Disassembly and assembly process of permanent magnet servo motor for ceramic hydraulic press

Abstract

The present invention discloses a permanent magnet servo motor disassembly and assembly process method for a ceramic hydraulic press, which relates to the field of motor technology. Worker No. 1 removes the flange screws and the two anchor screws at the non-junction box end of the motor to separate the motor and the oil pump; Worker No. 2 removes the two anchor screws at the junction box end, removes the motor junction box and power cord, Worker No. 1 lifts out the old motor, uses a forklift to lift the new motor, and aligns the new motor; Worker No. 2 connects the main motor power cord, installs the two anchor screws at the junction box end, connects the fan power cord, lays the wires before shutting down, presses the terminal nose, and shuts down the machine. The present invention greatly shortens the time to resume production, improves the efficiency of motor disassembly and assembly, reduces costs and increases efficiency, improves the economic benefits of the enterprise, and has broad application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a method for disassembling and assembling a permanent magnet servo motor used in a ceramic hydraulic press. Background Art

[0002] With the advancement of technology, press equipment needs to be frequently modified. However, when modifying the permanent magnet servo motor used in ceramic hydraulic presses, the equipment must be shut down. This shutdown process takes more than 10 hours to resume production, which is time-consuming and inefficient. It also requires a lot of manpower and material resources, affecting economic benefits. Based on this, it is particularly necessary to develop a method for disassembling and assembling the permanent magnet servo motor used in ceramic hydraulic presses. Summary of the Invention

[0003] In view of the deficiencies in the existing technology, the purpose of the present invention is to provide a permanent magnet servo motor disassembly and assembly process method for a ceramic hydraulic press, which greatly shortens the production resumption time, improves the disassembly and assembly efficiency of the motor, reduces costs and increases efficiency, improves economic benefits, and is easy to promote and use.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solution: a method for disassembling and assembling a permanent magnet servo motor for a ceramic hydraulic press, the steps of which are as follows:

[0005] (1) Preparation: Worker No. 1 and Worker No. 2 prepare the disassembly and assembly tools, and at the same time, make a support pad under the oil pump, remove the oil pump observation cover, check the direction of the oil pump, and check the high and low pressure range; put the forklift in place, install the lifting motor wire rope, install the forklift extension fork arm; make the motor extension cable, and install the spare coupling;

[0006] (2) Worker No. 1 uses an electric wrench and a socket to remove the flange screws, uses a wrench to remove the two anchor screws at the non-junction box end of the motor, and uses a crowbar to separate the motor and the oil pump; Worker No. 2 uses a wrench to remove the two anchor screws at the junction box end, removes the motor junction box and power cord;

[0007] (3) Forklift hoisting: Worker No. 1 lifts out the old motor, uses a forklift to lift the new motor, and aligns the new motor; Worker No. 2 connects the main motor power cable, installs the two anchor screws at the terminal box end, and connects the fan power cable;

[0008] (4) Before shutting down, lay out the wires and press the terminal noses. Prepare a cooling fan wire and a temperature signal wire at the motor site, a pressure sensor wire and a start-up signal wire at the press site, and three power input wires, three inverter output wires, module power wires, and star-delta signal wires in the power distribution cabinet. The power wires and control wires are all sleeved and the terminal markings are done well.

[0009] (5) Shutdown work: The third staff member cuts off the main power circuit breaker of the power distribution cabinet, pulls out the fuse, connects the three-phase power line of the drive cabinet to the upper screw of the fuse, connects the three-phase output line of the drive cabinet to the motor lead line with the terminal block, connects the main contactor and the normally open auxiliary contact, makes the drive cabinet, the driver, and the start signal, and installs the mutual inductor; the fourth staff member coordinates the on-site press supervisor to evacuate the hydraulic pump, install the pressure sensor, connect the wires, install the press control cabinet stamping signal line, and make emergency response preparations;

[0010] (6) Turn on the machine: Determine the direction of the machine head, determine the direction of the motor cooling fan, and determine whether the pressure is normal.

[0011] Preferably, in the step (1), the motor extension cord is covered with a high temperature resistant sheath, and is rolled firmly with a rolling strip and then wrapped with adhesive tape on both sides.

[0012] Preferably, in step (2), the second worker first uses an electrician's test pen to test the electricity, and then uses a cross screwdriver and a socket to remove the motor junction box and the power cord after installing the grounding wire.

[0013] Preferably, in step (3), the first worker aligns the new motor, aligns the coupling and nylon rod using a long-handled flat-blade screwdriver from the oil pump observation well, screws the motor flange to the oil pump flange, and installs two anchor screws. The second worker connects the main motor power cord. If the power cord needs to be extended, connect the extension cord to the new motor in advance before shutting down the machine, and prepare the docking terminal or three sets of screws.

[0014] Preferably, in step (5), before disconnecting the main power circuit breaker of the distribution cabinet, the third worker first uses a test pen to test the electricity and then touches the switch of the removed motor with the back of his finger before proceeding with the work. The fourth worker's emergency response preparations include: a spare inverter, with mounting feet, parameter settings, seamless connection, and a spare motor.

[0015] The beneficial effects of the present invention are as follows: the present method can greatly shorten the time for resuming production, improve the efficiency of disassembling and assembling the motor, reduce costs and increase efficiency, improve the economic benefits of the enterprise, and has broad application prospects. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0017] This specific embodiment adopts the following technical solution: a permanent magnet servo motor disassembly and assembly process for a ceramic hydraulic press, the steps of which are:

[0018] (1) Preparation: Worker No. 1 and Worker No. 2 prepare the disassembly and assembly tools, and at the same time, prepare the support pad under the oil pump, remove the oil pump observation cover, check the direction of the oil pump, and check the high and low pressure range; put the forklift in place, install the lifting motor wire rope, and install the forklift extension arm; make the motor extension cable, cover the motor extension cable with a high-temperature resistant sheath, roll it with a rolling belt, and then wrap both sides with tape, and install the spare coupling.

[0019] (2) Worker No. 1 uses an electric wrench and socket to remove the flange screws, uses a wrench to remove the two anchor screws on the non-junction box end of the motor, and uses a crowbar to separate the motor and the oil pump;

[0020] Staff No. 2 used a wrench to remove the two anchor screws at the end of the junction box, and removed the motor junction box and power cord. Staff No. 2 first tested the electricity with an electrician's pen, and then installed the grounding wire before using a cross screwdriver and socket to remove the motor junction box and power cord.

[0021] (3) Forklift hoisting: Worker No. 1 lifts out the old motor, and uses a forklift to lift the new motor. He aligns the new motor, uses a long-handled flat-blade screwdriver to align the coupling and nylon rod from the oil pump observation well, screws the motor flange and the oil pump flange together, and installs two anchor screws.

[0022] Staff No. 2 connects the main motor power cord. If the power cord needs to be extended, connect the extension cord to the new motor in advance before shutting down the machine, and prepare the docking terminal or three sets of screws; install the two anchor screws at the terminal end of the junction box and connect the fan power cord.

[0023] (4) Before shutting down, lay out the wires and press the terminal noses. Prepare a cooling fan wire and a temperature signal wire at the motor site, a pressure sensor wire and a start-up signal wire at the press site, and three power input wires, three inverter output wires, module power wires, and star-delta signal wires in the power distribution cabinet. The power wires and control wires are all sleeved and the terminal markings are done well.

[0024] (5) Shutdown work: The third staff member cuts off the main power circuit breaker of the power distribution cabinet, pulls out the fuse, connects the three-phase power line of the drive cabinet to the upper screw of the fuse, connects the three-phase output line of the drive cabinet to the motor lead line with the terminal block, connects the main contactor and the normally open auxiliary contact, makes the drive cabinet, the driver, and the start signal, and installs the mutual inductor;

[0025] Staff member No. 4 coordinated with the on-site press supervisor to evacuate the hydraulic pump, install the pressure sensor, connect the wiring, install the press control cabinet stamping signal line, and make emergency response preparations;

[0026] (6) Turn on the machine: Determine the direction of the machine head, determine the direction of the motor cooling fan, and determine whether the pressure is normal.

[0027] It is worth noting that in step (5), before disconnecting the main power circuit breaker of the distribution cabinet, the third worker first tested the power with an electrician's pen and then touched the switch of the motor to be removed with the back of his finger before proceeding with the work. The fourth worker's emergency response preparations included: a spare inverter, with mounting feet, parameter settings, seamless connection, a spare motor, and a manual for emergency solution to the problem.

[0028] This specific embodiment requires emergency measures during disassembly and assembly. If a system control problem occurs: first, enter standby mode, loosen the system pressure solenoid valve handle counterclockwise, adjust the system pressure, and change the standby frequency, low frequency setting, and high frequency setting on the touch screen. If a touch screen malfunction occurs: first, stop the machine, loosen the system pressure solenoid valve handle counterclockwise, adjust the system pressure, and modify the inverter parameters.

[0029] This specific implementation method significantly shortens the time required to restore a press machine to production to 30 minutes through process improvement and division of labor optimization, while reducing costs and increasing efficiency, effectively improving the economic benefits of the enterprise, and has broad market application prospects.

[0030] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for disassembling and assembling a permanent magnet servo motor for a ceramic hydraulic press, characterized in that: The steps are: (1) Preparation: Worker No. 1 and Worker No. 2 prepare the disassembly and assembly tools, and at the same time, make a support pad under the oil pump, remove the oil pump observation cover, check the direction of the oil pump, and check the high and low pressure range; put the forklift in place, install the lifting motor wire rope, install the forklift extension fork arm; make the motor extension cable, and install the spare coupling; (2) Worker No. 1 uses an electric wrench and a socket to remove the flange screws, uses a wrench to remove the two anchor screws at the non-junction box end of the motor, and uses a crowbar to separate the motor and the oil pump; Worker No. 2 uses a wrench to remove the two anchor screws at the junction box end, removes the motor junction box and power cord; (3) Forklift hoisting: Worker No. 1 lifts out the old motor, uses a forklift to lift the new motor, and aligns the new motor; Worker No. 2 connects the main motor power cable, installs the two anchor screws at the terminal box end, and connects the fan power cable; (4) Before shutting down, lay out the wires and press the terminal noses. Prepare a cooling fan wire and a temperature signal wire at the motor site, a pressure sensor wire and a start-up signal wire at the press site, and three power input wires, three inverter output wires, module power wires, and star-delta signal wires in the power distribution cabinet. The power wires and control wires are all sleeved and the terminal markings are done well. (5) Shutdown work: The third staff member cuts off the main power circuit breaker of the power distribution cabinet, pulls out the fuse, connects the three-phase power line of the drive cabinet to the upper screw of the fuse, connects the three-phase output line of the drive cabinet to the motor lead line with the terminal block, connects the main contactor and the normally open auxiliary contact, makes the drive cabinet, the driver, and the start signal, and installs the mutual inductor; the fourth staff member coordinates the on-site press supervisor to evacuate the hydraulic pump, install the pressure sensor, connect the wires, install the press control cabinet stamping signal line, and make emergency response preparations; (6) Turn on the machine: Determine the direction of the machine head, determine the direction of the motor cooling fan, and determine whether the pressure is normal.

2. The method for disassembling and assembling a permanent magnet servo motor for a ceramic hydraulic press according to claim 1, characterized in that: In the step (1), the motor extension wire is covered with a high temperature resistant sheath, and is rolled firmly with a rolling strip and then wrapped with adhesive tape on both sides.

3. The method for disassembling and assembling a permanent magnet servo motor for a ceramic hydraulic press according to claim 1, characterized in that: In the step (2), the second worker first uses an electrician to test the electricity, and then uses a cross screwdriver and a socket to remove the motor junction box and the power cord after installing the grounding wire.

4. The method for disassembling and assembling a permanent magnet servo motor for a ceramic hydraulic press according to claim 1, characterized in that: In step (3), worker No. 1 aligns the new motor, uses a long-handled flat-blade screwdriver to align the coupling and nylon rod from the oil pump observation well, screws the motor flange and the oil pump flange together, and installs two anchor screws.

5. The permanent magnet servo motor disassembly and assembly process for a ceramic hydraulic press according to claim 1, characterized in that: In step (3), the second worker connects the main motor power cord. If the power cord needs to be extended, the extension cord should be connected to the new motor in advance before shutting down the machine, and the docking terminal or three sets of screws should be prepared.

6. The method for disassembling and assembling a permanent magnet servo motor for a ceramic hydraulic press according to claim 1, characterized in that: In the step (5), before the third worker cuts off the main power circuit breaker of the distribution cabinet, he first uses a test pen to test the electricity and then touches the switch of the dismantled motor with the back of his finger before construction.

7. The method for disassembling and assembling a permanent magnet servo motor for a ceramic hydraulic press according to claim 1, characterized in that: The emergency response preparation of the fourth staff member in step (5) includes: a spare frequency converter, installation feet, setting parameters, seamless connection, and a spare motor.