技术领域technical field
本发明涉及电动机领域，特别是涉及一种用于屏蔽泵的复合结构转子及电机。The invention relates to the field of electric motors, in particular to a composite structure rotor and a motor for canned pumps.
背景技术Background technique
屏蔽泵具有介质无泄漏的特点，因而在石油化工、生物制药等行业得到了广泛的应用。屏蔽泵用电机作为屏蔽泵的主要动力来源，其运行性能直接影响屏蔽泵的工作性能。区别于传统的电动机，屏蔽泵用电机常常采用特殊的设计方法特殊、可靠的屏蔽手段，其工作工况也较为复杂和极端。The canned pump has the characteristics of no leakage of the medium, so it has been widely used in petrochemical, biopharmaceutical and other industries. The canned pump uses the motor as the main power source of the canned pump, and its operating performance directly affects the working performance of the canned pump. Different from traditional motors, shielded pump motors often use special design methods, special and reliable shielding methods, and their working conditions are also more complicated and extreme.
转子作为屏蔽泵用电机的一个重要部件，通常由转子屏蔽套、转子铁芯、转子绕组和转轴组成，当定子绕组通入电源并在电机气隙内产生空间旋转磁场时，转子绕组会产生转子感应电动势以及转子感应电流，转子感应电流产生转子磁场，转子磁场与定子绕组产生的空间旋转磁场互相作用，便在转轴上产生电磁转矩，进而驱动负载。中国专利文献（授权公告号：CN206211800U，授权公告日：2017年5月31日）公开了一种铸铜转子，铸铜转子芯主体、两铸铜风扇叶片装置在转子轴的带动下一起旋转，外部空气由进风铸铜风扇叶片装置进入，穿过铸铜转子芯主体的多个导风槽时，将电机内部的热量随排风铸铜风扇叶片装置排出，较好地解决了电机自身散热问题。中国专利文献（授权公告号：CN105119406B，授权公告日：2018年6月5日）公开了一种双笼转子冲片、双笼转子及电机，所述专利具有圆环形结构的双笼转子冲片上，且沿周向设置有多个转子槽，所述多个转子槽为双笼凸型槽、双笼梯形槽和双笼刀型槽中任意两种或三种槽型结构的组合，降低了电机的启动电流和槽漏抗，提升了电机的集肤效应和转速，增强了电机的启动能力和运行稳定性。然而，双笼转子虽然很大程度上提高了电机的起动能力，然而会导致电机运行时功率因数的降低；采用铸铜转子虽然提高了电机的效率，然后成本增加也限制了铸铜转子在大型电机中的应用。As an important part of the motor for shielded pumps, the rotor is usually composed of a rotor shield sleeve, a rotor core, a rotor winding and a rotating shaft. When the stator winding is connected to a power supply and generates a spatial rotating magnetic field in the air gap of the motor, the rotor winding will generate a rotor The induced electromotive force and the rotor induced current, the rotor induced current generates the rotor magnetic field, and the rotor magnetic field interacts with the space rotating magnetic field generated by the stator winding to generate electromagnetic torque on the rotating shaft, thereby driving the load. Chinese patent document (authorized announcement number: CN206211800U, authorized announcement date: May 31, 2017) discloses a cast copper rotor, the main body of the cast copper rotor core, and two cast copper fan blades rotate together under the drive of the rotor shaft. The external air enters through the air-intake cast copper fan blade device, and when it passes through the multiple air guide grooves of the main body of the cast copper rotor core, the heat inside the motor is discharged with the exhaust air cast copper fan blade device, which better solves the heat dissipation of the motor itself question. Chinese patent literature (authorized announcement number: CN105119406B, authorized announcement date: June 5, 2018) discloses a double-cage rotor punch, a double-cage rotor and a motor. The patent has a double-cage rotor punch with a circular structure. On the sheet, and along the circumferential direction, there are multiple rotor slots. The multiple rotor slots are a combination of any two or three slot structures among double-cage convex slots, double-cage trapezoidal slots, and double-cage knife-shaped slots, reducing the The starting current and slot leakage reactance of the motor are improved, the skin effect and speed of the motor are improved, and the starting ability and operation stability of the motor are enhanced. However, although the double-cage rotor greatly improves the starting ability of the motor, it will lead to a reduction in the power factor of the motor during operation; although the use of cast copper rotors improves the efficiency of the motor, the increase in cost also limits the use of cast copper rotors in large application in motors.
发明内容Contents of the invention
本发明的目的是为了满足屏蔽泵起动、运行的需要，进一步提高电机的起动能力、提高电机效率，同时降低起动电流、降低转子温升，尤其是针对屏蔽泵设计一种用于屏蔽泵的复合结构转子及电机。The purpose of the present invention is to meet the needs of starting and running of the canned pump, further improve the starting ability of the motor, improve the efficiency of the motor, and at the same time reduce the starting current and reduce the temperature rise of the rotor, especially to design a compound pump for the canned pump Structural rotor and motor.
本发明给出的技术方案是：The technical scheme provided by the present invention is:
一种用于屏蔽泵的复合结构转子，所述转子铁芯上设有转子上笼导条、转子下笼导条，所述转子上笼导条的两端设有转子上笼端环，所述转子下笼导条两端分别设有转子下笼端环，所述转子上笼端环，转子下笼端环之间设有转子上下笼间导热环，所述转子铁芯内部设有转轴。A rotor with a composite structure for shielded pumps, the rotor core is provided with a rotor upper cage guide bar and a rotor lower cage guide bar, and the two ends of the rotor upper cage guide bar are provided with rotor upper cage end rings, so that The two ends of the rotor lower cage guide bar are respectively provided with rotor lower cage end rings, the rotor upper cage end ring, and the rotor lower cage end rings are provided with rotor upper and lower cage heat conduction rings, and the rotor iron core is equipped with a rotating shaft .
进一步地，所述转子下笼导条截面大于转子上笼导条，转子上笼导条材料电阻率大于转子下笼导条材料电阻率。Further, the section of the lower rotor cage bar is larger than that of the rotor upper cage bar, and the resistivity of the material resistivity of the rotor upper cage bar is greater than that of the rotor lower cage bar.
进一步地，所述转子上笼导条为铝、转子下笼导条为铜。Further, the guide bars of the upper rotor cage are made of aluminum, and the guide bars of the lower rotor cage are made of copper.
进一步地，所述转子上笼端环外圈设有转子加固环。Further, the outer ring of the upper cage end ring of the rotor is provided with a rotor reinforcement ring.
进一步地，所述转子上笼端环，转子下笼端环外侧面设有转子屏蔽套端盖，其中部制有转轴孔，所述转子屏蔽套端盖外圈设有转子屏蔽套，转子屏蔽套和转子屏蔽套端盖将转子铁芯、转子上笼导条、转子下笼导条、转子上笼端环、转子下笼端环、转子加固环、转子上下笼间导热环包裹于其内部。Further, the rotor upper cage end ring and the rotor lower cage end ring are provided with a rotor shielding sleeve end cover, the middle part of which is formed with a shaft hole, and the outer ring of the rotor shielding sleeve end cover is provided with a rotor shielding sleeve, and the rotor shielding sleeve Sleeve and rotor shielding sleeve end cover wraps the rotor core, rotor upper cage guide bar, rotor lower cage guide bar, rotor upper cage end ring, rotor lower cage end ring, rotor reinforcement ring, and rotor upper and lower cage heat transfer rings inside .
进一步地，所述转子铁芯为由转子铁芯叠片叠压而成或不采用叠片叠压工艺，直接由整块软磁性材料加工出所需要的转子槽。Further, the rotor core is formed by lamination of rotor iron core laminations, or the required rotor slots are directly processed from the whole piece of soft magnetic material without using lamination lamination process.
进一步地，所述转子加固环、转子上笼端环、转子下笼端环、转子上下笼间导热环沿所述转子铁心长度方向的长度相同。Further, the lengths of the rotor reinforcement ring, the rotor upper cage end ring, the rotor lower cage end ring, and the heat conduction ring between the upper and lower rotor cages along the length direction of the rotor core are the same.
一种电机，所述电机含有上述的转子。A motor, the motor includes the above-mentioned rotor.
与现有技术相比，本发明的有益效果是：提供一种用于屏蔽泵的复合结构转子及电机，所述复合结构转子设置为上下笼结构，上笼材料为铝，提高电机的起动能力、降低起动电流、降低电机成本；下笼材料为铜，改善电机运行能力、提高电机的运行效率、降低损耗很温升；所述复合结构转子设置有转子上下笼间导热环，益于转子热量传递；所述复合转子结构设置有转子加固环，益于提高机械强度；所述电机采用复合结构转子，提升了屏蔽泵的性能。Compared with the prior art, the beneficial effect of the present invention is to provide a composite structure rotor and motor for canned pumps, the composite structure rotor is set as an upper and lower cage structure, and the material of the upper cage is aluminum, so as to improve the starting ability of the motor , reduce the starting current and reduce the cost of the motor; the material of the lower cage is copper, which improves the motor's operating capacity, improves the operating efficiency of the motor, and reduces the loss and temperature rise; the composite structure rotor is provided with a heat conduction ring between the upper and lower cages of the rotor, which is beneficial to the heat of the rotor Transmission; the composite rotor structure is provided with a rotor reinforcement ring, which is beneficial to improve the mechanical strength; the motor adopts a composite structure rotor, which improves the performance of the canned pump.
附图说明Description of drawings
图1为本发明一种用于屏蔽泵的复合结构转子的结构剖面示意图；Fig. 1 is a structural cross-sectional schematic view of a rotor with a composite structure for a canned pump of the present invention;
图2为附图1的A部放大示意图；Fig. 2 is the enlarged schematic diagram of part A of accompanying drawing 1;
图3为本发明一种用于屏蔽泵的复合结构转子的转子上笼、转子下笼、上下笼端环、上下笼间导热环、转子加固环的结构示意图；Fig. 3 is a structural schematic diagram of the rotor upper cage, the rotor lower cage, the upper and lower cage end rings, the heat conduction ring between the upper and lower cages, and the rotor reinforcement ring of a rotor with a composite structure for a canned pump according to the present invention;
附图4为本发明一种用于屏蔽泵的复合结构转子的转子铁芯结构示意图。Accompanying drawing 4 is the structure schematic diagram of the rotor core of a composite structure rotor used in canned pumps according to the present invention.
附图中：1、转子屏蔽套，2、转子加固环，3、转子上笼导条，4、转子上笼端环，5、转子上下笼间导热环，6、转子下笼导条，7、转子下笼端环，8、转子屏蔽套端盖，9、转轴，10、转子铁芯，11、转子铁芯叠片，12、转子上笼导条槽，13、转子下笼导条槽。In the attached drawings: 1. Rotor shielding sleeve, 2. Rotor reinforcement ring, 3. Rotor upper cage guide bar, 4. Rotor upper cage end ring, 5. Heat conduction ring between rotor upper and lower cages, 6. Rotor lower cage guide bar, 7 . Rotor lower cage end ring, 8. Rotor shield sleeve end cover, 9. Rotor shaft, 10. Rotor core, 11. Rotor core laminations, 12. Rotor upper cage guide bar groove, 13. Rotor lower cage guide bar groove .
具体实施方式Detailed ways
下面结合说明书附图和实施例对本发明做更详细地说明。The present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.
一种用于屏蔽泵的复合结构转子，所述转子铁芯10的壁厚圆周外侧一圈开设有若干转子上笼导条槽12，所述转子上笼导条槽12贯穿转子铁芯长度方向，其内圈开设有若干转子下笼导条槽13，其贯穿转子铁芯长度方向。所述转子铁芯10外部设有屏蔽装置，所述屏蔽装置包括转子屏蔽套1、转子加固环2、转子上笼导条3、转子上笼端环4、转子上下笼间导热环5、转子下笼导条6、转子下笼端环7、转子屏蔽套端盖8。所述转子上笼导条3、转子下笼导条6分别穿入转子上笼导条槽12、转子下笼导条槽13，所述转子上笼端环4，转子下笼端环7上分别制有与转子上笼导条3、转子下笼导条6相匹配的孔，所述转子上笼导条3、转子下笼导条6两端分别插入转子上笼端环4，转子下笼端环7对应的孔上固定，所述转子上笼端环4与转子下笼端环7之间设有转子上下笼间导热环5，所述转子上笼端环4外圈设有转子加固环2。所述转子上笼端环4，转子下笼端环7外侧面设有转子屏蔽套端盖8，所述转子屏蔽套端盖8为覆盖转子加固环2、转子上笼导条3、转子上笼端环4、转子上下笼间导热环5、转子下笼导条6、转子下笼端环7及转子铁芯10端部的封盖，其中部制有转轴孔，所述转子屏蔽套端盖8外圈设有转子屏蔽套1，转子屏蔽套1和转子屏蔽套端盖8将转子铁芯10、转子上笼导条3、转子下笼导条6、转子上笼端环4、转子下笼端环7、转子加固环2、转子上下笼间导热环5包裹于其内部。A rotor with a composite structure for shielded pumps, the rotor iron core 10 is provided with a number of rotor upper cage guide bar grooves 12 on the outer circle of the wall thickness circumference, and the rotor upper cage guide bar grooves 12 run through the length direction of the rotor iron core , the inner ring is provided with a plurality of rotor lower cage guide bar grooves 13, which run through the length direction of the rotor core. The rotor core 10 is provided with a shielding device outside, and the shielding device includes a rotor shielding sleeve 1, a rotor reinforcement ring 2, a rotor upper cage guide bar 3, a rotor upper cage end ring 4, a rotor upper and lower cage heat conducting ring 5, a rotor Lower cage guide bar 6, rotor lower cage end ring 7, rotor shielding sleeve end cover 8. The rotor upper cage guide bar 3 and the rotor lower cage guide bar 6 penetrate into the rotor upper cage guide bar groove 12 and the rotor lower cage guide bar groove 13 respectively, the rotor upper cage end ring 4 and the rotor lower cage end ring 7 are Holes matching the rotor upper cage guide bar 3 and the rotor lower cage guide bar 6 are formed respectively, the two ends of the rotor upper cage guide bar 3 and the rotor lower cage guide bar 6 are respectively inserted into the rotor upper cage end ring 4, and The cage end ring 7 is fixed on the corresponding hole, the rotor upper cage end ring 4 and the rotor lower cage end ring 7 are provided with a heat conducting ring 5 between the upper and lower rotor cages, and the outer ring of the rotor upper cage end ring 4 is provided with a rotor Reinforcement ring2. The rotor upper cage end ring 4 and the outer surface of the rotor lower cage end ring 7 are provided with a rotor shielding sleeve end cover 8, and the rotor shielding sleeve end cover 8 covers the rotor reinforcement ring 2, the rotor upper cage guide bar 3, and the rotor upper cage end cover 8. The cage end ring 4, the heat conducting ring 5 between the upper and lower rotor cages, the rotor lower cage guide bar 6, the rotor lower cage end ring 7 and the cover at the end of the rotor core 10, the middle part is formed with a shaft hole, and the rotor shield sleeve end The outer ring of the cover 8 is provided with a rotor shielding sleeve 1, and the rotor shielding sleeve 1 and the end cover 8 of the rotor shielding sleeve connect the rotor core 10, the rotor upper cage guide bar 3, the rotor lower cage guide bar 6, the rotor upper cage end ring 4, the rotor The lower cage end ring 7, the rotor reinforcement ring 2, and the heat conducting ring 5 between the upper and lower rotor cages are wrapped inside.
所述转子铁芯10为由转子铁芯叠片11叠压而成或不采用叠片叠压工艺，直接由整块软磁性材料加工出所需要的转子槽。The rotor core 10 is formed by laminated rotor core laminations 11 or the required rotor slots are directly processed from the whole piece of soft magnetic material without using lamination lamination process.
所述转子加固环2、转子上笼端环4、转子下笼端环7、转子上下笼间导热环5沿所述转子铁心长度方向的长度相同。The rotor reinforcement ring 2 , the rotor upper cage end ring 4 , the rotor lower cage end ring 7 , and the rotor upper and lower cage heat conducting rings 5 have the same length along the length direction of the rotor core.
转子下笼导条6截面大于转子上笼导条3，转子上笼导条6材料电阻率大于转子下笼导条3材料电阻率，所述转子下笼导条6及转子上笼导条3不能导磁。The section of the lower rotor cage bar 6 is larger than that of the rotor upper cage bar 3, the material resistivity of the rotor upper cage bar 6 is greater than the material resistivity of the rotor lower cage bar 3, the rotor lower cage bar 6 and the rotor upper cage bar 3 Not magnetically conductive.
转子上笼端环4、转子下笼端环7之间具有转子上下笼间导热环5。Between the rotor upper cage end ring 4 and the rotor lower cage end ring 7 there is a heat conduction ring 5 between the upper and lower rotor cages.
一种用于屏蔽泵的复合结构转子及电机。所述复合结构转子设置有转子铁心、转子屏蔽套、转子加固环、转子上下笼条、转子上下端环、转子上下笼间导热环、转轴，所述转子铁心为圆柱形结构，沿周向设置有多个转子槽，槽内放置有转子导条，转子导条与端环形成上笼和下笼双笼结构。所述转子导条可以通过向转子槽内铸入液态金属冷却形成，也可直接采用截面与转子槽相同的金属棒。所述复合结构转子的上笼为起动笼，上笼导条设置为铝，下笼为工作笼，下笼导条设置为铜。所述上笼的端部设置有转子上笼端环，材料为铝，下笼的端部设置有转子下笼端环，材料为铜，两个端环直接设置有转子上下笼导热环，转子上笼端环外设置有转子加固环。所述复合结构转子外侧设置有转子屏蔽套，具有所述复合结构转子的电机启动能力提高、起动电流降低、效率提高，同时转子的散热条件得到改善，扩宽了屏蔽泵的应用范围。A composite structure rotor and motor for canned pumps. The composite structure rotor is provided with a rotor core, a rotor shielding sleeve, a rotor reinforcement ring, rotor upper and lower cage bars, a rotor upper and lower end ring, a heat conducting ring between the rotor upper and lower cages, and a rotating shaft. The rotor core is a cylindrical structure and is arranged along the circumferential direction There are multiple rotor slots, and rotor guide bars are placed in the slots, and the rotor guide bars and end rings form an upper cage and a lower cage double cage structure. The rotor guide bar can be formed by casting liquid metal into the rotor slot for cooling, or directly adopt a metal rod with the same section as the rotor slot. The upper cage of the composite structure rotor is a starting cage, the guide bars of the upper cage are made of aluminum, the lower cage is a working cage, and the guide bars of the lower cage are made of copper. The end of the upper cage is provided with an end ring of the upper cage of the rotor, which is made of aluminum, and the end of the lower cage is provided with an end ring of the lower cage of the rotor, which is made of copper. A rotor reinforcing ring is arranged outside the end ring of the upper cage. The outer side of the composite structure rotor is provided with a rotor shielding sleeve. The motor with the composite structure rotor has improved starting capability, reduced starting current, and improved efficiency. At the same time, the heat dissipation condition of the rotor is improved, which broadens the application range of the shielded pump.
实施例1Example 1
附图所示，为本发明一种用于屏蔽泵的复合结构转子及电机一实施例的结构剖面示意图、转子上笼、转子下笼、上下笼端环、上下笼间导热环、转子加固环的结构示意图、转子铁芯结构示意图，所述复合结构转子设置有转子屏蔽套1、转子加固环2、转子上笼导条3、转子上笼端环4、转子上下笼间导热环5、转子下笼导条6、转子下笼端环7、转子屏蔽套端盖8、转轴9、转子铁芯10、转子铁芯叠片11、转子上笼导条槽12、转子下笼导条槽13。As shown in the accompanying drawings, it is a structural cross-sectional schematic diagram of an embodiment of a composite structure rotor and motor for canned pumps, the rotor upper cage, the rotor lower cage, the upper and lower cage end rings, the heat conducting ring between the upper and lower cages, and the rotor reinforcement ring. Schematic diagram of the structure and schematic diagram of the rotor core structure. The composite structure rotor is provided with a rotor shielding sleeve 1, a rotor reinforcement ring 2, a rotor upper cage guide bar 3, a rotor upper cage end ring 4, a rotor upper and lower cage heat conducting ring 5, and a rotor Lower cage guide bar 6, rotor lower cage end ring 7, rotor shield cover end cover 8, rotating shaft 9, rotor core 10, rotor core lamination 11, rotor upper cage guide bar slot 12, rotor lower cage guide bar slot 13 .
参见附图3，本发明所设置的转子铁芯10由转子铁芯叠片11叠压而成，具有减少铁芯损耗的作用，所述转子铁芯设置有转子上笼导条槽12、转子下笼导条槽13，所述槽的数量、面积、位置对电机的性能有显著的影响，可以根据与实际的使用要求、功率等级、材料特性设计合适的槽形、数量及所在位置。如果将所述转子铁芯应用于同步电机，也可不采用叠片叠压工艺，直接由整块软磁性材料加工出所需要的转子槽即可。所述转子铁芯的制造、生产工艺为可以为现有技术，只要其与设计方案一致则可。Referring to accompanying drawing 3, the rotor iron core 10 provided by the present invention is formed by stacking rotor iron core laminations 11, which has the function of reducing iron core loss. The lower cage guide bar groove 13, the number, area and position of the grooves have a significant impact on the performance of the motor, and the appropriate groove shape, quantity and location can be designed according to actual use requirements, power levels, and material properties. If the rotor core is applied to a synchronous motor, the required rotor slots can be directly processed from a whole piece of soft magnetic material without using lamination lamination process. The manufacturing and production process of the rotor core can be the prior art, as long as it is consistent with the design scheme.
参见附图2，转子上笼导条3的截面形状与转子上笼导条槽12的截面形状一致，转子下笼导条6的截面形状与转子下笼导条槽13的截面形状一致，为了保证所述导条能顺利的放入所述槽内，所述导条的数量需要与所述槽的数量一致，所述导条的截面形状需与所述槽的截面形状为相似形状，且所述导条的截面面积稍微小于所述槽的截面面积，但是两者的面积差值不能过大，否则会影响电机的运行性能。所述导条的长度要略大于转子铁芯10的长度与两端端环的长度之和，以确保装配的顺利进行。Referring to accompanying drawing 2, the cross-sectional shape of the upper rotor cage guide bar 3 is consistent with the cross-sectional shape of the rotor upper cage guide bar groove 12, and the cross-sectional shape of the rotor lower cage guide bar 6 is consistent with the cross-sectional shape of the rotor lower cage guide bar groove 13. To ensure that the guide bar can be smoothly put into the groove, the number of the guide bar needs to be consistent with the number of the groove, the cross-sectional shape of the guide bar needs to be similar to the cross-sectional shape of the groove, and The cross-sectional area of the guide bar is slightly smaller than the cross-sectional area of the groove, but the difference in area between the two should not be too large, otherwise the running performance of the motor will be affected. The length of the guide bar is slightly greater than the sum of the length of the rotor core 10 and the lengths of the rings at both ends, so as to ensure smooth assembly.
实施过程中，将转子上笼导条3、转子下笼导条6分别由转子铁芯10的一端，沿着转子上笼导条槽12、转子下笼导条槽13的入口缓慢插入上笼导条槽12、转子下笼导条槽13槽槽内。将转子上笼端环4、转子下笼端环7适当干燥热处理，使其体积稍微膨胀，将所述导条伸出转子铁芯10的部分分别插入转子上笼端环4、转子下笼端环7预留的空槽内，所述端环沿圆周方向设置有空槽，所述的空槽截面形状、面积与所述导条的截面形状、面积相等，其目的是确保所述导条伸出转子铁芯10的部分能有与所述端环结合紧密；所述干燥热处理的目的在于使所述端环适当热膨胀，益于将所述导条伸出转子铁芯10的部分插入端环空槽。适当调整两端转子上笼端环4、转子下笼端环7、转子上笼导条3、转子下笼导条6的相对位置，确保：During the implementation process, the rotor upper cage guide bar 3 and the rotor lower cage guide bar 6 are slowly inserted into the upper cage along the entrances of the rotor upper cage guide bar groove 12 and the rotor lower cage guide bar groove 13 from one end of the rotor core 10 respectively. In guide bar groove 12, rotor lower cage guide bar groove 13 grooves. Appropriately dry and heat-treat the rotor upper cage end ring 4 and rotor lower cage end ring 7 to slightly expand the volume, and insert the part of the guide bar protruding from the rotor core 10 into the rotor upper cage end ring 4 and the rotor lower cage end respectively. In the empty groove reserved by the ring 7, the end ring is provided with an empty groove along the circumferential direction. The cross-sectional shape and area of the empty groove are equal to the cross-sectional shape and area of the guide bar, and its purpose is to ensure that the guide bar The part protruding from the rotor core 10 can be closely combined with the end ring; the purpose of the dry heat treatment is to make the end ring properly thermally expand, which is beneficial to insert the guide bar protruding from the part of the rotor core 10 into the end. Annulus groove. Properly adjust the relative positions of rotor upper cage end ring 4, rotor lower cage end ring 7, rotor upper cage guide bar 3, and rotor lower cage guide bar 6 at both ends to ensure:
（1）所述导条伸出转子铁芯10的部分与所述端环电气接触良好、机械接触稳固；(1) The part of the guide bar protruding from the rotor core 10 is in good electrical contact with the end ring, and the mechanical contact is stable;
（2）所述端环靠近转子铁芯10的两端，且所述端环的截面圆与转子铁心的截面圆接近平行；(2) The end ring is close to both ends of the rotor core 10, and the cross-sectional circle of the end ring is nearly parallel to the cross-sectional circle of the rotor core;
待所述端环冷却至室温，确保所述导条和所述端环的接触面具备焊接、固定的条件，利用焊接技术、固定技术等使所述导条和端环连接成为一个整体，既要满足良好的电气接触，也要满足良好的机械接触，所述固定接合处无开裂、虚接等现象及可能。根据工艺需要，采取合适加工工艺，以确保插入所述导条、装有所述端环的转子尺寸、光洁度满足设计要求。After the end ring is cooled to room temperature, ensure that the contact surface of the guide bar and the end ring is welded and fixed, and use welding technology, fixing technology, etc. to connect the guide bar and the end ring as a whole, both Good electrical contact and good mechanical contact must also be satisfied, and there is no phenomenon or possibility of cracking or false connection at the fixed joint. According to the requirements of the process, a suitable processing process is adopted to ensure that the size and smoothness of the rotor inserted with the guide bar and equipped with the end ring meet the design requirements.
将转子上下笼间导热环5嵌入转子上笼端环4与转子下笼端环7之间，即转子上下笼间导热环5的外径等于转子上笼端环4的内径，所述导热环的内径等于转子下笼端环7的外径，且导热环的轴向长度应该稍大于或等于所述端环的轴向长度，同时所述导热环与所述端环的接触面应该平整。Insert the heat conduction ring 5 between the upper and lower rotor cages between the rotor upper cage end ring 4 and the rotor lower cage end ring 7, that is, the outer diameter of the rotor upper and lower cage heat conduction ring 5 is equal to the inner diameter of the rotor upper cage end ring 4, and the heat conduction ring The inner diameter is equal to the outer diameter of the lower cage end ring 7 of the rotor, and the axial length of the heat conducting ring should be slightly greater than or equal to the axial length of the end ring, and the contact surface between the heat conducting ring and the end ring should be flat.
将转子加固环2嵌入转子上笼端环4的外侧，即转子加固环2的内径等于转子上笼端环4的外径，且转子加固环2的外径应等于此时转子的外径，所述转子加固环的轴向长度应该稍大于或等于所述端环的轴向长度，将转轴9插入转子铁芯10的中空间隙内，并调整至设计所要求的位置。根据工艺需要，采用合适加工工艺，保持转子加固环2、转子上笼端环4、转子下笼端环7、转子上下笼间导热环5远离转子铁芯10的端面平整。Insert the rotor reinforcement ring 2 into the outer side of the upper cage end ring 4 of the rotor, that is, the inner diameter of the rotor reinforcement ring 2 is equal to the outer diameter of the upper cage end ring 4 of the rotor, and the outer diameter of the rotor reinforcement ring 2 should be equal to the outer diameter of the rotor at this time, The axial length of the rotor reinforcement ring should be slightly greater than or equal to the axial length of the end ring. Insert the rotating shaft 9 into the hollow gap of the rotor core 10 and adjust it to the position required by the design. According to the process requirements, adopt appropriate processing technology to keep the end faces of the rotor reinforcement ring 2, the rotor upper cage end ring 4, the rotor lower cage end ring 7, and the rotor upper and lower cage heat conducting rings 5 away from the rotor core 10 flat.
进一步，将转子屏蔽套1、转子屏蔽套端盖8包裹于转子外表面，其中转子屏蔽套1应为空心圆筒结构，所述空心圆筒的内径等于转子外径，或者稍微大于转子外径，所述空心圆筒的轴向长度应大于转子的轴向长度，调整所述空心圆筒伸出转子两端的长度一致，将呈现圆环形状的转子屏蔽套端盖8的空心部分穿过转轴9到达转子加固环2、转子上笼端环4、转子下笼端环7、转子上下笼间导热环5远离转子铁芯10的端面，转子屏蔽套端盖8的外径应该等于或者稍微小于转子屏蔽套1的内径，转子屏蔽套端盖8的内径应等于或者稍微小于转轴9的外径。同时，当转子屏蔽套端盖8的内侧即将接触转轴9时，应该沿着转轴9的外表面向远离转子铁芯10的方向适当伸出一段距离，益于下一步的焊接工作。Further, wrap the rotor shielding sleeve 1 and the rotor shielding sleeve end cover 8 on the outer surface of the rotor, wherein the rotor shielding sleeve 1 should be a hollow cylinder structure, and the inner diameter of the hollow cylinder is equal to the outer diameter of the rotor, or slightly larger than the outer diameter of the rotor , the axial length of the hollow cylinder should be greater than the axial length of the rotor, adjust the length of the hollow cylinder protruding from both ends of the rotor to be consistent, and pass the hollow part of the rotor shielding sleeve end cover 8 in the shape of a ring through the rotating shaft 9 reaches the rotor reinforcement ring 2, the rotor upper cage end ring 4, the rotor lower cage end ring 7, the rotor upper and lower cage heat transfer ring 5 away from the end face of the rotor core 10, the outer diameter of the rotor shielding sleeve end cover 8 should be equal to or slightly smaller than The inner diameter of the rotor shielding sleeve 1 and the inner diameter of the end cover 8 of the rotor shielding sleeve should be equal to or slightly smaller than the outer diameter of the rotating shaft 9 . At the same time, when the inner side of the rotor shielding sleeve end cover 8 is about to contact the rotating shaft 9, it should extend a certain distance along the outer surface of the rotating shaft 9 away from the rotor core 10, which is beneficial to the next welding work.
确保转子屏蔽套1与转子屏蔽套端盖8的接触面、转子屏蔽套端盖8与转轴9的外表面具备焊接、固定的条件，利用焊接技术、固定技术等使转子屏蔽套1与转子屏蔽套端盖8、转子屏蔽套端盖8与转轴9连接成为整体，既要满足良好的电气接触，也要满足良好的机械接触，所述固定接合处无开裂、虚接等现象及可能。根据工艺需要，采取合适加工工艺，以确保经过屏蔽手段处理的转子尺寸、光洁度满足设计要求。Ensure that the contact surface between the rotor shielding sleeve 1 and the rotor shielding sleeve end cover 8, and the outer surface of the rotor shielding sleeve end cover 8 and the rotating shaft 9 meet the welding and fixing conditions, and use welding technology, fixing technology, etc. to make the rotor shielding sleeve 1 and the rotor shielding The sleeve end cover 8, the rotor shield sleeve end cover 8 and the rotating shaft 9 are connected as a whole to satisfy both good electrical contact and good mechanical contact. According to the process requirements, adopt appropriate processing technology to ensure that the size and smoothness of the rotor treated by shielding means meet the design requirements.
进一步的，将所述的复合结构转子作为屏蔽泵用电机的一个部件，并应用于屏蔽泵用电机。较佳的，转子上笼导条3以及转子上笼端环4的截面积较小，且材料为电阻率较大的铝；转子下笼导条6以及转子下笼端环7的截面积较大，且材料为电阻率较小的铜。根据所述电机起动时转子电流的集肤效应来分析，起动时，转子上笼导条3以及转子下笼导条6的感应电动势、电流频率很高，转子下笼导条6的漏抗很大，电流较小，功率因数较低，因此产生的电磁转矩也较小；转子上笼导条外笼的漏抗很小，电阻较大，电流较大，产生的电磁转矩也较大，转子上笼导条为起动导条。正常运行时，转子上笼导条3以及转子下笼导条6的感应电动势、电流频率很低，转子下笼导条6的漏电抗减小，转子下笼导条6电阻较小，所以电流较大，运行时起作用的主要是转子下笼导条6，称之为运行导条。由于转子下笼导条6以及转子下笼端环7的材料为铜，相比于上下笼导条材料均为铝的转子及电机，本发明的欧姆损耗较小、电机效率较高；相比于上下笼导条材料均为铜的转子及电机，本发明的成本明显降低。Further, the composite structure rotor is used as a part of the canned pump motor and applied to the canned pump motor. Preferably, the cross-sectional area of the rotor upper cage guide bar 3 and the rotor upper cage end ring 4 is relatively small, and the material is aluminum with a relatively high resistivity; the rotor lower cage guide bar 6 and the rotor lower cage end ring 7 have a relatively small cross-sectional area. Large, and the material is copper with low resistivity. Analyze according to the skin effect of the rotor current when the motor starts, during starting, the induced electromotive force and current frequency of the upper cage bar 3 of the rotor and the lower cage bar 6 of the rotor are very high, and the leakage reactance of the lower cage bar 6 of the rotor is very high. Large, small current, low power factor, so the electromagnetic torque generated is also small; the leakage reactance of the upper cage guide bar and the outer cage of the rotor is small, the resistance is large, the current is large, and the electromagnetic torque generated is also large , the cage guide bar on the rotor is the starting guide bar. During normal operation, the induced electromotive force and current frequency of the rotor upper cage bar 3 and the rotor lower cage bar 6 are very low, the leakage reactance of the rotor lower cage bar 6 decreases, and the resistance of the rotor lower cage bar 6 is small, so the current Larger, it is mainly the lower cage guide bar 6 of the rotor that plays a role during operation, which is called the running guide bar. Since the material of the rotor lower cage guide bar 6 and the rotor lower cage end ring 7 is copper, compared with the rotor and the motor in which the materials of the upper and lower cage guide bars are all aluminum, the ohmic loss of the present invention is smaller and the motor efficiency is higher; The cost of the present invention is obviously reduced for the rotor and the motor whose upper and lower cage guide bars are made of copper.
同时，由于较佳的在转子上笼端环4、转子下笼端环7之间嵌放有转子上下笼间导热环5，转子上笼端环4的外侧嵌放有转子加固环2，所述的各个部件均为金属材料，且紧密接触、接触面平滑，此外，所述部件的外接触面与转子屏蔽套1、转子屏蔽套端盖8相接触，很大程度上提高了复合结构转子的散热能力，也进一步推高了电机的散热能力，可以确保电机的稳定运行。At the same time, because the heat conduction ring 5 between the upper and lower rotor cages is preferably embedded between the rotor upper cage end ring 4 and the rotor lower cage end ring 7, and the rotor reinforcement ring 2 is embedded outside the rotor upper cage end ring 4, so All the parts mentioned above are made of metal materials, and they are in close contact with smooth contact surfaces. In addition, the outer contact surfaces of the parts are in contact with the rotor shielding sleeve 1 and the rotor shielding sleeve end cover 8, which greatly improves the composite structure of the rotor. The heat dissipation capacity of the motor further increases the heat dissipation capacity of the motor, which can ensure the stable operation of the motor.
以上所述仅为本发明的一种实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，比如将本实施例中上笼导条槽12、转子下笼导条槽13槽、转子上笼导条3、转子下笼导条6根据设计需要，将截面形状设计为其他形状。或者向上笼导条槽12、转子下笼导条槽13槽内注入液体金属，然后接上端环进行冷却得到导条加端环组合结构。均应包含在本发明的保护范围内。The above is only an embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention, such as enclosing the present embodiment The guide bar slot 12, the rotor lower cage guide bar slot 13, the rotor upper cage guide bar 3, and the rotor lower cage guide bar 6 can be designed in other shapes according to the design requirements. Or inject liquid metal into the upper cage guide bar groove 12 and the rotor lower cage guide bar groove 13, and then connect the upper end ring for cooling to obtain a guide bar plus end ring combination structure. All should be included in the scope of protection of the present invention.
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910856259.9ACN110504809A (en) | 2019-09-11 | 2019-09-11 | A compound structure rotor and motor for canned pump |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910856259.9ACN110504809A (en) | 2019-09-11 | 2019-09-11 | A compound structure rotor and motor for canned pump |
| Publication Number | Publication Date |
|---|---|
| CN110504809Atrue CN110504809A (en) | 2019-11-26 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910856259.9APendingCN110504809A (en) | 2019-09-11 | 2019-09-11 | A compound structure rotor and motor for canned pump |
| Country | Link |
|---|---|
| CN (1) | CN110504809A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240048034A1 (en)* | 2020-12-10 | 2024-02-08 | Sergey Sergeevich LAGUTIN | Rotor of an asynchronous electrical machine |
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| JPS5960860U (en)* | 1982-10-14 | 1984-04-20 | 株式会社東芝 | double squirrel cage rotor |
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| RU2654688C1 (en)* | 2017-03-30 | 2018-05-22 | ООО "Инжиниринговый центр "Русэлпром" | Rotor of cast squirrel-cage induction motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20240048034A1 (en)* | 2020-12-10 | 2024-02-08 | Sergey Sergeevich LAGUTIN | Rotor of an asynchronous electrical machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20191126 |