Assembly tool for permanent magnet semi-direct drive motor of large vertical mill

Abstract

The utility model discloses an assembly tool for a permanent magnet semi-direct drive motor of a large-scale vertical mill, which comprises a guide support and at least two guide rods, the guide rods can be arranged on the bottom wall of a speed reducer box body, and when the guide rods are arranged on the speed reducer box body, the guide rods are parallel to the axis of a motor stator in the speed reducer box body; hoisting holes and insertion holes corresponding to the guide rods in number and size are respectively formed in the guide support; the guide support can be arranged on a motor main shaft of the motor rotor assembly in a sleeving manner through the hoisting holes and is put on the motor rotor assembly in a lapping manner; the guide support can be fixedly installed on the edge of an upper opening of the speed reducer box body, and the guide rods can be inserted into the corresponding insertion holes. And the guide support is also provided with a motor rotor assembly mounting operation hole. According to the utility model, the guide rod, the guide support and the cooperation of the guide rod and the guide support with the reducer box body can realize the effects of directional guiding and bearing of large magnetic attraction force in the assembling process of the motor rotor assembly, auxiliary equipment is not needed, the assembly is in place at one time, a stator and rotor assembling machine does not need to be purchased additionally, and the cost is reduced. The convenience of assembling the rotor and the stator of the large-scale permanent magnet motor is improved, and the assembling cost is greatly reduced at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of permanent magnet semi-direct drive motors for large vertical mills, in particular to an assembly tooling for permanent magnet semi-direct drive motors for large vertical mills. Background Technique

[0002] In recent years, in order to respond to the country's requirements for energy conservation and consumption reduction, some small vertical mill application enterprises have gradually carried out transformation and optimization, eliminating the drive systems of traditional vertical mills (high-voltage asynchronous motors, couplings, vertical mill speed reducers, and lubrication devices), and replacing them with permanent magnet semi-direct drive vertical mill drive systems. The large permanent magnet semi-direct drive vertical mill drive system mainly consists of a permanent magnet synchronous motor, an inverter, a single-stage or two-stage planetary gear drive system, a lubrication system, etc.; the permanent magnet synchronous motor drives the planetary gear drive system to decelerate and then drives the grinding table of the vertical mill to rotate.

[0003] The traditional permanent magnet semi-direct drive vertical mill drive system makes the permanent magnet motor and the speed reducer into two complete products, and the motor and the speed reducer housing are vertically assembled and fixed together through bolts and pins, and are connected in series through the structure of a drum-shaped tooth coupling in the middle to achieve the integration of the two products. The deeply integrated large vertical mill permanent magnet semi-direct drive system adopts another method, where the stator of the permanent magnet motor is integrally assembled on the housing of the speed reducer, the rotor of the permanent magnet motor is assembled on the support plate inside the housing of the speed reducer, and the gap control between the rotor and the stator of the permanent magnet motor is determined by the connection between the support plate and the gearbox housing.

[0004] Regarding the above related technologies, the inventor believes that due to the large magnetic attraction between the rotor and the stator of the large permanent magnet motor, and the large size and weight of the rotor, stator, and gearbox housing, horizontal assembly cannot be achieved, and only vertical assembly can be used. And due to the strong magnetic attraction of the magnet, the rotor will be attracted unilaterally, which is likely to cause the rotor and the stator to be eccentric, resulting in a large number of bearing damages during the assembly of the stator and rotor, and it is also easy to cause scratches on the inner circular surface of the stator and the outer circular surface of the rotor; secondly, manual assembly cannot achieve one-time assembly in place, and auxiliary equipment such as a rubber mallet is needed to knock it in place, and then it is fixed with bolts, and the assembly process is more cumbersome. Although a stator-rotor assembling machine can be purchased for the assembly of the rotor and the stator, the purchase cost of the stator-rotor assembling machine is very high, and the cost of purchasing a stator-rotor assembling machine that can assemble the rotor and the stator of a large permanent magnet motor will further increase. Content of the Utility Model

[0005] The problem to be solved by the utility model is how to facilitate the assembly of the rotor and the stator of a large permanent magnet motor.

[0006] In order to achieve the above-mentioned utility model purpose, the utility model provides an assembly tooling for a permanent magnet semi-direct drive motor for a large vertical mill, and it adopts the following technical scheme:

[0007] An assembly tooling for a large vertical grinding mill permanent magnet semi-direct drive motor, comprising a guiding support and at least two guide rods. The guide rods can be installed on the bottom wall of the reducer box body, and when installed on the reducer box body, the guide rods are parallel to the axis of the motor stator in the reducer box body; hoisting holes and insertion holes corresponding to the number and size of the guide rods are respectively formed on the guiding support. The guiding support can be sleeved on the motor main shaft of the motor rotor assembly through the hoisting hole and placed on the motor rotor assembly; the guiding support can be fixedly installed on the edge of the upper opening of the reducer box body, and the guide rods can be inserted into the corresponding insertion holes; an installation operation hole for the motor rotor assembly is also formed on the guiding support.

[0008] By adopting the above technical solution, when assembling the rotor and stator of a large permanent magnet motor, first sleeve the guiding support on the motor rotor assembly and place it thereon, use a hoisting device to hoist the motor rotor assembly to the opening of the reducer box body, an operator installs the motor rotor assembly on at least one guide rod, and then hoists it downward, so that the motor rotor assembly slides along the guide rod for assembly. When the guiding support moves downward along with the motor rotor assembly and is placed on the reducer box body, at least one guide rod is inserted into the guiding support. At this time, install the guiding support on the reducer box body, and then continue to hoist the motor rotor assembly downward until it reaches the assembly position of the motor rotor assembly and the motor stator in the reducer box body. Fix the motor rotor assembly on the reducer box body through the installation operation hole of the motor rotor assembly, and then remove the guiding support and the guide rods, that is, complete the assembly of the rotor and stator of the large permanent magnet motor.

[0009] The guiding support and the reducer box body cooperate with each other to limit and fix the guide rods. During the assembly process, the guide rods can ensure that the motor rotor assembly is completely centered during the falling assembly process, reducing the magnetic attraction force generated due to the non-concentricity between the motor stator and the motor rotor assembly; at the same time, the guide rods can completely bear the magnetic attraction force generated between the motor stator and the motor rotor assembly without deformation, avoiding the occurrence of magnetic steel damage caused by the contact between the motor stator and the rotor due to the magnetic attraction force. The above assembly process does not require auxiliary equipment, is assembled in place at one time, and does not require the purchase of a stator-rotor assembly machine separately, significantly improving the convenience of assembling the rotor and stator of a large permanent magnet motor, and at the same time greatly reducing the assembly cost.

[0010] Optionally, the motor rotor assembly includes a motor main shaft, a support plate sleeved and rotatably connected to the motor main shaft, and a motor rotor fixed to the motor main shaft. The support plate is used for fixed installation with the inner wall of the reducer box body. Through holes corresponding to the number and size of the guide rods are formed on both the motor rotor and the support plate. At least one of the guide rods passes through the corresponding through holes on the motor rotor and the support plate at the same time; the diameter of the hoisting hole is larger than the diameter of the motor main shaft and smaller than the diameter of the support plate.

[0011] By adopting the above technical solution, at least one guide rod is correspondingly inserted through the through holes formed in the motor rotor and the support plate, enabling the motor rotor assembly to slide and assemble stably and smoothly along the guide rod. And since the diameter of the lifting hole is larger than the diameter of the motor main shaft and smaller than the diameter of the support plate, the guiding support can be sleeved on the motor main shaft and placed on the support plate, so that when the motor main shaft is lifted, the guiding support can be lifted simultaneously.

[0012] Optionally, screw holes are formed in the bottom wall of the reducer housing, one end of the guide rod is provided with threads, and the guide rod is inserted into the screw holes and threadedly connected to the reducer housing.

[0013] By adopting the above technical solution, the guide rod is threadedly connected to the reducer housing, so as to realize the detachable installation of the guide rod on the reducer housing, with stable installation and convenient removal.

[0014] Optionally, step shoulders are provided at both ends of the guide rod, the opening edge of the screw hole of the reducer housing is inserted and matched with the step shoulder at one end of the guide rod, and the opening edge of the insertion hole of the guiding support is inserted and matched with the step shoulder at the other end of the guide rod.

[0015] By adopting the above technical solution, the design of the step shoulders at both ends of the guide rod ensures that the guide rod will not move up and down due to complex magnetic attraction forces during the falling process of the motor rotor; and enables the guide rod to more accurately guide the centering and assembling position between the motor rotor and the motor stator.

[0016] Optionally, the guide rod is obtained by coaxially fixing three segmented rods. The uppermost segmented rod is installed on the guiding support, the middle segmented rod is precisely matched with the through holes of the motor rotor and the support plate, and the lowermost segmented rod is installed on the bottom wall of the reducer housing.

[0017] By adopting the above technical solution, compared with the integral design, dividing the guide rod into three segmented rods reduces the possibility of the guide rod bending and deforming, thereby enabling the guide rod to more stably guide the assembly of the motor rotor. And only the middle segmented rod needs to be precisely matched with the through holes of the motor rotor and the support plate to ensure the accuracy of the assembly between the motor rotor and the motor stator. The processing precision requirements for the other two segmented rods can be appropriately relaxed, which can save processing costs to a certain extent.

[0018] Optionally, the guiding support is placed on and fixedly installed on the opening edge of the reducer housing through a plurality of bolts.

[0019] By adopting the above technical solution, the guiding support is detachably installed on the reducer housing through bolts, with stable installation and convenient removal.

[0020] Optionally, a limiting stop is provided at the outer edge of the guiding support, and the opening edge of the reducer housing is fitted and inserted into the limiting stop.

[0021] By adopting the above technical solution, the limiting stop can first radially position the guiding support relative to the reducer housing, so as to facilitate the alignment of the screw holes on the guiding support and the reducer housing, improving the convenience of installing the guiding support; and the limiting stop can also assist the bolt in bearing part of the force transmitted from the guide rod to the guiding support, further enhancing the guiding stability of the guide rod.

[0022] Optionally, the number of the guide rods is preferably 2 - 4.

[0023] Optionally, the diameter range of the installation operation hole of the motor rotor assembly is 40 - 70 cm.

[0024] Optionally, a lifting ring is fixedly installed on the motor main shaft.

[0025] By adopting the above technical solution, the lifting end of the lifting device fixes and lifts the lifting ring, so as to stably and firmly lift and transport the motor main shaft, the motor rotor and the support plate.

[0026] In summary, the utility model includes at least one of the following beneficial technical effects:

[0027] 1. The guiding support and the reducer housing cooperate to limit and fix the guide rod. During the assembly process, the guide rod can ensure that the motor rotor assembly is completely centered during the falling assembly process, reducing the magnetic attraction force generated due to the non - concentricity between the motor stator and the motor rotor assembly; at the same time, the guide rod can completely bear the magnetic attraction force generated between the motor stator and the motor rotor assembly without deformation, avoiding the occurrence of magnetic steel damage caused by the contact between the motor stator and the rotor due to the magnetic attraction force. The above - mentioned assembly process does not require auxiliary equipment, can be assembled in one step, and does not require the purchase of a stator - rotor assembling machine separately, significantly improving the convenience of assembling the rotor and stator of a large - scale permanent - magnet motor, and at the same time greatly reducing the assembly cost;

[0028] 2. The guide rod is thread - connected to the reducer housing to realize the detachable installation of the guide rod on the reducer housing, with stable installation and convenient removal;

[0029] 3. The stepped stop design at both ends of the guide rod ensures that during the falling process of the motor rotor, the guide rod will not move up and down due to the complex magnetic attraction force, so that the guide rod can more stably guide the assembly path of the motor rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of the assembly tooling of a large vertical mill permanent - magnet semi - direct - drive motor according to an embodiment of the utility model when the assembly of the motor rotor and the stator is completed.

[0031] Figure 2 It is a schematic structural diagram for showing the motor rotor assembly in the embodiment of the present utility model.

[0032] Explanation of reference numerals: 1, reducer housing; 2, guiding support; 21, lifting hole; 22, insertion hole; 23, installation and operation hole for motor rotor assembly; 3, motor stator; 4, guide rod; 5, motor rotor assembly; 5-1, support plate; 5-2, motor rotor; 5-3, combined bearing; 5-4, motor main shaft; 5-5, bolt. Specific embodiments

[0033] The following will further elaborate on the present utility model in conjunction with the attached Figure 1-2 drawings.

[0034] The embodiment of the present utility model discloses an assembly tooling for a large vertical mill permanent magnet semi-direct drive motor. Referring to Figure 1 , the assembly tooling for the large vertical mill permanent magnet semi-direct drive motor includes a guiding support 2 and at least one guide rod 4. In the embodiment of the present utility model, the number of the guide rods 4 is set to four. The number of the guide rods 4 in other embodiments of the present utility model can be one, two or more. The four guide rods 4 guide the assembly path of the motor rotor assembly 5 in the reducer housing 1.

[0035] Referring to Figure 1 , the reducer housing 1 is provided with an upper opening. The motor stator 3 is fixedly installed inside the reducer housing 1, and the axis of the motor stator 3 is parallel to the opening direction of the reducer housing 1. Four screw holes are opened on the bottom wall of the reducer housing 1 corresponding to the number of the guide rods 4. The four guide rods 4 are respectively inserted into the four screw holes and are threadedly connected to the reducer housing 1. The four guide rods 4 are all located inside the hollow of the motor stator 3, and the four guide rods 4 are all parallel to the axis of the motor stator 3.

[0036] Referring to Figure 2 , the motor rotor assembly 5 includes a motor main shaft 5-4, a support plate 5-1 and a motor rotor 5-2. The support plate 5-1 is sleeved on the motor main shaft 5-4. A combined bearing 5-3 is arranged between the support plate 5-1 and the motor main shaft 5-4. The support plate 5-1 abuts against the mounting ring fixed on the inner wall of the reducer housing 1, and the support plate 5-1 is fixedly installed on the mounting ring through a plurality of bolts 5-5 distributed circumferentially. A lifting ring is fixedly installed on the upper end surface of the motor main shaft 5-4. The motor rotor 5-2 is fixedly connected to the lower end surface of the motor main shaft 5-4 through a plurality of bolts 5-5.

[0037] Referring to Figure 1, both the web and the support plate 5-1 of the motor rotor 5-2 are provided with four through holes corresponding to the number of guide rods 4. The four through holes on the web of the motor rotor 5-2 and the four through holes on the support plate 5-1 are arranged in one-to-one correspondence and concentrically along the same central axis. The four guide rods 4 are respectively and simultaneously inserted through the four through holes of the motor rotor 5-2 and the support plate 5-1.

[0038] Refer to Figure 1 , the guiding support 2 is lapped on the upper opening edge of the reducer housing 1. The guiding support 2 covers the upper opening of the reducer housing 1. The guiding support 2 is fixedly installed on the upper opening edge of the reducer housing 1 through a plurality of circumferentially distributed bolts 5-5, so as to realize the detachable installation of the guide rod 4 on the reducer housing 1, with stable installation and convenient removal.

[0039] Refer to Figure 1 , the lower side wall of the guiding support 2 is provided with four insertion holes 22 corresponding to the number of guide rods 4. The positions of the four insertion holes 22 are arranged in one-to-one correspondence with the four guide rods 4. The four guide rods 4 are respectively inserted into the corresponding insertion holes 22. A lifting hole 21 is opened at the center of the guiding support 2. The diameter of the lifting hole 21 is larger than the diameter of the motor main shaft 5-4 and smaller than the diameter of the support plate 5-1. The guiding support 2 is provided with a plurality of installation operation holes 23 for the motor rotor assembly. The plurality of installation operation holes 23 for the motor rotor assembly are circumferentially distributed around the central axis of the guiding support 2. The diameter of the installation operation hole for the motor rotor assembly is 60 cm. One installation operation hole 23 for the motor rotor assembly can provide an operation space for the operator to install two adjacent bolts 5-5.

[0040] Through the through holes opened in the motor rotor 5-2 and the support plate 5-1, the four guide rods 4 are respectively inserted through the through holes opened in the motor rotor 5-2 and the support plate 5-1, so that the motor rotor assembly 5 can be stably and smoothly slidably assembled along the guide rods 4. And because the diameter of the lifting hole 21 is larger than the diameter of the motor main shaft 5-4 and smaller than the diameter of the support plate 5-1, the guiding support 2 can be sleeved on the motor main shaft 5-4 and lapped on the support plate 5-1. And during the assembly process, the fitting position of the motor rotor 5-2 and the motor stator 3 can be positioned through the lapping position of the support plate 5-1 and the reducer housing 1, so as to more accurately and conveniently assemble the motor rotor 5-2.

[0041] When assembling the rotor and stator of the large permanent magnet motor, first sleeve the guiding support 2 on the motor main shaft 5-4 and place it on the support plate 5-1. Use a lifting device to lift the motor main shaft 5-4, so as to lift the motor rotor assembly 5 and the guiding support 2 to the opening of the reducer housing 1. The operator adjusts to align the four through holes of the support plate 5-1 with the four guide rods 4, and then lowers it, so that the motor rotor assembly 5 slides and assembles along the guide rods 4.

[0042] When the guiding support 2 moves downward along with the motor rotor assembly 5 and is placed on the speed reducer housing 1, the four guide rods 4 are all inserted into the guiding support 2. At this time, the guiding support 2 is fixedly installed on the speed reducer housing 1 through bolts 5-5. Then, the motor rotor assembly 5 is further lifted downward until the support plate 5-1 is lapped on the mounting ring of the speed reducer housing 1, that is, the assembling position of the motor rotor assembly 5 and the motor stator 3 in the speed reducer housing 1 is reached. The support plate 5-1 is installed on the mounting ring of the speed reducer housing 1 through the motor rotor assembly installation operation hole 23. Then, the guiding support 2 and the guide rods 4 are removed, and the assembly of the rotor and stator of the large permanent magnet motor is completed.

[0043] The guiding support 2 and the speed reducer housing 1 cooperate with each other to limit and fix the guide rods 4. During the assembly process, the guide rods 4 can ensure that the motor rotor assembly 5 is completely centered during the falling assembly process, reducing the magnetic attraction force generated due to the non-concentricity between the motor stator 3 and the motor rotor assembly 5. At the same time, the guide rods 4 can completely bear the magnetic attraction force generated between the motor stator 3 and the motor rotor assembly 5 without deformation, avoiding the occurrence of the situation where the magnetic steel is damaged due to the contact between the motor stator 3 and the rotor caused by the magnetic attraction force. The above assembly process does not require auxiliary equipment, can be assembled in place at one time, and does not require the purchase of a stator-rotor assembling machine separately, significantly improving the convenience of assembling the rotor and stator of the large permanent magnet motor, and at the same time greatly reducing the assembly cost.

[0044] Refer to Figure 1 , in order to make the guide rods 4 more stably guide the assembly path of the motor rotor 5-2, step shoulders are provided at both ends of the guide rods 4. The opening edge of the screw hole of the speed reducer housing 1 is inserted and matched with the step shoulder at one end of the guide rod 4, and the opening edge of the insertion hole 22 of the guiding support 2 is inserted and matched with the step shoulder at the other end of the guide rod 4. The design of the step shoulders at both ends of the guide rod 4 ensures that during the falling process of the motor rotor 5-2, the guide rods 4 will not move up and down due to the complex magnetic attraction force, so that the guide rods 4 can more stably guide the assembly path of the motor rotor 5-2.

[0045] [[ID=I1]]Refer to Figure 1 , in order to make the guiding support 2 more stably limit and fix the guide rods 4, a limiting shoulder is provided on the outer edge of the guiding support 2, and the opening edge of the speed reducer housing 1 is inserted and matched into the limiting shoulder. The limiting shoulder can first radially position the guiding support 2 relative to the speed reducer housing Ⅰ, facilitating the alignment of the screw holes on the guiding support 2 and the speed reducer housing 1 and improving the convenience of installing the guiding support 2. And the limiting shoulder can also bear a part of the force transmitted from the guide rod 4 to the guiding support 2 to assist the bolt 5-5, further improving the guiding stability of the guide rod 4.

[0046] The guide rod 4 includes three segmented rods. The three segmented rods are fixedly connected with the same central axis, and the coaxiality requirements between the journal necks of the three segmented rods are high. Compared with the integral design, dividing the guide rod 4 into three segmented rods reduces the possibility of the guide rod 4 bending and deforming, thus enabling the guide rod 4 to more stably guide the assembly of the motor rotor 5-2. And only the middle segmented rod needs to be precisely matched with the through holes of the motor rotor 5-2 and the support plate 5-1 to ensure the accuracy of the assembly between the motor rotor 5-2 and the motor stator 3. The requirements for the machining precision of the other two segmented rods can be appropriately relaxed, which can save the machining cost to a certain extent.

[0047] The implementation principle of the assembly tooling for a large vertical mill permanent magnet semi-direct drive motor in an embodiment of the present invention is as follows: The guiding support 2 and the reducer housing 1 cooperate to limit and fix the guide rod 4. During the assembly process, the guide rod 4 can ensure that the motor rotor assembly 5 is completely centered during the falling assembly process, reducing the magnetic attraction force generated due to the non-concentricity between the motor stator 3 and the motor rotor assembly 5. At the same time, the guide rod 4 can completely withstand the magnetic attraction force generated between the motor stator 3 and the motor rotor assembly 5 without deformation, avoiding the occurrence of magnetic steel damage caused by the contact between the motor stator 3 and the motor rotor 5-2 due to the magnetic attraction force. The above-mentioned assembly process does not require auxiliary equipment, can be assembled in place at one time, and does not require the additional purchase of a stator-rotor assembly machine, significantly improving the convenience of assembling the motor stator 3 and the motor rotor 5-2 of the large permanent magnet motor, and at the same time greatly reducing the assembly cost.

[0048] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An assembly tooling for a permanent magnet semi-direct drive motor of a large vertical mill, characterized in that: It includes a guiding support (2) and at least two guide rods (4). The guide rods (4) can be installed on the bottom wall of the reducer housing (1), and when the guide rods (4) are installed on the reducer housing (1), they are parallel to the axis of the motor stator (3) inside the reducer housing (1); hoisting holes (21) and insertion holes (22) corresponding in number and size to the guide rods (4) are respectively formed on the guiding support (2). The guiding support (2) can be sleeved on the motor main shaft (5-4) of the motor rotor assembly (5) through the hoisting holes (21) and placed on the motor rotor assembly (5); the guiding support (2) can be fixedly installed on the upper opening edge of the reducer housing (1), and the guide rods (4) can be inserted into the corresponding insertion holes (22); an installation operation hole (23) for the motor rotor assembly is further formed on the guiding support (2).

2. An assembly tooling for a large vertical mill permanent magnet semi-direct drive motor according to claim 1, wherein the motor rotor assembly (5) includes a motor main shaft (5-4), a support plate (5-1) sleeved and rotatably connected to the motor main shaft (5-4), and a motor rotor (5-2) fixed to the motor main shaft (5-4), and the support plate (5-1) is used for fixedly installing on the inner wall of the reducer housing (1), and is characterized in that: Through holes corresponding in number and size to the guide rods (4) are formed on both the motor rotor (5-2) and the support plate (5-1). The guide rods (4) pass through the corresponding through holes on the motor rotor (5-2) and the support plate (5-1) at the same time; the diameter of the hoisting hole (21) is larger than the diameter of the motor main shaft (5-4) and smaller than the diameter of the support plate (5-1).

3. An assembly tooling for a large vertical mill permanent magnet semi-direct drive motor according to any one of claims 1 or 2, characterized in that: Screw holes are formed on the bottom wall of the reducer housing (1). One end of the guide rod (4) is provided with a thread. The guide rod (4) is inserted into the screw hole and threadedly connected to the reducer housing (1).

4. The assembly tooling for a large vertical mill permanent magnet semi-direct drive motor according to claim 3, characterized in that: Step shoulders are provided at both ends of the guide rod (4). The opening edge of the screw hole of the reducer housing (1) is inserted and matched with the step shoulder at one end of the guide rod (4), and the opening edge of the insertion hole (22) of the guiding support (2) is inserted and matched with the step shoulder at the other end of the guide rod (4).

5. The assembly tooling for a large vertical mill permanent magnet semi-direct drive motor according to claim 2, characterized in that: The guide rod (4) is coaxially fixed by three segmented rods. The uppermost segmented rod is installed on the guiding support (2), the middle segmented rod is in precise fit with the through holes of the motor rotor (5-2) and the support plate (5-1), and the lowermost segmented rod is installed on the bottom wall of the reducer housing (1).

6. An assembly tooling for a large vertical mill permanent magnet semi-direct drive motor according to any one of claims 1 or 2, characterized in that: The guiding support (2) is lapped and fixedly installed on the opening edge of the reducer housing (1) through a plurality of bolts (5-5).

7. The assembly tooling for a large vertical mill permanent magnet semi-direct drive motor according to claim 6, characterized in that: A limiting step is provided on the outer edge of the guiding support (2). The opening edge of the reducer housing (1) is inserted and matched into the limiting step.

8. An assembly tooling for a large vertical mill permanent magnet semi-direct drive motor according to claim 1, characterized in that: The number of the guide rods is 2 - 4.

9. An assembly tooling for a large vertical mill permanent magnet semi-direct drive motor according to claim 1, characterized in that: The diameter range of the installation operation hole (23) for the motor rotor assembly is 40 - 70 cm.

10. The assembly tooling for a large vertical mill permanent magnet semi-direct drive motor according to claim 2, characterized in that: A lifting ring is fixedly installed on the motor main shaft (5-4).

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