Hoisting and overturning method for non-driving end cover of motor integrated with exciter stator

Abstract

The invention discloses a hoisting and overturning method for a non-driving end cover of a motor integrated with an exciter stator, which realizes that an eccentric end cover of which the gravity center moves forwards is in a vertical state after being hoisted, so that the eccentric end cover can smoothly enter an end spigot of a horizontal motor base; according to the invention, the two arc-shaped clamping plates are fixed on the outer circle of the non-driving end cover of the motor, and according to the position of the eccentric gravity center of the non-driving end cover of the motor with the exciter stator in a vertical state, the position of the hanging point pin column installed on the arc-shaped clamping plates is determined; the vertical plane where the connecting line of the two lifting point pin columns and the vertical line of the connecting line are located and the eccentric gravity center are located in the same vertical plane, so that the eccentric motor end cover can be stably in a vertical state after being lifted by the lifting appliance and turned over; operable conditions are created for follow-up butt joint installation of the eccentric end cover and an end cover spigot at the non-driving end of a horizontally-arranged machine base, the whole lifting appliance mechanism is simple and ingenious, the whole installation process is convenient and fast to operate, and the defect that an exciter stator on the end cover is prone to being damaged in the overturning installation process is overcome.

Description

Technical Field

[0001] The invention relates to a lifting and turning tool, in particular to a lifting and turning method for a non-driving end cover of a motor which is assembled with an exciter stator. Background Art

[0002] In the production and assembly process of generators, the stator assembly and rotor assembly are generally completed separately first, and then the stator is vertically assembled into the motor base through the thermal expansion method. Then, the rotor is inserted into the shell through vertical or horizontal assembly to complete the matching assembly of the motor rotor and the stator. Finally, the motor base is placed horizontally to complete the installation of the motor drive end cover and the non-drive end cover. In the above-mentioned motor assembly process, the motor end cover needs to be vertically assembled into the stoppers at both ends of the motor. For the end cover of a heavy large motor, the end cover is usually assembled by hoisting. It is necessary to first lay the horizontal end cover horizontally. The end cover on the ground is flipped into a vertical hoisting state, and the hoisted end cover is moved horizontally to move the end cover into the stopper at the end of the motor base. However, some motors have other mechanisms integrated on the non-drive end cover, and these mechanisms are fixedly connected to the inner side of the end cover in a cantilever manner, causing the center of gravity of the end cover with these mechanisms to move to the inside of the end cover, making it impossible for the end cover to be in a vertical upright state after being hoisted, and the operation of the end cover entering the stopper at the end of the motor base cannot be completed by using a translation hoisting device. How to design a hoisting tool to overcome this problem has become a difficult problem that needs to be solved on site.

[0003] The exciter of some large generators shares the same base with the main generator. The stator and coil of the exciter are combined on the inner side of the non-driving end cover of the main generator, that is, a connecting rib is provided on the inner side of the non-driving end cover, and the exciter stator is connected to the other end of the connecting rib. During the assembly of the main generator, the non-driving end cover is first placed flat on the workbench, the connecting rib is welded on the inner side of the non-driving end cover placed flat upward, and the exciter stator with the winding is installed on the inner side of the cover. Then, the end cover with the exciter stator is converted into an upright state through a lifting device. Finally, the lifting device is moved to The hoisted end cover and exciter stator are assembled vertically onto the machine base stop at the non-drive end of the motor main machine; since the center of gravity of the end cover equipped with the exciter stator moves forward when it is upright, the center of gravity of the entire end cover device and the end cover body are not in the same vertical plane. When the end cover equipped with the exciter stator is flipped from a horizontal state to a vertical state and hoisted into the air, the entire end cover device will tilt forward and stand obliquely, and it is impossible to complete the task of assembling it to the machine base stop at the non-drive end by the translation of the lifting equipment. How to complete the assembly of the non-drive end end cover of the motor with the exciter stator has become a difficult problem that needs to be solved at the motor assembly site. Summary of the invention

[0004] The invention provides a method for hoisting and flipping a non-driving end cover of a motor with an exciter stator, which realizes that the eccentric end cover with a forwardly moved center of gravity is lifted to a vertical state so that it can smoothly enter the end stop of a horizontal motor base.

[0005] The present invention solves the above technical problems through the following technical solutions: A lifting and flipping tool for an eccentric motor end cover, comprising a non-driving end cover of the motor and a scissor fork sling, a cantilever rod is arranged on the inner side surface of the non-driving end cover of the motor, the other end of the cantilever rod is connected to the stator of the exciter, an end cover fixing screw hole is arranged on the outer circle of the non-driving end cover of the motor, a vertical sling is hinged at the lower end of the two crossed slings of the scissor fork sling, the lower end of the vertical sling is fixedly connected to the top surface of a cubic clamping block, and a supporting pin is arranged on the inner vertical surface of the cubic clamping block; arc-shaped clamping plates are clamped at equal intervals on the outer circle of the non-driving end cover of the motor, an arc-shaped clamping groove is arranged at the right end of the inner arc surface of the arc-shaped clamping plate, end cover clamping and fixing screw holes are arranged on the two side walls in the arc-shaped clamping groove, and the arc-shaped clamping plate is clamped through the arc-shaped clamping groove On the outer circle of the non-driving end cover of the motor, an arc-shaped clamping plate fixing bolt is arranged between the end cover clamping fixing screw hole and the end cover fixing screw hole, and a support pin insertion through hole is arranged between the inner arc surface and the outer arc surface of the arc-shaped clamping plate; the non-driving end cover of the motor with the exciter stator is arranged between two cubic clamping blocks, and the two cubic clamping blocks are realized by the support pins movably connected to the arc-shaped clamping plates through the support pins through the through holes to realize the movable clamping of the non-driving end cover of the motor; when the scissors fork sling lifts the non-driving end cover of the motor with the exciter stator through the two arc-shaped clamping plates, and makes the non-driving end cover of the motor stand upright, the center vertical line of the connection line of the two support pins coincides with the vertical line of the center of gravity of the non-driving end cover of the motor with the exciter stator.

[0006] A pin column mounting plate is arranged on the inner vertical surface of the cubic clamping block, and a support pin column is fixedly arranged at the center of the inner vertical surface of the pin column mounting plate; a square hanging plate is arranged on the top end surface of the cubic clamping block, and the square hanging plate is connected to the top end surface of the cubic clamping block through hanging plate connecting bolts, and the lower end of the vertical hanging rod is fixedly connected to the square hanging plate; the support pin column is inserted into a through hole arranged in the middle of the left end of the inner curved surface of the curved clamping plate.

[0007] A lifting rope is connected between the upper ends of the two crossed suspension rods of the scissor fork sling, and the hook of the lifting equipment is hooked with the lifting rope; a box-type frame hinge seat is arranged in the middle of the two crossed suspension rods of the scissor fork sling, and a pin shaft is arranged in the box-type frame hinge seat, and the pin shaft hinges the middle parts of the two crossed suspension rods together to form a scissor fork sling; a traction rope is connected to the end cover fixing screw hole arranged on the outer circle of the end cover of the non-driving end of the motor between the two arc-shaped clamping plates.

[0008] A method for hoisting and flipping a non-driving end cover of a motor with an exciter stator, comprising a horizontally placed motor base, a non-driving end cover of the motor and a scissor fork sling, a cantilever rod is arranged on the inner side surface of the non-driving end cover of the motor, the other end of the cantilever rod is connected with the exciter stator, an end cover fixing screw hole is arranged on the outer circle of the non-driving end cover of the motor, a vertical sling is hinged at the lower end of two cross slings of the scissor fork sling, the lower end of the vertical sling is fixedly connected to the top surface of a cubic clamping block, and a support pin is fixedly arranged on the inner side elevation of the cubic clamping block; the method comprises the following steps: The first step is to process and manufacture two arc-shaped clamping plates arranged on the outer circle of the non-driving end cover of the motor, process an arc-shaped clamping groove on the right end of the inner arc-shaped surface of the arc-shaped clamping plate, process a through hole for the support pin to penetrate between the inner arc-shaped surface and the outer arc-shaped surface of the arc-shaped clamping plate, and process end cover clamping and fixing screw holes on the two side walls in the arc-shaped clamping groove; in the above-mentioned processing, the positions of the arc-shaped clamping groove and the through hole for the support pin to penetrate are determined according to the following conditions, which are: when the non-driving end cover of the motor connected with the stator of the exciter is placed vertically, and the two processed arc-shaped clamping plates are clamped on the outer circle of the non-driving end cover of the motor through the arc-shaped clamping groove at an interval of 180 arcs, the line connecting the through holes for the support pins on the two arc-shaped clamping plates and the vertical line of the center of gravity of the non-driving end cover of the motor with the stator of the exciter placed vertically are in the same vertical plane; The second step is to place the non-driving end cover of the motor with the exciter stator integrated horizontally on the workbench, clamp the two arc-shaped clamping plates processed in the first step on the outer circle of the non-driving end cover of the motor at an interval of 180 arcs, and use fixing bolts to penetrate between the clamping fixing screw holes of the end cover and the fixing screw holes of the end cover to firmly connect the arc-shaped clamping plate and the non-driving end cover of the motor into one; Step 3: Use the lifting equipment to move the scissor fork sling to the top of the horizontal non-driving end cover of the motor with the exciter stator integrated, so that the non-driving end cover of the motor with the exciter stator is set between the two cubic clamping blocks, and the support pins on the cubic clamping blocks are connected to the support pins on the arc clamping plate and inserted into the through holes to complete the connection between the sling and the non-driving end cover of the motor with the exciter stator integrated; Step 4: Lift the non-driving end cover of the motor with the exciter stator into the air by using a scissor fork sling, and then pull the traction rope connected to the end cover fixing screw hole arranged on the outer circle of the non-driving end cover of the motor between the two arc-shaped clamping plates to flip the non-driving end cover of the motor with the exciter stator 90 degrees to a vertical upright state; Step 5: Use the lifting equipment to adjust the height of the non-driving end cover of the motor with the exciter stator in a vertical upright state so that it corresponds to the end cover stop of the non-driving end of the horizontally placed motor base; Step 6. Use the lifting equipment to move the non-drive end cover of the motor with the exciter stator in a vertical upright state horizontally and install it into the end cover stopper of the non-drive end of the motor base.

[0009] Step 7. Connect the motor end cover fixing bolts between the end cover fixing screw holes set on the outer circle of the non-driving end end cover of the motor and the end cover connecting screw holes of the motor base at the non-driving end to achieve preliminary support and positioning of the non-driving end end cover of the motor, swing the vertical hanger outward to disengage the hanger from the two arc-shaped clamping plates, and then remove the fixing bolts connected between the end cover clamping fixing screw holes and the end cover fixing screw holes to disengage the arc-shaped clamping plates from the non-driving end end cover of the motor; finally, install the non-driving end end cover of the motor with the exciter stator in place by tightening the motor end cover fixing bolts.

[0010] The present invention fixes two arc-shaped clamping plates on the outer circle of the non-driving end cover of the motor, and determines the position of the installation hanging point pin on the arc-shaped clamping plate according to the position of the eccentric center of gravity of the non-driving end cover of the motor with the exciter stator in the vertical state, so that the vertical plane where the line connecting the two hanging point pins and the vertical line of the line are located are in the same vertical plane as the eccentric center of gravity, so that the eccentric motor end cover can be stably in a vertical state after being lifted and turned over by the lifting device, creating operational conditions for the subsequent docking installation of the eccentric end cover and the stopper of the non-driving end cover of the horizontally placed machine base. The entire lifting device mechanism is simple and ingenious, the entire installation process is convenient to operate, and the defect that the exciter stator on the end cover is easily damaged during the turning installation process is overcome. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the lifting device of the present invention lifting the non-driving end cover 1 of the motor with the exciter stator 3 and turning it over to a vertical state; Figure 2 It is a connection relationship diagram between the sling of the present invention and the non-driving end cover 1 of the motor with the exciter stator 3 lying flat on the workbench; Figure 3 It is a schematic diagram of the connection structure between the sling of the present invention and the two arc-shaped clamping plates 5; Figure 4 It is a structural schematic diagram of a non-driving end cover 1 of a motor with an exciter stator 3 of the present invention; Figure 5 It is a schematic structural diagram of the scissor fork hanger 13 of the present invention; Figure 6 It is a schematic structural diagram of the arc-shaped clamping plate 5 of the present invention; Figure 7 It is a schematic structural diagram of a cubic clamping block 11 of the present invention; Figure 8 This is a diagram showing the connection between the arc-shaped clamping plate 5 and the cubic clamping block 11 of the present invention. DETAILED DESCRIPTION

[0012] The present invention is described in detail below in conjunction with the accompanying drawings: A lifting and flipping tool for an eccentric motor end cover comprises a motor non-driving end cover 1 and a scissor fork sling 13, a cantilever rod 2 is arranged on the inner side surface of the motor non-driving end cover 1, and an exciter stator 3 is connected to the other end of the cantilever rod 2, the motor non-driving end cover 1, four cantilever rods 2 and the exciter stator 3 form an integral end cover mechanism, if the integral end cover mechanism is placed vertically along the vertical direction, the vertical line of the center of gravity of the integral end cover mechanism will be located between the motor non-driving end cover 1 and the exciter stator 3, therefore, the present invention refers to the integral end cover mechanism as an eccentric end cover, an end cover fixing screw hole 4 is arranged on the outer circle of the motor non-driving end cover 1, and the end cover fixing screw hole 4 is used to assemble the motor non-driving end cover 1 to the stopper of the motor base, so as to assemble the end cover with the motor base. The machine base is fixed together by bolts; a vertical suspension rod 12 is hinged at the lower end of the two cross suspension rods of the scissor fork hanger 13, and the vertical suspension rod 12 can swing around the lower end of the cross suspension rod. The lower end of the vertical suspension rod 12 is fixedly connected to the top surface of the cubic clamping block 11, and a support pin 9 is provided on the inner vertical surface of the cubic clamping block 11. The scissor fork hanger 13 is connected to the overall end cover mechanism by two support pins 9, that is, the two support pins 9 are the lifting support points of the overall end cover mechanism, and also the flip support axis of the overall end cover mechanism; arc-shaped splints 5 are clamped at equal intervals on the outer circle of the non-driving end end cover 1 of the motor, and an arc-shaped clamping groove 6 is provided at the right end of the inner arc surface of the arc-shaped splint 5. End cover clamping and fixing screw holes 7 are arranged on the two side walls inside, the arc-shaped clamping plate 5 is clamped on the outer circle of the non-driving end end cover 1 of the motor through the arc-shaped clamping groove 6, an arc-shaped clamping plate fixing bolt is arranged between the end cover clamping and fixing screw hole 7 and the end cover fixing screw hole 4, and a support pin insertion through hole 8 is arranged between the inner arc surface and the outer arc surface of the arc-shaped clamping plate 5; the non-driving end end cover 1 of the motor with the exciter stator 3 is arranged between two cubic clamping blocks 11, and the two cubic clamping blocks 11 are movably connected to the support pins on the arc-shaped clamping plate 5 through the through holes 8 to realize the active clamping of the non-driving end end cover 1 of the motor; when the scissors fork hanger 13 lifts the non-driving end end cover 1 of the motor with the exciter stator 3 through the two arc-shaped clamping plates 5, and makes the motor When the non-drive end cover 1 of the machine is in a vertical upright state, the center vertical line of the line connecting the two support pins 9 coincides with the vertical line of the center of gravity of the non-drive end cover 1 of the motor with the exciter stator 3; the present invention creatively designs the arc-shaped clamping plate 5, determines on the arc-shaped clamping plate 5 the intersection of the vertical plane where the vertical line of the center of gravity of the overall end cover mechanism is located after vertical lifting and the arc-shaped clamping plate 5, and arranges a support pin insertion hole 8 at the intersection, so that the two support pins 9 are connected in the support pin insertion hole 8, thereby realizing that the upward lifting relay force of the hoist on the overall end cover mechanism and the gravity of the overall end cover mechanism when it is in a vertical state are in the same vertical plane, avoiding the occurrence of the tilting phenomenon of the overall end cover mechanism after lifting, and laying a foundation for the lifting and installation of the end cover to the end cover stop of the horizontal motor base.

[0013] A pin mounting plate 10 is arranged on the inner vertical surface of the cubic clamping block 11, and the support pin 9 is fixedly arranged at the center of the inner vertical surface of the pin mounting plate 10, and the pin mounting plate 10 and the support pin 9 are a whole; a square hanging plate 16 is arranged on the top end surface of the cubic clamping block 11, and the square hanging plate 16 is connected to the top end surface of the cubic clamping block 11 through the hanging plate connecting bolts 17, and the lower end of the vertical hanging rod 12 is fixedly connected to the square hanging plate 16, so that parts can be replaced; the support pin insertion hole 8 is arranged in the middle of the left end of the inner curved surface of the arc clamping plate 5.

[0014] A lifting rope 14 is connected between the upper ends of the two crossed suspension rods of the scissor fork sling 13, and the hook 15 of the lifting equipment is hooked with the lifting rope 14; a box-type frame hinge seat 18 is arranged in the middle of the two crossed suspension rods of the scissor fork sling 13, and a pin shaft 19 is arranged in the box-type frame hinge seat 18, and the pin shaft 19 hinges the middle parts of the two crossed suspension rods together to form the scissor fork sling 13; a traction rope 20 is connected to the end cover fixing screw hole 4 arranged on the outer circle of the end cover 1 of the non-driving end of the motor between the two arc-shaped clamping plates 5; the traction rope 20 can also be used in the initial stage of lifting, and the traction rope 20 is manually pulled to prevent the coil in the stator 3 of the exciter from being bumped during lifting.

[0015] A method for hoisting and flipping a non-driving end cover of a motor with an exciter stator, comprising a horizontally placed motor base, a non-driving end cover 1 of the motor and a scissor fork sling 13, a cantilever rod 2 is arranged on the inner side of the non-driving end cover 1 of the motor, an exciter stator 3 is connected to the other end of the cantilever rod 2, an end cover fixing screw hole 4 is arranged on the outer circle of the non-driving end cover 1 of the motor, a vertical sling 12 is hinged at the lower end of the two cross slings of the scissor fork sling 13, the lower end of the vertical sling 12 is fixedly connected to the top surface of a cubic clamping block 11, and a support pin 9 is fixedly arranged on the inner side elevation of the cubic clamping block 11; the method comprises the following steps: The first step is to process and manufacture two arc-shaped clamping plates 5 arranged on the outer circle of the non-driving end end cover 1 of the motor, and process an arc-shaped clamping groove 6 on the right end of the inner arc-shaped surface of the arc-shaped clamping plate 5, and between the inner arc-shaped surface and the outer arc-shaped surface of the arc-shaped clamping plate 5, a support pin insertion through hole 8 is processed, and the end cover clamping and fixing screw holes 7 are processed on the two side walls in the arc-shaped clamping groove 6; in the above-mentioned processing, the positions of the arc-shaped clamping groove 6 and the support pin insertion through hole 8 are determined according to the following conditions, which are: when the non-driving end end cover 1 of the motor connected with the exciter stator 3 is placed vertically, and the two processed arc-shaped clamping plates 5 are clamped on the outer circle of the non-driving end end cover 1 of the motor through the arc-shaped clamping groove 6 at an interval of 180 arcs, the line between the support pins on the two arc-shaped clamping plates 5 and the vertical line of the center of gravity of the vertically placed non-driving end end cover 1 of the motor with the exciter stator 3 are in the same vertical plane; The second step is to place the non-driving end cover 1 of the motor with the exciter stator 3 integrated therein horizontally on the workbench, and clamp the two arc-shaped clamping plates 5 processed in the first step on the outer circle of the non-driving end cover 1 of the motor at an interval of 180 arcs, and use fixing bolts to penetrate between the end cover clamping fixing screw hole 7 and the end cover fixing screw hole 4, so as to firmly connect the arc-shaped clamping plate 5 and the non-driving end cover 1 of the motor into one; Step 3: Move the scissor fork sling 13 to the top of the horizontal non-drive end cover 1 of the motor integrated with the exciter stator 3 by means of the hoisting equipment, so that the non-drive end cover 1 of the motor with the exciter stator 3 is arranged between the two cubic clamping blocks 11, and the support pins 9 on the cubic clamping blocks 11 are connected to the support pins on the arc clamping plate 5 and inserted into the through holes 8, so as to complete the connection between the sling and the non-drive end cover 1 of the motor integrated with the exciter stator 3; Step 4: Lift the non-driving end cover 1 of the motor with the exciter stator 3 into the air by means of the scissor fork sling 13, and then pull the traction rope 20 connected to the end cover fixing screw hole 4 provided on the outer circle of the non-driving end cover 1 of the motor between the two arc-shaped clamping plates 5, so that the non-driving end cover 1 of the motor with the exciter stator 3 is turned over 90 degrees to be in a vertical upright state; Step 5: Use the lifting equipment to adjust the height of the non-driving end cover 1 of the motor with the exciter stator 3 in a vertically erected state so that it is set correspondingly to the end cover stop of the non-driving end of the horizontally placed motor base; Step 6: Use a lifting device to move the non-drive end cover 1 of the motor with the exciter stator 3 in a vertically upright state in the horizontal direction and install it into the end cover stop of the non-drive end of the motor base.

[0016] The seventh step is to pass the motor end cover fixing bolts through the end cover fixing screw holes 4 set on the outer circle of the motor non-driving end end cover 1 and the end cover connecting screw holes of the motor base at the non-driving end to achieve preliminary support and positioning of the motor non-driving end end cover 1, swing the vertical suspension rod 12 outward to disengage the hanger from the two arc-shaped clamping plates 5, and then remove the fixing bolts passing through the end cover clamping fixing screw holes 7 and the end cover fixing screw holes 4 to disengage the arc-shaped clamping plates 5 from the motor non-driving end end cover 1; finally, the motor non-driving end end cover 1 with the exciter stator 3 is installed in place by tightening the motor end cover fixing bolts.

[0017] A lifting rope 14 is connected between the upper ends of the two crossed suspension rods of the scissor fork-shaped boom 13, and a hook 15 of the lifting equipment is hooked together with the lifting rope 14; a box-type frame hinge seat 18 is arranged in the middle of the two crossed suspension rods of the scissor fork sling 13, and a pin shaft 19 is arranged in the box-type frame hinge seat 18. After the pin shaft 19 hinges the middle parts of the two crossed suspension rods together, the scissor fork sling 13 is formed.

Claims

1. A method for hoisting and flipping a non-driving end cover of a motor with an exciter stator, comprising a horizontally placed motor base, a non-driving end cover (1) of the motor and a scissor fork sling (13), a cantilever rod (2) being arranged on the inner side surface of the non-driving end cover (1) of the motor, the exciter stator (3) being connected to the other end of the cantilever rod (2), an end cover fixing screw hole (4) being arranged on the outer circle of the non-driving end cover (1) of the motor, a vertical sling (12) being hinged at the lower end of the two cross slings of the scissor fork sling (13), the lower end of the vertical sling (12) being fixedly connected to the top end surface of a cubic clamping block (11), and a support pin (9) being fixedly arranged on the inner side vertical surface of the cubic clamping block (11); characterized in that Follow these steps: The first step is to process and manufacture two arc-shaped clamping plates (5) arranged on the outer circle of the end cover (1) of the non-driving end of the motor, and to process an arc-shaped clamping groove (6) at the right end of the inner arc-shaped surface of the arc-shaped clamping plate (5), and to process a support pin through-hole (8) between the inner arc-shaped surface and the outer arc-shaped surface of the arc-shaped clamping plate (5), and to process end cover clamping fixing screw holes (7) on the two side walls in the arc-shaped clamping groove (6); in the above-mentioned processing, the positions of the arc-shaped clamping groove (6) and the support pin through-hole (8) are both The method is determined according to the following conditions: when the non-driving end cover (1) of the motor connected with the exciter stator (3) is placed vertically, and the two processed arc-shaped clamping plates (5) are clamped on the outer circle of the non-driving end cover (1) of the motor through the arc-shaped clamping groove (6) at an interval of 180 arcs, the line between the support pins on the two arc-shaped clamping plates (5) passing through the through holes (8) and the vertical line of the center of gravity of the non-driving end cover (1) of the motor with the exciter stator (3) placed vertically are in the same vertical plane; Step 2: Place the non-driving end cover (1) of the motor with the exciter stator (3) integrated therein horizontally on a workbench, clamp the two arc-shaped clamping plates (5) processed in the first step on the outer circle of the non-driving end cover (1) of the motor at an interval of 180 degrees, and insert the fixing bolts between the clamping fixing screw holes (7) of the end cover and the fixing screw holes (4) of the end cover to firmly connect the arc-shaped clamping plates (5) and the non-driving end cover (1) of the motor into one piece; Step 3: Move the scissor fork sling (13) to the top of the horizontal non-driving end cover (1) of the motor with the exciter stator (3) by means of a lifting device, so that the non-driving end cover (1) of the motor with the exciter stator (3) is arranged between the two cubic clamping blocks (11), and the support pins (9) on the cubic clamping blocks (11) are connected to the support pins on the arc clamping plate (5) and inserted into the through holes (8), thereby completing the connection between the sling and the non-driving end cover (1) of the motor with the exciter stator (3); Step 4: hoist the non-driving end cover (1) of the motor with the exciter stator (3) into the air by means of a scissor fork hoist (13), and then pull the traction rope (20) connected to the end cover fixing screw hole (4) provided on the outer circle of the non-driving end cover (1) of the motor between the two arc-shaped clamping plates (5) to make the non-driving end cover (1) of the motor with the exciter stator (3) flip 90 degrees to a vertical upright state; Step 5: Using a lifting device, adjust the height of the non-driving end cover (1) of the motor with the exciter stator (3) in a vertically erected state so that it is arranged correspondingly to the end cover stop of the non-driving end of the horizontally placed motor base; Step 6: Use a lifting device to move the non-drive end cover (1) of the motor with the exciter stator (3) in a vertically upright state in a horizontal direction and install it into the end cover stopper of the non-drive end of the motor base.

2. The method for hoisting and turning over the non-driving end cover of a motor with an exciter stator according to claim 1, characterized in that: Step 7: Connect the motor end cover fixing bolts between the end cover fixing screw holes (4) provided on the outer circle of the motor non-driving end end cover (1) and the end cover connecting screw holes of the motor base at the non-driving end, so as to achieve preliminary support and positioning of the motor non-driving end end cover (1), swing the vertical suspension rod (12) outward to separate the suspension device from the two arc-shaped clamping plates (5), and then remove the fixing bolts connected between the end cover clamping fixing screw holes (7) and the end cover fixing screw holes (4), so as to separate the arc-shaped clamping plates (5) from the motor non-driving end end cover (1); finally, install the motor non-driving end end cover (1) with the exciter stator (3) in place by tightening the motor end cover fixing bolts.

3. The method for hoisting and turning over the non-driving end cover of a motor with an exciter stator according to claim 2, characterized in that: A lifting rope (14) is connected between the upper ends of the two crossed suspension rods of the scissor fork-shaped suspension arm (13), and a lifting hook (15) of the lifting equipment is hooked with the lifting rope (14); a box-shaped frame hinge seat (18) is arranged in the middle of the two crossed suspension rods of the scissor fork suspension device (13), and a pin shaft (19) is arranged in the box-shaped frame hinge seat (18). After the pin shaft (19) hinges the middle of the two crossed suspension rods together, the scissor fork suspension device (13) is formed.

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