Double-shaft synchronism test platform and system for shielding motor for vacuum dry pump

Abstract

The invention relates to a shield motor double-shaft synchronism test platform and system for a vacuum dry pump, and belongs to the technical field of test devices, the shield motor double-shaft synchronism test platform comprises torque and rotating speed sensors, a gear box and a magnetic powder brake which are connected in sequence, two tested motors are connected with the two torque and rotating speed sensors respectively, and the magnetic powder brake serves as a load end. The load is increased according to actual demands. And a gear in the gear box is completely the same as a gear in a vacuum dry pump which needs to be driven by the tested motor. According to the shielding motor double-shaft synchronism test platform for the vacuum dry pump, the working condition of the motor on a double-shaft pump can be completely simulated, the double-shaft synchronism test of the shielding motor for the vacuum dry pump is completed, and the synchronism and basic performance test of the driving motor of the double-shaft pump is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of test devices, and particularly relates to a shielding motor biaxial synchronism test platform and system for a vacuum dry pump. Background Art

[0002] A dual-drive vacuum dry pump is usually driven by two motors simultaneously. Each motor drives a vacuum pump rotor correspondingly. Through gears and motor control, the two motors rotate at the same speed and synchronously, so that the vacuum dry pump operates stably. However, the design results of the dual-motor, the differences between the two motors, and the rationality of the gear design will all affect the synchronism of the two motors. Without verifying the synchronous performance of the drive motors, the motors cannot be directly assembled on the dual-drive vacuum dry pump and operated. However, the currently common motor test benches cannot meet the synchronous verification of this type of motor. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the present invention provides a shielding motor biaxial synchronism test platform and system for a vacuum dry pump, which can effectively simulate the synchronous state of two motors on a dual-drive vacuum dry pump. After the two motors are synchronized, the pump is assembled.

[0004] A shielding motor biaxial synchronism test platform for a vacuum dry pump includes a torque and speed sensor, a gearbox, and a magnetic powder brake connected in sequence. Two motors to be tested are respectively connected to the two torque and speed sensors. The magnetic powder brake serves as the load end and is used to increase the load according to actual requirements.

[0005] The gears in the gearbox are exactly the same as the gears in the vacuum dry pump to be driven by the motor to be tested.

[0006] The motor to be tested is connected to the torque and speed sensor through a coupling.

[0007] The two speed sensors are connected to the input end of the gearbox through couplings.

[0008] The magnetic powder brake is connected to the output end in the gearbox through a coupling.

[0009] It further includes a fixed support base for installing and fixing the motor to be tested, the torque and speed sensor, and the magnetic powder brake.

[0010] The motor to be tested, the torque and speed sensor, and the magnetic powder brake are fixed on the fixed support base through a support frame.

[0011] A shielding motor biaxial synchronism test platform system for a vacuum dry pump includes the above-mentioned shielding motor biaxial synchronism test platform for a vacuum dry pump and further includes a control system.

[0012] By means of the above technical solution, the invention of the present application has at least the following beneficial effects:

[0013] Through the shielding motor biaxial synchronism test platform for vacuum dry pumps provided by the present invention, the working conditions of the motor on the biaxial pump can be fully simulated, the biaxial synchronism test of the shielding motor for vacuum dry pumps can be completed, and the synchronism and basic performance test of the driving motor of the biaxial pump can be realized. Brief Description of the Drawings

[0014] Figure 1 It is a top view of the sample state of the shielding motor biaxial synchronism test platform for vacuum dry pumps provided by the present invention;

[0015] Wherein:

[0016] 1 - Tested motor I, 2 - Torque and speed sensor, 3 - Gearbox, 4 - Magnetic powder brake, 5 - Tested motor II, 6 - Coupling. Detailed Embodiments

[0017] In order to better explain the present invention for easy understanding, the technical solutions and effects of the present invention will be described in detail below with reference to the drawings through specific embodiments.

[0018] Embodiment 1

[0019] In order to test the synchronism of two motors on the pump while testing the basic parameters such as the torque and speed of the motor, as Figure 1 shown, this embodiment provides a shielding motor biaxial synchronism test platform for vacuum dry pumps, including a fixed support base, and the fixed support base serves as the base of the entire test platform, used for installing test components and playing a role of fixing and supporting.

[0020] The shielding motor biaxial synchronism test platform for vacuum dry pumps provided in this embodiment includes a fixed support base, and the fixed support base is an experimental base platform with a certain height, used for installing and testing test components and parts, playing a role of fixing and supporting the whole device, and providing an operation platform for the test.

[0021] The shielding motor biaxial synchronism test platform for vacuum dry pumps further includes a torque and speed sensor 2, a gearbox 3, and a magnetic powder brake 4 that are connected in sequence. One end of the torque and speed sensor 2 is connected to the output end of the tested motor, and the other end is connected to the input end of the gearbox 3; the gears in the gearbox 3 are exactly the same as the gears used in the vacuum dry pump. The output end of the gearbox 3 is connected to the magnetic powder brake 4, and the magnetic powder brake 4 serves as the load end.

[0022] In this embodiment, the double-axis synchronization test platform for the canned motor of the vacuum dry pump further includes a torque and speed sensor 2, which is fixed on the fixed support base through a support frame. One end of the two torque and speed sensors 2 is connected in parallel to the output ends of the tested motor I 1 and the tested motor II 5 through a coupling 6. The tested motor I 1 and the tested motor II 5 are fixed on the fixed support base through a support frame. The output torque and speed of the tested motor I 1 and the tested motor II 5 are obtained through the torque and speed sensor 2. The other ends of the two speed sensors are connected to the input end of the gearbox 3 through a coupling 6. The gears in the gearbox 3 are exactly the same as the gears in the vacuum dry pump to be driven by the tested motor, so as to achieve the effect of simulating the synchronous working condition on the vacuum dry pump. The output end in the gearbox 3 is connected to the magnetic powder brake 4 through a coupling 6. The magnetic powder brake 4 serves as the load end, and a load is added to the magnetic powder brake 4 to simulate the loaded condition on the pump.

[0023] During use, adjust and align the rotor assembly angles of the tested motor I 1 and the tested motor II 5, and adjust the backlash of the gearbox 3 to a symmetric state. After completion, start the tested motor I 1 and the tested motor II 5, and observe the values fed back by the speed and torque sensor. If the values are within a reasonable range, it can be determined that the motor debugging is reasonable; during the test, the load can be applied through the magnetic powder brake 4, and the load is applied to the two motors of the tested motor I 1 and the tested motor II 5 respectively through the gearbox 3. Subsequently, the motor torque and speed can be adjusted according to the actual test requirements to complete the test.

[0024] Embodiment 2

[0025] This embodiment provides a double-axis synchronization test platform system for the canned motor of the vacuum dry pump, including the double-axis synchronization test platform for the canned motor of the vacuum dry pump described in Embodiment 1, and further includes a control system (not shown in the figure), which is used to receive the data fed back by the speed and torque sensor and provide the start and stop of the tested motor and the loading of the magnetic powder brake 4.

Claims

1. A dual-axis synchronization test platform for a canned motor for a vacuum dry pump, characterized in that: It includes a torque and speed sensor, a gear box and a magnetic powder brake which are connected in sequence. Two motors to be tested are respectively connected to the two torque and speed sensors. The magnetic powder brake serves as a load end and is used to increase the load according to actual needs.

2. A dual-axis synchronization test platform for a canned motor for a vacuum dry pump according to claim 1, characterized in that: The gears in the gear box are exactly the same as the gears used in the vacuum dry pump that the motor under test needs to drive.

3. A dual-axis synchronization test platform for a canned motor for a vacuum dry pump according to claim 1, characterized in that: The motor under test is connected to the torque and speed sensor through a coupling.

4. A dual-axis synchronization test platform for a canned motor for a vacuum dry pump according to claim 1, characterized in that: The two rotation speed sensors are connected to the input end of the gear box through a coupling.

5. A dual-axis synchronization test platform for a canned motor for a vacuum dry pump according to claim 1, characterized in that: The magnetic powder brake is connected to the output end of the gear box through a coupling.

6. A dual-axis synchronization test platform for a canned motor for a vacuum dry pump according to claim 1, characterized in that: It also includes a fixed support base for installing and fixing the motor to be tested, the torque and speed sensor, and the magnetic powder brake.

7. A dual-axis synchronization test platform for a canned motor for a vacuum dry pump according to claim 6, characterized in that: The measured motor, the torque and speed sensor and the magnetic powder brake are fixed on a fixed support base through a support frame.

8. A dual-axis synchronization test platform system for a canned motor for a vacuum dry pump, comprising the dual-axis synchronization test platform for a canned motor for a vacuum dry pump according to claim 1, characterized in that: Also includes a control system.

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