 3 and the dismounting sleeve 5 are slidably sleeved on the outer wall of the stator core shaft 1, the two nuts 4 are respectively arranged at the positions on the opposite sides of the pressing sleeve 3 and the dismounting sleeve 5, the pressing sleeve 3 compensates the length of the stator expansion sleeve 2, the stator expansion sleeve 2 is opened by screwing the nuts 4 to push the pressing sleeve 3, and the inner hole of the iron core of the machine base 6 is supported; when dismounting, the nuts 4 are loosened, the pressing sleeve 3 is removed, the dismounting sleeve 5 is installed at the other end, and the stator expansion sleeve 2 is loosened from the workpiece by screwing the nuts 4 to push the stator expansion sleeve 2 from the segment.
[0030] In another embodiment of the present application, please refer to Figure 5 The ends of the plurality of sliding pins 8 away from the machine base 6 are threadedly connected with installation caps 12, and the outer diameter of the installation cap 12 is greater than the width of the sliding hole 7; when dismounting, the installation cap 12 is first removed from the outer wall of the sliding pin 8, and then the stator core shaft 1 and the machine base 6 are dismounted from the mounting disc 11.
[0031] Working principle: the outer conical surface of the stator core shaft 1 is processed by turning, and then is ground after completion, and the center holes are drilled at both ends, the turning and grinding are processed according to the center hole as the positioning reference and the processing reference, the inner conical surface of the stator expansion sleeve 2 is ground in cooperation with the stator core shaft 1, the stator expansion sleeve 2 is linearly cut after the cooperative grinding is completed, the stator core shaft 1 is assembled after the linear cutting is completed, and the outer circle of the stator expansion sleeve 2 is ground after the assembly, so as to ensure the coaxiality and the runout of the stator expansion sleeve 2 and the stator core shaft 1; in addition, the pressing sleeve 3 compensates the length of the stator expansion sleeve 2, the stator expansion sleeve 2 is opened by screwing the nuts 4 to push the pressing sleeve 3, and the inner hole of the iron core of the machine base 6 is supported; when dismounting, the nut 4 on one side of the pressing sleeve 3 is loosened, the pressing sleeve 3 is removed, the dismounting sleeve 5 is installed at the other end, the stator expansion sleeve 2 is loosened from the workpiece by screwing the nut 4 on the side to push the stator expansion sleeve 2 from the segment, and the dismounting is convenient.
[0032] In the above process, after the nut 4 on the side of the installation and dismounting sleeve 5 is installed in place, the stator core shaft 1 on the side is sleeved in the middle circular hole of the mounting disc 11, the sliding pin 8 penetrating through the sliding hole 7 is threadedly screwed by using the installation cap 12, the stator core shaft 1 and the machine base 6 are installed on the mounting disc 11, then the stator expansion sleeve 2 is assembled, the stator core shaft 1 and the machine base 6 are pre-calibrated by the mounting disc 11, the coaxiality of the stator core shaft 1 and the machine base 6 in the installation process can be further improved, and the installation difficulty is further reduced.
[0033] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A tensioning mandrel for a high speed motor neck and face, comprising a base (6) and a mounting plate (11), characterised in that: The stator core shaft (1), the stator tension sleeve (2), the pressing sleeve (3) and the dismounting sleeve (5) are sleeved in the base (6) respectively, the stator tension sleeve (2), the pressing sleeve (3) and the dismounting sleeve (5) are all sleeved on the outer end of the stator core shaft (1), the two ends of the stator tension sleeve (2) are pressed against the outer wall of the pressing sleeve (3) and the inner surface of the base (6) respectively, the stator tension sleeve (2) is provided with an inner hole, and the inner hole is made of a tapered structure, the outer surface of the middle section of the stator core shaft (1) is made of a tapered structure, and the tapered surfaces of the stator core shaft (1) and the inner hole are arranged in cooperation, the stator core shaft (1) is sleeved in the center hole of the mounting disc (11), the outer wall of the mounting disc (11) is provided with a plurality of sliding holes (7), the sliding holes (7) are evenly distributed on the surface of the mounting disc (11), the sliding holes (7) are all sleeved with sliding pins (8), the same end of the sliding pins (8) is fixedly connected with clamping plates (9), and the clamping plates (9) are rotatably connected with the base (6) near the both sides.
2. A tensioning mandrel for a high speed motor neck and face ring as claimed in claim 1 wherein: The end of the stator core shaft (1) is provided with a connecting groove, the number of the connecting grooves is two, and the connecting grooves are evenly distributed on the both ends of the stator core shaft (1).
3. A tensioning mandrel for a high speed motor neck and face ring as defined in claim 2 wherein: The outer wall of the stator core shaft (1) is provided with external threads, the external threads of the stator core shaft (1) are rotatably connected with nuts (4), and the number of the nuts (4) is two.
4. A tensioning mandrel for a high speed motor neck and face ring as claimed in claim 3 wherein: The two nuts (4) are respectively located on the left and right sides of the base (6), and the nuts (4) are located outside the base (6).
5. A tensioning mandrel for a high speed motor neck and face ring as defined in claim 4 wherein: the first and second annular segments are formed of a material having a hardness of at least 60 Rockwell C scale. The pressing sleeve (3) and the dismounting sleeve (5) are all slidably sleeved on the outer wall of the stator core shaft (1), and the two nuts (4) are respectively pressed and arranged on the outer sides of the pressing sleeve (3) and the dismounting sleeve (5).
6. A tensioning mandrel for a high speed motor neck and face ring as defined in claim 1 wherein: The dismounting sleeve (5) is provided with a groove on one side, and the inner diameter of the groove is equal to the maximum outer diameter of the middle section of the stator core shaft (1).
7. A tensioning mandrel for a high speed motor neck and face ring as defined in claim 1 wherein: The ends of the plurality of sliding pins (8) away from the base (6) are all threadedly connected with mounting caps (12), and the outer diameter of the mounting cap (12) is greater than the width of the sliding hole (7).