Pneumatic magnetic steel sheet mounting mechanism of permanent magnet submersible motor

Abstract

The utility model discloses a permanent magnet submersible motor pneumatic type magnetic steel sheet installation mechanism which comprises an equipment main body, a pneumatic mechanism is arranged on the equipment main body, one end of the pneumatic mechanism is connected with an air pump, the other end of the pneumatic mechanism is connected with a magnetic steel sheet clamping groove, a magnetic flux sensor is arranged beside the magnetic steel sheet clamping groove, and the magnetic flux sensor is connected with an alarm. And the magnetic flux sensor and the alarm are respectively connected with the controller. The device is simple in structure and convenient to operate, can realize rapid installation of the magnetic steel sheets through a pneumatic mechanism, has the functions of magnetic flux detection of the magnetic steel sheets, size detection of the magnetic steel sheets and counting of the magnetic steel sheets, and is wide in application range and high in practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of autonomous production and assembly of permanent magnet motors, in particular to a pneumatic magnetic steel sheet installation mechanism for a permanent magnet submersible motor. Background Art

[0002] my country's marine oil and gas resources account for 1 / 3 of the country's total oil and gas resources. Offshore oil production generally uses submersible electric pumps to lift the oil. At present, permanent magnet submersible motors have become a widely used product on offshore platforms due to their excellent energy-saving performance.

[0003] In the production and assembly process of permanent magnet submersible motors, there is a process of placing magnetic steel sheets inside the stator of the permanent magnet motor. Since there is a repulsive force between every two magnetic steel sheets, the installation process is more difficult to operate. At the same time, due to the attractive force between the magnetic steel sheets, it is easy to cause hand injuries during operation. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a pneumatic magnetic steel sheet installation mechanism for a permanent magnet submersible motor, which can realize rapid installation of the magnetic steel sheet through the pneumatic mechanism, and at the same time has the functions of magnetic steel sheet magnetic flux detection, magnetic steel sheet size detection, and magnetic steel sheet counting, and is highly practical.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a permanent magnet submersible motor pneumatic magnetic steel sheet installation mechanism, including an equipment main body, a pneumatic mechanism is provided on the equipment main body, one end of the pneumatic mechanism is connected to the air pump, and the other end of the pneumatic mechanism is connected to the magnetic steel sheet slot, a magnetic flux sensor is provided next to the magnetic steel sheet slot, the magnetic flux sensor is connected to an alarm, and the magnetic flux sensor and the alarm are respectively connected to a controller.

[0006] Furthermore, the device body is a "7"-shaped shell, and the device body includes a vertical portion and a horizontal portion, and the pneumatic mechanism, the magnetic steel sheet slot, the magnetic flux sensor and the alarm are all placed on the upper surface of the horizontal portion.

[0007] Furthermore, the pneumatic mechanism is connected to the air pump via a hose.

[0008] Furthermore, the width dimension of the magnetic steel sheet slot is ±0.1 mm of the nominal width dimension of the magnetic steel sheet, and the concave curvature of the magnetic steel sheet slot is ±0.5° of the nominal curvature of the magnetic steel sheet.

[0009] Furthermore, the magnetic steel sheet slot is connected to the magnetic steel sheet introduction funnel, and an introduction port is provided at the top of the magnetic steel sheet introduction funnel, and the size of the introduction port is consistent with the size of the motor stator slot.

[0010] Furthermore, the magnetic flux sensor model is FS-CCT.

[0011] Furthermore, the alarm is an audible and visual alarm.

[0012] Furthermore, the controller is a PLC controller.

[0013] Furthermore, a counter is provided above the pneumatic mechanism, and the counter is connected to the controller.

[0014] Furthermore, the counter is a spring counter.

[0015] The advantages and positive effects of the utility model are:

[0016] The utility model has a simple structure and is easy to operate. It can realize the rapid installation of magnetic steel sheets through a pneumatic mechanism and simultaneously has the functions of magnetic flux detection, magnetic steel sheet size detection and magnetic steel sheet counting. It has a wide range of applications and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0018] Figure 2 It is a working principle diagram of an embodiment of the utility model.

[0019] Figure 3 This is a magnetic flux sensor signal acquisition diagram of an embodiment of the utility model.

[0020] Figure 4 It is a circuit diagram of an alarm device according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Pneumatic mechanism; 2. Air pump; 3. Magnetic steel sheet slot;

[0023] 4. Magnetic steel sheet introduction funnel 5. Magnetic flux sensor; 6. Alarm;

[0024] 7. Controller; 8. Equipment body; 9. Counter. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0029] like Figure 1 As shown, a pneumatic magnetic steel sheet installation mechanism for a permanent magnet submersible motor includes a device body 8, which is a "7"-shaped shell, and includes a vertical portion and a horizontal portion. A pneumatic mechanism 1 is provided on the device body 8, one end of the pneumatic mechanism 1 is connected to an air pump 2 through a hose, and the other end of the pneumatic mechanism 1 is connected to a magnetic steel sheet slot 3, a magnetic flux sensor 5 is provided next to the magnetic steel sheet slot 3, the magnetic flux sensor 5 is connected to an alarm 6, and the magnetic flux sensor 5 and the alarm 6 are respectively connected to a controller 7. Specifically, the pneumatic mechanism 1, the magnetic steel sheet slot 3, the magnetic flux sensor 5 and the alarm 6 are all placed on the upper surface of the horizontal portion.

[0030] Specifically, the width dimension of the magnetic steel sheet slot 3 is the nominal width dimension of the magnetic steel sheet ±0.1mm, and the concave curvature of the magnetic steel sheet slot 3 is the nominal curvature of the magnetic steel sheet ±0.5°. When the magnetic steel sheet is installed, a magnetic steel sheet with too large a width dimension deviation or too large a curvature deviation cannot be installed in the magnetic steel sheet slot 3, thereby playing the role of detecting the size of the magnetic steel sheet.

[0031] Preferably, the magnetic steel sheet slot 3 is connected to the magnetic steel sheet introduction funnel 4, and an introduction port is provided at the top of the magnetic steel sheet introduction funnel 4. The size of the introduction port is consistent with the size of the motor stator slot, which is convenient for placing the magnetic steel sheet inside the permanent magnet motor stator.

[0032] The magnetic flux sensor 5 is made based on the principle of magnetoelastic effect of ferromagnetic materials. That is, when the external mechanical load on the ferromagnetic material changes, the internal magnetization intensity (magnetic permeability) changes. By measuring the change in magnetic permeability of the component made of ferromagnetic material, the internal force of the component is determined. The magnetic flux sensor 5 can be any model that can realize the above functions. Specifically, the magnetic flux sensor 5 provided in this embodiment is FS-CCT type, which is used to detect whether the magnetic flux of the magnetic steel sheet is qualified. When the magnetic flux sensor 5 senses that the magnetic flux of the magnetic steel sheet is unqualified, the magnetic flux sensor 5 sends a signal to the controller 7, and the controller 7 drives the alarm 6 to sound an alarm to notify the staff.

[0033] The alarm 6 is any structure that realizes the above functions. Specifically, the alarm 6 provided in this embodiment is an audible and visual alarm.

[0034] Preferably, a counter 10 is provided above the pneumatic mechanism 1, and the counter 10 is connected to the controller 7 for performing magnetic steel sheet technology. The counter 10 is any structure that realizes the above functions. Specifically, the counter 10 provided in this embodiment is a spring counter 10.

[0035] The controller 7 can use a variety of signals and technologies to achieve the above functions. These signals and technologies include: orthogonal signals, CDMA, TDMA, FDMA, OFDMA, ultra-wideband signals, chirp signals, laser signals and many other signals. The signals between the controller 7 and each device can be modulated (AM, FM, PSK, FSK, MSK, QAM or any other possible modulation can be used) or can be encoded or configured in other ways to contain timing, synchronization, control, data, multipath signal component identification, security code, information to ensure proper operation and redundancy. The signals between the controller 7 and each device can include Gold code, PN code, M-Sequence code, Walsh code, Walsh-Hadamard code or any other coding. The controller 7 can be a conventional chip, single-chip microcomputer or microprocessor and other devices. Specifically, the controller 7 provided in this embodiment is a PLC controller 7. Modules with corresponding functions drive the above devices to achieve the above functions, which will not be repeated here.

[0036] The connection modes of the controller 7 and the magnetic flux sensor 5, the alarm 6 and the counter 9 include wired connection and wireless connection. The wired connection can be connected through serial bus, P1394, Thunderbolt and the like. The wires in the wired connection are not in the Figure 1 The working principle of each device is as follows: Figure 2The wireless connection can be connected via Bluetooth, Bluetooth Low Energy, WIFI, Zigbee, etc. The controller 7, the magnetic flux sensor 5, the alarm 6, and the counter 9 can receive power via a wired or wireless connection, or can receive power from a disposable battery or a rechargeable battery.

[0037] The working principle of the utility model is as follows:

[0038] Put the magnetic steel sheet into the magnetic steel sheet slot 3. When the size of the magnetic steel sheet is large, it cannot be completely put into the magnetic steel sheet slot 3. When the size of the magnetic steel sheet is small, it will shake when put into the magnetic steel sheet slot 3, thereby detecting the magnetic steel sheet with unqualified size.

[0039] After the magnetic steel sheet is placed in the magnetic steel sheet slot 3, the magnetic flux sensor 5 is used to detect whether the magnetic flux of the magnetic steel sheet is qualified. When the magnetic flux sensor 5 senses that the magnetic flux of the magnetic steel sheet is unqualified, the magnetic flux sensor 5 sends a signal to the controller 7, and the controller 7 drives the alarm 6 to sound an alarm and notify the staff, thereby detecting the magnetic steel sheet with unqualified magnetic flux.

[0040] The magnetic steel sheet is in the magnetic steel sheet slot 3, which is connected to the magnetic steel sheet introduction funnel 4. The top of the magnetic steel sheet introduction funnel 4 is provided with an introduction port, and the size of the introduction port is consistent with the size of the motor stator slot, which is convenient for placing the magnetic steel sheet inside the permanent magnet motor stator.

[0041] Specifically, the circuit diagram of the magnetic flux sensor data acquisition is as follows Figure 3 As shown in the figure, the A / D conversion circuit uses the commonly used chip ADC0809, and the output end of the magnetic flux sensor is connected to IN0 of ADC0809. Figure 3 It can be seen that the channel selection addresses A, B, and C of ADC0809 are provided by P0.0~P0.2 of 89C51 through the output of address latch 74LS373. When P2.7=0, it is selected together with the write signal WR to select ADC0809. Figure 3 The ALE signal is connected with the ST signal, the address signal is written at the leading edge of the WR signal, and the conversion is started at the trailing edge. For example, when the output address is 7FF8H, the channel IN0 can be selected to convert the analog output of the magnetic flux sensor. Figure 3 The conversion end status signal EOC of ADC0809 is connected to the INT1 pin of 89C51. When the A / D conversion is completed, EOC becomes high level, indicating that the conversion is completed and an interrupt is generated. In the interrupt service program, the converted data is sent to the specified storage unit.

[0042] The alarm circuit selected in this embodiment is controlled by the controller P3.7 port, outputs an alarm signal, and drives the alarm circuit until the reset key RESET and the power key are pressed.

[0043] The alarm circuit consists of a 555 timer, a sounder and a common light-emitting diode. The circuit diagram is as follows: Figure 4 shown.

[0044] The 555 timer is connected to a low-frequency multivibrator, and its control voltage input and output terminal 5 is connected to the P3.7 terminal of the controller 7 based on AT89C51, and is controlled by the pulse signal output from the P3.7 terminal. Due to the charging and discharging effect of capacitor C4, when P3.7=1, the oscillation frequency of the 555 output pulse is low, and when P3.7=0, the oscillation frequency of the 555 output pulse is high. The pulse signal is added to the sounder through the separated capacitor C2, and the sounder will emit two kinds of high and low alternating sounds. At the same time, the high and low level pulse signal output by the P3.7 pin with an interval of 1s is added to the light-emitting diode LED through the resistor R1, and the LED will flash and emit light, achieving the effect of simultaneous sound and light alarm.

[0045] The advantages and positive effects of the utility model are:

[0046] The utility model has a simple structure and is easy to operate. It can realize the rapid installation of magnetic steel sheets through a pneumatic mechanism and simultaneously has the functions of magnetic flux detection, magnetic steel sheet size detection and magnetic steel sheet counting. It has a wide range of applications and strong practicality.

[0047] The above is a detailed description of the embodiments of the utility model, but the contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A pneumatic magnetic steel sheet installation mechanism for a permanent magnet submersible motor, characterized in that: It includes a device body, which is provided with a pneumatic mechanism. One end of the pneumatic mechanism is connected to an air pump, and the other end of the pneumatic mechanism is connected to a magnetic steel sheet slot. A magnetic flux sensor is provided next to the magnetic steel sheet slot, and the magnetic flux sensor is connected to an alarm. The magnetic flux sensor and the alarm are respectively connected to a controller.

2. A pneumatic magnetic steel sheet installation mechanism for a permanent magnet submersible motor according to claim 1, characterized in that: The device body is a "7"-shaped shell, and the device body includes a vertical portion and a horizontal portion. The pneumatic mechanism, the magnetic steel sheet slot, the magnetic flux sensor and the alarm are all placed on the upper surface of the horizontal portion.

3. A pneumatic magnetic steel sheet installation mechanism for a permanent magnet submersible motor according to claim 1 or 2, characterized in that: The pneumatic mechanism is connected to the air pump through a hose.

4. A pneumatic magnetic steel sheet installation mechanism for a permanent magnet submersible motor according to claim 1 or 2, characterized in that: The width dimension of the magnetic steel sheet slot is the nominal width dimension of the magnetic steel sheet ±0.1 mm, and the concave curvature of the magnetic steel sheet slot is the nominal curvature of the magnetic steel sheet ±0.5°.

5. A pneumatic magnetic steel sheet installation mechanism for a permanent magnet submersible motor according to claim 1 or 2, characterized in that: The magnetic steel sheet slot is connected to the magnetic steel sheet introduction funnel, and the top of the magnetic steel sheet introduction funnel is provided with an introduction port, and the size of the introduction port is consistent with the size of the motor stator slot.

6. A pneumatic magnetic steel sheet installation mechanism for a permanent magnet submersible motor according to claim 1 or 2, characterized in that: The magnetic flux sensor model is FS-CCT.

7. A pneumatic magnetic steel sheet installation mechanism for a permanent magnet submersible motor according to claim 1 or 2, characterized in that: The alarm is an audible and visual alarm.

8. A pneumatic magnetic steel sheet installation mechanism for a permanent magnet submersible motor according to claim 1 or 2, characterized in that: The controller is a PLC controller.

9. A pneumatic magnetic steel sheet installation mechanism for a permanent magnet submersible motor according to claim 1 or 2, characterized in that: A counter is arranged above the pneumatic mechanism, and the counter is connected to the controller.

10. The pneumatic magnetic steel sheet installation mechanism for a permanent magnet submersible motor according to claim 9, characterized in that: The counter is a spring counter.

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