DC motor double-station test bench

Abstract

The utility model relates to the technical field of testboards, and discloses a DC motor double-station testboard, which comprises a base, a horizontal driving mechanism is arranged on one side above the base, a vibration detection piece is arranged at the driving end of the horizontal driving mechanism, two test stations are arranged on one side of the vibration detection piece, and the two test stations are arranged on the other side of the vibration detection piece. Each of the two test stations comprises a test bottom plate, a positioning flange plate is mounted on the test bottom plate, a positioning mold is arranged on the positioning flange plate, a vacuum test device is arranged below the test station, and the test station is communicated with the vacuum test device. According to the motor vibration sensor, the vibration frequency of the motor during operation can be detected, the motor efficiency, the power factor and the like of the motor can be evaluated through the arranged vacuum testing device, and the problem that multiple motors cannot be detected through one vibration sensor in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of test benches, in particular to a double-station test bench for DC motors. Background Art

[0002] Motor amplitude test is an important means to evaluate the running stability and mechanical structure integrity of the motor. This test is usually used to detect the vibration of the motor during operation to ensure that it works within a safe range and avoid equipment damage or failure caused by excessive vibration. Vibration sensors (such as accelerometers) are usually used to measure the vibration of the motor. The vibration sensor can be fixed by sticking or clamping it on the key parts of the motor. According to the instructions of the vibration sensor, it is correctly installed at the specific position of the motor. These positions are usually the motor bearings or parts that are prone to vibration. Let the motor run under the specified working conditions, which can be no-load, load or simulated actual working conditions. Use a vibration analyzer or corresponding test software to collect vibration data in real time. The data may include vibration speed, displacement, acceleration, etc. By analyzing the vibration data, the amplitude value of the motor can be obtained. The amplitude is usually expressed as peak or effective value (RMS). If the amplitude exceeds the standard range, further analysis of the cause is required. It may be due to bearing problems, unbalanced rotors, installation problems or other mechanical failures. Then take corresponding measures, such as adjustment, lubrication, balancing correction, etc., to reduce the vibration to an acceptable level.

[0003] In the prior art, vibration sensors are attached around motors to detect the amplitude of vibration when the motor is working. This may result in a risk of failure due to poor contact or physical damage during use. In addition, one vibration sensor is required for one motor in the prior art, and one vibration sensor cannot be used to detect multiple motors. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and proposes a DC motor double-station test bench.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A DC motor double-station test bench comprises a base, a horizontal driving mechanism is arranged on one side above the base, and a vibration detection element is arranged at a driving end of the horizontal driving mechanism;

[0007] Two test stations are arranged on one side of the vibration detection member, and both of the two test stations include a test base plate, a positioning flange is installed on the test base plate, and a positioning mold is arranged on the positioning flange;

[0008] A vacuum testing device is arranged below the testing station, and the testing station is connected with the vacuum testing device.

[0009] Preferably, the horizontal driving mechanism includes a mounting frame, a slide rail, a slider and a cylinder, the mounting frame is arranged above the base, the slide rail is arranged on one side of the mounting frame, the slider is slidably arranged on the slide rail, the vibration detection component is fixed on the slider, the cylinder is arranged at the other end of the mounting frame, and the driving end of the cylinder is fixedly connected to the vibration detection component.

[0010] Preferably, the vibration detection member comprises two laser sensors, and the two laser sensors are respectively arranged in front of the slider and at the bottom end of the slider.

[0011] Preferably, the vacuum testing device includes a vacuum box, a circular hole, an opening, an orifice plate and a rotary drive mechanism, the vacuum box is arranged in the base, the opening is arranged above the vacuum box, the two test stations are connected inwardly with the vacuum box through the opening, the circular hole is arranged on one side of the vacuum box, a support frame is arranged on the side of the vacuum box close to the circular hole, the orifice plate is rotatably arranged on one side of the circular hole through the support frame, the rotary drive mechanism is arranged on the support frame, the driving end of the rotary drive mechanism is movably connected to the orifice plate, and the orifice plate is circular.

[0012] Preferably, the rotary drive mechanism comprises a rotary motor, a gear and a rack, the rotary motor is arranged on a support frame, the gear is arranged at a driving end of the rotary motor, the rack is arranged on the outer periphery of the orifice plate, and the rack is movably connected to the gear.

[0013] Preferably, an angle sensor is provided on one side of the support frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model, by setting a vibration detection piece and a test station, can install different positioning molds through the positioning mounting flange when in use, so that different motors can be placed, and during detection, by operating the motor, the vibration amplitude of the motor when operating can be detected by the vibration detection piece, and the vibration detection piece can be moved to different positions by the set horizontal driving mechanism, so that the motors on different stations can be detected, so that a vibration detection piece can detect two stations, and the motor efficiency, power factor, etc. of the motor can be evaluated by the set vacuum testing device. Compared with the prior art, the device can detect the vibration frequency of the motor when operating by the set vibration detection piece, and can evaluate the motor efficiency, power factor, etc. of the motor by the set vacuum testing device, thereby solving the problem that a plurality of motors cannot be detected by one vibration sensor in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall schematic diagram of a DC motor double-station test bench proposed by the utility model;

[0017] Figure 2 A schematic diagram of a test station of a DC motor double-station test bench proposed by the utility model;

[0018] Figure 3 A schematic diagram of a mounting frame for a DC motor double-station test bench proposed in the utility model;

[0019] Figure 4 A schematic diagram of a vacuum box of a DC motor double-station test bench proposed by the utility model;

[0020] Figure 5 The utility model is a schematic diagram of a rotary drive mechanism of a DC motor double-station test bench.

[0021] In the figure: 1. base; 2. vibration detection part; 3. test base plate; 4. positioning flange; 5. positioning mold; 6. mounting frame; 7. slide rail; 8. slider; 9. cylinder; 10. vacuum box; 11. round hole; 12. opening; 13. orifice plate; 14. support frame; 15. rotating motor; 16. gear; 17. rack; 18. angle sensor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figures 1 to 5 A DC motor double-station test bench comprises a base 1, a horizontal driving mechanism is arranged on one side above the base 1, and a vibration detection member 2 is arranged at a driving end of the horizontal driving mechanism;

[0024] Two test stations are arranged on one side of the vibration detection member 2, and both of the two test stations include a test base plate 3, a positioning flange 4 is installed on the test base plate 3, and a positioning mold 5 is arranged on the positioning flange 4;

[0025] A vacuum testing device is arranged below the testing station, and the testing station is connected with the vacuum testing device.

[0026] When the device is in use, different positioning molds 5 can be installed through the positioning mounting flange, so that different motors can be placed. During detection, by operating the motor, the vibration amplitude of the motor during operation can be detected through the vibration detection component 2. The vibration detection component 2 can be moved to different positions through the set horizontal driving mechanism, so that the motors on different workstations can be detected. In this way, a vibration detection component 2 can detect two workstations. The motor efficiency, power factor, etc. of the motor can be evaluated through the set vacuum testing device. Compared with the prior art, the device can detect the vibration frequency of the motor during operation through the set vibration detection component 2. The motor efficiency, power factor, etc. of the motor can be evaluated through the set vacuum testing device, which solves the problem in the prior art that multiple motors cannot be detected by one vibration sensor.

[0027] Furthermore, the horizontal driving mechanism includes a mounting frame 6, a slide rail 7, a slider 8 and a cylinder 9. The mounting frame 6 is arranged above the base 1, the slide rail 7 is arranged on one side of the mounting frame 6, the slider 8 is slidably arranged on the slide rail 7, the vibration detection component 2 is fixed on the slider 8, and the cylinder 9 is arranged at the other end of the mounting frame 6. The driving end of the cylinder 9 is fixedly connected to the vibration detection component 2. Through the set cylinder 9, when in use, the slider 8 can be driven to move on the slide rail 7, so that the vibration detection component 2 can be moved to different workstations, so that one vibration detection component 2 can be used to detect the amplitude of motor vibration at multiple workstations.

[0028] Furthermore, the vibration detection component 2 includes two laser sensors, which are respectively arranged in front of the slider 8 and at the bottom of the slider 8. Through the laser sensor arranged in front of the slider 8, the vibration amplitude of the motor can be detected from the top of the motor, and through the laser sensor arranged at the bottom of the slider 8, the amplitude of the side of the motor can be detected, which can make the amplitude detection more accurate.

[0029] Further, the vacuum testing device includes a vacuum box 10, a circular hole 11, an opening 12, an orifice plate 13 and a rotary drive mechanism. The vacuum box 10 is arranged in the base 1, and the opening 12 is arranged above the vacuum box 10. The two test stations are inwardly connected to the vacuum box 10 through the opening 12. The circular hole 11 is arranged on one side of the vacuum box 10. A support frame 14 is arranged on the side of the vacuum box 10 close to the circular hole 11. The orifice plate 13 is rotatably arranged on one side of the circular hole 11 through the support frame 14. The rotary drive mechanism is arranged on the support frame 14. The driving end of the rotary drive mechanism is movably connected to the orifice plate 13. The orifice plate 13 is circular, and a plurality of air inlets of different sizes are arranged on the orifice plate 13. Through the vacuum box 10, vacuum detection of the motor can be performed when in use to evaluate the motor efficiency, power factor, etc. of the motor. Through the rotary drive mechanism, the orifice plate 13 can be driven to rotate, so that different air inlets can be replaced and the vacuum strength is changed, so that the detection can be more accurate.

[0030] Furthermore, the rotary drive mechanism includes a rotary motor 15, a gear 16 and a rack 17. The rotary motor 15 is arranged on the support frame 14, the gear 16 is arranged at the driving end of the rotary motor 15, and the rack 17 is arranged on the outer periphery of the orifice plate 13. The rack 17 is movably connected with the gear 16. By arranging the rotary motor 15, the gear 16 can be driven to rotate. By arranging the rack 17 on the outer periphery of the orifice plate 13, the gear 16 can be meshed with the rack 17. In this way, when the gear 16 rotates, the orifice plate can be driven to rotate to switch different air inlets.

[0031] Furthermore, an angle sensor 18 is provided on one side of the support frame 14. When in use, the air inlet can be changed by rotating the orifice plate 13 by 90 degrees. The angle sensor 18 can detect whether the orifice plate 13 is rotated by 90 degrees.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A DC motor double-station test bench, comprising a base (1), characterized in that: A horizontal driving mechanism is provided on one side above the base (1), and a vibration detection element (2) is provided at a driving end of the horizontal driving mechanism; Two test stations are arranged on one side of the vibration detection element (2), and both of the two test stations include a test base plate (3), a positioning flange (4) is installed on the test base plate (3), and a positioning mold (5) is arranged on the positioning flange (4); A vacuum testing device is arranged below the testing station, and the testing station is connected with the vacuum testing device.

2. A DC motor double-station test bench according to claim 1, characterized in that: The horizontal driving mechanism comprises a mounting frame (6), a slide rail (7), a slider (8) and a cylinder (9); the mounting frame (6) is arranged above the base (1); the slide rail (7) is arranged on one side of the mounting frame (6); the slider (8) is slidably arranged on the slide rail (7); the vibration detection component (2) is fixed on the slider (8); the cylinder (9) is arranged at the other end of the mounting frame (6); and the driving end of the cylinder (9) is fixedly connected to the vibration detection component (2).

3. A DC motor double-station test bench according to claim 1, characterized in that: The vibration detection element (2) comprises two laser sensors, which are respectively arranged in front of the slider (8) and at the bottom end of the slider (8).

4. A DC motor double-station test bench according to claim 1, characterized in that: The vacuum testing device comprises a vacuum box (10), a circular hole (11), an opening (12), an orifice plate (13) and a rotary drive mechanism. The vacuum box (10) is arranged in a base (1), the opening (12) is arranged above the vacuum box (10), the two test stations are inwardly connected to the vacuum box (10) through the opening (12), the circular hole (11) is arranged on one side of the vacuum box (10), a support frame (14) is arranged on a side of the vacuum box (10) close to the circular hole (11), the orifice plate (13) is rotatably arranged on one side of the circular hole (11) through the support frame (14), the rotary drive mechanism is arranged on the support frame (14), the driving end of the rotary drive mechanism is movably connected to the orifice plate (13), and the orifice plate (13) is circular.

5. A DC motor double-station test bench according to claim 4, characterized in that: The rotary drive mechanism comprises a rotary motor (15), a gear (16) and a rack (17); the rotary motor (15) is arranged on a support frame (14); the gear (16) is arranged at a driving end of the rotary motor (15); the rack (17) is arranged on the outer periphery of the orifice plate (13); and the rack (17) is movably connected to the gear (16).

6. A DC motor double-station test bench according to claim 4, characterized in that: An angle sensor (18) is provided on one side of the support frame (14).

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