Tool for installing permanent magnet rotor into shell by using press machine and installation method

Abstract

The invention discloses a tool for entering a permanent magnet rotor into a shell by using a press machine and an installation method, relates to the technical field of permanent magnet generators, and aims to solve the problems that in the background technology, air gaps are small, conventional air gap plates and other modes are difficult to select for entering the rotor into the shell due to structural limitation, and operation is complex. In order to solve the problem that the rotor or the stator is easily damaged in a limited space, the invention provides the following scheme: the device comprises an upper positioning mechanism arranged at the top of the generator rotor; the upper positioning mechanism comprises an upper mounting base connected to the bottom end of a piston rod of the press machine through bolts, a plurality of connecting blocks welded to the outer wall of the bottom of the upper mounting base and an upper positioning base with a conical boss arranged on the outer wall of the bottom, and a rotor guide rod is arranged at the bottom of the generator rotor; a mounting groove is formed in the outer wall of the top end of the rotor guide rod. According to the method, the problem of collision between the rotor and the stator easily caused by small air gaps in a traditional method can be effectively solved, efficient, accurate and safe assembly is realized, and the damage risk is remarkably reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of permanent magnet generator, and particularly relates to a tool and installation method for permanent magnet rotor into shell by using a press. BACKGROUND

[0002] The permanent magnet generator refers to a power generation device for converting mechanical energy converted from thermal energy into electric energy. The permanent magnet generator has the advantages of small size, low loss and high efficiency. In today's society where energy saving and environmental protection are increasingly valued, it is necessary to study the permanent magnet generator. In many cases, the permanent magnet generator can be brushless, and thus is mainly used in small and micro electric motors. When a variable frequency power supply is used for power supply, the permanent magnet motor can also be used in a speed control transmission system. With the continuous improvement and perfection of the performance of permanent magnet materials, the permanent magnet motor has been widely used in various fields such as household appliances, medical devices, automobiles, aviation and national defense.

[0003] The TYF1600-6-HTX9 high-speed permanent magnet generator is a generator in which magnetic shaft bearings are used instead of ordinary bearings on both sides. The rotational speed can reach 12000r / min. The structure of the generator mainly includes the following parts: intermediate magnetic bearing stator and rotor, radial magnetic bearing stator and rotor, main machine stator and rotor, and other rectifier devices. The air gap of the main machine stator and rotor is 4mm. However, the air gap between the intermediate magnetic bearing stator and rotor and the radial magnetic bearing stator and rotor is only 0.8mm. Due to the structural limitations, it is difficult to use conventional air gap plates and other methods to perform rotor into shell operation. In the limited space, the rotor or stator is easily damaged. SUMMARY

[0004] The present application provides a tool and installation method for permanent magnet rotor into shell by using a press, which solves the problem of the small air gap of the high-speed permanent magnet generator in the prior art. Due to the structural limitations, it is difficult to use conventional air gap plates and other methods to perform rotor into shell operation. In the limited space, the rotor or stator is easily damaged.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions: The utility model provides a kind of tool for permanent magnet rotor into shell using press, including the upper positioning mechanism being arranged in the top of generator rotor, the upper positioning mechanism includes the upper mounting seat being connected by bolt on the bottom end of press piston rod, several connection blocks being welded on the bottom outer wall of upper mounting seat respectively and the upper positioning seat being equipped with conical boss on bottom outer wall, the bottom of the generator rotor is equipped with rotor guide rod, the outer wall on the top of rotor guide rod is opened with installation slot, and generator rotor lower portion is slidably sleeved in installation slot, the lower portion of rotor guide rod is opened with lower clamping slot, and the upper portion of rotor guide rod is opened with upper clamping slot, the outer portion of rotor guide rod is equipped with into shell positioning mechanism, the into shell positioning seat being opened with several through holes on upper outer wall and the limiting cylinder being welded on the bottom inner wall of into shell positioning seat, the lower portion of rotor guide rod is equipped with lower positioning mechanism, the lower positioning mechanism includes support seat, lower mounting seat being connected by bolt on the top outer wall of support seat, several support blocks being welded on the top outer wall of lower mounting seat respectively, lower positioning seat being welded on the top outer wall of several support blocks and positioning cylinder being connected by bolt on the bottom outer wall of lower positioning seat, the inside of support seat is equipped with two limiting components, the limiting component includes sliding rod being installed on the outer wall of support seat and being penetrated, reset spring being sleeved on the outer wall of sliding rod and clamping block being welded on the outer wall of one end of sliding rod.

[0006] Preferably, the upper portion of the generator rotor is equipped with intermediate magnetic bearing, and the lower portion of the generator rotor is equipped with radial magnetic bearing.

[0007] Preferably, the upper positioning seat is welded on the bottom outer wall of several connection blocks respectively, and the upper positioning seat is connected by bolt on the outer wall on the top of generator rotor.

[0008] Preferably, the fastening bolt is screwed on the outer wall on the upper portion of rotor guide rod, and the fastening bolt is fastened with generator rotor.

[0009] Preferably, the installation opening is opened on the bottom outer wall of into shell positioning seat, and the rotor guide rod is slidably sleeved in installation opening and limiting cylinder.

[0010] Preferably, the installation hole is opened on the top outer wall of lower positioning seat, and the rotor guide rod is slidably sleeved in installation hole and positioning cylinder.

[0011] Preferably, the two ends of reset spring are respectively abutted on the inner wall of support seat and the outer wall of clamping block, the upper portion and the lower portion of the outer wall on one side of clamping block are both inclined guide surface, and the limiting block is connected by bolt on the outer wall on one end of sliding rod.

[0012] A tool and installation method for permanent magnet rotor into shell using press, comprising the following steps: S1: the support seat is fixed on the platform of the press, the upper mounting seat is fixed on the bottom end of the piston rod of the press, the generator stator is fixed on the top outer wall of the lower positioning seat, and the shell-entering positioning seat is fixed on the top outer wall of the generator stator, S2: the generator rotor is sleeved on the mounting groove on the rotor guide rod, and the generator rotor is fixed by using the fastening bolts, the piston rod of the press is lowered, and the generator rotor is fixed on the bottom outer wall of the upper positioning seat, S3: after the overall positioning and installation are completed, the piston rod of the press is raised to drive the generator rotor to rise, so that the two clamping blocks are clamped in the lower clamping grooves, at this time, the fastening bolts are removed, at this time, the piston rod of the press is raised to drive the generator rotor to be separated from the mounting groove on the rotor guide rod, and the shell-entering positioning seat is removed, S4: the piston rod of the press is lowered, the generator rotor is sleeved on the mounting groove on the rotor guide rod again, the piston rod of the press continuously applies pressure, so that the lower part of the rotor guide rod extrudes the clamping blocks and moves the clamping blocks, and the reset spring is extruded, so that the rotor guide rod is lowered until the generator rotor is completely pressed into the generator stator, at this time, the two clamping blocks are clamped in the upper clamping grooves, and the rotor guide rod is prevented from being separated from the positioning cylinder, S5: the connecting bolts on the generator stator and the generator rotor are removed.

[0013] The beneficial effects of the present application are: Through the cooperation of the upper positioning mechanism (including the upper mounting seat, the connecting block and the upper positioning seat) and the lower positioning mechanism (including the support seat, the lower mounting seat, the support block, the lower positioning seat and the positioning cylinder), the accurate centering of the generator rotor and the stator is realized. The upper positioning mechanism is connected with the piston rod of the press, so that the stable movement of the rotor in the vertical direction is ensured; the lower positioning mechanism fixes the stator and guides the rotor guide rod through the positioning cylinder, so that the deviation of the rotor in the shell-entering process is prevented, the rotor guide rod is designed with the mounting groove, the lower clamping groove and the upper clamping groove, and cooperates with the clamping blocks of the limiting assembly, so that the linearity and stability of the rotor in the movement process are further ensured, the problem of collision between the rotor and the stator caused by the small air gap in the traditional method can be effectively overcome, efficient, accurate and safe assembly is realized, and the damage risk is significantly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole front view structural schematic diagram of a tool for entering the shell of a permanent magnet rotor by using a press.

[0015] Figure 2 It is a partial cross-sectional structural schematic diagram of a tool for entering the shell of a permanent magnet rotor by using a press.

[0016] Figure 3 It is a generator rotor structural schematic diagram of a tool for entering the shell of a permanent magnet rotor by using a press.

[0017] Figure 4 A schematic diagram of the upper positioning mechanism part of the tool for the permanent magnet rotor into the shell using a press.

[0018] Figure 5 A schematic diagram of the main view structure of the rotor guide rod of the tool for the permanent magnet rotor into the shell using a press.

[0019] Figure 6 A schematic diagram of the main view structure of the rotor guide rod of the tool for the permanent magnet rotor into the shell using a press. Figure 5 An enlarged schematic diagram of the main view structure of the dispersion assembly at A in the middle.

[0020] Figure 7 A schematic diagram of the upper positioning mechanism part of the tool for the permanent magnet rotor into the shell using a press.

[0021] Figure 8 A schematic diagram of the lower positioning mechanism part of the tool for the permanent magnet rotor into the shell using a press.

[0022] Figure 9 A schematic diagram of the main view structure of the limiting assembly of the tool for the permanent magnet rotor into the shell using a press.

[0023] In the figure: 1, generator rotor; 11, intermediate magnetic bearing; 12, radial magnetic bearing; 2, upper positioning mechanism; 201, upper mounting seat; 202, connecting block; 203, upper positioning seat; 3, rotor guide rod; 31, lower clamping groove; 32, upper clamping groove; 33, fastening bolt; 4, shell positioning mechanism; 401, shell positioning seat; 402, limiting cylinder; 5, lower positioning mechanism; 501, support seat; 502, lower mounting seat; 503, support block; 504, lower positioning seat; 505, positioning cylinder; 6, limiting assembly; 601, sliding rod; 602, return spring; 603, clamping block; 604, limiting block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0025] Embodiment 1, refer to Figures 1-9A tooling and installation method for inserting a permanent magnet rotor into a housing using a press includes an upper positioning mechanism 2 located on the top of a generator rotor 1. The generator rotor 1 has an upper intermediate magnetic bearing 11 and a lower radial magnetic bearing 12. The upper positioning mechanism 2 includes an upper mounting base 201 bolted to the bottom end of the press piston rod, several connecting blocks 202 welded to the bottom outer wall of the upper mounting base 201, and an upper positioning seat 203 with a conical boss on its bottom outer wall. The upper positioning seat 203 is welded to the bottom outer wall of the connecting blocks 202. The upper positioning seat 203 is connected to the bottom outer wall of the connecting blocks 202 by bolts. A rotor guide rod 3 is bolted to the outer wall of the top of the generator rotor 1. The bottom of the generator rotor 1 is provided with a rotor guide rod 3. An installation groove is opened on the outer wall of the top of the rotor guide rod 3. The lower part of the generator rotor 1 is slidably fitted into the installation groove. A lower retaining groove 31 is opened on the lower part of the rotor guide rod 3, and an upper retaining groove 32 is opened on the upper part of the rotor guide rod 3. A fastening bolt is screwed onto the upper outer wall of the rotor guide rod 3, forming a fastening fit with the generator rotor 1. An insertion positioning mechanism 4 is provided outside the rotor guide rod 3. The insertion positioning mechanism 4 includes an insertion positioning seat 401 with several through holes on its upper outer wall and a bottom inner wall welded to the insertion positioning seat 401. The upper limiting cylinder 402, the bottom outer wall of the housing positioning seat 401 has an installation port, the rotor guide rod 3 is slidably sleeved in the installation port and the limiting cylinder 402, the lower part of the rotor guide rod 3 is provided with a lower positioning mechanism 5, the lower positioning mechanism 5 includes a support seat 501, a lower mounting seat 502 bolted to the top outer wall of the support seat 501, several support blocks 503 respectively welded to the top outer wall of the lower mounting seat 502, a lower positioning seat 504 welded to the top outer wall of the several support blocks 503, and a positioning cylinder 505 bolted to the bottom outer wall of the lower positioning seat 504. The top outer wall of the lower positioning seat 504 is... The wall has an installation hole, and the rotor guide rod 3 is slidably sleeved in the installation hole and the positioning cylinder 505. The support base 501 is provided with two limiting components 6. The limiting component 6 includes a slide rod 601 that passes through and is slidably installed on the outer wall of the support base 501, a return spring 602 sleeved on the outer wall of the slide rod 601, and a locking block 603 welded to the outer wall of one end of the slide rod 601. The two ends of the return spring 602 abut against the inner wall of the support base 501 and the outer wall of the locking block 603, respectively. The upper and lower outer walls of one side of the locking block 603 are inclined guide surfaces. A limiting block 604 is bolted to the outer wall of one end of the slide rod 601.

[0026] Example 2: A method for installing a permanent magnet rotor into a housing using a press, comprising the following steps: S1: Fix the support base 501 on the press platform, fix the upper mounting base 201 to the bottom end of the press piston rod, fix the generator stator on the top outer wall of the lower positioning base 504, and fix the housing positioning base 401 on the top outer wall of the generator stator. S2: Place the generator rotor 1 into the mounting groove on the rotor guide rod 3, and fix the generator rotor 1 with the fastening bolts 33. The press piston rod descends and fixes the generator rotor 1 on the bottom outer wall of the upper positioning seat 203. S3: After the overall positioning and installation are completed, the press piston rod rises and drives the generator rotor 1 to rise, so that the two locking blocks 603 are respectively locked in the lower locking groove 31. At this time, the fastening bolt 33 is removed. At this time, the press piston rod rises and drives the generator rotor 1 to disengage from the mounting groove on the rotor guide rod 3. The housing positioning seat 401 is removed. S4: The press piston rod descends, re-fitting the generator rotor 1 into the mounting groove on the rotor guide rod 3. The press piston rod continues to apply pressure, causing the lower part of the rotor guide rod 3 to press against the locking block 603 and move the locking block 603. At the same time, it presses against the return spring 602, causing the rotor guide rod 3 to descend until the generator rotor 1 is completely pressed into the generator stator. At this time, the two locking blocks 603 are locked in the upper locking groove 32 to prevent the rotor guide rod 3 from dislodging from the positioning cylinder 505. S5: Remove the connecting bolts on the generator stator and generator rotor 1.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tooling for inserting a permanent magnet rotor into a housing using a press, comprising an upper positioning mechanism (2) disposed on the top of a generator rotor (1), characterized in that, The upper positioning mechanism (2) includes an upper mounting seat (201) that is bolted to the bottom end of the piston rod of the press, several connecting blocks (202) that are respectively welded to the bottom outer wall of the upper mounting seat (201), and an upper positioning seat (203) with a conical boss on the bottom outer wall. The generator rotor (1) is provided with a rotor guide rod (3) at the bottom. The outer wall of the top of the rotor guide rod (3) is provided with an installation groove, and the lower part of the generator rotor (1) is slidably sleeved in the installation groove. The lower part of the rotor guide rod (3) is provided with a lower slot (31), and the upper part of the rotor guide rod (3) is provided with an upper slot (32). The rotor guide rod (3) is provided with a housing positioning mechanism (4) on the outside. The housing positioning mechanism (4) includes a housing positioning seat (401) with several through holes on the upper outer wall and a limiting cylinder (402) welded to the bottom inner wall of the housing positioning seat (401). The rotor guide rod (3) is provided with a lower positioning mechanism (5) at its lower part. The lower positioning mechanism (5) includes a support base (501), a lower mounting base (502) connected to the top outer wall of the support base (501) by bolts, a number of support blocks (503) respectively welded to the top outer wall of the lower mounting base (502), a lower positioning base (504) welded to the top outer wall of the number of support blocks (503), and a positioning cylinder (505) connected to the bottom outer wall of the lower positioning base (504) by bolts. The support base (501) is provided with two limiting components (6). The limiting components (6) include a slide rod (601) that passes through and is slidably installed on the outer wall of the support base (501), a return spring (602) sleeved on the outer wall of the slide rod (601), and a locking block (603) welded to the outer wall of one end of the slide rod (601).

2. The tooling for inserting a permanent magnet rotor into a housing using a press according to claim 1, characterized in that, The generator rotor (1) is provided with an intermediate magnetic bearing (11) on the upper part and a radial magnetic bearing (12) on the lower part.

3. The tooling for inserting a permanent magnet rotor into a housing using a press according to claim 1, characterized in that, The upper positioning seat (203) is welded to the bottom outer wall of several connecting blocks (202) respectively, and the upper positioning seat (203) is connected to the top outer wall of the generator rotor (1) by bolts.

4. The tooling for inserting a permanent magnet rotor into a housing using a press according to claim 1, characterized in that, The upper outer wall of the rotor guide rod (3) is screwed with a fastening bolt, and the fastening bolt forms a tight fit with the generator rotor (1).

5. The tooling for inserting a permanent magnet rotor into a housing using a press according to claim 1, characterized in that, The bottom outer wall of the housing positioning seat (401) has an installation port, and the rotor guide rod (3) is slidably sleeved in the installation port and the limiting cylinder (402).

6. The tooling for inserting a permanent magnet rotor into a housing using a press according to claim 1, characterized in that, The lower positioning seat (504) has an installation hole on its top outer wall, and the rotor guide rod (3) is slidably sleeved in the installation hole and the positioning cylinder (505).

7. The tooling and installation method for inserting a permanent magnet rotor into a housing using a press, as described in claim 1, is characterized in that... The two ends of the return spring (602) abut against the inner wall of the support base (501) and the outer wall of the locking block (603) respectively. The upper and lower outer walls of one side of the locking block (603) are inclined guide surfaces. The outer wall of one end of the slide rod (601) is connected to a limit block (604) by bolts.

8. The method for installing a permanent magnet rotor into a housing using a press according to claim 1, characterized in that, Includes the following steps: S1: Fix the support base (501) on the press platform, fix the upper mounting base (201) to the bottom end of the press piston rod, fix the generator stator on the top outer wall of the lower positioning base (504), and fix the housing positioning base (401) on the top outer wall of the generator stator. S2: Place the generator rotor (1) into the mounting groove on the rotor guide rod (3) and fix the generator rotor (1) with fastening bolts (33). The press piston rod descends and fixes the generator rotor (1) on the bottom outer wall of the upper positioning seat (203). S3: After the overall positioning installation is completed, the press piston rod rises and drives the generator rotor (1) to rise, so that the two locking blocks (603) are respectively locked in the lower locking groove (31). At this time, the fastening bolt (33) is removed. At this time, the press piston rod rises and drives the generator rotor (1) to disengage from the mounting groove on the rotor guide rod (3). The housing positioning seat (401) is removed. S4: The press piston rod descends, re-fitting the generator rotor (1) into the mounting groove on the rotor guide rod (3). The press piston rod continues to apply pressure, causing the lower part of the rotor guide rod (3) to press against the locking block (603) and move the locking block (603), while simultaneously pressing against the reset spring (602), causing the rotor guide rod (3) to descend until the generator rotor (1) is completely pressed into the generator stator. At this time, the two locking blocks (603) are locked in the upper locking groove (32) to prevent the rotor guide rod (3) from dislodging from the positioning cylinder (505). S5: Remove the connecting bolts on the generator stator and generator rotor (1).

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