Axial flow fan bearing box bearing test device with adjustable stationary blades

Abstract

The utility model discloses a static blade adjustable axial flow fan bearing box bearing test device, which relates to the field of mechanical operation test, and comprises a test platform, a motor and a bearing box group, the motor and the bearing box group are fixedly arranged at the top of the test platform, and a bearing box main shaft extending outwards is arranged in the bearing box group. A transmission shaft is fixedly arranged at one end of the bearing box spindle and fixedly connected with an output shaft of the motor. A vibration measuring probe and a thermometer are fixedly mounted on the side wall of the bearing box group; the top of the test platform is fixedly provided with an axial bearing seat, the transmission shaft is rotatably arranged in the axial bearing seat in a penetrating manner, the side wall of the axial bearing seat is fixedly provided with an axial pressure gauge, the side wall of the bearing box group is provided with a radial bearing seat, and a radial pressure gauge is fixedly arranged between the bearing box group and the radial bearing seat. According to the utility model, the bearing capacity of the bearing box group can be quickly detected, the measurement accuracy is high, and the test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical operation test field, concretely relates to a static vane adjustable axial flow fan bearing box bearing test device. BACKGROUND

[0002] The static vane adjustable axial flow fan is a large industrial axial flow fan, and the bearing box group bears heavy load, which is divided into axial load and radial load. The axial load is above 10kN, and the radial load is above 40kN. Therefore, it is particularly important to test the bearing capacity of the bearing box group before the bearing box group is installed. The bearing capacity of the bearing box group is detected, but the existing bearing test device has the defects of low test efficiency and low test precision. Therefore, a static vane adjustable axial flow fan bearing box bearing test device is proposed. SUMMARY

[0003] In view of the problems existing in the prior art, the utility model is proposed.

[0004] Therefore, the utility model aims at providing a static vane adjustable axial flow fan bearing box bearing test device, which solves the problems in the background art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A static vane adjustable axial flow fan bearing box bearing test device, comprising a test platform, a motor and a bearing box group, the motor and the bearing box group are both fixedly installed on the top of the test platform, the inside of the bearing box group is provided with a bearing box main shaft extending outward, one end of the bearing box main shaft is fixedly provided with a transmission shaft, and the output shaft of the motor is fixedly connected with the transmission shaft; a vibration probe and a thermometer are fixedly installed on the side wall of the bearing box group; an axial bearing seat is fixedly arranged on the top of the test platform, the transmission shaft rotates through the inside of the axial bearing seat, an axial pressure gauge is fixedly installed on the side wall of the axial bearing seat, a radial bearing seat is arranged on the side wall of the bearing box group, a radial pressure gauge is fixedly installed between the bearing box group and the radial bearing seat, and vibration measuring instruments, temperature measuring instruments, axial pressure gauge instruments and radial pressure gauge instruments electrically connected with the vibration probe, the thermometer, the axial pressure gauge and the radial pressure gauge are fixedly installed on the side wall of the test platform.

[0007] Preferably, the top of the test platform is fixedly provided with a bearing box mounting seat, and the bearing box group is fixedly installed on the bearing box mounting seat through first bolts.

[0008] Preferably, the test motor, the axial bearing seat and the bearing box mounting seat are installed on the test platform through second bolts, third bolts and fourth bolts respectively.

[0009] Preferably, the transmission shaft is fixedly connected with the bearing box main shaft through the fifth bolt, and the output shaft of the motor is fixedly connected with the transmission shaft through the shaft coupling.

[0010] Further, one side of the radial bearing seat is provided with a radial bearing cover, and the inside of the radial bearing seat is provided with a cylindrical roller bearing, and the radial bearing seat, the radial bearing cover and the cylindrical roller bearing are fixedly installed on the bearing box main shaft through the sixth bolt after being assembled.

[0011] Preferably, one side of the axial bearing seat is provided with an axial bearing cover, and the inside of the axial bearing seat is provided with a thrust ball bearing, and the axial bearing seat, the axial bearing cover and the thrust ball bearing are fixedly installed on the axial bearing seat after being assembled.

[0012] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0013] The axial pressure gauge, the radial pressure gauge, the vibration measuring instrument and the temperature measuring instrument are arranged, the nut on the axial pressure gauge is rotated, the axial load applied to the transmission shaft can be adjusted, the nut on the radial pressure gauge is rotated, the radial load applied to the bearing box main shaft can be adjusted, the test motor is started after the load value is adjusted, the motor can drive the transmission shaft to rotate, the transmission shaft can drive the bearing box main shaft to rotate, the vibration probe and the thermometer can measure the vibration frequency and the temperature of the bearing box group respectively, the values of the temperature measuring instrument and the vibration measuring instrument are recorded in different time periods, the bearing capacity of the bearing box group is tested, the measurement precision is high, and the test efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] Figure 2 It is a structural schematic view of the utility model; Figure 1 It is an enlarged schematic view of A part of the utility model.

[0017] MARKS OF THE DRAWINGS:

[0018] 1, test platform; 2, motor; 3, bearing box group; 4, bearing box main shaft; 5, transmission shaft; 6, radial bearing seat; 7, vibration measuring probe; 8, thermometer; 9, axial bearing seat; 10, axial pressure gauge; 11, radial pressure gauge; 12, vibration measuring instrument; 13, temperature measuring instrument; 14, axial pressure gauge instrument; 15, radial pressure gauge instrument; 16, bearing box mounting seat; 17, first bolt; 18, second bolt; 19, third bolt; 20, fourth bolt; 21, fifth bolt; 22, radial bearing cover; 23, cylindrical roller bearing; 24, sixth bolt; 25, axial bearing cover; 26, thrust ball bearing; 27, seventh bolt; 28, shaft coupling. DETAILED DESCRIPTION

[0019] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.

[0020] The utility model discloses a vane adjustable axial flow fan bearing box bearing test device.

[0021] The utility model provides a kind of vane adjustable axial flow fan bearing box bearing test device as shown in Figures 1-2 The utility model discloses a vane adjustable axial flow fan bearing box bearing test device, including test platform 1, motor 2 and bearing box group 3, motor 2 and bearing box group 3 are fixedly installed on the top of test platform 1, the inside of bearing box group 3 is provided with the bearing box main shaft 4 extending outward, the one end of bearing box main shaft 4 is fixedly provided with transmission shaft 5, the output shaft of motor 2 is fixedly connected with transmission shaft 5, transmission shaft 5 and bearing box main shaft 4 are fixedly connected by fifth bolt 21, the output shaft of motor 1 and transmission shaft 5 are fixedly connected by shaft coupling 28, so that motor 1 can drive transmission shaft 5 and bearing box main shaft 4 steady transmission;The side wall of bearing box group 3 is fixedly installed with vibration measuring probe 7 and thermometer 8;The top of test platform 1 is fixedly provided with axial bearing seat 9, transmission shaft 5 rotates and passes through the inside provided in axial bearing seat 9, the side wall of axial bearing seat 9 is fixedly installed with axial pressure gauge 10, the side wall of bearing box group 3 is provided with radial bearing seat 6, bearing box group 3 and radial bearing seat 6 are fixedly installed with radial pressure gauge 11, the side wall of test platform 1 is fixedly installed with vibration measuring instrument 12, temperature measuring instrument 13, axial pressure gauge instrument 14 and radial pressure gauge instrument 15 that vibration measuring probe 7, thermometer 8, axial pressure gauge 10 and radial pressure gauge 11 are electrically connected.

[0022] When in use, the artificial hand rotates the nut on the axial pressure gauge 10 to adjust the axial load applied to the transmission shaft 5, and rotates the nut on the radial pressure gauge 11 to adjust the radial load applied to the bearing box main shaft 4, after adjusting the load value, the test motor 1 is started, the motor 1 can drive the transmission shaft 5 to rotate, the transmission shaft 5 can drive the bearing box main shaft 4 to rotate, at this time, the vibration frequency and temperature of the bearing box group 3 can be measured by the vibration probe 7 and the thermometer 8 respectively, and the values of the temperature measuring instrument 13 and the vibration measuring instrument 12 are recorded in different time periods, the bearing capacity of the bearing box group 3 is tested, and the measurement accuracy is high, and the test efficiency is improved.

[0023] As shown in Figure 1 The top of the test platform 1 is fixedly provided with a bearing box mounting seat 16, the bearing box group 3 is fixedly installed on the bearing box mounting seat 16 through a first bolt 17, and the test motor 1, the axial bearing seat 9 and the bearing box mounting seat 3 are installed on the test platform 1 through a second bolt 18, a third bolt 19 and a fourth bolt 20 respectively.

[0024] As shown in Figure 1 The side of the radial bearing seat 6 is provided with a radial bearing cover 22, and the inside of the radial bearing seat 6 is provided with a cylindrical roller bearing 23, and the radial bearing seat 6, the radial bearing cover 22 and the cylindrical roller bearing 23 are fixedly installed on the bearing box main shaft 10 through a sixth bolt 24 after being assembled.

[0025] As shown in Figure 1 The side of the axial bearing seat 9 is provided with an axial bearing cover 25, and the inside of the axial bearing seat 9 is provided with a thrust ball bearing 26, and the axial bearing seat 9, the axial bearing cover 25 and the thrust ball bearing 26 are fixedly installed on the axial bearing seat 9 through a seventh bolt 27 after being assembled.

[0026] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the present application.

Claims

1. A bearing box load test device for an axial flow fan with adjustable stator blades, comprising a test platform (1), a motor (2) and a bearing box assembly (3), characterized in that: The motor (2) and the bearing box assembly (3) are both fixedly mounted on the top of the test platform (1); an outwardly extending bearing box main shaft (4) is provided inside the bearing box assembly (3); a transmission shaft (5) is fixedly provided at one end of the bearing box main shaft (4); and the output shaft of the motor (2) is fixedly connected to the transmission shaft (5); A vibration probe (7) and a thermometer (8) are fixedly mounted on the side wall of the bearing box group (3); an axial bearing seat (9) is fixedly mounted on the top of the test platform (1); the transmission shaft (5) rotates and passes through the interior of the axial bearing seat (9); an axial pressure gauge (10) is fixedly mounted on the side wall of the axial bearing seat (9); a radial bearing seat (6) is provided on the side wall of the bearing box group (3); a radial pressure gauge (11) is fixedly mounted between the bearing box group (3) and the radial bearing seat (6); and a vibration meter (12), a temperature meter (13), an axial pressure gauge (14) and a radial pressure gauge (15) electrically connected to the vibration probe (7), the thermometer (8), the axial pressure gauge (10) and the radial pressure gauge (11) are fixedly mounted on the side wall of the test platform (1).

2. The bearing box load test device for an axial flow fan with adjustable stator blades according to claim 1 is characterized in that: A bearing box mounting seat (16) is fixedly provided on the top of the test platform (1), and the bearing box assembly (3) is fixedly mounted on the bearing box mounting seat (16) via a first bolt (17).

3. The stator blade adjustable axial flow fan bearing box load test device according to claim 2, characterized in that: The motor (2), the axial bearing seat (9) and the bearing box mounting seat (16) are respectively mounted on the test platform (1) via a second bolt (18), a third bolt (19) and a fourth bolt (20).

4. The stator blade adjustable axial flow fan bearing box load test device according to claim 1, characterized in that: The transmission shaft (5) and the bearing box main shaft (4) are fixedly connected via a fifth bolt (21), and the output shaft of the motor (2) and the transmission shaft (5) are fixedly connected via a coupling (28).

5. The stator blade adjustable axial flow fan bearing box load testing device according to claim 1, characterized in that: A radial bearing cover (22) is provided on one side of the radial bearing seat (6), and a cylindrical roller bearing (23) is provided inside the radial bearing seat (6). The radial bearing seat (6), the radial bearing cover (22) and the cylindrical roller bearing (23) are assembled and fixedly mounted on the bearing box main shaft (4) by a sixth bolt (24).

6. The stator blade adjustable axial flow fan bearing box load testing device according to claim 1, characterized in that: An axial bearing cover (25) is provided on one side of the axial bearing seat (9), and a thrust ball bearing (26) is provided inside the axial bearing seat (9). After the axial bearing seat (9), the axial bearing cover (25) and the thrust ball bearing (26) are assembled, they are fixedly mounted on the axial bearing seat (9) by a seventh bolt (27).

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