A reliability test bench for oil distributor

Abstract

A reliability test bench for an oil distributor includes a driving device, a first coupling, a second coupling, a universal coupling, an intermediate shaft, a flange coupling and an oil distributor connected in sequence, the axes of the driving device and the first coupling are in a straight line, and the axes of the second coupling, the intermediate shaft, the flange coupling and the oil distributor are in a straight line; a first angle is formed between the axis of the oil distributor and the horizontal plane, which is an acute angle, and a sensor is arranged on the oil distributor; the driving device is arranged on the top surface of the first support frame, the intermediate shaft is arranged on the top surfaces of the second support frame and the third support frame, and the other end of the oil distributor is arranged on the top surface of the fourth support frame; the bottom surfaces of the first support frame, the second support frame, the third support frame and the fourth support frame are in a straight line; the test bench also includes a test method for the reliability test bench for an oil distributor. This design can not only reduce the failure rate of the ship's adjustable pitch propeller device, but also diagnose the failure of the adjustable pitch propeller device.

Description

Technical Field

[0001] The invention relates to a test bench, belongs to the field of ship propulsion systems, and in particular to an oil distributor reliability test bench. Background Art

[0002] The ship's controllable pitch propeller propulsion system has a continuously adjustable blade angle, so the main engine load, thrust size and direction can be adjusted arbitrarily within a certain range. By adjusting the pitch, not only the speed can be controlled, but also the ship can be reversed, making it more maneuverable and maneuverable, and improving the ship's degree of automation. Because the controllable pitch propeller has many obvious advantages over the fixed-pitch propeller, it is widely used in various types of main ships in my country.

[0003] The ship's controllable pitch propeller system is a complex mechanical, electrical and hydraulic coupling system. The mechanical system's motion transmission mechanism is complex, and there are many parts that need to cooperate and connect with each other. The reliability, stability of its operation and the control accuracy of the pitch angle are the primary considerations in the design of the electro-hydraulic system of the pitch control device. The electrical control and hydraulic systems are directly related to the safe operation of the propulsion device and the ship.

[0004] The oil distributor component is an important mechanism of the hydraulic system in the controllable pitch propeller system. Its working reliability is directly related to the safe use of the controllable pitch propeller device. Therefore, it is necessary to conduct online monitoring of the operating status of the oil distributor component through a test bench, verify the influence of various test failures and data abnormalities on the operating status of the controllable pitch propeller device, evaluate the possible failure phenomena, and guide the fault diagnosis and emergency treatment of the controllable pitch propeller device to solve the following problems existing in the prior art:

[0005] The failure rate of the ship's controllable pitch propeller device in the prior art is relatively high, and the fault diagnosis of the controllable pitch propeller device is inconvenient.

[0006] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the application, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the invention

[0007] The purpose of the present invention is to overcome the defects and problems of the prior art in that the failure rate of a ship's adjustable pitch propeller device is high and the fault diagnosis of the adjustable pitch propeller device is inconvenient, and to provide an oil distributor reliability test bench that can reduce the failure rate of a ship's adjustable pitch propeller device and diagnose the fault of the adjustable pitch propeller device.

[0008] To achieve the above purpose, the technical solution of the present invention is: a reliability test bench for an oil distributor, the test bench comprising a driving device, a first coupling, a second coupling, a universal coupling, an intermediate shaft, a flange coupling and an oil distributor; the power output shaft of the driving device is connected to one end of the first coupling, the other end of the first coupling is connected to one end of the universal coupling, the other end of the universal coupling is connected to one end of the second coupling, the other end of the second coupling is connected to one end of the intermediate shaft, the other end of the intermediate shaft is connected to one end of the flange coupling, the other end of the flange coupling is connected to one end of the oil distributor, and the other end of the oil distributor extends forward;

[0009] The axes of the driving device and the first coupling are in a straight line, and the axes of the second coupling, the intermediate shaft, the flange coupling and the oil distributor are in a straight line; a first angle is formed between the axis of the oil distributor and the horizontal plane, and the first angle is an acute angle; a sensor is provided on the oil distributor;

[0010] The driving device is arranged on the top surface of the first support frame, one end of the intermediate shaft is arranged on the top surface of the second support frame, the other end of the intermediate shaft is arranged on the top surface of the third support frame, and the other end of the oil distributor is arranged on the top surface of the fourth support frame;

[0011] The bottom surfaces of the first support frame, the second support frame, the third support frame and the fourth support frame are in a straight line.

[0012] A first coupling cavity is formed inside the first coupling, and a first flange portion is formed on an outer wall of one end of the first coupling; the power output shaft of the driving device is plug-connected with the first coupling cavity;

[0013] The universal coupling comprises a universal shaft and coupling sleeves sleeved at both ends thereof, both ends of the universal shaft are spherical ends; the coupling sleeve comprises a large diameter ring and a small diameter ring, and the spherical end is movably connected in the small diameter ring; the first flange portion is fixedly connected to the large diameter ring at one end of the universal coupling by a plurality of first bolts;

[0014] A second coupling cavity is formed inside the second coupling, and a second flange portion is formed on the outer wall of one end of the second coupling; the large diameter ring at the other end of the universal coupling is fixedly connected to the second flange portion by a plurality of second bolts;

[0015] One end of the intermediate shaft is plug-connected with the second coupling cavity, and the other end of the intermediate shaft is formed with a third flange portion;

[0016] The flange coupling comprises a small diameter flange portion and a large diameter flange portion, and the third flange portion and the small diameter flange portion are fixedly connected by a plurality of third bolts;

[0017] The oil distributor includes an oil distribution shaft and an oil distribution box. The oil distribution box is sleeved on the middle part of the oil distribution shaft. A fourth flange portion is formed at one end of the oil distribution shaft. The large diameter flange portion and the fourth flange portion are fixedly connected by a plurality of fourth bolts.

[0018] The body of the driving device is fixedly connected to the top surface of the first support frame by a plurality of fifth bolts; a first bearing member is sleeved on the outer wall of one end of the intermediate shaft, and a second bearing member is sleeved on the outer wall of the other end of the intermediate shaft;

[0019] The bottom surface of the first bearing member is fixedly connected to the top surface of the second support frame by a plurality of sixth bolts, and the bottom surface of the second bearing member is fixedly connected to the top surface of the third support frame by a plurality of seventh bolts; the intermediate shaft passes through the middle of the first bearing member and the second bearing member, and rotates along the axis of the intermediate shaft;

[0020] A third bearing member is sleeved on the outer wall of the other end of the oil distribution shaft, and the bottom surface of the third bearing member is fixedly connected to the top surface of the fourth support frame by a plurality of eighth bolts; the oil distribution shaft passes through the middle part of the third bearing member and extends forward, and rotates along the axis of the oil distribution shaft.

[0021] The second support frame, the third support frame and the fourth support frame are all height-adjustable support frames.

[0022] The height-adjustable support frame includes a support base, a pad and bolts. The top surface of the support base is an inclined surface, and the pad is connected to the top surface of the support base by a plurality of bolts. A second angle is formed between the top surface of the pad and the horizontal plane, and the second angle is consistent with the first angle.

[0023] The first support frame is consistent with the second support frame in height, the second support frame is higher than the third support frame, and the third support frame is higher than the fourth support frame; the top surfaces of the second support frame and the third support frame are in a straight line.

[0024] The power of the oil distributor is 0-4000 kW·h.

[0025] The driving device is a variable frequency motor, and the rotation speed of the driving device is 0-500r / min.

[0026] The sensors include a temperature sensor, a pressure sensor, a vibration sensor and a flow sensor.

[0027] A test method for a reliability test bench of an oil distributor, the test method comprising the following steps:

[0028] Step 1: Start the driving device, the driving device drives the first coupling, the universal coupling and the second coupling to rotate, and the rotation of the second coupling drives the intermediate shaft, the flange coupling and the oil distributor to rotate;

[0029] Step 2: Preheat the test bench; set the adjustable oil pressure to the highest value, gradually increase the speed, and run for a certain period of time until the oil temperature and leakage flow rate rise to the values ​​during normal operation, record the sensor data, and record the oil temperature and leakage flow rate;

[0030] Step 3, perform a distance adjustment simulation test on the oil distributor preset under different working conditions; preset the oil distributor into several groups, set different speeds and distance adjustment oil pressures, the speed is ≤ the theoretical maximum speed, run for a certain time, record the temperature and leakage flow values ​​reached by distance adjustment under different speeds and distance adjustment oil pressures, and record sensor data; the speed is inversely proportional to the distance adjustment oil pressure;

[0031] Step 4: Test the running stability of the simulated oil distributor under extreme working conditions; set the speed of the oil distributor to the theoretical maximum speed, set the oil pressure to 0, run for a certain period of time, observe the oil temperature change, and the subsequent steps of the operation are any of the following:

[0032] The first method: If the oil temperature changes stably, continue to increase the speed for at least one more time until the actual maximum speed of the oil distributor is reached, and record the sensor data, oil temperature and leakage flow;

[0033] The second method: If the oil temperature changes unstably, continue to run at the current speed until the oil temperature changes steadily, then continue to increase the speed for at least one more time until the actual maximum speed of the oil distributor is reached, and record the sensor data, oil temperature and leakage flow.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. A reliability test bench for an oil distributor of the present invention comprises a driving device, a first coupling, a second coupling, a universal coupling, an intermediate shaft, a flange coupling and an oil distributor connected in sequence, the axes of the driving device and the first coupling are in a straight line, and the axes of the second coupling, the intermediate shaft, the flange coupling and the oil distributor are in a straight line; a first angle is formed between the axis of the oil distributor and the horizontal plane, which is an acute angle, and a sensor is arranged on the oil distributor; the driving device is arranged on the top surface of the first support frame, and the intermediate shaft is arranged On the top surface of the second support frame and the third support frame, the other end of the oil distributor is arranged on the top surface of the fourth support frame; the bottom surfaces of the first support frame, the second support frame, the third support frame and the fourth support frame are in a straight line; in application, the coordination of the universal coupling and the support frame can better simulate the shaft system inclination angle of the oil distributor in the actual ship state, so that the operation condition of the oil distributor is closer to the actual ship, and the collected test parameters are more accurate, and the sensor arranged on the oil distributor can monitor the oil temperature, vibration, pressure, leakage flow and other data of the oil distributor in real time. Therefore, the present invention can not only reduce the failure rate of the ship's adjustable pitch propeller device, but also diagnose the failure of the adjustable pitch propeller device.

[0036] 2. In the reliability test bench of the oil distributor of the present invention, the second support frame, the third support frame, and the fourth support frame are all height-adjustable support frames; in application, by adjusting the height of the second, third, and fourth support frames, the angle between the oil distributor and the horizontal plane can be adjusted, so that the oil distributor under different shaft inclination angles can be simulated, which improves the compatibility of the test device and provides more abundant data support for the fault diagnosis of the adjustable pitch propeller device, thereby reducing the failure rate. Therefore, the present invention not only has high compatibility, but also can reduce the failure rate of the adjustable pitch propeller device of the ship.

[0037] 3. A test method for a reliability test bench of an oil distributor of the present invention comprises the following steps: first, starting the rotation of a driving device, and then preheating the test bench so that the test bench works in the working state of the normal operation of an actual ship; secondly, performing a pitch adjustment simulation test on the preset oil distributor under different working conditions, and recording the temperature and leakage flow values ​​achieved by the pitch adjustment under different speeds and pitch adjustment oil pressures, so as to simulate and estimate the conditions that may occur in the pitch adjustment process of the actual ship; finally, testing the operating stability of the simulated oil distributor under extreme working conditions, by gradually increasing the speed on the basis of the theoretical speed of the oil distributor until the actual maximum speed of the oil distributor is reached, testing the stability of the oil distributor under extreme working conditions, so as to guide the feasibility of the actual ship to continue to operate under extreme conditions; by collecting these data and performing statistical analysis on them, the corresponding relationship between the oil temperature, vibration, pressure and the corresponding speed, leakage flow and other values ​​can be obtained, so that a database of test data and fault modes can be established to guide the fault diagnosis and emergency treatment of the adjustable pitch propeller device, and by comparing the actual ship data with the data in the database, the components that may fail can be judged and processed. Therefore, the present invention can not only diagnose the fault of the controllable pitch propeller device, but also reduce the failure rate of the controllable pitch propeller device of the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the present invention.

[0039] Figure 2 It is a structural schematic diagram of the front part of the present invention.

[0040] Figure 3 It is a structural schematic diagram of a part of the middle section of the present invention.

[0041] Figure 4 It is a structural schematic diagram of the latter part of the present invention.

[0042] Figure 5 It is a structural schematic diagram of the height-adjustable bracket in the present invention.

[0043] Figure 6 It is a schematic structural diagram of the first coupling in the present invention.

[0044] Figure 7 It is a structural schematic diagram of the universal coupling in the present invention.

[0045] Figure 8 It is a schematic structural diagram of the second coupling in the present invention.

[0046] Fig. 9 It is a structural schematic diagram of the flange coupling in the present invention.

[0047] Fig.10It is a structural schematic diagram of the oil distributor in the present invention.

[0048] In the figure: drive device 1, first coupling 2, first coupling cavity 201, first flange portion 202, universal coupling 3, universal shaft 301, spherical end 302, coupling sleeve 303, large diameter ring 304, small diameter ring 305, intermediate shaft 4, third flange portion 41, flange coupling 5, small diameter flange portion 51, large diameter flange portion 52, oil distributor 6, oil distributor shaft 61, oil distributor box 62, fourth flange portion 63, first support frame 7, second support frame 8, third Support frame 9, fourth support frame 10, sensor 11, first angle 12, first bearing member 13, second bearing member 14, third bearing member 15, first bolt 16, second bolt 17, third bolt 18, fourth bolt 19, fifth bolt 20, sixth bolt 21, seventh bolt 22, eighth bolt 23, support base 24, pad 241, bolt 242, second angle 25, second coupling 26, second coupling cavity 261, second flange portion 262. DETAILED DESCRIPTION

[0049] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0050] See also Figure 1 — Fig.10 , a reliability test bench for an oil distributor, the test bench comprising a drive device 1, a first coupling 2, a second coupling 26, a universal coupling 3, an intermediate shaft 4, a flange coupling 5 and an oil distributor 6; the power output shaft of the drive device 1 is connected to one end of the first coupling 2, the other end of the first coupling 2 is connected to one end of the universal coupling 3, the other end of the universal coupling 3 is connected to one end of the second coupling 26, the other end of the second coupling 26 is connected to one end of the intermediate shaft 4, the other end of the intermediate shaft 4 is connected to one end of the flange coupling 5, the other end of the flange coupling 5 is connected to one end of the oil distributor 6, and the other end of the oil distributor 6 extends forward;

[0051] The axes of the driving device 1 and the first coupling 2 are in a straight line, and the axes of the second coupling 26, the intermediate shaft 4, the flange coupling 5 and the oil distributor 6 are in a straight line; a first angle 12 is formed between the axis of the oil distributor 6 and the horizontal plane, and the first angle 12 is an acute angle; a sensor 11 is provided on the oil distributor 6;

[0052] The driving device 1 is arranged on the top surface of the first support frame 7, one end of the intermediate shaft 4 is arranged on the top surface of the second support frame 8, the other end of the intermediate shaft 4 is arranged on the top surface of the third support frame 9, and the other end of the oil distributor 6 is arranged on the top surface of the fourth support frame 10;

[0053] The bottom surfaces of the first support frame 7 , the second support frame 8 , the third support frame 9 and the fourth support frame 10 are in a straight line.

[0054] A first coupling cavity 201 is formed inside the first coupling 2, and a first flange portion 202 is formed on the outer wall of one end of the first coupling 2; the power output shaft of the drive device 1 is plug-connected with the first coupling cavity 201;

[0055] The universal coupling 3 includes a universal shaft 301 and coupling sleeves 303 sleeved at both ends thereof, both ends of the universal shaft 301 are spherical ends 302; the coupling sleeve 303 includes a large diameter ring 304 and a small diameter ring 305, and the spherical end 302 is movably connected in the small diameter ring 305; the first flange portion 202 is fixedly connected to the large diameter ring 304 at one end of the universal coupling 3 by a plurality of first bolts 16;

[0056] A second coupling cavity 261 is formed inside the second coupling 26, and a second flange portion 262 is formed on the outer wall of one end of the second coupling 26; the large diameter ring 304 at the other end of the universal coupling 3 is fixedly connected to the second flange portion 262 by a plurality of second bolts 17;

[0057] One end of the intermediate shaft 4 is plug-connected with the second coupling cavity 261, and the other end of the intermediate shaft 4 is formed with a third flange portion 41;

[0058] The flange coupling 5 includes a small diameter flange portion 51 and a large diameter flange portion 52, and the third flange portion 41 is fixedly connected to the small diameter flange portion 51 by a plurality of third bolts 18;

[0059] The oil distributor 6 includes an oil distribution shaft 61 and an oil distribution box 62 . The oil distribution box 62 is sleeved on the middle of the oil distribution shaft 61 . A fourth flange portion 63 is formed at one end of the oil distribution shaft 61 . The large-diameter flange portion 52 and the fourth flange portion 63 are fixedly connected by a plurality of fourth bolts 19 .

[0060] The body of the driving device 1 is fixedly connected to the top surface of the first support frame 7 by a plurality of fifth bolts 20; a first bearing member 13 is sleeved on the outer wall of one end of the intermediate shaft 4, and a second bearing member 14 is sleeved on the outer wall of the other end of the intermediate shaft 4;

[0061] The bottom surface of the first bearing member 13 is fixedly connected to the top surface of the second support frame 8 by a plurality of sixth bolts 21, and the bottom surface of the second bearing member 14 is fixedly connected to the top surface of the third support frame 9 by a plurality of seventh bolts 22; the intermediate shaft 4 is arranged in the middle of the first bearing member 13 and the second bearing member 14, and rotates along the axis of the intermediate shaft 4;

[0062] A third bearing member 15 is sleeved on the outer wall of the other end of the oil distribution shaft 61, and the bottom surface of the third bearing member 15 is fixedly connected to the top surface of the fourth support frame 10 by a plurality of eighth bolts 23; the oil distribution shaft 61 passes through the middle part of the third bearing member 15 and extends forward, and rotates along the axis of the oil distribution shaft 61.

[0063] The second support frame 8, the third support frame 9 and the fourth support frame 10 are all height-adjustable support frames.

[0064] The height-adjustable support frame includes a support base 24, a pad 241 and bolts 242. The top surface of the support base 24 is an inclined surface, and the pad 241 is connected to the top surface of the support base 24 by a plurality of bolts 242. A second angle 25 is formed between the top surface of the pad 241 and the horizontal plane, and the second angle 25 is consistent with the first angle 12.

[0065] The first support frame 7 is consistent with the second support frame 8 in height, the second support frame 8 is higher than the third support frame 9, and the third support frame 9 is higher than the fourth support frame 10; the top surfaces of the second support frame 8 and the third support frame 9 are in a straight line.

[0066] The power of the oil distributor 6 is 0-4000 kW·h.

[0067] The driving device 1 is a variable frequency motor, and the rotation speed of the driving device 1 is 0-500r / min.

[0068] The sensor 11 includes a temperature sensor, a pressure sensor, a vibration sensor and a flow sensor.

[0069] A test method for a reliability test bench of an oil distributor, the test method comprising the following steps:

[0070] Step 1: Start the driving device 1, the driving device 1 drives the first coupling 2, the universal coupling 3 and the second coupling 26 to rotate, and the rotation of the second coupling 26 drives the intermediate shaft 4, the flange coupling 5 and the oil distributor 6 to rotate;

[0071] Step 2: Preheat the test bench; set the adjustable oil pressure to the highest value, gradually increase the speed, and run for a certain period of time until the oil temperature and leakage flow rate rise to the values ​​during normal operation, record the data of sensor 11, and record the oil temperature and leakage flow rate;

[0072] Step 3, perform a distance adjustment simulation test on the oil distributor preset under different working conditions; preset the oil distributor into several groups, set different speeds and distance adjustment oil pressures, the speed is ≤ the theoretical maximum speed, run for a certain time, record the temperature and leakage flow values ​​reached by distance adjustment under different speeds and distance adjustment oil pressures, and record the data of sensor 11; the speed is inversely proportional to the distance adjustment oil pressure;

[0073] Step 4: Test the running stability of the simulated oil distributor under extreme working conditions; set the speed of the oil distributor to the theoretical maximum speed, set the oil pressure to 0, run for a certain period of time, observe the oil temperature change, and the subsequent steps of the operation are any of the following:

[0074] The first method: if the oil temperature changes stably, continue to increase the speed for at least one operation until the actual maximum speed of the oil distributor is reached, and record the data of sensor 11, the oil temperature and the leakage flow;

[0075] The second method: If the oil temperature changes unstably, continue to run at the current speed until the oil temperature changes stably, then continue to increase the speed for at least one time until the actual maximum speed of the oil distributor is reached, and record the data of sensor 11, the oil temperature and the leakage flow.

[0076] The principle of the present invention is described as follows:

[0077] In the present invention, since propeller pitch adjustment during the operation of the actual ship will cause an increase in oil temperature and leakage, the oil temperature and leakage are the main reference objects of faults in this test device. The data recorded by the sensors in this test bench include but are not limited to temperature, pressure, vibration, oil pressure, and leakage flow.

[0078] In the present invention, the driving device can be replaced with a driving device with greater power according to actual needs to expand the versatility of the test bench.

[0079] In the present invention, the driving device 1 is first fixed to the first support frame, the first bearing member 13 is fixed to the second support frame 8 through a plurality of sixth bolts 21, the second bearing member 14 is fixed to the third support frame 9 through a plurality of seventh bolts 22, and the third bearing member 15 is fixed to the fourth support frame 10 through a plurality of eighth bolts 23; then the intermediate shaft 4 is passed through the middle of the first bearing member 13 and the second bearing member 14; the power output shaft of the driving device 1 is connected to the first coupling 2, the universal coupling 3, the second coupling 26, the intermediate shaft 3, and the flange coupling The shaft 5 and the oil distributor 6 are connected in sequence by bolts; finally, the bolts on the second, third and fourth support frames are loosened, and the bolts connecting the flange coupling 5 with the intermediate shaft 4 and the oil distributor 6 are loosened. Pads are added or reduced on the support frame to adjust the angle between the intermediate shaft 4, the flange coupling 5, the oil distributor 6 and the horizontal plane to simulate the angle of the actual ship, and the axes of the intermediate shaft 4, the flange coupling 5 and the oil distributor 6 are controlled in a straight line, and then all the previously loosened bolts are tightened to complete the basic assembly work of the test bench; the flange coupling is a A replaceable component. If the size of the connected oil distributor changes, it can be adjusted by adapting different flange couplings. There is no need to change the drive device and support device at the front end of the test bench to meet the test requirements of different series of oil distributors. The fourth support frame at the tail end of the oil distributor is an adjustable structure. With the universal coupling at the front end as the fulcrum, the inclination of the oil distributor with the horizontal direction is adjusted by adjusting the support height at both ends of the oil distributor. The purpose is also to simulate the inclination of the shaft system of the oil distributor under the actual ship state, so that the operation of the oil distributor is closer to the actual ship. It is convenient to collect experimental parameters more accurately. After the oil distributor is assembled, the large diameter end and the small diameter end of the flange coupling need to be turned and corrected so that the outer diameter runout tolerance between the parts connected at both ends is ≤0.05mm; and the connection between the oil distribution shaft and the distribution box is such that the outer diameter runout tolerance between the two is ≤0.1mm. After the oil distribution shaft is corrected, the B and A oil ports of the oil distributor are respectively connected to the B and A ports of the process pump station with hoses; the T port of the oil distributor is connected to the oil return port of the process pump station, and the C port of the oil distributor is connected to the oil inlet of the gravity oil tank to complete the preparation work before the oil distributor rotation test.

[0080] Embodiment 1:

[0081] See also Figure 1 — Fig.10, a reliability test bench for an oil distributor, the test bench comprises a driving device 1, a first coupling 2, a second coupling 26, a universal coupling 3, an intermediate shaft 4, a flange coupling 5 and an oil distributor 6 (preferably an axial oil distributor); the power output shaft of the driving device 1 is connected to one end of the first coupling 2, the other end of the first coupling 2 is connected to one end of the universal coupling 3, the other end of the universal coupling 3 is connected to one end of the second coupling 26, the other end of the second coupling 26 is connected to one end of the intermediate shaft 4, the other end of the intermediate shaft 4 is connected to one end of the flange coupling 5, the other end of the flange coupling 5 is connected to one end of the oil distributor 6, and the other end of the oil distributor 6 extends forward; the driving device 1 is connected to one end of the first coupling 2, the other end of the first coupling 2 is connected to one end of the universal coupling 3, the other end of the universal coupling 3 is connected to one end of the second coupling 26, the other end of the second coupling 26 is connected to one end of the intermediate shaft 4, the other end of the intermediate shaft 4 is connected to one end of the flange coupling 5, the other end of the flange coupling 5 is connected to one end of the oil distributor 6, and the other end of the oil distributor 6 extends forward; The axes of the driving device 1 and the first coupling 2 are in a straight line, and the axes of the second coupling 26, the intermediate shaft 4, the flange coupling 5 and the oil distributor 6 are in a straight line; a first angle 12 is formed between the axis of the oil distributor 6 and the horizontal plane, and the first angle 12 is an acute angle; a sensor 11 is provided on the oil distributor 6; the driving device 1 is arranged on the top surface of the first support frame 7, one end of the intermediate shaft 4 is arranged on the top surface of the second support frame 8, the other end of the intermediate shaft 4 is arranged on the top surface of the third support frame 9, and the other end of the oil distributor 6 is arranged on the top surface of the fourth support frame 10; the bottom surfaces of the first support frame 7, the second support frame 8, the third support frame 9 and the fourth support frame 10 are in a straight line.

[0082] Embodiment 2:

[0083] The basic content is the same as that of Example 1, except that:

[0084] A test method for a reliability test bench of an oil distributor, the test method comprising the following steps:

[0085] Step 1, start the driving device 1, the driving device 1 drives the first coupling 2, the universal coupling 3 and the second coupling 26 to rotate, and the rotation of the second coupling 26 drives the intermediate shaft 4, the flange coupling 5 and the oil distributor 6 to rotate;

[0086] Step 2: Preheat the test bench;

[0087] A1. Set the oil pressure of the oil distributor to 7.0MPa, the speed to 130r / min, and run for 0.5 hours; at this time, the oil temperature is 30℃ and the leakage flow is less than 2L; record the data of sensor 11, record the oil temperature and leakage flow;

[0088] A2. Set the oil pressure of the oil distributor to 7.0MPa and the speed to 170r / min, and run for 2 hours. At this time, the oil temperature is 30℃ and the leakage flow is less than 3L. Record the data of sensor 11, including the oil temperature and leakage flow.

[0089] Step 3: Conduct a distance adjustment simulation test on the preset oil distributor under different working conditions;

[0090] Working condition 1:

[0091] A3. Set the oil distributor speed to 100r / min, the oil pressure to 7.0MPa, and run for 25 seconds; at this time, the oil temperature is 30℃ and the leakage flow is less than 1L;

[0092] A4. Set the oil distributor speed to 100r / min, the oil pressure to 0MPa, and run for 215 seconds; at this time, the oil temperature is 30℃ and the leakage flow is less than 0.5L;

[0093] A5. Run steps A3 and A4 alternately for 0.5 hours, record the data of sensor 11, and record the oil temperature and leakage flow;

[0094] Working condition 2:

[0095] A6. Set the oil distributor speed to 200r / min, the oil pressure to 6.0MPa, and run for 25 seconds; at this time, the oil temperature is 40℃ and the leakage flow is less than 4L;

[0096] A7. Set the oil distributor speed to 200r / min, the oil pressure to 0MPa, and run for 215 seconds; at this time, the oil temperature is 40℃ and the leakage flow is less than 1L;

[0097] A8. Run steps A6 and A7 alternately for 2 hours; record the data of sensor 11 and the leakage flow;

[0098] Working condition three:

[0099] A9. Set the oil distributor speed to 269r / min, the oil pressure to 4.5MPa, and run for 25 seconds; at this time, the oil temperature is 50℃ and the leakage flow is less than 6L;

[0100] A10. Set the oil distributor speed to 269r / min, the oil pressure to 0MPa, and run for 215 seconds; at this time, the oil temperature is 50℃ and the leakage flow is less than 2L;

[0101] A11. Run steps A9 and A10 alternately for 2 hours; record the data of sensor 11 and the leakage flow.

[0102] Embodiment 3:

[0103] The basic content is the same as that of Example 2, except that:

[0104] Continue to test the operating stability of the simulated oil distributor under extreme working conditions; first, set the oil pressure of the oil distributor to 0MPa, the speed to 269r / min, and run for 5 hours; during this period, measure the oil temperature every 10 minutes to observe the oil temperature change range. The observation result is any of the following:

[0105] If the oil temperature variation is within ±2 degrees, set the oil pressure of the oil distributor to 0MPa, the speed to 278r / min, run for 1 hour, record the data of sensor 11, and record the leakage flow;

[0106] If the oil temperature changes within ±2 degrees, continue to run at the current value until the oil temperature changes within ±2 degrees, then set the oil pressure of the distributor to 0MPa and the speed to 278r / min, run for 1 hour, if the temperature is stable, continue to increase the speed until the actual maximum speed of the distributor is reached, record the data of sensor 11, and record the leakage flow;

[0107] The test bench simulates the highest working conditions of the actual ship for the pitch adjustment assessment indicators: the pitch adjustment oil pressure is 4.5MPa, the speed is 269r / min, the oil temperature is ≤50℃, and the leakage flow is <6L / min;

[0108] If the oil temperature and leakage flow rate during the distance adjustment process are close to the assessment index, the operating conditions of the relevant components should be observed;

[0109] If the oil temperature and leakage flow during the pitch adjustment process exceed the assessment indicators, it is judged that the relevant components may have faults and the ship should be stopped for inspection and maintenance.

[0110] The above numerical values ​​are all based on the reference parameters of the adjustable pitch propeller device used in the test. Therefore, the above numerical parameters should not be regarded as limitations on the test bench. The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. An oil dispenser reliability test bench, characterized by: The test bench comprises a driving device (1), a first coupling (2), a second coupling (26), a universal coupling (3), an intermediate shaft (4), a flange coupling (5) and an oil distributor (6); the power output shaft of the driving device (1) is connected to one end of the first coupling (2), the other end of the first coupling (2) is connected to one end of the universal coupling (3), the other end of the universal coupling (3) is connected to one end of the second coupling (26), the other end of the second coupling (26) is connected to one end of the intermediate shaft (4), the other end of the intermediate shaft (4) is connected to one end of the flange coupling (5), the other end of the flange coupling (5) is connected to one end of the oil distributor (6), and the other end of the oil distributor (6) extends forward; The axes of the driving device (1) and the first coupling (2) are in a straight line, and the axes of the second coupling (26), the intermediate shaft (4), the flange coupling (5) and the oil distributor (6) are in a straight line; a first angle (12) is formed between the axis of the oil distributor (6) and a horizontal plane, and the first angle (12) is an acute angle; a sensor (11) is provided on the oil distributor (6); The driving device (1) is arranged on the top surface of the first support frame (7), one end of the intermediate shaft (4) is arranged on the top surface of the second support frame (8), the other end of the intermediate shaft (4) is arranged on the top surface of the third support frame (9), and the other end of the oil distributor (6) is arranged on the top surface of the fourth support frame (10); The bottom surfaces of the first support frame (7), the second support frame (8), the third support frame (9) and the fourth support frame (10) are on a straight line; The second support frame (8), the third support frame (9) and the fourth support frame (10) are all height-adjustable support frames. The fourth support frame (10) uses the universal coupling (3) at the front end as a fulcrum to adjust the inclination angle of the oil distributor with respect to the horizontal direction.

2. The reliability test bench for oil dispenser according to claim 1 is characterized by: A first coupling cavity (201) is formed inside the first coupling (2), and a first flange portion (202) is formed on an outer wall of one end of the first coupling (2); the power output shaft of the drive device (1) is plug-connected to the first coupling cavity (201); The universal coupling (3) comprises a universal shaft (301) and coupling sleeves (303) sleeved at both ends of the universal shaft (301), both ends of the universal shaft (301) are spherical ends (302); the coupling sleeve (303) comprises a large diameter ring (304) and a small diameter ring (305), and the spherical end (302) is movably connected in the small diameter ring (305); the first flange portion (202) is fixedly connected to the large diameter ring (304) at one end of the universal coupling (3) by a plurality of first bolts (16); A second coupling cavity (261) is formed inside the second coupling (26), and a second flange portion (262) is formed on the outer wall of one end of the second coupling (26); the large diameter ring (304) at the other end of the universal coupling (3) is fixedly connected to the second flange portion (262) by a plurality of second bolts (17); One end of the intermediate shaft (4) is plug-connected with the second coupling cavity (261), and the other end of the intermediate shaft (4) is formed with a third flange portion (41); The flange coupling (5) comprises a small-diameter flange portion (51) and a large-diameter flange portion (52), and the third flange portion (41) and the small-diameter flange portion (51) are fixedly connected by a plurality of third bolts (18); The oil distributor (6) comprises an oil distribution shaft (61) and an oil distribution box (62). The oil distribution box (62) is sleeved on the middle part of the oil distribution shaft (61). A fourth flange portion (63) is formed at one end of the oil distribution shaft (61). The large-diameter flange portion (52) and the fourth flange portion (63) are fixedly connected by a plurality of fourth bolts (19).

3. The reliability test bench for oil dispenser according to claim 2 is characterized by: The body of the driving device (1) is fixedly connected to the top surface of the first support frame (7) by means of a plurality of fifth bolts (20); a first bearing member (13) is sleeved on the outer wall of one end of the intermediate shaft (4), and a second bearing member (14) is sleeved on the outer wall of the other end of the intermediate shaft (4); The bottom surface of the first bearing member (13) is fixedly connected to the top surface of the second support frame (8) by a plurality of sixth bolts (21), and the bottom surface of the second bearing member (14) is fixedly connected to the top surface of the third support frame (9) by a plurality of seventh bolts (22); the intermediate shaft (4) is arranged in the middle of the first bearing member (13) and the second bearing member (14), and rotates along the axis of the intermediate shaft (4); A third bearing member (15) is sleeved on the outer wall of the other end of the oil distribution shaft (61), and the bottom surface of the third bearing member (15) is fixedly connected to the top surface of the fourth support frame (10) by a plurality of eighth bolts (23); the oil distribution shaft (61) passes through the middle of the third bearing member (15) and extends forward, and rotates along the axis of the oil distribution shaft (61).

4. The reliability test bench for oil dispenser according to claim 1 is characterized by: The height-adjustable support frame comprises a support base (24), a pad (241) and bolts (242); the top surface of the support base (24) is an inclined surface; the pad (241) is connected to the top surface of the support base (24) via a plurality of bolts (242); a second angle (25) is formed between the top surface of the pad (241) and the horizontal plane; the second angle (25) is consistent with the first angle (12).

5. The reliability test bench for oil dispenser according to claim 4 is characterized by: The first support frame (7) and the second support frame (8) are of the same height, the second support frame (8) is higher than the third support frame (9), and the third support frame (9) is higher than the fourth support frame (10); the top surfaces of the second support frame (8) and the third support frame (9) are in a straight line.

6. A reliability test bench for an oil dispenser according to any one of claims 1 to 5, characterized in that: The power of the oil distributor (6) is 0-4000 kW·h.

7. The reliability test bench for oil dispenser according to any one of claims 1 to 5, characterized in that: The driving device (1) is a variable frequency motor, and the rotation speed of the driving device (1) is 0-500 r / min.

8. The reliability test bench for oil dispenser according to any one of claims 1 to 5, characterized in that: The sensor (11) comprises a temperature sensor, a pressure sensor, a vibration sensor and a flow sensor.

9. A test method for a fuel dispenser reliability test bench according to any one of claims 1 to 5, characterized in that: The test method comprises the following steps: Step 1: Start the driving device (1), wherein the driving device (1) drives the first coupling (2), the universal coupling (3) and the second coupling (26) to rotate, and the rotation of the second coupling (26) drives the intermediate shaft (4), the flange coupling (5) and the oil distributor (6) to rotate; Step 2: preheat the test bench; set the adjustable oil pressure to the highest value, gradually increase the speed, and run for a certain period of time until the oil temperature and leakage flow rate rise to the values ​​during normal operation, record the data of the sensor (11), and record the oil temperature and leakage flow rate; Step 3, performing a distance adjustment simulation test on the oil distributor preset under different working conditions; the oil distributor is preset into several groups, different speeds and distance adjustment oil pressures are set, the speed is ≤ the theoretical maximum speed, and the operation is performed for a certain time, and the temperature and leakage flow values ​​reached by the distance adjustment under different speeds and distance adjustment oil pressures are recorded, and the sensor (11) data is recorded; the speed is inversely proportional to the distance adjustment oil pressure; Step 4: Test the running stability of the simulated oil distributor under extreme working conditions; set the speed of the oil distributor to the theoretical maximum speed, set the oil pressure to 0, run for a certain period of time, observe the oil temperature change, and the subsequent steps of the operation are any of the following: The first method: if the oil temperature changes stably and the oil temperature change range is within ±2 degrees, then continue to increase the speed for at least one operation until the actual maximum speed of the oil distributor is reached, and record the data of the sensor (11), the oil temperature and the leakage flow; The second method: if the oil temperature is unstable and the oil temperature variation is outside ±2 degrees, continue to run at the current speed until the oil temperature changes steadily, then continue to increase the speed for at least one more time until the actual maximum speed of the oil distributor is reached, and record the data of the sensor (11), the oil temperature and the leakage flow.

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