A permanent magnet speed regulator assembly installation platform and debugging method

Abstract

The present invention discloses a permanent magnet speed regulator assembly installation platform and debugging method, wherein the installation platform is composed of a displacement platform, a roller and a support, a support plate is arranged on the left side of the displacement platform, a displacement plate is slidably connected to the right side of the displacement platform, and a support is arranged on the displacement plate, a displacement rod is connected to the left end of the displacement plate, and the displacement rod is slidably connected to the displacement platform, a plug rod is inserted at the top of the displacement rod, a positioning ring is arranged on the plug rod, and a roller is arranged at the bottom of the displacement platform. The present invention is suitable for debugging operations of disc-type permanent magnet speed regulator actuators in large, medium and small generator sets at home and abroad, and can accurately control the debugging process of the disc-type permanent magnet speed regulator actuator, ensure that the debugging work is connected with each other, ensure the reliability of the debugging process, and ensure the accurate speed regulation of the motor in the later operation process.

Description

Technical field:

[0002] The invention relates to a debugging method for a permanent magnet motor, and in particular to a permanent magnet speed regulator component installation platform and a debugging method. Background technology:

[0004] Compared with traditional transmission speed regulation devices, permanent magnet speed regulators solve the problems of rotating load system centering, soft starting, shock absorption, speed regulation, overload protection, etc., and the transmission efficiency is greatly improved; the permanent magnet speed regulator achieves the purpose of speed regulation and energy saving by realizing repeatable, adjustable and controllable output torque and speed. The permanent magnet speed regulator is mainly composed of three parts: conductor rotor, permanent magnet rotor and adjustment mechanism. The permanent magnet speed regulator adjusts the distance between the conductor rotor and the permanent magnet rotor, that is, adjusts the gap size. The larger the gap, the smaller the transmitted torque and the lower the load speed, and vice versa.

[0005] When debugging the existing permanent magnet speed regulator actuator, the debugging time is often too long and the debugging quality is not high due to the lack of standardized methods. In addition, in the early stage of debugging, when assembling the speed regulator, the lack of professional tools will cause low assembly efficiency. Summary of the invention:

[0007] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a permanent magnet speed regulator assembly installation platform and a debugging method, clarify the debugging steps, speed up the debugging progress, save debugging time, and reduce debugging costs.

[0008] The technical solution adopted by the present invention to solve the technical problem is:

[0009] A permanent magnet speed regulator assembly mounting platform comprises a displacement platform, displacement rods are slidably connected to both sides of the displacement platform, and insertion rods are inserted at the tops of the two displacement rods and fixed by bolts, a support plate is provided at the left end of the displacement platform, a displacement plate is slidably connected to the right end of the displacement platform, the left end of the displacement plate is fixedly connected to the right side surface of the displacement rod, a support is provided above the displacement plate, a displacement sleeve is slidably connected to the insertion rod, and a positioning ring is provided below the displacement sleeve.

[0010] A fourth screw rod is arranged at the left end of the displacement platform, the support plate is sleeved on the first screw rod, and limited position nuts are arranged on the first screw rod above and below the support plate.

[0011] First displacement grooves are respectively arranged on both sides of the displacement platform, and the bottom of the displacement rod is slidably connected with the first displacement grooves through a sliding block.

[0012] The displacement sleeve is fixedly connected to the insertion rod by bolts, and a first screw is arranged at the bottom of the displacement sleeve, the lower end of the first screw is connected to a sleeve by a thread, and a positioning ring is arranged at the bottom of the sleeve, a second screw is inserted through the positioning ring, and a locking nut is arranged at the end of the second screw.

[0013] The top surface of the displacement platform is provided with a second displacement groove, and the bottom of the displacement plate is slidably connected with the second displacement groove via a sliding block.

[0014] The four corners of the displacement plate are provided with third screw rods, the support is sleeved on the third screw rods and fixed by nuts, and an arc-shaped groove is dug in the middle of the support.

[0015] A roller is arranged at the bottom of the displacement platform.

[0016] The method for debugging a permanent magnet speed regulator assembly installation platform comprises the following steps:

[0017] S1: Motor base installation:

[0018] 1. Place the permanent magnet motor on the support plate, place the motor base on the support, and adjust the support plate up and down according to the height of the motor base on the support;

[0019] 2. Rotate the sleeve so that the position of the locating ring corresponds to the position of the hanging ring on the motor base;

[0020] , pass the second screw through the positioning ring and the hanging ring on the motor base in sequence, and fix them with locking nuts;

[0021] , move the displacement rod, align the motor base with the output end of the motor, and install it. After the installation is completed and other components are installed in sequence, the permanent magnet speed regulator actuator can be adjusted;

[0022] S2: Debugging of permanent magnet speed regulator actuator:

[0023] A. Construction preparation:

[0024] , Preparation of debugging tools, equipment and materials:

[0025] a. Prepare debugging tools according to debugging needs and ensure that the multimeter and megger are within the effective period of use;

[0026] b. Prepare the equipment and materials required for debugging: remote control, raw tape, insulating tape;

[0027] 1. Check the power circuit breaker capacity: According to the actuator nameplate, the actuator power circuit breaker capacity must be greater than 1.2 times the actuator rated current;

[0028] , On-site equipment, line confirmation:

[0029] a. Check that the valve body and actuator are not damaged, the installation position should meet the design requirements, and the insulation of the power cord should be qualified;

[0030] b. The command line and feedback line are divided into positive and negative, and the positive and negative of the command and feedback wiring terminals of the speed regulator actuator are ensured to be consistent with the positive and negative of the AO and AI cards in the electronics room, and the feedback wiring in the electronics room is connected in a non-powered mode;

[0031] B. Specific operation steps:

[0032] , check the power line, perform insulation test on the electric head, and verify the command line and feedback line;

[0033] 1. Power supply: Set the maximum and minimum opening of the actuator, set the opening position of the actuator to a value between 4 and 5 mm for the air gap on both sides of the permanent magnet speed regulator, and reciprocate several times to check whether the air gap on both sides of the permanent magnet speed regulator is uniform, and perform routine debugging;

[0034] 1. When the actuator is confirmed to be in the 0 position, start the fan or electric water pump, give the actuator control signal from 0 to 100%, detect the equipment operation status, and respectively detect: the vibration value, current value, operating temperature, oil temperature, oil pressure, and interlocking test output of the motor, permanent magnet speed regulator, and load to see if they meet the requirements;

[0035] 1. Wait for the unit to start. When the unit reaches full load, recheck the actuator travel switch limit and set the gap when the load reaches the rated speed to the open limit;

[0036] C. Static debugging:

[0037] 1. Power supply: Power supply after the local valve power line is checked to be qualified and there is no grounding or short circuit phenomenon;

[0038] 1. Actuator opening position setting: Under static conditions, the air-cooled speed regulator is set to open between 4mm and 5mm at 100°. When the load speed is less than 1400, it can be adjusted to 3.2mm. Repeat the switch test several times to check whether the air gap on both sides of the permanent magnet speed regulator is uniform.

[0039] 1. Setting the actuator closed position: Pay attention to the mechanical limit. When you use the actuator manual wheel to shake the handle in the closing direction and encounter resistance, shake it back 5 times to set it to the closed position.

[0040] 1. Adjustment of torque value: Set the maximum closing torque of the actuator to 75% and the opening torque to 80% to ensure that the opening torque is greater than or equal to the closing torque to prevent the actuator from failing to move during operation;

[0041] 1. Dead zone adjustment: The dead zone of the actuator is set to 1%. When it is greater than 1%, the instructions, feedback and speed of the actuator cannot maintain linear synchronization. When it is less than 1%, the actuator will oscillate and the self-holding effect will deteriorate.

[0042] 2. Remote operation test: The main control room sends out control signals to check the background control logic, deviations between command feedback and the working conditions of the local actuators;

[0043] D. Dynamic debugging:

[0044] 1. Confirm that the actuator is in the closed position, start the fan or electric water pump, give the actuator control signal from 0 to 100%, and test the vibration value and current value of the motor, permanent magnet speed regulator, and load, and check whether the current set switch limit meets the normal operation of the load equipment;

[0045] 2. Wait for the unit to run at full load, check whether the load reaches the rated speed, and set the corresponding feedback at this time as the open limit. If 66% can be reached at 2700 rpm, reset it to 100% at 75%.

[0046] The positive beneficial effects of the present invention are:

[0047] 1. The present invention provides a permanent magnet speed regulator assembly installation platform to facilitate rapid assembly of the permanent magnet motor. The motor is placed on a support plate and the height of the support plate is adjusted by a limit nut so that the motor and the motor base are located on the same horizontal line. The second screw is passed through the positioning ring to facilitate fixing the motor base and the second screw, so that the staff can quickly and accurately install the motor base, thereby reducing the burden on the staff, improving work efficiency, and being easy to use and simple to operate.

[0048] 2. The present invention is applicable to the debugging operation of disc-type permanent magnet speed regulator actuators in large, medium and small-sized generator sets at home and abroad. It can accurately control the debugging process of the disc-type permanent magnet speed regulator actuator, ensure the interconnection of the debugging work, ensure the reliability of the debugging process, and ensure the accurate speed regulation of the motor in the later operation process.

[0049] 3. The debugging work steps of the present invention are standardized, and the two processes of static debugging and dynamic debugging are formed. The static debugging and dynamic debugging processes restrict each other. Dynamic debugging is carried out after the static debugging is qualified. After the dynamic debugging is completed, the debugging of the disc permanent magnet speed regulator actuator is completed, avoiding repeated starting of the motor during dynamic debugging, thereby achieving energy saving effect. Description of the drawings:

[0051] Figure 1 It is a structural schematic diagram of the permanent magnet speed regulator assembly installation platform of the present invention;

[0052] Figure 2 for Figure 1 Schematic diagram of the structure of the mid-displacement platform;

[0053] Among them: 1-displacement platform, 2-roller, 3-first displacement groove, 4-displacement rod, 5-insertion rod, 6-displacement sleeve, 7-first screw, 8-sleeve, 9-positioning ring, 10-second screw, 11-locking nut, 12-displacement plate, 13-second displacement groove, 14-third screw, 15-support, 151-arc groove, 16-fourth screw, 17-support plate, 18-limiting nut. Specific implementation method:

[0055] The present invention will be further explained and illustrated below in conjunction with the accompanying drawings:

[0056] Example 1, see Figure 1-Figure 2 A permanent magnet speed regulator assembly installation platform includes a displacement platform 1, displacement rods 4 are slidably connected on both sides of the displacement platform 1, and insertion rods 5 are inserted at the tops of the two displacement rods 4 and fixed by bolts, a support plate 17 is provided at the left end of the displacement platform 1, a displacement plate 12 is slidably connected at the right end of the displacement platform 1, the left end of the displacement plate 12 is fixedly connected to the right side surface of the displacement rod 4, a support 15 is provided above the displacement plate 12, a displacement sleeve 6 is slidably connected to the insertion rod 5, and a positioning ring 9 is provided below the displacement sleeve 6.

[0057] A fourth screw rod 16 is arranged at the left end of the displacement platform 1 , a support plate 17 is sleeved on the first screw rod 16 , and limit nuts 18 are arranged on the first screw rod 16 above and below the support plate 17 .

[0058] First displacement grooves 3 are respectively provided on the two side surfaces of the displacement platform 1 , and the bottom of the displacement rod 4 is slidably connected to the first displacement grooves 3 via a sliding block.

[0059] The displacement sleeve 6 is fixedly connected to the insertion rod 5 by bolts, and a first screw rod 7 is arranged at the bottom of the displacement sleeve 6, a sleeve 8 is threadedly connected to the lower end of the first screw rod 7, and a positioning ring 9 is arranged at the bottom of the sleeve 8, a second screw rod 10 is inserted through the positioning ring 9, and a locking nut 11 is arranged at the end of the second screw rod 10.

[0060] The top surface of the displacement platform 1 is provided with a second displacement groove 13 , and the bottom of the displacement plate 12 is slidably connected to the second displacement groove 13 via a sliding block.

[0061] The four corners of the displacement plate 12 are provided with third screw rods 14 , and the support 15 is sleeved on the third screw rods 14 and fixed by nuts. An arc-shaped groove 151 is dug in the middle of the support 15 .

[0062] A roller 2 is arranged at the bottom of the displacement platform 1 .

[0063] In the above description, the top of the displacement rod is located above the top of the motor base. When in use, a sleeve of a suitable height is rotated on the first screw rod according to the height of the motor base.

[0064] In the above description, the inner diameter of the locating ring is consistent with the inner diameter of the lifting ring on the top of the motor base;

[0065] In the above description, when in use, a suitable support is freely selected according to the size of the outer diameter of the motor base, so that the arc-shaped groove of the support is tightly attached to the outer wall of the motor base.

[0066] In the above description, when the lifting ring on the top of the motor base is installed on the second screw, the motor base is fixed at this time, and the outer wall of the bottom of the motor base is tightly attached to the arc-shaped groove of the support, and the movable displacement rod is provided at the same time to install the motor base and the motor body together. After the installation is completed, the second screw can be removed.

[0067] In the above description, the displacement plate and the displacement rod are fixedly connected together, and both can move along the displacement platform.

[0068] Embodiment 2: The above-mentioned method for debugging a permanent magnet speed regulator assembly installation platform comprises the following steps:

[0069] S1: Motor base installation:

[0070] , placing the permanent magnet motor on the support plate 17, placing the motor base on the support 15, and adjusting the support plate 17 up and down according to the height of the motor base on the support 15;

[0071] , rotate the sleeve 8 so that the position of the positioning ring 9 corresponds to the position of the hanging ring on the motor base;

[0072] , pass the second screw 10 through the positioning ring 9 and the hanging ring on the motor base in sequence, and fix them with the locking nut 11;

[0073] , move the displacement rod 4, align the motor base with the output end of the motor, and install it. After the installation is completed and the other components are installed in sequence, the permanent magnet speed regulator actuator can be adjusted;

[0074] S2: Debugging of permanent magnet speed regulator actuator:

[0075] A. Construction preparation:

[0076] , Preparation of debugging tools, equipment and materials:

[0077] a. Prepare debugging tools according to debugging needs and ensure that the multimeter and megger are within the effective period of use;

[0078] b. Prepare the equipment and materials required for debugging: remote control, raw tape, insulating tape;

[0079] 1. Check the power circuit breaker capacity: According to the actuator nameplate, the actuator power circuit breaker capacity must be greater than 1.2 times the actuator rated current;

[0080] , On-site equipment, line confirmation:

[0081] a. Check that the valve body and actuator are not damaged, the installation position should meet the design requirements, and the insulation of the power cord should be qualified;

[0082] b. The command line and feedback line are divided into positive and negative, and the positive and negative of the command and feedback wiring terminals of the speed regulator actuator are ensured to be consistent with the positive and negative of the AO and AI cards in the electronics room, and the feedback wiring in the electronics room is connected in a non-powered mode;

[0083] B. Specific operation steps:

[0084] , check the power line, perform insulation test on the electric head, and verify the command line and feedback line;

[0085] 1. Power supply: Set the maximum and minimum opening of the actuator, set the opening position of the actuator to a value between 4 and 5 mm for the air gap on both sides of the permanent magnet speed regulator, and reciprocate several times to check whether the air gap on both sides of the permanent magnet speed regulator is uniform, and perform routine debugging;

[0086] 1. When the actuator is confirmed to be in the 0 position, start the fan or electric water pump, give the actuator control signal from 0 to 100%, detect the equipment operation status, and respectively detect: the vibration value, current value, operating temperature, oil temperature, oil pressure, and interlocking test output of the motor, permanent magnet speed regulator, and load to see if they meet the requirements;

[0087] 1. Wait for the unit to start. When the unit reaches full load, recheck the actuator travel switch limit and set the gap when the load reaches the rated speed to the open limit;

[0088] C. Static debugging:

[0089] 1. Power supply: Power supply after the local valve power line is checked to be qualified and there is no grounding or short circuit phenomenon;

[0090] 1. Actuator opening position setting: Under static conditions, the air-cooled speed regulator is set to open between 4mm and 5mm at 100°. When the load speed is less than 1400, it can be adjusted to 3.2mm. Repeat the switch test several times to check whether the air gap on both sides of the permanent magnet speed regulator is uniform.

[0091] 1. Setting the actuator closed position: Pay attention to the mechanical limit. When you use the actuator manual wheel to shake the handle in the closing direction and encounter resistance, shake it back 5 times to set it to the closed position.

[0092] 1. Adjustment of torque value: Set the maximum closing torque of the actuator to 75% and the opening torque to 80% to ensure that the opening torque is greater than or equal to the closing torque to prevent the actuator from failing to move during operation;

[0093] 1. Dead zone adjustment: The dead zone of the actuator is set to 1%. When it is greater than 1%, the instructions, feedback and speed of the actuator cannot maintain linear synchronization. When it is less than 1%, the actuator will oscillate and the self-holding effect will deteriorate.

[0094] 2. Remote operation test: The main control room sends out control signals to check the background control logic, deviations between command feedback and the working conditions of the local actuators;

[0095] D. Dynamic debugging:

[0096] 1. Confirm that the actuator is in the closed position, start the fan or electric water pump, give the actuator control signal from 0 to 100%, and test the vibration value and current value of the motor, permanent magnet speed regulator, and load, and check whether the current set switch limit meets the normal operation of the load equipment;

[0097] 2. Wait for the unit to run at full load, check whether the load reaches the rated speed, and set the corresponding feedback at this time as the open limit. If 66% can be reached at 2700 rpm, reset it to 100% at 75%.

[0098] In the above description, the following operations are mainly completed:

[0099] , complete the two processes of static debugging and dynamic debugging. The static debugging and dynamic debugging processes restrict each other. After the static debugging is qualified, the dynamic debugging is carried out. After the dynamic debugging is completed, the debugging of the disc permanent magnet speed regulator actuator is completed;

[0100] 2. Accurately control the debugging process of the disc permanent magnet speed regulator actuator to ensure the interconnection of debugging work, ensure the reliability of the debugging process, and ensure the accuracy of speed regulation in the later operation process of the motor;

[0101] (3) Plan the debugging process of the disc permanent magnet speed regulator actuator in advance, reserve the static debugging gap of the actuator in advance, avoid repeated starting of the motor during dynamic debugging, and achieve energy saving effect.

[0102] 2. Based on the characteristics of thermal control debugging work, a standard debugging process for disc permanent magnet speed regulator actuators is formed, and standardized requirements are set for the debugging work steps and processes to improve construction efficiency.

[0103] , clarify the debugging steps, speed up the debugging progress, save debugging time and reduce debugging costs.

[0104] The present invention improves the debugging speed of the permanent magnet speed regulator actuator, shortens the debugging period, improves the debugging quality, and has important forward-looking significance for the development of the debugging of the disc type permanent magnet speed regulator actuator towards standardization and normalization.

Claims

1. A permanent magnet speed regulator assembly mounting platform, comprising a displacement platform (1), characterized in that: The displacement platform (1) is slidably connected to displacement rods (4) on both sides, and insertion rods (5) are inserted at the tops of the two displacement rods (4), and the displacement rods (4) and the insertion rods (5) are fixedly connected by bolts. A support plate (17) is provided at the left end of the displacement platform (1), and a displacement plate (12) is slidably connected to the right end of the displacement platform (1), and the left end of the displacement plate (12) is fixedly connected to the right side of the displacement rod (4). A support (15) is provided above the displacement plate (12), and a displacement sleeve (6) is slidably connected to the insertion rod (5), and a positioning ring (9) is provided below the displacement sleeve (6); a fourth screw rod (16) is provided at the left end of the displacement platform (1), and the support plate (17) is sleeved on the fourth screw rod (16), and limit nuts (18) are provided on the fourth screw rod (16) above and below the support plate (17); first displacement grooves (3) are provided on the two side surfaces of the displacement platform (1), and the displacement rod (4) is fixedly connected to the left end of the displacement plate (12). The bottom is slidably connected to the first displacement groove (3) through a slider; the displacement sleeve (6) is fixedly connected to the insertion rod (5) through bolts, and a first screw rod (7) is arranged at the bottom of the displacement sleeve (6), the lower end of the first screw rod (7) is connected to the sleeve (8) through a thread, and a positioning ring (9) is arranged at the bottom of the sleeve (8), a second screw rod (10) is inserted through the positioning ring (9), and a locking nut (11) is arranged at the end of the second screw rod (10); a second displacement groove (13) is arranged on the top surface of the displacement platform (1), and the bottom of the displacement plate (12) is slidably connected to the second displacement groove (13) through a slider; third screw rods (14) are arranged at the four corners of the displacement plate (12), the support (15) is sleeved on the third screw rod (14) and fixed by nuts, and an arc-shaped groove (151) is dug in the middle of the support (15); a roller (2) is arranged at the bottom of the displacement platform (1).

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