Bench testing machine for bearing sealing ring

Abstract

The invention discloses a bearing sealing ring bench testing machine which comprises a base, a turnover main machine, a hydraulic pump station and an electric control cabinet. The base is used for fixing and supporting the host; a fixing disc, a gear motor, a rotating ring, a fixing ring and a sealing ring fixing device are arranged on the turnover main machine; the hydraulic pump station is used for providing a pressure source for the testing machine; the electrical control cabinet is used for control operation of the testing machine; the fixing disc and the base are connected in a turnover mode, a gear motor is installed on the back face of the fixing disc, a rotating ring is installed on the front face of the fixing disc and driven by the gear motor, a fixing ring is arranged on the periphery of the rotating ring, a gap is reserved between the fixing ring and the rotating ring, and a sealing ring to be tested is installed on the inner ring of the fixing ring. And after installation, the lip of the sealing ring is contacted with the outer ring of the rotating ring. According to the invention, the actual use condition test condition can be simulated, so that the actual wear resistance, pressure maintaining capability, friction torque, temperature rise condition and sealing performance under the eccentric jumping condition of the sealing ring can be effectively fed back.

Description

Technical Field

[0001] The invention belongs to the field of bearing seal testing, and in particular relates to a bearing seal ring bench testing machine. Background Art

[0002] With the rapid development of new energy sources such as wind power, the power of wind turbines has increased rapidly, and the number of wind turbines installed has increased year by year. As an important component of the bearing, the sealing performance of the sealing ring is a key factor in maintaining the stable operation of the bearing. The existing sealing ring performance test is either performed by installing it on the wind turbine for testing, which is costly and inefficient; or by proportionally scaling the diameter of the sealing ring for testing. This test method of proportionally scaling the diameter of the sealing ring cannot fully simulate the actual use conditions, affecting the accuracy of the test results. The bearing sealing ring bench tester of the present invention can effectively solve these testing problems. Summary of the invention

[0003] The object of the present invention is to provide a bearing sealing ring bench testing machine, which can perform diameter size non-scaling and simulate actual operating conditions test conditions on the ground. At the same time, it is installed horizontally during installation and simulates the upright state under actual working conditions when starting the test; thereby effectively providing feedback on the actual wear resistance, pressure holding capacity, friction torque, temperature rise and sealing performance of the sealing ring under eccentric vibration.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a bearing sealing ring bench testing machine, which includes a base, a reversible main machine, a hydraulic pump station, and an electrical control cabinet; the base is connected to the ground and is used to fix and support the reversible main machine; the reversible main machine is provided with a fixed disk, a reduction motor, a rotating ring, a fixed ring and a sealing ring fixing device; the hydraulic pump station is used to provide a pressure source for the testing machine; the electrical control cabinet is used for controlling the operation of the testing machine; the fixed disk and the base are reversibly connected, the reduction motor is installed on the back of the fixed disk, and the rotating ring is installed on the front of the fixed disk, the rotating ring is driven to rotate by the reduction motor, the fixed ring is arranged on the periphery of the rotating ring, a gap is left between the fixed ring and the rotating ring, the sealing ring to be tested is installed on the inner ring of the fixed ring, and after installation, the lip of the sealing ring contacts the outer ring of the rotating ring; the sealing ring fixing device is used to fix the fixed ring.

[0005] Furthermore, the base is connected to the ground via anchor screws, and a hinge is provided at each of the four corners of the base, through which all the weight of the testing machine and the operating vibration, eccentricity, and overturning moment during the test are transmitted to the base.

[0006] Furthermore, the lower part of the flip host is connected to the front part of the base through a hinge, and the upper part of the flip host is connected to the rear part of the base through a hydraulic cylinder. The pressure of the hydraulic pump station makes the hydraulic cylinder retract and retract to achieve the action of erecting and laying the flip host horizontally.

[0007] Furthermore, a reduction motor seat is provided on the back of the fixed disk, and a reduction motor is placed on the reduction motor seat. The reduction motor transmits power to the rotating ring through the rotating disk and the support rod.

[0008] Furthermore, a torque sensor is provided at the output end of the reduction motor, and the torque sensor is connected to the control system in the electrical control cabinet.

[0009] Furthermore, the rotating disk and the supporting rod are connected together through a key and a keyway.

[0010] Furthermore, the fixing plate is connected to the sealing ring fixing device via a guide rail, the sealing ring fixing device is fixed in direction by the guide rail, and is driven to move on the guide rail by a lead screw and a lead screw power source.

[0011] Furthermore, the sealing ring fixing device is provided in plurality and is arranged around the fixing ring. The sealing ring fixing device includes a servo motor, a fixing ring pressure plate and a screw slide rail mechanism. The servo motor drives the screw to rotate through a synchronous belt, thereby driving the fixing ring pressure plate. The fixed shaft pressure plate is arranged on the slide rail for clamping the fixing ring.

[0012] Furthermore, the fixing ring is provided with threaded holes for a pressure gauge and a pressure source, the threaded holes are provided with a pressure gauge and a pressure pipeline, and the pressure pipeline is connected to the pressure source.

[0013] Furthermore, a temperature sensor is provided on the rotating ring, and the temperature sensor is connected to a control system in an electrical control cabinet.

[0014] Furthermore, the electrical control cabinet is a test machine program control system, through which the required test conditions and test parameters can be set, and the test time, temperature, pressure, torque, vibration and other data can be recorded in real time, and data analysis can be performed.

[0015] The beneficial effects of the present invention are as follows: the bearing sealing ring bench testing machine can carry out a bench test of the sealing ring diameter without scaling 1:1, and the sealing ring test range is from a diameter of 0.3m to a diameter of 10m; and through a special structural design, the sealing ring can be installed horizontally during installation, and the upright state under actual working conditions can be simulated when the test starts; at the same time, the wear resistance, pressure holding capacity, friction torque, temperature rise and sealing performance of the sealing ring under eccentric vibration can be tested, and data such as the performance of the sealing ring can be effectively verified.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front side of the bearing seal ring bench testing machine of the present invention.

[0018] Figure 2 It is a side rear schematic diagram of the bearing seal ring bench testing machine of the present invention.

[0019] Figure 3 It is a schematic diagram of a sealing ring fixing device of a bearing sealing ring bench testing machine of the present invention.

[0020] Figure 4 It is a partial schematic diagram of the fixed ring and the rotating ring of the bearing sealing ring bench testing machine of the present invention.

[0021] The markings in the figure are: 100-base, 101-first hinge at the front of the base, 102-second hinge at the front of the base, 103-first hinge at the rear of the base, 104-second hinge at the rear of the base, 200-reversible host, 201-hydraulic cylinder, 202-fixed plate, 203-sealing ring fixing device, 203.1-servo motor, 203.2-fixed ring pressure plate, 203.3-screw slide rail mechanism, 204-fixed ring, 205 -guide rail, 206-screw, 207-threaded hole on the fixing ring, 208-reduction motor seat, 209-reduction motor, 210-rotating plate, 211-rotating ring, 212-key and keyway, 213-support rod, 214-screw power source, 215-temperature sensor, 216-torque sensor, 300-hydraulic pump station, 301-motor, 302-solenoid valve, 400-electrical control cabinet, 500-sealing ring to be tested. DETAILED DESCRIPTION

[0022] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 4As shown, a bearing seal ring bench test machine includes a base 100, a reversible main machine 200, a hydraulic pump station 300, and an electrical control cabinet 400. The base 100 is provided with 4 hinges, and the base 100 is connected to the ground through anchor screws to fix and support the test machine; the reversible main machine 200 is provided with a hydraulic cylinder 201, a fixed plate 202, a seal ring fixing device 203, a fixed ring 204 of a seal ring test fixture, a guide rail 205, a screw 206, a threaded hole 207 on a fixed shaft, a reduction motor seat 208, a reduction motor 209, a rotating plate 210, a test rotating ring 211, a key and a keyway 212, a support rod 213, and a screw power source 214; the hydraulic pump station 300 is provided with a motor 301 and a solenoid valve 302 to provide a pressure source for the test machine; the electrical control cabinet 400 is a program control system for the test machine.

[0024] In this embodiment, all the weight of the testing machine and loads such as operating vibration, eccentricity, and overturning moment during the test are transmitted to the base through the first hinge 101 at the front of the base, the second hinge 102 at the front of the base, the first hinge 103 at the rear of the base, and the second hinge 104 at the rear of the base.

[0025] In this embodiment, the hydraulic cylinder 201 is connected to the flip host through a hinge, and the fixed disk 202 is connected to the sealing ring fixing device 203 through a guide rail 205; the screw rod 206 is powered by a screw rod power source 214, so that the screw rod rotates, thereby adjusting the position of the sealing ring fixing device 203 on the guide rail 205; the screw rod power source 214 is a reduction motor that drives the screw rod to rotate through a synchronous belt, thereby driving the sealing ring fixing device 203 to move on the guide rail 205; the fixed ring 204 is fixed by the sealing ring fixing device 203, and the test sealing ring is installed on the inner ring of the fixed ring 204; the threaded hole 207 on the fixed shaft 204 is installed with a pressure gauge and a pressure source pipeline, and the pressure gauge transmits the pressure signal to the computer monitoring software for monitoring and recording data; the reduction motor seat 208 is installed with a reduction motor 209, and the reduction motor 209 provides the power required for the test, which is transmitted to the key and keyway 212 through the rotating disk 210, and finally transmitted to the test rotating ring 211 through the support rod 213.

[0026] In this embodiment, the hydraulic pump station 300 provides appropriate pressure to the hydraulic cylinder 201 through the motor 301 and the solenoid valve 302, so that the hydraulic cylinder 201 extends and retracts, thereby realizing the erection and horizontal placement of the flip host 200 with the hinge as the fulcrum; when it is horizontally placed, the fixing ring 204 and the sealing ring can be installed. First, the sealing ring is installed on the fixing ring 204 of suitable size. Then, after the fixing ring 204 is placed, the sealing ring fixing device 203 is moved as a whole, and then the fixing ring pressure plate is driven to fix the fixing ring 204. Then, the flip host 200 can be erected and wait for the test. The required program for the test is set through the electrical control cabinet 400, and the power is provided by the reduction motor 209, so that the test sealing ring and the test rotating ring 211 move relative to each other, the torque sensor 216 is used to test the torque of the sealing ring, the temperature sensor 215 is used to test the temperature rise of the sealing ring, and the pressure gauge is used to test the pressure holding capacity of the sealing ring. The above sensors send data signals to the computer monitoring software for monitoring and recording data, thereby achieving the purpose of testing the performance of the sealing ring.

[0027] In summary, in the bearing seal ring bench test machine, through the special structural design, the seal ring test range is achieved from 0.3m in diameter to 10m in diameter; through the special structural design, the seal ring can be installed horizontally during installation, and the vertical state under actual working conditions can be simulated when the test starts; through the special structural design, the seal ring's wear resistance, pressure holding capacity, friction torque, temperature rise and sealing performance under eccentric runout can be tested.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the protection scope of the present invention in any form, and all technical solutions obtained by equivalent replacement and the like fall within the protection scope of the present invention.

[0029] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.

Claims

1. A bearing seal ring bench testing machine, characterized in that: It includes a base, a reversible main machine, a hydraulic pump station, and an electrical control cabinet; the base is connected to the ground and is used to fix and support the reversible main machine; the reversible main machine is provided with a fixed disk, a reduction motor, a rotating ring, a fixed ring and a sealing ring fixing device; the hydraulic pump station is used to provide a pressure source for the testing machine; the electrical control cabinet is used to control the operation of the testing machine; the fixed disk and the base are reversibly connected, the reduction motor is installed on the back of the fixed disk, the rotating ring is installed on the front of the fixed disk, the rotating ring is driven to rotate by the reduction motor, the fixed ring is arranged on the periphery of the rotating ring, a gap is left between the fixed ring and the rotating ring, the sealing ring to be tested is installed on the inner ring of the fixed ring, and after installation, the lip of the sealing ring contacts the outer ring of the rotating ring; the sealing ring fixing device is used to fix the fixed ring.

2. A bearing seal ring bench testing machine according to claim 1, characterized in that: The base is connected to the ground through anchor screws, and a hinge is arranged at each of the four corners of the base, through which all the weight of the test machine and the running vibration, eccentricity and overturning moment during the test are transmitted to the base.

3. The bearing seal ring bench testing machine according to claim 1, characterized in that: The lower part of the flip host is connected to the front part of the base through a hinge, and the upper part of the flip host is connected to the rear part of the base through a hydraulic cylinder. The pressure of the hydraulic pump station makes the hydraulic cylinder expand and contract to realize the erection and laying-flat actions of the flip host.

4. The bearing seal ring bench testing machine according to claim 1, characterized in that: A reduction motor seat is also provided on the back of the fixed disk, on which a reduction motor is placed, and the reduction motor transmits power to the rotating ring through the rotating disk and the support rod.

5. The bearing seal ring bench testing machine according to claim 4, characterized in that: The output end of the reduction motor is provided with a torque sensor, and the torque sensor is connected to the control system in the electrical control cabinet.

6. The bearing seal ring bench testing machine according to claim 4, characterized in that: The rotating disk and the supporting rod are connected together through a key and a keyway.

7. The bearing seal ring bench testing machine according to claim 1, characterized in that: The fixing plate is connected to the sealing ring fixing device through a guide rail, the sealing ring fixing device is fixed in direction by the guide rail, and is driven to move on the guide rail by a lead screw and a lead screw power source.

8. A bearing seal ring bench testing machine according to claim 1 or 7, characterized in that: The sealing ring fixing device is provided in plurality and is arranged around the fixing ring. The sealing ring fixing device includes a servo motor, a fixing ring pressure plate and a screw slide rail mechanism. The servo motor drives the screw to rotate through a synchronous belt, thereby driving the fixing ring pressure plate. The fixed shaft pressure plate is arranged on the slide rail for clamping the fixing ring.

9. The bearing seal ring bench testing machine according to claim 1, characterized in that: The fixing ring is provided with threaded holes for a pressure gauge and a pressure source, the threaded holes are provided with a pressure gauge and a pressure pipeline, and the pressure pipeline is connected to the pressure source.

10. The bearing seal ring bench testing machine according to claim 1, characterized in that: The rotating ring is provided with a temperature sensor, which is connected to a control system in an electrical control cabinet.

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