Heavy-load roller bearing capacity testing device special for subway

Abstract

The utility model relates to the field of roller testing, in particular to a heavy-load roller bearing capacity testing device special for a subway. The utility model provides a special heavy-load roller bearing capacity testing device for a subway, which can simulate different environment temperatures. A heavy-load roller bearing capacity testing device special for a subway comprises a motor, a machine base, a supporting frame, a rotating shaft and the like, the upper side of the right portion of the supporting frame is connected with the machine base, the upper side of the machine base is connected with the motor, an output shaft of the motor is connected with a connecting shaft, the left side of the connecting shaft is connected with a connecting block, and the left side of the connecting block is connected with the rotating shaft. According to different environments needing to be simulated, the heating plate can be started to heat the test environment, so that the hot environment is simulated, the pressure resistance of the heavy-load roller at different temperatures is tested, meanwhile, the air blower can be started to perform air blowing operation, the internal environment is uniformly heated, and the detection accuracy is prevented from being influenced.

Description

Technical Field

[0001] This utility model relates to the field of roller testing, and in particular to a test device for the load-bearing capacity of heavy-duty rollers used in subways. Background Technology

[0002] In linear motion, rollers play a crucial role, offering high precision, wear resistance, and requiring less power. During subway vehicle operation, the rollers bear enormous loads; therefore, to ensure the safety and reliability of subway vehicles, the load-bearing capacity of the rollers must be rigorously tested.

[0003] Current roller load-bearing capacity testing devices involve mounting the roller on a suitable fixed device, slowly and gradually applying the load, and finally recording the corresponding load values ​​and roller deformation. However, current testing methods for heavy-duty roller loads are relatively limited, generally conducted under the same working environment. But the working environments for heavy-duty rollers vary greatly; temperature and humidity significantly affect the load. Failure to select a suitable heavy-duty roller for the appropriate load capacity can lead to unimaginable consequences.

[0004] Therefore, it is necessary to design a heavy-duty roller load testing device specifically for subways that can simulate different ambient temperatures. Utility Model Content

[0005] To overcome the shortcomings of current heavy-duty roller load testing, which is relatively simple and is basically conducted in the same working environment, the technical problem to be solved is to provide a subway-specific heavy-duty roller load-bearing capacity testing device that can simulate different ambient temperatures.

[0006] The technical solution of this utility model is: a heavy-duty roller bearing capacity testing device for subways, comprising a motor, a base, a support frame, a rotating shaft, a connecting shaft, a connecting block, a hydraulic rod, a pressure block, a displacement sensor, a heating plate, and a blower. The base is connected to the upper right side of the support frame, and the motor is connected to the upper side of the base. The output shaft of the motor is connected to the connecting shaft, and the connecting block is connected to the left side of the connecting shaft. The rotating shaft is used to fix and drive the test roller to rotate for testing. A hydraulic rod is connected to the upper middle part of the support frame, and a pressure block is connected to the telescopic end of the hydraulic rod. A heating plate is connected to the upper inner wall of the support frame, and a blower is connected to the upper inner wall of the support frame. The blower is located above the heating plate. Two displacement sensors are connected to the front and rear sides of the inner wall of the support frame.

[0007] In one embodiment, a pull-out door is also included, with the pull-out door slidably connected to the left side of the support frame.

[0008] In one embodiment, a fixing frame is also included, with two fixing frames connected to the upper inner wall of the support frame. The fixing frames are used to limit the movement of the test roller.

[0009] In one embodiment, the support wheels are also included. Two support wheels are rotatably connected to the left and right sides of the lower part of the support frame. The support wheels are used to support the rollers used for testing.

[0010] In one embodiment, the pressure block is further provided with a plurality of ball bearings rotatably connected to its underside.

[0011] In one embodiment, a humidifier is also included, located on the upper rear side of the heating plate.

[0012] The beneficial effects are: 1. This utility model can start the heating plate to heat the test environment according to the different environments to be simulated, thereby simulating a hot environment and testing the compressive strength of heavy-load rollers at different temperatures. At the same time, the blower can be turned on to blow air, so that the internal environment is heated evenly and avoids affecting the accuracy of the test.

[0013] 2. This utility model can also simulate the heavy-load roller compression resistance test under humid conditions. By turning on the humidifier, the test environment is humidified, thereby conducting heavy-load roller compression resistance tests under different humidity levels.

[0014] 3. In the process of testing the load-bearing capacity of the roller, the displacement sensor can detect the displacement deformation state of the roller, and thus record the displacement deformation data of the roller according to different environmental conditions and load conditions. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a cross-sectional view of the main body of this utility model and a three-dimensional structural schematic diagram.

[0017] Figure 3 This is a three-dimensional structural diagram of the connecting block and connecting shaft of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the pressure block and ball bearings of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the fan and humidifier of this utility model.

[0020] In the attached diagram, the following are the reference numerals: 1-motor, 2-base, 3-support frame, 4-extension door, 5-rotating shaft, 6-connecting shaft, 7-connecting block, 8-fixed frame, 9-support wheel, 10-hydraulic rod, 11-ball bearing, 12-pressure block, 13-displacement sensor, 14-blower, 15-heating plate, 16-humidifier. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0022] A test device for the load-bearing capacity of heavy-duty rollers used in subways, such as Figures 1-5 As shown, the device includes a motor 1, a base 2, a support frame 3, a stretching gate 4, a rotating shaft 5, a connecting shaft 6, a connecting block 7, a fixing frame 8, support wheels 9, a hydraulic rod 10, ball bearings 11, a pressure block 12, a displacement sensor 13, a blower 14, a heating plate 15, and a humidifier 16. The base 2 is connected to the upper right side of the support frame 3, and the motor 1 is connected to the upper side of the base 2. The stretching gate 4 is slidably connected to the left side of the support frame 3. The output shaft of the motor 1 is connected to the connecting shaft 6, and the connecting block 7 is connected to the left side of the connecting shaft 6. The rotating shaft 5 is connected to the left side of the connecting block 7. The rotating shaft 5 is used to fix and drive the test rollers for rotation testing. The upper inner wall of the support frame 3 is connected to the left and right... Two fixed frames 8 are used to limit the test rollers. The support frame 3 has two front and rear support wheels 9 rotatably connected to the lower left and right sides. The support wheels 9 support the test rollers. A hydraulic rod 10 is connected to the upper middle part of the support frame 3. Multiple balls 11 are rotatably connected to the lower side of the pressure block 12. The pressure block 12 is connected to the telescopic end of the hydraulic rod 10. A heating plate 15 is connected to the upper inner wall of the support frame 3. A blower 14 is connected to the upper inner wall of the support frame 3. The blower 14 is located above the heating plate 15. Two displacement sensors 13 are connected to the front and rear sides of the inner wall of the support frame 3. A humidifier 16 is located on the upper rear part of the heating plate 15.

[0023] First, the tension gate 4 is moved open, and the two heavy-duty rollers to be tested are inserted into the rotating shaft 5 and placed on the two sets of support wheels 9 respectively. Then, the two rollers are limited by the fixing frame 8. After that, the tension gate 4 is closed, the motor 1 switch and the displacement sensor 13 switch are turned on, and then the hydraulic rod 10 is activated to move the pressure block 12 downward to apply pressure, thereby applying a load to the rollers. Then, depending on the different environments to be simulated, the heating plate 15 is activated to heat the test environment, thereby simulating a hot environment, and thus testing the compressive strength of the heavy-duty rollers at different temperatures. At the same time, the heating plate 15 can also be turned on. Blower 14 blows air to ensure uniform heating of the internal environment, preventing any impact on the accuracy of the test. It also simulates the heavy-duty roller compressive strength test under humid conditions. By activating humidifier 16, the test environment is humidified, allowing for testing of the heavy-duty roller compressive strength under different humidity levels. During the load-bearing capacity test of the roller, displacement sensor 13 detects the roller's displacement deformation, recording the displacement deformation data according to different environmental conditions and loads. The fixing frame 8 prevents the shaft 5 from breaking and the heavy-duty roller from falling.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A test device for the load-bearing capacity of heavy-duty rollers used in subways, characterized in that: The system includes a motor (1), a base (2), a support frame (3), a rotating shaft (5), a connecting shaft (6), a connecting block (7), a hydraulic rod (10), a pressure block (12), a displacement sensor (13), a heating plate (15), and a blower (14). The upper right side of the support frame (3) is connected to the base (2). The upper side of the base (2) is connected to the motor (1). The output shaft of the motor (1) is connected to the connecting shaft (6). The left side of the connecting shaft (6) is connected to the connecting block (7). The left side of the connecting block (7) is connected to... There is a rotating shaft (5), which is used to fix and drive the test roller to perform rotation test. A hydraulic rod (10) is connected to the upper middle part of the support frame (3). A pressure block (12) is connected to the telescopic end of the hydraulic rod (10). A heating plate (15) is connected to the upper inner wall of the support frame (3). A blower (14) is connected to the upper inner wall of the support frame (3). The blower (14) is located on the upper side of the heating plate (15). Two displacement sensors (13) are connected to the front and rear sides of the inner wall of the support frame (3).

2. The heavy-duty roller bearing capacity testing device for subways as described in claim 1, characterized in that: It also includes a pull-out door (4), and the support frame (3) is slidably connected to the pull-out door (4) on the left side.

3. The heavy-duty roller bearing capacity testing device for subways as described in claim 2, characterized in that: It also includes a fixing frame (8), and the upper inner wall of the support frame (3) is connected to two fixing frames (8) on the left and right sides. The fixing frame (8) is used to limit the test roller.

4. The heavy-duty roller bearing capacity testing device for subways as described in claim 3, characterized in that: It also includes support wheels (9). The lower left and right sides of the support frame (3) are rotatably connected to two front and rear support wheels (9). The support wheels (9) are used to support the rollers for testing.

5. The heavy-duty roller bearing capacity testing device for subways as described in claim 4, characterized in that: It also includes ball bearings (11), and multiple ball bearings (11) are rotatably connected to the lower side of the pressure block (12).

6. The heavy-duty roller bearing capacity testing device for subways as described in claim 5, characterized in that: It also includes a humidifier (16), which is located on the upper rear side of the heating plate (15).

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