A kind of air conditioner compressor bearing stability testing device

Abstract

The utility model relates to bearing stability test technical field especially relates to a kind of air conditioner compressor bearing stability testing device.The utility model provides a kind of air conditioner compressor bearing stability testing device, which can monitor the relative displacement of bearing inner and outer rings in real time during operation and improve the accuracy of testing.The air conditioner compressor bearing stability testing device includes a base and clamping blocks, and the clamping blocks are slidably connected to the upper sides of the left and right parts of the base.The utility model starts the electric push rod to make the pressing plate separate from the bearing outer ring, then rotates the bearing inner and outer rings, judges the bearing inner ring speed by motor speed, and the speed sensor is used to detect the bearing outer ring speed.Comparing the speeds of the bearing inner and outer rings can determine whether relative sliding occurs between the inner and outer rings, achieving the effect of monitoring the relative displacement of bearing inner and outer rings in real time during operation and improving the accuracy of testing.

Description

Technical Field

[0001] This utility model relates to the field of bearing stability testing technology, and in particular to a bearing stability testing device for an air conditioning compressor. Background Technology

[0002] The air conditioning compressor is the "heart" of the air conditioning system. Its core component, the main shaft bearing, is subjected to high-speed, high-temperature, and variable-load conditions for a long time, which makes it prone to failure. In order to ensure the stability of the bearing, it is necessary to test it.

[0003] For example, an aviation rolling bearing thermal stability testing device, authorized by announcement number CN107367388B, includes a computer system, a working platform, and a drive system, a testing system, and a loading system mounted on the working platform. The testing system includes a test housing, within which a high-speed test spindle is mounted via a supporting bearing assembly, and the bearing under test is mounted on the high-speed test spindle. Temperature sensors are installed at the inner ring, outer ring, and rolling element positions of the bearing under test. The output end of the high-speed electric spindle of the drive system is connected to the high-speed test spindle via a coupling. The loading system includes a radial loading mechanism and a bearing loading body. This device obtains a relatively comprehensive temperature field distribution law of aviation rolling bearings by arranging temperature sensors on the inner ring, outer ring, and rolling elements of the test bearing. It can effectively determine and obtain the key influencing mechanisms of thermal instability of aviation rolling bearings and their suppression methods, thereby improving the performance and life of rolling bearings. However, because this bearing thermal stability testing device only focuses on macroscopic parameters such as vibration, temperature, and noise, it cannot directly and in real time determine whether "ring slippage" (relative sliding between the inner and outer rings) has occurred, affecting the accuracy of the test.

[0004] Therefore, a bearing stability testing device for air conditioning compressors has been developed that can monitor the relative displacement of the inner and outer rings of the bearing in real time during operation, thereby improving the accuracy of the test. Utility Model Content

[0005] To overcome the shortcomings of existing bearing thermal stability testing devices that only focus on macroscopic parameters such as vibration, temperature, and noise, and cannot directly and in real time determine whether "runaway" (relative sliding between the inner ring and the main shaft) has occurred, thus affecting the accuracy of the test, this utility model provides an air conditioning compressor bearing stability testing device that can monitor the relative displacement of the inner and outer rings of the bearing in real time during operation, thereby improving the accuracy of the test.

[0006] The technical solution of this utility model is: an air conditioner compressor bearing stability testing device, comprising a base, clamping blocks, a temperature sensor, a speed sensor, a vibration sensor, a bidirectional lead screw, a knob, a guide rod, an electric push rod, a pressure plate, and a rotating assembly. Clamping blocks are slidably connected to the upper sides of both the left and right sides of the base. A temperature sensor is connected to the lower right side of the left clamping block, a speed sensor is connected to the upper right side of the left clamping block, and a vibration sensor is connected to the upper left side of the left clamping block. A bidirectional lead screw is rotatably connected to the upper front side of the base, and the clamping blocks are threadedly connected to the bidirectional lead screw. A knob is connected to the right side of the bidirectional lead screw. A guide rod is connected to the upper rear side of the base, and the clamping blocks are slidably connected to the guide rod. An electric push rod is connected to the right clamping block, and a pressure plate is connected to the telescopic end of the electric push rod. A rotating assembly capable of controlling the rotation of the bearing spindle is provided on the base.

[0007] Furthermore, the knob has anti-slip texture.

[0008] Furthermore, it also includes rolling balls, with multiple rolling balls rotatably connected to each clamp block.

[0009] Furthermore, the rotating assembly includes a support frame, an electric telescopic rod, a connecting block, a motor, and a pressure plate. The support frame is connected to the upper rear side of the base and is located behind the guide rod. The electric telescopic rod is connected to the upper side of the support frame. The connecting block is connected to the telescopic end of the electric telescopic rod. The motor is connected inside the connecting block. The pressure plate is connected to the output shaft of the motor. Multiple temperature sensors are also connected to the pressure plate.

[0010] Furthermore, the connecting block has ventilation holes.

[0011] Furthermore, the pressure plate has a stepped structure.

[0012] Furthermore, the temperature sensor, speed sensor, vibration sensor, electric telescopic rod, motor, electric actuator, and processor are electrically connected through the control module.

[0013] The beneficial effects are as follows: This utility model uses an electric actuator to detach the pressure plate from the outer ring of the bearing, and then rotates the inner and outer rings of the bearing. The speed of the inner ring is determined by the motor speed, and the speed sensor is used to detect the speed of the outer ring. By comparing the speeds of the inner and outer rings, it can be determined whether there is relative slippage between the inner and outer rings. This achieves the effect of real-time monitoring of the relative displacement of the inner and outer rings of the bearing during operation, thus improving the accuracy of the test. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 3This is a three-dimensional structural diagram of the clamping block and other components of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the motor and other components of this utility model.

[0018] In the attached diagram, the following are the reference numerals: 1-base, 2-clamping block, 3-ball, 4-temperature sensor, 5-speed sensor, 6-vibration sensor, 7-two-way lead screw, 8-knob, 9-guide rod, 10-support frame, 11-electric telescopic rod, 12-connecting block, 13-motor, 14-pressure plate, 15-electric push rod, 16-pressure plate. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0020] An air conditioner compressor bearing stability testing device, such as Figures 1-4 As shown, the system includes a base 1, clamping blocks 2, ball bearings 3, a temperature sensor 4, a speed sensor 5, a vibration sensor 6, a bidirectional lead screw 7, a knob 8, a guide rod 9, an electric actuator 15, a pressure plate 16, and a rotating assembly. Clamping blocks 2 are slidably connected to the upper sides of both the left and right sides of the base 1. Multiple ball bearings 3 are rotatably connected to each clamping block 2. A temperature sensor 4 is connected to the lower right side of the left clamping block 2, a speed sensor 5 is connected to the upper right side of the left clamping block 2, and a vibration sensor 6 is connected to the upper left side of the left clamping block 2. A bidirectional lead screw 7 is rotatably connected to the upper front of the base 1, and the clamping blocks 2 are threadedly connected to the bidirectional lead screw 7. A knob 8 is connected to the right side of the bidirectional lead screw 7, and the knob 8 has anti-slip textures for easy gripping. A guide rod 9 is connected to the upper rear of the base 1, and the clamping blocks 2 are slidably connected to the guide rod 9. An electric actuator 15 is connected to the right clamping block 2, and a pressure plate 16 is connected to the telescopic end of the electric actuator 15. A rotating assembly is provided on the base 1.

[0021] like Figures 1-4 As shown, the rotating assembly includes a support frame 10, an electric telescopic rod 11, a connecting block 12, a motor 13, and a pressure plate 14. The support frame 10 is connected to the upper rear side of the base 1. The support frame 10 is located behind the guide rod 9. The electric telescopic rod 11 is connected to the upper side of the support frame 10. The connecting block 12 is connected to the telescopic end of the electric telescopic rod 11. The motor 13 is connected inside the connecting block 12. The connecting block 12 has ventilation holes for heat dissipation of the motor 13. The pressure plate 14 is connected to the output shaft of the motor 13. Three temperature sensors 4 are also connected to the pressure plate 14. The pressure plate 14 has a stepped structure to accommodate different types of bearings. The temperature sensors 4, speed sensors 5, vibration sensors 6, electric telescopic rod 11, motor 13, electric push rod 15, and processor are electrically connected through a control module.

[0022] When using this utility model, first place the base 1 in the air conditioner compressor bearing stability test area, then place the air conditioner compressor bearing between the clamping blocks 2, and then rotate the bidirectional lead screw 7 by the knob 8 to make the clamping blocks 2 move closer to each other along the guide rod 9 to clamp the bearing, and the ball 3 contacts the outer ring of the bearing. Then start the electric push rod 15 to push the pressure plate 16 to move downward to press the outer ring of the bearing, and then start the electric telescopic rod 11 to push the connecting block 12 to move downward so that the pressure plate 14 presses the inner ring of the bearing. The processor starts the motor 13 through the control module to drive the pressure plate 14 to rotate, so that the inner ring of the bearing rotates. The temperature sensor 4 detects the temperature of the inner and outer rings of the bearing to monitor the bearing status and avoid the test results being affected by the status error. When the bearing vibrates, the vibration is transmitted to the clamping block 2, and the vibration sensor 6 detects the vibration amplitude to determine the stability of the bearing. When it is necessary to detect whether there is relative slippage between the inner and outer rings of the bearing, the electric actuator 15 is activated to disengage the pressure plate 16 from the outer ring of the bearing. Then, the inner and outer rings of the bearing are rotated. The rotation speed of the inner ring is determined by the rotation speed of the motor 13, and the rotation speed sensor 5 is used to detect the rotation speed of the outer ring of the bearing. By comparing the rotation speeds of the inner and outer rings, it can be determined whether there is relative slippage between the inner and outer rings. This allows for real-time monitoring of the relative displacement between the inner and outer rings of the bearing during operation, improving the accuracy of the test.

[0023] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A device for testing the stability of an air conditioner compressor bearing, characterized in that: The system includes a base (1), clamping blocks (2), a temperature sensor (4), a speed sensor (5), a vibration sensor (6), a two-way lead screw (7), a knob (8), a guide rod (9), an electric actuator (15), a pressure plate (16), and a rotating assembly. Clamping blocks (2) are slidably connected to the upper sides of both the left and right sides of the base (1). A temperature sensor (4) is connected to the lower right side of the left clamping block (2), a speed sensor (5) is connected to the upper right side of the left clamping block (2), and a vibration sensor (6) is connected to the upper left side of the left clamping block (2). The motion sensor (6) is connected to the upper front of the base (1) by a two-way lead screw (7). The clamping blocks (2) are all threadedly connected to the two-way lead screw (7). A knob (8) is connected to the right side of the two-way lead screw (7). A guide rod (9) is connected to the upper rear of the base (1). The clamping blocks (2) are all slidably connected to the guide rod (9). An electric push rod (15) is connected to the clamping block (2) on the right side. A pressure plate (16) is connected to the telescopic end of the electric push rod (15). A rotating component that can control the rotation of the bearing spindle is provided on the base (1).

2. The air conditioner compressor bearing stability testing device as described in claim 1, characterized in that: The knob (8) has anti-slip texture.

3. The air conditioner compressor bearing stability testing device as described in claim 1, characterized in that: It also includes rolling balls (3), and multiple rolling balls (3) are rotatably connected to the clamping block (2).

4. The air conditioner compressor bearing stability testing device as described in claim 1, characterized in that: The rotating assembly includes a support frame (10), an electric telescopic rod (11), a connecting block (12), a motor (13), and a pressure plate (14). The support frame (10) is connected to the upper rear side of the base (1). The support frame (10) is located behind the guide rod (9). The electric telescopic rod (11) is connected to the upper side of the support frame (10). The connecting block (12) is connected to the telescopic end of the electric telescopic rod (11). The motor (13) is connected inside the connecting block (12). The pressure plate (14) is connected to the output shaft of the motor (13). Multiple temperature sensors (4) are also connected to the pressure plate (14).

5. The air conditioner compressor bearing stability testing device as described in claim 4, characterized in that: The connecting block (12) has ventilation holes.

6. The air conditioner compressor bearing stability testing device as described in claim 4, characterized in that: The pressure plate (14) has a stepped structure.

7. The air conditioner compressor bearing stability testing device as described in claim 4, characterized in that: Temperature sensor (4), speed sensor (5), vibration sensor (6), electric telescopic rod (11), motor (13), electric push rod (15) and processor are electrically connected through control module.

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