A method for assembling a magnetic pole module on a rotor support

Abstract

The invention discloses a method for assembling a magnetic pole module on a rotor support, comprising pushing a plurality of magnetic pole modules onto a rotor support through a magnetic steel pushing device; the magnetic steel pushing device comprises a transmission mechanism, a magnetic steel assembly base and a clamping device; a connecting ear is arranged on the magnetic steel assembly base; an upper tooling pressure plate is slidably connected to the magnetic steel assembly base, a baffle is clamped to the magnetic steel assembly base, an upper tooling pressure plate, a plurality of magnetic pole modules and a lower tooling pressure plate are sequentially connected from top to bottom through a product screw; the clamping device is slidably connected to the magnetic steel assembly base; a push rod is used to move downward under the drive of a transmission mechanism and then exert a downward thrust on the upper tooling pressure plate, a plurality of magnetic pole modules and a lower tooling pressure plate, and finally push the upper tooling pressure plate, a plurality of magnetic pole modules and a lower tooling pressure plate onto the rotor support. The invention can overcome the strong repulsive force between magnetic pole modules, push a plurality of magnetic pole modules onto the rotor support after being closely fitted, and prevent the magnetic pole modules from flipping during the assembly process, with high safety.

Description

Technical Field

[0001] The invention belongs to the technical field of magnetic pole module assembly, and is used for integrally forming and installing magnetic pole modules of rotor magnetic poles in the assembly process of a medium-speed permanent magnet generator, and specifically is a method for assembling magnetic pole modules on a rotor bracket. Background Art

[0002] In the manufacturing process of medium-speed permanent magnet generators, the assembly of magnetic pole modules has always been a difficult and dangerous process. The magnetic pole modules are formed by installing magnetic steel in the pole box. The main structure of the rotor magnetic poles of the existing medium-speed permanent magnet generator is: several magnetic pole modules are integrally fitted and connected in series through square screws, and fixed to the rotor bracket by fasteners to form a row of magnetic poles, and the magnetic properties of adjacent magnetic poles are opposite.

[0003] At present, the main difficulty in assembling magnetic poles is that the magnetic pole modules have strong magnetism, and adjacent magnetic pole modules have strong repulsive force, making it difficult for the magnetic pole modules to stick together, resulting in difficulty in forming the entire pole; during the assembly process, the magnetic pole modules are prone to adsorption with other metal structures, and the repulsive force between the magnetic poles is too large to easily cause flipping, creating a safety hazard.

[0004] Therefore, it is necessary to provide a method for assembling a magnetic pole module on a rotor bracket to solve the above technical problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a method for assembling magnetic pole modules on a rotor bracket in view of the deficiencies of the above-mentioned prior art. The method for assembling magnetic pole modules on a rotor bracket can overcome the strong repulsive force between the magnetic pole modules, and the upper tooling pressure plate, multiple magnetic pole modules and the lower tooling pressure plate are connected in series through the product screw and pushed onto the rotor bracket together. The magnetic pole modules can be prevented from flipping during the assembly process, and the safety is high.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is:

[0007] A method for assembling magnetic pole modules on a rotor support, wherein a plurality of connection holes evenly distributed along the circumferential direction of the rotor support are opened on the end surface of the rotor support, a magnetic steel pushing device is connected to the connection holes on the end surface of the rotor support through fasteners, and a plurality of magnetic pole modules are pushed onto the rotor support through the magnetic steel pushing device;

[0008] The magnetic steel pushing device includes a transmission mechanism, a magnetic steel assembly base, a clamping device, an upper tooling pressure plate, a lower tooling pressure plate and a baffle;

[0009] The magnetic steel assembly base comprises a bottom plate, an L-shaped left plate and an L-shaped right plate, the left side of the bottom plate is fixedly connected to the left plate and the lower end of the left plate protrudes from the lower end of the bottom plate, the right side is fixedly connected to the right plate and the lower end of the right plate protrudes from the lower end of the bottom plate, the inner surface of the bottom plate is arc-shaped, the middle part of the inner surface of the bottom plate is provided with a first strip slide groove extending along the length direction of the bottom plate and passing through the upper and lower ends of the bottom plate, the inner surface of the bottom plate is provided with a plurality of mounting holes, the inner surface of the bottom plate is provided with a first clamping groove located below the plurality of mounting holes, the left and right plates are both provided with a second clamping groove, the first clamping groove and the second clamping groove are located at the same height, the left and right plates are both provided with connecting ears for connecting with the end surface of the rotor bracket, the middle and upper parts of the left and right plates are both provided with notches for placing magnetic pole modules, and the left and right plates are both provided with a second strip slide groove;

[0010] The top of the magnetic steel assembly base is connected to a mounting platform, the transmission mechanism is connected to the mounting platform, the transmission mechanism is connected to a push rod and is used to drive the push rod to move up and down in a straight line, the push rod passes through a reserved through hole on the mounting platform and can move up and down in the reserved through hole on the mounting platform, and the push rod is located above the upper tooling plate, the lower tooling plate and the baffle;

[0011] The pressing plate slider on the upper tooling pressing plate is slidably connected with the first strip-shaped sliding groove on the bottom plate, and the baffle is simultaneously engaged with the first clamping groove on the bottom plate, the second clamping groove on the left plate, and the second clamping groove on the right plate, and the baffle is also provided with an opening for the product screw to pass through;

[0012] The clamping device is slidably connected to the second strip-shaped slide grooves on the left plate and the right plate, and the clamping device is used to clamp the magnetic pole module located on the magnetic steel assembly base;

[0013] The assembly method specifically includes:

[0014] Assume that the rotor support includes M rows of magnetic poles in the circumferential direction, and each row of magnetic poles includes N magnetic pole modules;

[0015] Step A:

[0016] Lift the bottom plate of the magnetic steel pushing device onto the end surface of the rotor bracket, and use fasteners to connect the connecting ears on the magnetic steel pushing device to the connecting holes on the end surface of the rotor bracket, ensuring that the arc-shaped inner surface of the bottom plate is flush with the arc-shaped outer surface of the rotor bracket, and the first strip-shaped slide groove on the bottom plate and one of the slide grooves on the rotor bracket are located on the same straight line;

[0017] Start the transmission mechanism, move the push rod to the highest position, clamp the baffle plate to the magnetic steel assembly base, and place the lower tooling pressure plate on the baffle plate;

[0018] Place the first magnetic pole module into the magnetic steel assembly base through the notches on the left plate and the right plate in the magnetic steel assembly base, slide the first magnetic pole module along the space between the bottom plate, the left plate and the right plate to the lower tooling plate, use the product screw to pass through the first magnetic pole module, the lower tooling plate and the baffle from top to bottom in sequence, and then connect the nut at the bottom of the product screw, wherein the opening size on the baffle is larger than the nut size; at this time, the mounting hole on the bottom plate is aligned with the reserved hole on the first magnetic pole module, and the mounting hole on the bottom plate is connected with the reserved hole on the first magnetic pole module using fasteners;

[0019] Put the second magnetic pole module into the magnetic steel assembly base through the notches on the left plate and the right plate of the magnetic steel assembly base, and at the same time, the product screw penetrates the second magnetic pole module, and the transmission mechanism is started to move the push rod downward to press the second magnetic pole module, so that the second magnetic pole module is tightly fitted with the first magnetic pole module, and one of the pressing devices is used to press the second magnetic pole module, and then the transmission mechanism is started to move the push rod to the highest position;

[0020] Put the third magnetic pole module into the magnetic steel assembly base through the notches on the left plate and the right plate of the magnetic steel assembly base, and at the same time, the product screw penetrates the third magnetic pole module, and the transmission mechanism is started to move the push rod downward to press the third magnetic pole module, so that the third magnetic pole module is tightly fitted with the second magnetic pole module, and another pressing device is used to press the third magnetic pole module, and then the transmission mechanism is started to move the push rod to the highest position;

[0021] Place the ath magnetic pole module into the magnetic steel assembly base through the notches on the left plate and the right plate in the magnetic steel assembly base, and at the same time, the product screw penetrates the ath magnetic pole module, start the transmission mechanism, move the push rod downward to press the ath magnetic pole module, so that the ath magnetic pole module and the a-1th magnetic pole module fit tightly, release the clamping device that presses the a-2th magnetic pole module, and then press the ath magnetic pole module, then start the transmission mechanism and move the push rod to the highest point; if the mounting hole on the bottom plate is aligned with the reserved hole on the ath magnetic pole module, use fasteners to connect the mounting hole on the bottom plate with the reserved hole on the ath magnetic pole module; a is an integer greater than 3 and less than or equal to N;

[0022] After the N magnetic pole modules are tightly fitted in the magnetic steel assembly base, the upper tooling pressure plate is installed on the magnetic steel assembly base, the pressure plate slider on the upper tooling pressure plate is slidably connected with the first strip-shaped slide groove on the bottom plate, the top of the product screw passes through the upper tooling pressure plate, and the nut is connected to the top of the product screw, so that the upper tooling pressure plate, the N magnetic pole modules and the lower tooling pressure plate are tightly connected, loosen all clamping devices, remove the fasteners between the mounting holes on the bottom plate and the reserved holes on the magnetic pole modules, and remove the baffle;

[0023] Start the transmission mechanism to move the push rod downward, and then push the upper tooling pressure plate, N magnetic pole modules and the lower tooling pressure plate along the magnetic steel assembly base onto the rotor bracket;

[0024] Connect the reserved hole on the first magnetic pole module among the N magnetic pole modules to the fixing hole on the rotor bracket through fasteners, connect the reserved hole on the Nth magnetic pole module among the N magnetic pole modules to the fixing hole on the rotor bracket through fasteners, determine the reserved holes on the magnetic pole module that are aligned with the remaining fixing holes on the rotor bracket, and use fasteners to connect the remaining fixing holes on the rotor bracket to the reserved holes on the magnetic pole module;

[0025] Remove the fasteners between the connecting ears on the magnetic steel pushing device and the connecting holes on the end surface of the rotor support, and lift the magnetic steel pushing device to another position on the end surface of the rotor support to prepare for installing the next row of magnetic poles on the rotor support;

[0026] Loosen the nuts at both ends of the product screw, remove the upper and lower tooling pressure plates, and pass both ends of the product screw through pressure plate 1 and pressure plate 2 respectively, and then lock and connect them with nuts;

[0027] At this point, the first row of magnetic poles on the rotor bracket is installed;

[0028] Step B:

[0029] According to the method in step A, all M rows of magnetic poles in the circumferential direction of the rotor bracket are installed;

[0030] Each row of magnetic poles on the rotor bracket includes a pressure plate 1, N magnetic pole modules, a pressure plate 2 and two product screws.

[0031] As a further improved technical solution of the present invention, the lower end of the push rod is connected with a push plate.

[0032] As a further improved technical solution of the present invention, six mounting holes are provided on the inner surface of the bottom plate.

[0033] As a further improved technical solution of the present invention, the two plate edges of the upper tooling pressure plate are both arc-shaped plate edges, a pressure plate slider is provided on one of the inwardly bent arc-shaped plate edges of the upper tooling pressure plate, and an upper pressure plate through hole is opened on the upper tooling pressure plate for the product screw to pass through.

[0034] As a further improved technical solution of the present invention, the two plate edges of the lower tooling pressure plate are both arc-shaped plate edges, and a lower pressure plate through hole is opened on the lower tooling pressure plate for the product screw to pass through.

[0035] As a further improved technical solution of the present invention, the two plate edges of the baffle are both arc-shaped plate edges, and a clamping block is provided on one of the inwardly bent arc-shaped plate edges of the baffle, the clamping block on the baffle is clamped with the first clamping slot on the bottom plate, the left side edge of the baffle is clamped with the second clamping slot on the left side plate, and the right side edge of the baffle is clamped with the second clamping slot on the right side plate.

[0036] As a further improved technical solution of the present invention, the clamping device includes a fastening bracket, a clamping screw, a torsion bar and a copper sleeve, the fastening bracket includes a left bracket, a right bracket and a cross bracket, the left side of the cross bracket is fixedly connected to the left bracket, and the right side is fixedly connected to the right bracket, the left bracket and the right bracket are both inclined inwardly, the inner side surface of the left bracket is provided with a third slot so that the left bracket is slidably connected to the second strip slide groove on the left plate, the inner side surface of the right bracket is provided with a third slot so that the right bracket is slidably connected to the second strip slide groove on the right plate, the middle part of the cross bracket is provided with a bracket through hole, the copper sleeve is located in the bracket through hole and is fixedly connected to the cross bracket by bolts, the clamping screw is threadedly connected to the copper sleeve, and one end of the clamping screw is rotatably connected to a clamping head, and the other end of the clamping screw is connected to the torsion bar.

[0037] As a further improved technical solution of the present invention, the fastening bracket, the clamping screw and the torsion bar are all made of 304 stainless steel.

[0038] As a further improved technical solution of the present invention, the transmission mechanism adopts a worm gear screw lift, the push rod is the screw in the worm gear screw lift, and the worm gear screw lift is used to drive the screw therein to move linearly up and down.

[0039] The beneficial effects of the present invention are:

[0040] The present invention can overcome the strong repulsive force between the pole modules, and press the multiple pole modules onto the baffle by pushing the push rod in the magnetic steel device, so that the adjacent pole modules fit tightly together. The pressing device in the magnetic steel device can press the pole module, fix the position of the pole module, and further ensure that the multiple pole modules fit tightly together. The present invention can also overcome the attraction between the pole module and the rotor bracket, and push the upper tooling pressure plate, multiple pole modules and the lower tooling pressure plate together onto the rotor bracket after being connected in series by the product screw. During the assembly process, the left and right plates of the magnetic steel assembly base have a guiding effect on the pole module, and the first strip slide groove on the magnetic steel assembly base has a guiding effect on the overall structure of the upper tooling pressure plate, multiple pole modules and the lower tooling pressure plate, which can effectively prevent the pole module from flipping over, and has high safety. The lower ends of the left plate and the right plate both protrude from the lower end of the bottom plate, and the lower end of the bottom plate is placed on the end face of the rotor bracket, so that when the pole module is pushed onto the rotor bracket, the left plate and the right plate have a blocking effect on the pole module, preventing the pole module from being adsorbed with the adjacent pole modules installed on the rotor bracket, which is safer.

[0041] The magnetic steel assembly base of the present invention cooperates with the magnetic pole module with a small gap to ensure that the position of each magnetic pole module is aligned when the magnetic steel is assembled. A mounting hole is opened at the bottom of the magnetic steel assembly base, which is on the same vertical line as the fixing hole on the rotor bracket, which ensures that the position of the magnetic pole module is fixed during the installation process, and can also ensure that after the magnetic pole module is integrally formed and pushed onto the rotor bracket, the reserved hole on a certain magnetic pole module is aligned with the relative position of the fixing hole of the rotor bracket. The magnetic steel assembly base is equipped with an upper tooling pressure plate, a lower tooling pressure plate and a baffle. The upper tooling pressure plate, multiple magnetic pole modules, and the lower tooling pressure plate are connected by product screws, and the first strip slide in the middle of the magnetic steel assembly base is assisted to achieve the functions of assembly, guidance, and positioning.

[0042] Due to the strong repulsive force between the pole modules, it is necessary to fix the multiple pole modules that have been pushed to the magnetic steel assembly base during the process of pushing the magnet. This device uses the 6 mounting holes at the bottom of the magnetic steel assembly base to fix the pole modules through fasteners and uses 2 clamping devices to clamp the pole modules to achieve the fixation purpose. The clamping device can slide freely on the magnetic steel assembly base to ensure that the pole modules that need to be clamped can be clamped during the process of pushing the magnet. The clamping device uses a copper sleeve and a clamping screw for clamping. The clamping head uses a dome block. The dome block and the clamping screw rotate freely to ensure that they will not damage the anti-corrosion of the surface of the pole module. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the overall structure of the magnetic steel pushing device.

[0044] Figure 2 for Figure 1 Middle AA cross section.

[0045] Figure 3 Schematic diagram of the structure of the magnetic steel assembly base.

[0046] Figure 4 Side view of the base assembly for the magnet.

[0047] Figure 5 It is a structural schematic diagram of the push plate.

[0048] Figure 6 Schematic diagram of the structure of the baffle.

[0049] Figure 7 It is a structural schematic diagram of the upper tooling pressure plate.

[0050] Figure 8 It is a schematic diagram of the structure of the lower tooling pressure plate.

[0051] Fig. 9 A schematic diagram of the structure of the fastening bracket.

[0052] Fig.10 A top view of the fastening bracket.

[0053] Fig.11 This is a state diagram for the use of the push magnet device.

[0054] Fig.12 Schematic diagram of the pole module being installed on the rotor bracket. DETAILED DESCRIPTION

[0055] The specific embodiments of the present invention are further described below according to the accompanying drawings:

[0056] like Figure 1 As shown, this embodiment provides a magnetic steel pushing device, including a transmission mechanism 8, a magnetic steel assembly base 1, a clamping device 2, an upper tooling pressure plate 3, a lower tooling pressure plate 4 and a baffle 5.

[0057] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the magnetic steel assembly base 1 includes a bottom plate 1-1, an L-shaped left side plate 1-2 and an L-shaped right side plate 1-3. The left side of the bottom plate 1-1 is fixedly connected to the left side plate 1-2 and the lower end of the left side plate 1-2 protrudes from the lower end of the bottom plate 1-1, and the right side is fixedly connected to the right side plate 1-3 and the lower end of the right side plate 1-3 protrudes from the lower end of the bottom plate 1-1. The inner surface of the bottom plate 1-1 is arc-shaped, and the middle part of the inner surface of the bottom plate 1-1 is provided with a first strip-shaped slide groove 1-7 extending along the length direction of the bottom plate 1-1 and penetrating the upper and lower ends of the bottom plate 1-1. Six mounting holes 1-5 are provided on the inner surface of the bottom plate 1-1. A first card slot 1-9 located below the six mounting holes 1-5 is provided on the inner surface of the bottom plate 1-1, and a second card slot 1-8 is provided on both the left side plate 1-2 and the right side plate 1-3, and the first card slot 1-9 and the second card slot 1-8 are located at the same height. The left side plate 1-2 and the right side plate 1-3 are both provided with connecting ears 1-6 for connecting with the end surface of the rotor bracket 9, and the lower end surface of the connecting ears 1-6 is flush with the lower end surface of the bottom plate 1-1; the middle and upper parts of the left side plate 1-2 and the right side plate 1-3 are both provided with slots 1-4 for placing the magnetic pole module 10, and the left side plate 1-2 and the right side plate 1-3 are both provided with second strip-shaped slide grooves 1-10 for sliding connection with the clamping device 2, and the second strip-shaped slide grooves 1-10 do not pass through the lower ends of the left side plate 1-2 and the right side plate 1-3, but pass through the upper ends of the left side plate 1-2 and the right side plate 1-3. When the magnetic pole module 10 is placed into the magnetic steel assembly base 1 from the slot 1-4, the magnetic pole module 10 is embedded in the bottom plate 1-1, the L-shaped left side plate 1-2 and the L-shaped right side plate 1-3 with a small gap, and the magnetic pole module 10 can slide between the bottom plate 1-1, the L-shaped left side plate 1-2 and the L-shaped right side plate 1-3.

[0058] The top of the magnetic steel assembly base 1 is fixedly connected to the mounting platform 7 by fasteners, and the transmission mechanism 8 is fixedly connected to the mounting platform 7 by fasteners. The transmission mechanism 8 is connected to the push rod 8-1 and is used to drive the push rod 8-1 to move up and down linearly. The push rod 8-1 passes through the reserved through hole on the mounting platform 7 and is connected to the push plate 6 (such as Figure 5 As shown) are connected by fasteners, and the push plate 6 is located on the inner side of the magnetic steel assembly base 1.

[0059] The upper tooling pressing plate 3 is slidably connected with the first strip-shaped slide groove 1-7 on the bottom plate 1-1, and the baffle plate 5 is simultaneously engaged with the first clamping groove 1-9 on the bottom plate 1-1, the second clamping groove 1-8 on the left side plate 1-2, and the second clamping groove 1-8 on the right side plate 1-3. The baffle plate 5 is also provided with an opening 5-2 for the product screw 11 to pass through.

[0060] The upper tooling platen 3 , the plurality of magnetic pole modules 10 and the lower tooling platen 4 are sequentially connected in series from top to bottom through the product screw 11 .

[0061] The clamping device 2 is slidably connected to the second strip slide groove 1-10 on the left plate 1-2 and the second strip slide groove 1-10 on the right plate 1-3, and the clamping device 2 is used to clamp the magnetic pole module 10 located on the magnetic steel assembly base 1.

[0062] The push plate 6 is located above the upper tooling pressure plate 3, and the push rod 8-1 is used to drive the push plate 6 to move downward under the drive of the transmission mechanism 8, thereby applying a downward thrust to the upper tooling pressure plate 3, multiple magnetic pole modules 10 and the lower tooling pressure plate 4, and finally pushing the upper tooling pressure plate 3, multiple magnetic pole modules 10 and the lower tooling pressure plate 4 onto the rotor bracket 9.

[0063] In this embodiment, Figure 7 As shown, the two plate edges of the upper tooling pressure plate 3 are both arc-shaped plate edges, and a pressure plate slider 3-1 is provided in the middle of an inwardly bent arc-shaped plate edge of the upper tooling pressure plate 3. The pressure plate slider 3-1 is slidably connected to the first strip slide groove 1-7 on the bottom plate 1-1, and an upper pressure plate through hole 3-2 is opened on the upper tooling pressure plate 3 for the circular end of the product screw 11 to pass through.

[0064] In this embodiment, Figure 8 As shown, the two plate edges of the lower tooling pressing plate 4 are both arc-shaped plate edges, and the lower tooling pressing plate 4 is provided with a lower pressing plate through hole 4 - 1 for the circular end of the product screw 11 to pass through.

[0065] In this embodiment, Figure 6 As shown, both sides of the baffle plate 5 are arc-shaped sides, and a clamping block 5-1 is provided in the middle of one of the inwardly bent arc-shaped sides of the baffle plate 5, the clamping block 5-1 on the baffle plate 5 is clamped with the first clamping groove 1-9 on the bottom plate 1-1, the left side of the baffle plate 5 is clamped with the second clamping groove 1-8 on the left side plate 1-2, and the right side of the baffle plate 5 is clamped with the second clamping groove 1-8 on the right side plate 1-3.

[0066] In this embodiment, the clamping device 2 includes a fastening bracket 2-1, a clamping screw 2-2, a torsion bar 2-5 and a copper sleeve 2-3. Fig. 9 and Fig.10As shown, the fastening bracket 2-1 includes a left bracket 2-1-1, a right bracket 2-1-2 and a transverse bracket 2-1-3. The left side of the transverse bracket 2-1-3 is fixedly connected to the left bracket 2-1-1, and the right side is fixedly connected to the right bracket 2-1-2. The left bracket 2-1-1 and the right bracket 2-1-2 are both tilted inwardly. The inner side of the left bracket 2-1-1 is provided with a third card slot 2-1-5 so that the left bracket 2-1-1 is slidably connected to the second strip slide slot 1-10 on the left side plate 1-2. The inner side of the right bracket 2-1-2 The third slot 2-1-5 is provided on the surface so that the right bracket 2-1-2 is slidably connected with the second strip-shaped slide slot 1-10 on the right side plate 1-3. A bracket through hole 2-1-4 is provided in the middle of the horizontal bracket 2-1-3. The copper sleeve 2-3 is located in the bracket through hole 2-1-4 and the copper sleeve 2-3 is fixedly connected to the horizontal bracket 2-1-3 by bolts. The clamping screw 2-2 is threadedly connected with the copper sleeve 2-3, and one end of the clamping screw 2-2 is rotatably connected with a clamping head 2-4, and the other end of the clamping screw 2-2 is connected with a torsion bar 2-5. Twisting the torsion bar 2-5, the clamping screw 2-2 moves downward along the copper sleeve 2-3, and the clamping head 2-4 will clamp the magnetic pole module 10.

[0067] In this embodiment, the transmission mechanism 8 adopts a worm gear screw lift, and the push rod 8-1 is a screw in the worm gear screw lift, and the worm gear screw lift is used to drive the screw therein to move linearly up and down. The motor in the transmission mechanism 8 provides sufficient power to ensure that there is enough torque to make the magnetic pole module 10 close in the process of pushing the magnetic steel. The motor in the transmission mechanism 8 has forward and reverse rotation and emergency stop functions.

[0068] The magnetic steel assembly base 1 in this embodiment is matched with the magnetic pole module 10 with a small gap to ensure that the position of each magnetic pole module 10 is aligned during assembly. The bottom of the magnetic steel assembly base 1 is provided with mounting holes 1-5. When the connecting ears 1-6 on the magnetic steel assembly base 1 are connected to the end face of the rotor bracket 9 through fasteners (the end face of the rotor bracket 9 is provided with a plurality of connecting holes evenly distributed along its circumferential direction, and the two connecting ears 1-6 on the push magnetic steel device are connected to the two connecting holes on the end face of the rotor bracket 9 through fasteners), there are three mounting holes. The hole 1-5 is on the same straight line with the three fixing holes 9-1 on the rotor bracket 9, and the other three mounting holes 1-5 are on the same straight line with the other three fixing holes 9-1 on the rotor bracket 9. The mounting holes 1-5 on the magnetic steel assembly base 1 can be connected with the magnetic pole module 10 through fasteners, which can ensure that the position of the magnetic pole module 10 is fixed during the push-installation process, and can also ensure that after the magnetic pole module 10 is integrally formed and pushed onto the rotor bracket 9, the relative position of the holes on the magnetic pole module 10 and the fixing holes 9-1 of the rotor bracket 9 are aligned correctly. The magnetic steel assembly base 1 is equipped with an upper tooling plate 3, a lower tooling plate 4 and a baffle 5. The upper tooling plate 3, the magnetic pole module 10 and the lower tooling plate 4 are connected through a product screw 11 (the two ends of the product screw 11 are round threaded rods, and the rest of the parts are square), and the first strip-shaped slide groove 1-7 in the middle of the magnetic steel assembly base 1 is assisted to achieve the functions of assembly, guidance and positioning. The magnetic pole box in the magnetic pole module 10 is provided with a square hole for the product screw 11 to pass through.

[0069] Due to the strong repulsive force between the pole modules 10, it is necessary to fix the multiple pole modules 10 that have been pushed to the magnetic steel assembly base 1 during the process of pushing the magnetic steel, so that the multiple pole modules 10 always keep a close fit. This device uses the 6 mounting holes 1-5 opened on the magnetic steel assembly base 1 to fix the pole modules 10 through fasteners and uses 2 clamping devices 2 to clamp the pole modules 10 to achieve the fixing purpose. The clamping device 2 is made of 304 stainless steel as a whole. By assembling the third card slots 2-1-5 on both sides of the fastening bracket 2-1 with the magnetic steel assembly base 1, free sliding on the magnetic steel assembly base 1 can be achieved, ensuring that the pole module 10 can be clamped during the process of pushing the magnetic steel. The clamping part structure uses a copper sleeve 2-3 to cooperate with a clamping screw 2-2 for clamping, and the clamping head 2-4 uses a dome block. The dome block and the clamping screw 2-2 rotate freely to ensure that it will not cause damage to the surface corrosion of the pole module 10 during clamping.

[0070] like Fig.11As shown, the rotor bracket 9 in this embodiment is provided with a plurality of slide grooves 9-2, and a row of magnetic poles needs to be installed on each slide groove 9-2. When the two connecting ears 1-6 on the pushing magnet device are fixedly connected to the end surface of the rotor bracket 9, it is necessary to ensure that a slide groove 9-2 on the rotor bracket 9 is aligned with the first strip slide groove 1-7 on the base plate 1-1, so as to further ensure that the installation position of the magnetic pole module 10 on the stator bracket 9 is accurate.

[0071] This embodiment also provides a method for assembling a magnetic pole module on a rotor support, which specifically includes:

[0072] Assume that the rotor support 9 of this embodiment includes M rows of magnetic poles in the circumferential direction, and each row of magnetic poles includes N magnetic pole modules 10;

[0073] Step A:

[0074] Lift the bottom plate 1-1 of the magnetic steel pushing device onto the end surface of the rotor bracket 9, and use fasteners to connect the two connecting ears 1-6 on the magnetic steel pushing device with the two connecting holes on the end surface of the rotor bracket 9, ensuring that the arc-shaped inner surface of the bottom plate 1-1 is flush with the arc-shaped outer surface of the rotor bracket 9, and the first strip-shaped slide groove 1-7 on the bottom plate 1-1 and one of the slide grooves 9-2 on the rotor bracket 9 are located on the same straight line;

[0075] Start the transmission mechanism 8, move the push rod 8-1 to the highest position, clamp the baffle 5 onto the magnetic steel assembly base 1, and place the lower tooling pressure plate 4 on the baffle 5;

[0076] Place the first magnetic pole module 10 on the magnetic steel assembly base 1 through the notch 1-4 on the left plate 1-2 and the notch 1-4 on the right plate 1-3 in the magnetic steel assembly base 1, slide the first magnetic pole module 10 along the space between the bottom plate 1-1, the left plate 1-2 and the right plate 1-3 to the lower tooling plate 4, use the product screw 11 to pass through the first magnetic pole module 10, the lower plate through hole 4-1 of the lower tooling plate 4 and the opening 5-2 on the baffle 5 from top to bottom, and then connect the nut at the bottom of the product screw 11, wherein the size of the opening 5-2 on the baffle 5 is larger than the size of the nut; at this time, the two mounting holes 1-5 on the bottom plate 1-1 are aligned with the two reserved holes on the first magnetic pole module 10, and the two mounting holes 1-5 on the bottom plate 1-1 are connected with the two reserved holes on the first magnetic pole module 10 using fasteners;

[0077] The second magnetic pole module 10 is placed on the magnetic steel assembly base 1 through the notches 1-4 on the left plate 1-2 and the notches 1-4 on the right plate 1-3 in the magnetic steel assembly base 1, and the product screw 11 passes through the second magnetic pole module 10. Since there is a repulsive force between the second magnetic pole module 10 and the first magnetic pole module 10, the transmission mechanism 8 is started to move the push rod 8-1 downward to press the second magnetic pole module 10, so that the second magnetic pole module 10 is tightly fitted with the first magnetic pole module 10. One of the clamping devices 2 is used to press the second magnetic pole module 10, so that the position of the second magnetic pole module 10 is fixed, which further ensures that the second magnetic pole module 10 is tightly fitted with the first magnetic pole module 10. Then the transmission mechanism 8 is started to move the push rod 8-1 to the highest point;

[0078] The third magnetic pole module 10 is placed on the magnetic steel assembly base 1 through the notches 1-4 on the left plate 1-2 and the notches 1-4 on the right plate 1-3 in the magnetic steel assembly base 1, and the product screw 11 passes through the third magnetic pole module 10. The transmission mechanism 8 is started to move the push rod 8-1 downward to press the third magnetic pole module 10, so that the third magnetic pole module 10 is tightly fitted with the second magnetic pole module 10. Another pressing device 2 is used to press the third magnetic pole module 10 so that the position of the third magnetic pole module 10 is fixed. Then the transmission mechanism 8 is started to move the push rod 8-1 to the highest position.

[0079] The a-th magnetic pole module 10 is placed on the magnetic steel assembly base 1 through the notches 1-4 on the left plate 1-2 and the notches 1-4 on the right plate 1-3 in the magnetic steel assembly base 1, and the product screw 11 passes through the a-th magnetic pole module 10 at the same time, and the transmission mechanism 8 is started to move the push rod 8-1 downward to press the a-th magnetic pole module 10, so that the a-th magnetic pole module 10 is tightly fitted with the a-1-th magnetic pole module 10, and the clamping device 2 that presses the a-2-th magnetic pole module 10 is released to press the a-th magnetic pole module 10, so that the position of the a-th magnetic pole module 10 is fixed, and then the transmission mechanism 8 is started to move the push rod 8-1 to the highest point; if the mounting hole 1-5 on the bottom plate 1-1 is aligned with the reserved hole on the a-th magnetic pole module 10, the mounting hole 1-5 on the bottom plate 1-1 is connected with the reserved hole on the a-th magnetic pole module 10 using a fastener; a is an integer greater than 3 and less than or equal to N;

[0080] When the N magnetic pole modules 10 are tightly fitted and fixed in the magnetic steel assembly base 1, the upper tooling pressure plate 3 is installed on the magnetic steel assembly base 1, and the pressure plate slider 3-1 on the upper tooling pressure plate 3 is slidably connected with the first strip slide groove 1-7 on the bottom plate 1-1, and the top of the product screw 11 passes through the upper pressure plate through hole 3-2 of the upper tooling pressure plate 3, and a nut is connected to the top of the product screw 11, so that the upper tooling pressure plate 3, the N magnetic pole modules 10 and the lower tooling pressure plate 4 are tightly connected, loosen all the clamping devices 2, remove the fasteners between the mounting hole 1-5 on the bottom plate 1-1 and the reserved hole on the magnetic pole module 10, and remove the baffle 5;

[0081] Start the transmission mechanism 8, so that the push rod 8-1 moves downward and then pushes the upper tooling pressure plate 3, N magnetic pole modules 10 and the lower tooling pressure plate 4 along the first strip slide groove 1-7 on the magnetic steel assembly base 1 between the left plate 1-2 and the right plate 1-3 of the magnetic steel assembly base 1 to the rotor bracket 9; wherein the first strip slide groove 1-7 on the magnetic steel assembly base 1 between the left plate 1-2 and the right plate 1-3 of the magnetic steel assembly base 1 has a guiding function.

[0082] The reserved hole on the first magnetic pole module 10 among the N magnetic pole modules 10 is connected to the two fixing holes 9-1 on the rotor bracket 9 by means of fasteners (using bolts 14), the reserved hole on the Nth magnetic pole module 10 among the N magnetic pole modules 10 is connected to the other two fixing holes 9-1 on the rotor bracket 9 by means of fasteners, the reserved holes on the magnetic pole module 10 that are aligned with the last two fixing holes 9-1 on the rotor bracket 9 are determined, and the last two fixing holes 9-1 on the rotor bracket 9 are connected to the reserved holes on the magnetic pole module 10 by means of fasteners;

[0083] Remove the fasteners between the connecting ears 1-6 on the pushing magnet device and the connecting holes on the end surface of the rotor support 9, and lift the pushing magnet device to another position on the end surface of the rotor support 9 to prepare for installing the next row of magnetic poles on the rotor support 9;

[0084] Loosen the nuts at both ends of the product screw 11, disassemble the upper tooling pressure plate 3 and the lower tooling pressure plate 4, and respectively pass the two ends of the product screw 11 through the pressure plate 1 12 and the pressure plate 2 13 and then lock and connect them with nuts; Fig.12 As shown, the pressure plate 12 of this embodiment is located on the end surface of the rotor bracket 9.

[0085] At this point, the first row of magnetic poles on the rotor bracket 9 is installed;

[0086] Step B:

[0087] According to the method in step A, the M rows of magnetic poles in the circumferential direction of the rotor bracket 9 are installed.

[0088] like Fig.12As shown, each column of magnetic poles on the rotor support 9 includes a pressure plate 1 12 , N magnetic pole modules 10 , a pressure plate 2 13 and two product screws 11 .

[0089] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. A method for assembling a magnetic pole module on a rotor support, characterized in that: The end surface of the rotor bracket (9) is provided with a plurality of connection holes evenly distributed along its circumferential direction. After the magnetic steel pushing device is connected to the connection holes of the end surface of the rotor bracket (9) through fasteners, the plurality of magnetic pole modules (10) are pushed onto the rotor bracket (9) through the magnetic steel pushing device. The magnetic steel pushing device comprises a transmission mechanism (8), a magnetic steel assembly base (1), a pressing device (2), an upper tooling pressure plate (3), a lower tooling pressure plate (4) and a baffle (5); The magnetic steel assembly base (1) comprises a bottom plate (1-1), an L-shaped left side plate (1-2) and an L-shaped right side plate (1-3); the left side of the bottom plate (1-1) is fixedly connected to the left side plate (1-2) and the lower end of the left side plate (1-2) protrudes from the lower end of the bottom plate (1-1); the right side is fixedly connected to the right side plate (1-3) and the lower end of the right side plate (1-3) protrudes from the lower end of the bottom plate (1-1); the inner surface of the bottom plate (1-1) is arc-shaped; a first strip-shaped sliding groove (1-7) extending along the length direction of the bottom plate (1-1) and passing through the upper and lower ends of the bottom plate (1-1) is provided in the middle of the inner surface of the bottom plate (1-1); a plurality of mounting holes (1-5) are provided on the inner surface of the bottom plate (1-1) The inner surface of the bottom plate (1-1) is provided with a first card slot (1-9) located below the plurality of mounting holes (1-5); the left side plate (1-2) and the right side plate (1-3) are both provided with a second card slot (1-8); the first card slot (1-9) and the second card slot (1-8) are located at the same height; the left side plate (1-2) and the right side plate (1-3) are both provided with a connecting ear (1-6) for connecting to the end face of the rotor bracket (9); the middle and upper parts of the left side plate (1-2) and the right side plate (1-3) are both provided with a notch (1-4) for placing the magnetic pole module (10); and the left side plate (1-2) and the right side plate (1-3) are both provided with a second strip-shaped sliding slot (1-10); The top of the magnetic steel assembly base (1) is connected to a mounting platform (7), the transmission mechanism (8) is connected to the mounting platform (7), the transmission mechanism (8) is connected to a push rod (8-1) and is used to drive the push rod (8-1) to move linearly up and down, the push rod (8-1) passes through a reserved through hole on the mounting platform (7) and can move up and down in the reserved through hole on the mounting platform (7), and the push rod (8-1) is located above the upper tooling pressure plate (3), the lower tooling pressure plate (4) and the baffle (5); The pressure plate slider (3-1) on the upper tooling pressure plate (3) is slidably connected to the first strip-shaped sliding groove (1-7) on the bottom plate (1-1), and the baffle (5) is simultaneously engaged with the first clamping groove (1-9) on the bottom plate (1-1), the second clamping groove (1-8) on the left side plate (1-2), and the second clamping groove (1-8) on the right side plate (1-3). The baffle (5) is also provided with an opening (5-2) for allowing the product screw (11) to pass through. The pressing device (2) is slidably connected to the second strip-shaped chute (1-10) on the left side plate (1-2) and the right side plate (1-3), and the pressing device (2) is used to press the magnetic pole module (10) located on the magnetic steel assembly base (1); The assembly method specifically includes: Assume that the rotor support (9) includes M rows of magnetic poles in the circumferential direction, and each row of magnetic poles includes N magnetic pole modules (10); Step A: Lift the base plate (1-1) of the magnetic steel pushing device onto the end surface of the rotor bracket (9), and use fasteners to connect the connecting ear (1-6) on the magnetic steel pushing device to the connecting hole on the end surface of the rotor bracket (9), ensuring that the arc-shaped inner surface of the base plate (1-1) is flush with the arc-shaped outer surface of the rotor bracket (9), and that the first strip-shaped chute (1-7) on the base plate (1-1) and one of the chute (9-2) on the rotor bracket (9) are located on the same straight line; Start the transmission mechanism (8), move the push rod (8-1) to the highest point, clamp the baffle (5) onto the magnetic steel assembly base (1), and place the lower tooling pressure plate (4) on the baffle (5); The first magnetic pole module (10) is placed on the magnetic steel assembly base (1) through the notches (1-4) on the left plate (1-2) and the notches (1-4) on the right plate (1-3) in the magnetic steel assembly base (1). The first magnetic pole module (10) is slid onto the lower tooling pressure plate (4) along the space between the bottom plate (1-1), the left plate (1-2) and the right plate (1-3). The product screw (11) is passed through the first magnetic pole module (10), the lower tooling pressure plate (4) and the baffle (5) from top to bottom in sequence and then connected with a nut at the bottom of the product screw (11), wherein the size of the opening (5-2) on the baffle (5) is larger than the size of the nut. At this time, the mounting hole (1-5) on the bottom plate (1-1) is aligned with the reserved hole on the first magnetic pole module (10), and the mounting hole (1-5) on the bottom plate (1-1) is connected with the reserved hole on the first magnetic pole module (10) using fasteners. The second magnetic pole module (10) is placed on the magnetic steel assembly base (1) through the notches (1-4) on the left side plate (1-2) and the notches (1-4) on the right side plate (1-3) in the magnetic steel assembly base (1), and the product screw (11) passes through the second magnetic pole module (10). The transmission mechanism (8) is started to move the push rod (8-1) downward to press the second magnetic pole module (10) so that the second magnetic pole module (10) is tightly fitted with the first magnetic pole module (10). One of the pressing devices (2) is used to press the second magnetic pole module (10), and then the transmission mechanism (8) is started to move the push rod (8-1) to the highest position. The third magnetic pole module (10) is placed on the magnetic steel assembly base (1) through the notches (1-4) on the left side plate (1-2) and the notches (1-4) on the right side plate (1-3) in the magnetic steel assembly base (1), and the product screw (11) passes through the third magnetic pole module (10). The transmission mechanism (8) is started to move the push rod (8-1) downward to press the third magnetic pole module (10) so that the third magnetic pole module (10) and the second magnetic pole module (10) are tightly fitted. Another pressing device (2) is used to press the third magnetic pole module (10), and then the transmission mechanism (8) is started to move the push rod (8-1) to the highest position. The a-th magnetic pole module (10) is placed on the magnetic steel assembly base (1) through the notches (1-4) on the left side plate (1-2) and the notches (1-4) on the right side plate (1-3) in the magnetic steel assembly base (1). At the same time, the product screw (11) passes through the a-th magnetic pole module (10). The transmission mechanism (8) is started to move the push rod (8-1) downward to press the a-th magnetic pole module (10), so that the a-th magnetic pole module (10) and the a-1-th magnetic pole module (10) are tightly fitted. After loosening the pressing device (2) that presses the a-2 magnetic pole module (10), the a-2 magnetic pole module (10) is pressed, and then the transmission mechanism (8) is started to move the push rod (8-1) to the highest position; if the mounting hole (1-5) on the base plate (1-1) is aligned with the reserved hole on the a-2 magnetic pole module (10), the mounting hole (1-5) on the base plate (1-1) is connected with the reserved hole on the a-2 magnetic pole module (10) using a fastener; a is an integer greater than 3 and less than or equal to N; After the N magnetic pole modules (10) are tightly fitted in the magnetic steel assembly base (1), the upper tooling pressure plate (3) is installed on the magnetic steel assembly base (1), the pressure plate slider (3-1) on the upper tooling pressure plate (3) is slidably connected to the first strip-shaped slide groove (1-7) on the bottom plate (1-1), the top of the product screw (11) passes through the upper tooling pressure plate (3), and a nut is connected to the top of the product screw (11), so that the upper tooling pressure plate (3), the N magnetic pole modules (10) and the lower tooling pressure plate (4) are tightly connected, all the clamping devices (2) are loosened, the fasteners between the mounting holes (1-5) on the bottom plate (1-1) and the reserved holes on the magnetic pole modules (10) are removed, and the baffle (5) is removed; The transmission mechanism (8) is started to move the push rod (8-1) downward, thereby pushing the upper tooling pressure plate (3), N magnetic pole modules (10) and the lower tooling pressure plate (4) along the magnetic steel assembly base (1) onto the rotor bracket (9); Connecting the reserved hole on the first magnetic pole module (10) among the N magnetic pole modules (10) to the fixing hole (9-1) on the rotor bracket (9) through fasteners, connecting the reserved hole on the Nth magnetic pole module (10) among the N magnetic pole modules (10) to the fixing hole (9-1) on the rotor bracket (9) through fasteners, determining the reserved hole on the magnetic pole module (10) that is aligned with the remaining fixing holes (9-1) on the rotor bracket (9), and connecting the remaining fixing holes (9-1) on the rotor bracket (9) to the reserved holes on the magnetic pole module (10) using fasteners; Remove the fasteners between the connecting ears (1-6) on the pushing magnet device and the connecting holes on the end surface of the rotor bracket (9), and lift the pushing magnet device to another position on the end surface of the rotor bracket (9) to prepare for installing the next row of magnetic poles on the rotor bracket (9); Loosen the nuts at both ends of the product screw (11), remove the upper tooling pressure plate (3) and the lower tooling pressure plate (4), and insert both ends of the product screw (11) through the pressure plate 1 (12) and the pressure plate 2 (13) respectively, and then lock them together with nuts; At this point, the first row of magnetic poles on the rotor bracket (9) is installed; Step B: According to the method of step A, the M rows of magnetic poles in the circumferential direction of the rotor bracket (9) are all installed; Each row of magnetic poles on the rotor support (9) includes a first pressing plate (12), N magnetic pole modules (10), a second pressing plate (13) and two product screws (11).

2. The method for assembling a magnetic pole module on a rotor support according to claim 1, characterized in that: The lower end of the push rod (8-1) is connected to a push plate (6).

3. The method for assembling a magnetic pole module on a rotor support according to claim 1, wherein: Six mounting holes (1-5) are provided on the inner surface of the bottom plate (1-1).

4. The method for assembling a magnetic pole module on a rotor support according to claim 1, wherein: The two plate edges of the upper tooling pressure plate (3) are both arc-shaped plate edges, a pressure plate slider (3-1) is provided on one of the inwardly curved arc-shaped plate edges of the upper tooling pressure plate (3), and an upper pressure plate through hole (3-2) is provided on the upper tooling pressure plate (3) for the product screw (11) to pass through.

5. The method for assembling a magnetic pole module on a rotor support according to claim 4, characterized in that: The two plate edges of the lower tooling pressure plate (4) are both arc-shaped plate edges, and the lower tooling pressure plate (4) is provided with a lower pressure plate through hole (4-1) for the product screw (11) to pass through.

6. The method for assembling a magnetic pole module on a rotor support according to claim 5, characterized in that: Both plate edges of the baffle (5) are arc-shaped plate edges. A clamping block (5-1) is provided on one of the inwardly curved arc-shaped plate edges of the baffle (5). The clamping block (5-1) on the baffle (5) is clamped with a first clamping slot (1-9) on the bottom plate (1-1). The left side of the baffle (5) is clamped with a second clamping slot (1-8) on the left side plate (1-2). The right side of the baffle (5) is clamped with a second clamping slot (1-8) on the right side plate (1-3).

7. The method for assembling a magnetic pole module on a rotor support according to claim 1, characterized in that: The clamping device (2) comprises a fastening bracket (2-1), a clamping screw (2-2), a torsion bar (2-5) and a copper sleeve (2-3); the fastening bracket (2-1) comprises a left bracket (2-1-1), a right bracket (2-1-2) and a transverse bracket (2-1-3); the left side of the transverse bracket (2-1-3) is fixedly connected to the left bracket (2-1-1), and the right side is fixedly connected to the right bracket (2-1-2); the left bracket (2-1-1) and the right bracket (2-1-2) are both arranged to be tilted inwards; the inner side surface of the left bracket (2-1-1) is provided with a third card slot (2-1-5) so that the left bracket (2-1-1) and the second strip-shaped slide slot (1-1) on the left side plate (1-2) are aligned. 0) sliding connection, the inner side surface of the right bracket (2-1-2) is provided with a third card slot (2-1-5) so that the right bracket (2-1-2) is slidably connected to the second strip slide slot (1-10) on the right side plate (1-3), the middle part of the cross bracket (2-1-3) is provided with a bracket through hole (2-1-4), the copper sleeve (2-3) is located in the bracket through hole (2-1-4) and the copper sleeve (2-3) is fixedly connected to the cross bracket (2-1-3) by bolts, the clamping screw (2-2) is threadedly connected to the copper sleeve (2-3), and one end of the clamping screw (2-2) is rotatably connected to the clamping head (2-4), and the other end of the clamping screw (2-2) is connected to the torsion bar (2-5).

8. The method for assembling a magnetic pole module on a rotor support according to claim 7, wherein: The fastening bracket (2-1), the pressing screw (2-2) and the torsion bar (2-5) are all made of 304 stainless steel.

9. The method for assembling a magnetic pole module on a rotor support according to claim 1, characterized in that: The transmission mechanism (8) adopts a worm gear screw lift, and the push rod (8-1) is a screw in the worm gear screw lift, and the worm gear screw lift is used to drive the screw therein to move linearly up and down.

Images