A generator stator machining apparatus

By using a clamping base and top frame to hold the generator stator, and utilizing the stator's gravity and high-frequency reciprocating grinding method, the problem of uneven force control by manual methods is solved, achieving a more efficient stator grinding effect.

CN117067055BActive Publication Date: 2026-03-20HEFEI CALSIION ELECTRIC POWER SYST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-31
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

In existing generator stator grinding equipment, the force exerted by the grinding wheel on the iron core is controlled manually, which leads to uneven force and affects the grinding effect.

Method used

The generator stator is clamped by a combination of a clamping base frame and a clamping top frame. The force is applied by the weight of the stator, and combined with a grinding device and a high-frequency reciprocating grinding method, the force is ensured to be within an appropriate range.

Benefits of technology

It improves the polishing effect and efficiency, and ensures the uniformity and precision of the polishing force.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117067055B_ABST
Patent Text Reader

Abstract

The application discloses a generator stator machining equipment and relates to the technical field of generators, which comprises an equipment main frame, a vertical motor installed at the inner middle position of the equipment main frame, a driving bottom plate installed at the top surface middle position of the equipment main frame, a bottom surface center position of the driving bottom plate connected with the output shaft of the motor through a shaft coupling, a driving middle shaft fixedly connected at the top surface center position of the driving bottom plate, and a clamping bottom frame movably arranged at the side middle position of the driving middle shaft.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of generators, in particular to a generator stator machining equipment. BACKGROUND

[0002] The generator stator is the stationary part of the motor, and its components mainly include the core, the base, the coil and other components. The generator stator is one of the key components of the generator. For high-voltage and large-capacity synchronous motors, the rotating magnetic pole structure is adopted. Since the capacity and voltage of the excitation part are much smaller than those of the armature, the armature is installed on the stator, and the main magnetic pole is installed on the rotor. The main function of the generator stator is to cut the magnetic field in the rotating magnetic field formed by the rotor to generate voltage. The core of the generator stator needs to ensure the curvature. In the production process, a generator stator machining equipment, specifically a polishing equipment, is needed.

[0003] The existing polishing equipment for generator stator machining disclosed in publication No. CN217225034U polishes the core by the polishing wheel and the rotating base. The force of the polishing wheel on the core is controlled manually, which may cause uneven force control and affect the polishing effect. SUMMARY

[0004] In order to overcome the above technical problems, the purpose of the present application is to provide a generator stator machining equipment to solve the problem that in the prior art, when polishing the core, the core is polished by the polishing wheel and the rotating base. The force of the polishing wheel on the core is controlled manually, which may cause uneven force control and affect the polishing effect.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] A generator stator machining equipment, comprising a device main frame, a vertical motor installed at the inner middle position of the device main frame, a driving bottom plate installed at the top surface middle position of the device main frame, a driving bottom plate bottom surface center position connected with the output shaft of the motor through a shaft coupling, a driving middle shaft fixedly connected at the top surface center position of the driving bottom plate, a clamping bottom frame movably arranged at the middle position of the side surface of the driving middle shaft, a clamping top frame movably installed at the top surface of the driving middle shaft, the clamping bottom frame and the clamping top frame cooperating to clamp the generator stator, a stabilizing block arranged at the position close to the clamping bottom frame and the clamping top frame on the side surface of the driving middle shaft, the stabilizing block supported on the inner wall of the generator stator by centrifugal force, and a polishing device installed at both ends of the top surface of the device main frame, the polishing device applying force to the side surface of the generator stator by using the gravity of the generator stator and polishing the side surface of the generator stator at the same time.

[0007] As a further scheme of the present application: the driving bottom plate comprises a circular bottom plate body, a circular wave groove is formed in the bottom surface of the bottom plate body, and a stopper that is matched with the wave groove is fixedly connected to the top surface of the equipment main frame near the wave groove.

[0008] As a further scheme of the present application: the top surface of the stopper is provided with a roller that is installed through a rotating shaft, and the direction of the roller is tangent to the rotating direction of the bottom plate body.

[0009] As a further scheme of the present application: the clamping bottom frame comprises a lifting clamping block, a lifting sliding groove that is matched with the lifting clamping block is formed in the side surface of the driving middle shaft near the lifting clamping block, and inclined surfaces are arranged on the two sides of the lifting clamping block.

[0010] As a further scheme of the present application: the bottom surface of the lifting clamping block is fixedly connected with a piston through a long rod, an oil cylinder shell that is matched with the piston is arranged on the outer side of the piston, and a connecting port is arranged at the bottom end of the oil cylinder shell.

[0011] As a further scheme of the present application: the clamping top frame comprises a lifting disc, a telescopic rod is fixedly connected to the bottom surface of the lifting disc, the telescopic rod is movably connected to the top surface of the driving middle shaft through a bolt, a central gear is arranged at the top surface of the lifting disc, four moving racks are engaged with the side surface of the central gear, centrifugal clamping blocks are fixedly connected to the outer side of the one end of the moving racks, the four centrifugal clamping blocks are equidistantly arranged, and the outer side of the centrifugal clamping block is an inverted inclined surface.

[0012] When the generator stator is placed on the lifting clamping block, the lifting clamping block is displaced downward under the action of the gravity of the generator stator, the downward moving lifting clamping block drives the piston through the long rod, the piston moves downward in the oil cylinder shell, and the hydraulic oil in the oil cylinder shell is squeezed, and the centrifugal clamping block can be clamped on the top surface of the generator stator.

[0013] As a further scheme of the present application: the polishing device comprises a lifting table, the lifting table is connected with the equipment main frame through a hydraulic push rod, a hydraulic cylinder is fixedly connected to one side of the top surface of the lifting table, a driving motor is connected to the output end of the hydraulic cylinder, a pushing frame is connected to the output shaft of the driving motor, a polishing wheel is connected to one side of the pushing frame through a spring, an oil pipeline is fixedly connected to one end of the hydraulic cylinder, and the other end of the oil pipeline is in communication with the connecting port.

[0014] The present application has the following beneficial effects:

[0015] When the polishing device is used to polish the side surface of the generator stator clamped by the clamping bottom frame and the clamping top frame, the polishing device can control the horizontal direction force on the side surface of the generator stator, ensure that the force of the polishing device on the side surface of the generator stator is in the appropriate range, and improve the polishing effect.

[0016] When the motor drives the driving bottom plate and the driving middle shaft in the equipment main frame, the bottom surface of the bottom plate body is provided with a circular wave groove, the top surface of the equipment main frame is fixedly connected with a stopper matched with the wave groove near the wave groove, and the top surface of the stopper is provided with a roller through a rotating shaft, so that the stopper acts on the bottom surface of the bottom plate body through the wave groove, the bottom plate body generates vertical reciprocating displacement in the rotating process, and is high-frequency reciprocating displacement, when the polishing device acts on the side surface of the generator stator, the high-frequency reciprocating displacement can generate vertical shearing force between the side surface of the generator stator and the polishing device, so that the polishing efficiency of the polishing device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The application will be further described below in combination with the drawings.

[0018] Figure 1 is the front view of the application;

[0019] Figure 2 is the front view of the driving bottom plate in the application;

[0020] Figure 3 is the front view of the clamping bottom frame in the application;

[0021] Figure 4 is the front view of the clamping top frame in the application;

[0022] Figure 5 is the front view of the polishing device in the application.

[0023] In the drawings: 1, equipment main frame; 2, driving bottom plate; 21, bottom plate body; 22, wave groove; 23, stopper; 3, driving middle shaft; 4, clamping bottom frame; 41, lifting clamping block; 42, oil cylinder shell; 43, connecting port; 5, clamping top frame; 51, lifting disc; 52, central gear; 53, moving rack; 54, centrifugal clamping block; 6, stabilizing block; 61, centrifugal rod; 7, polishing device; 71, lifting platform; 72, hydraulic cylinder; 73, driving motor; 74, pushing frame; 75, polishing wheel; 76, oil conveying pipeline. DETAILED DESCRIPTION

[0024] With reference to the drawings and embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0025] As shown in Figures 1-5 A generator stator processing equipment, including equipment main frame 1, the inside middle position of equipment main frame 1 is installed vertically motor, the top surface middle position of equipment main frame 1 is installed drive base plate 2, the bottom surface center position of drive base plate 2 is connected with the output shaft of motor through coupling, the top surface center position of drive base plate 2 is fixedly connected with drive middle shaft 3, the side middle position of drive middle shaft 3 is movably provided with clamping base frame 4, the top surface of drive middle shaft 3 is movably installed with clamping top frame 5, clamping base frame 4 and clamping top frame 5 cooperate to clamp generator stator, the position close to clamping base frame 4 and clamping top frame 5 on the side of drive middle shaft 3 is provided with stabilizing block 6, one end of the inner side of stabilizing block 6 is fixedly connected with centrifugal rod 61, stabilizing block 6 is supported on the inner wall of generator stator by centrifugal force, polishing device 7 is installed at both ends of the top surface of equipment main frame 1, polishing device 7 uses the gravity of generator stator to exert force on the side of generator stator while polishing the side of generator stator;

[0026] When the generator stator is nested on the side of drive middle shaft 3, the gravity of generator stator acts on clamping base frame 4, then adjust clamping top frame 5, so that clamping top frame 5 can cooperate with clamping base frame 4 to clamp generator stator;

[0027] When polishing operation is needed for generator stator, polishing device 7 can be used for polishing operation on the side of generator stator clamped by clamping base frame 4 and clamping top frame 5, since polishing device 7 uses the gravity of generator stator to exert force on the side of generator stator while polishing the side of generator stator, polishing device 7 can control the horizontal direction force on the side of generator stator, ensure that the force of polishing device 7 on the side of generator stator is in the appropriate range, and improve the polishing effect.

[0028] As shown in Figure 2 Drive base plate 2 includes circular base plate body 21, circular annular wave groove 22 is formed in the bottom surface of base plate body 21, stop block 23 that mutually fits with wave groove 22 is fixedly connected with the position close to wave groove 22 on the top surface of equipment main frame 1, roller is installed on the top surface of stop block 23 through pivot, the direction of roller is tangent to the direction of rotation of base plate body 21;

[0029] When the motor inside the equipment main frame 1 drives the driving base plate 2 and the driving middle shaft 3, due to the bottom surface of the base plate body 21 being provided with a circular wave groove 22, the top surface of the equipment main frame 1 is fixedly connected with a stop block 23 matched with the wave groove 22 at the position close to the wave groove 22, and the top surface of the stop block 23 is provided with a roller through a rotating shaft, so that the stop block 23 acts on the bottom surface of the base plate body 21 through the wave groove 22, so that the base plate body 21 generates vertical reciprocating displacement in the rotating process, and is high-frequency reciprocating displacement, when the polishing device 7 acts on the side surface of the generator stator, the high-frequency reciprocating displacement can generate vertical shearing force between the side surface of the generator stator and the polishing device 7, thereby improving the polishing efficiency of the polishing device 7.

[0030] As shown in Figure 3 , the clamping bottom frame 4 comprises a lifting clamping block 41, the side surface of the driving middle shaft 3 is provided with a lifting sliding groove matched with the lifting clamping block 41 at the position close to the lifting clamping block 41, the two sides of the lifting clamping block 41 are provided with inclined surfaces, and the bottom surface of the lifting clamping block 41 is fixedly connected with a piston at the center position through a long rod, the outer side of the piston is provided with a cylinder shell 42 matched with the piston, and the bottom end of the cylinder shell 42 is provided with a connecting port 43.

[0031] As shown in Figure 4 , the clamping top frame 5 comprises a lifting disc 51, the bottom surface of the lifting disc 51 is fixedly connected with a telescopic rod at the center position, the telescopic rod is movably connected with the top surface of the driving middle shaft 3 through a bolt limiting, the top surface of the lifting disc 51 is installed with a central gear 52 at the center position, the side surface of the central gear 52 is engaged with four moving racks 53, the outer side of the moving rack 53 is fixedly connected with a centrifugal clamping block 54 at one end, the four centrifugal clamping blocks 54 are equidistantly arranged, and the outer side of the centrifugal clamping block 54 is an inverted inclined surface.

[0032] When the generator stator is placed on the lifting clamping block 41, the lifting clamping block 41 is displaced downward under the action of the gravity of the generator stator, the lifting clamping block 41 moving downward drives the piston through the long rod, so that the piston moves downward in the cylinder shell 42 and squeezes the hydraulic oil in the cylinder shell 42, and the centrifugal clamping block 54 can be clamped on the top surface of the generator stator, when the generator stator is clamped, under the action of the centrifugal force when the generator stator rotates at high speed, the centrifugal clamping block 54 exerts a downward force on the generator stator, so that the generator stator is kept stable.

[0033] As shown in Figure 5As shown, the polishing device 7 comprises a lifting platform 71 connected with the equipment main frame 1 through a hydraulic push rod, one side of the top surface of the lifting platform 71 is fixedly connected with a hydraulic cylinder 72, the output end of the hydraulic cylinder 72 is connected with a driving motor 73, the output shaft of the driving motor 73 is connected with a push frame 74, one side of the push frame 74 is connected with a polishing wheel 75 through a spring, one end of the hydraulic cylinder 72 is fixedly connected with an oil conveying pipeline 76, the other end of the oil conveying pipeline 76 is in communication with the connecting port 43;

[0034] When working, as the piston moves downward in the oil cylinder shell 42, extruding the hydraulic oil in the oil cylinder shell 42, the other end of the oil conveying pipeline 76 is in communication with the connecting port 43, so the connecting port 43 can convey the hydraulic oil in the oil cylinder shell 42 to the hydraulic cylinder 72 through the oil conveying pipeline 76, so that the hydraulic cylinder 72 can push the driving motor 73, and the driving motor 73 moves to the side of the generator stator, when the driving motor 73 moves to the side of the generator stator, the driving motor 73 can act on the side of the motor stator through the push frame 74, that is, an acting force is applied to the side of the motor stator.

[0035] The working principle of the present application is that when the generator stator is nested on the side of the driving middle shaft 3, the gravity of the generator stator acts on the clamping bottom frame 4, and then the clamping top frame 5 is adjusted so that the clamping top frame 5 can cooperate with the clamping bottom frame 4 to clamp the generator stator;

[0036] When the polishing operation of the generator stator is needed, the polishing device 7 can be used to polish the side of the generator stator clamped by the clamping bottom frame 4 and the clamping top frame 5, because the polishing device 7 applies an acting force to the side of the generator stator while polishing the side of the generator stator by using the gravity of the generator stator, specifically, when the generator stator is placed on the lifting clamping block 41, the lifting clamping block 41 is displaced downward under the action of the gravity of the generator stator, and the downwardly displaced lifting clamping block 41 drives the piston through the long rod, so that the piston moves downward in the oil cylinder shell 42, extruding the hydraulic oil in the oil cylinder shell 42, and as the piston moves downward in the oil cylinder shell 42, extruding the hydraulic oil in the oil cylinder shell 42, the other end of the oil conveying pipeline 76 is in communication with the connecting port 43, so the connecting port 43 can convey the hydraulic oil in the oil cylinder shell 42 to the hydraulic cylinder 72 through the oil conveying pipeline 76, so that the hydraulic cylinder 72 can push the driving motor 73, and the driving motor 73 moves to the side of the generator stator, when the driving motor 73 moves to the side of the generator stator, the driving motor 73 can act on the side of the motor stator through the push frame 74, that is, an acting force is applied to the side of the motor stator.

[0037] When the motor inside the equipment main frame 1 drives the driving bottom plate 2 and the driving middle shaft 3, due to the bottom surface of the bottom plate body 21 being provided with a circular wave groove 22, the top surface of the equipment main frame 1 is fixedly connected with a stop block 23 matched with the wave groove 22 at the position close to the wave groove 22, and the top surface of the stop block 23 is provided with a roller through a rotating shaft, so that the stop block 23 acts on the bottom surface of the bottom plate body 21 through the wave groove 22, the bottom plate body 21 generates vertical reciprocating displacement in the rotating process, and is high-frequency reciprocating displacement, when the polishing device 7 acts on the side surface of the generator stator, the high-frequency reciprocating displacement can generate vertical shearing force between the side surface of the generator stator and the polishing device 7, thereby improving the polishing efficiency of the polishing device 7.

[0038] The above has carried on the detailed description to one embodiment of the application, but the content described is only the preferred embodiment of the application, and cannot be considered as used for limiting the implementation scope of the application. Any equivalent change and improvement made according to the application scope should still belong to the patent coverage scope of the application.

Claims

1. A generator stator processing equipment, characterized in that, include: The main frame of the equipment (1) has a vertical motor installed in the middle of its interior; Drive base plate (2), the drive base plate (2) is installed in the middle of the top surface of the main frame (1) of the equipment, and the center of the bottom surface of the drive base plate (2) is connected to the output shaft of the motor through a coupling; Drive shaft (3), which is fixed at the center of the top surface of drive base plate (2); Clamping base frame (4) is movably disposed at the middle of the side of the drive shaft (3); The clamping top frame (5) is movably mounted on the top surface of the drive shaft (3), and the clamping base frame (4) cooperates with the clamping top frame (5) to clamp the generator stator; Stabilizing block (6) is located on the side of the drive shaft (3) near the position between the clamping base frame (4) and the clamping top frame (5). The stabilizing block (6) is supported on the inner wall of the generator stator by centrifugal force. Grinding device (7), the grinding device (7) is installed at both ends of the top surface of the main frame (1) of the equipment. The grinding device (7) applies force to the side of the generator stator by the gravity of the generator stator and grinds the side of the generator stator at the same time. The drive base plate (2) includes a circular base plate body (21), and the bottom surface of the base plate body (21) is provided with an annular wave groove (22). The top surface of the main frame of the equipment (1) is fixedly connected with a stop block (23) that fits into the wave groove (22). The top surface of the stop (23) is equipped with a roller via a rotating shaft, and the direction of the roller is tangent to the direction of rotation of the base plate body (21); The clamping base (4) includes a lifting clamping block (41). The side of the drive shaft (3) near the lifting clamping block (41) is provided with a lifting groove that fits with the lifting clamping block (41). The lifting clamping block (41) has inclined surfaces on both sides. The bottom center of the lifting clamping block (41) is fixedly connected to a piston by a long rod. The outer side of the piston is provided with a cylinder shell (42) that fits into the piston. The bottom end of the cylinder shell (42) is provided with a connection port (43).

2. The generator stator processing equipment according to claim 1, characterized in that, The clamping top frame (5) includes a lifting plate (51). A telescopic rod is fixedly connected to the center of the bottom surface of the lifting plate (51). The telescopic rod is movably connected to the central shaft of the top surface of the drive shaft (3) and is limited by bolts. A central gear (52) is installed at the center of the top surface of the lifting plate (51). Four moving racks (53) are meshed on the side of the central gear (52). A centrifugal clamping block (54) is fixedly connected to one end of the outer side of the moving racks (53).

3. The generator stator processing equipment according to claim 2, characterized in that, The four centrifugal clamping blocks (54) are arranged at equal intervals, and the outer side of the centrifugal clamping blocks (54) is an inverted inclined surface.

4. The generator stator processing equipment according to claim 1, characterized in that, The grinding device (7) includes a lifting platform (71), which is connected to the main frame (1) of the equipment by a hydraulic push rod. A hydraulic cylinder (72) is fixedly connected to one side of the top surface of the lifting platform (71). A drive motor (73) is connected to the output end of the hydraulic cylinder (72). A push frame (74) is connected to the output shaft of the drive motor (73). A grinding wheel (75) is connected to one side of the push frame (74) by a spring. An oil pipeline (76) is fixedly connected to one end of the hydraulic cylinder (72). The other end of the oil pipeline (76) is connected to the connection port (43).

Citation Information

Patent Citations

  • Polishing equipment for generator stator machining

    CN217225034U

  • Polishing device for cylindrical part of new energy automobile

    CN113798933A

  • Fixing device for motor production

    CN209767357U

  • Optical glass side edge polishing device

    CN214264987U