A performance testing device and method for an oil distributor for an adjustable pitch full-rotation mechanism

Abstract

The present invention discloses a performance test device and method for an oil distributor for an adjustable pitch full-rotation mechanism, which specifically relates to the technical field of testing equipment, and aims to solve the problems of the lack of a device and method for pre-performance testing of an oil distributor in the prior art, and includes a power unit for driving the oil distributor to operate under simulated working conditions; a test housing for installing the oil distributor, the test housing being provided with an oil injection assembly and an oil discharge assembly; the output end of the test motor is connected to one end of a rotary shaft, the other end of the rotary shaft passes through the test housing and is connected to the rotary sleeve, and the A oil port and the B oil port are both connected to the oil injection assembly through an oil pipe. The present invention can effectively realize the actual working condition simulation and performance testing of the oil distributor in advance, and reduce the occurrence of faults during actual use.

Description

Technical Field

[0001] The invention relates to a performance testing device and method for an oil distributor for an adjustable pitch full-rotation mechanism, belonging to the technical field of testing equipment. Background Art

[0002] The adjustable pitch full-turn mechanism is a main propulsion device that adjusts the pitch of the propeller blades to switch the power size during the ship's travel. It consists of a hub assembly, internal and external oil pipes, an oil distributor assembly, a feedback mechanism assembly, etc. Among them, the structure of the oil distributor assembly is as follows Figure 1 As shown, Figure 1 The main components of the oil distributor are shown in the figure. The oil distributor is installed on the stern shaft and bearing seat of the full-rotating propeller. It is responsible for delivering hydraulic oil to the forward and reverse oil circuits, and at the same time it also rotates with the stern shaft.

[0003] The working principle of the oil distributor assembly is that the rotating sleeve rotates in the oil inlet ring. There is a certain gap between the oil inlet ring and the rotating sleeve. This gap controls the amount of oil delivered. High-pressure oil is delivered to the oil hole of the oil inlet ring through the oil distribution shell and then enters the pitch adjustment system, thereby realizing the pitch change of the blade.

[0004] Therefore, the oil distributor, as the hydraulic oil delivery device of the adjustable pitch full-rotation mechanism, is very important for the normal operation of the adjustable pitch full-rotation mechanism. Therefore, it is necessary to conduct a separate test and verification on it in advance. The amount of leakage will directly affect the pitch adjustment speed, and in severe cases it may even cause the propeller to lock. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a performance testing device and method for an oil distributor for an adjustable pitch full-rotation mechanism, which can effectively simulate the actual working conditions and perform performance testing on the oil distributor in advance, thereby reducing the occurrence of faults during actual use.

[0006] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0007] On the one hand, the present invention provides a performance testing device for an oil distributor for an adjustable pitch full-rotation mechanism, wherein the oil distributor comprises a rotary sleeve, an oil inlet ring and an oil distribution shell, wherein the oil distribution shell is provided with an A oil port and a B oil port, and the performance testing device comprises:

[0008] A power unit for driving the oil distributor to operate under simulated working conditions;

[0009] A test housing for mounting the oil distributor, the test housing being provided with an oil filling assembly for filling oil into the test housing and into the oil distribution housing, and the test housing being further provided with an oil drain assembly for draining the hydraulic oil in the test housing; when the performance test of the oil distributor is performed, the oil filling assembly is further connected with a measuring unit, the measuring unit being used to measure the oil leakage of the oil distributor;

[0010] The output end of the power unit is connected to one end of the rotary shaft, the other end of the rotary shaft extends into the test housing and is connected to the rotary sleeve, and the A oil port and the B oil port are respectively connected to the oil injection assembly through oil pipes.

[0011] Optionally, a transition plate is connected to the inner wall of the power unit on one side close to the test motor, and a sealing plate is provided on the outer wall of the power unit on one side, and the oil distributor is arranged on the transition plate.

[0012] Optionally, the oil distributor is connected to the transition plate by bolts, the transition plate is connected to the inner wall of the test housing by bolts, and the sealing plate is connected to the outer wall of the test housing by bolts;

[0013] The sealing plate is provided with a through hole, the through hole is used for passing the rotary shaft, and a rotary oil seal is arranged in the through hole.

[0014] Optionally, the oil filling assembly includes an oil port and an oil filling cover plate, an opening is provided above the test shell, the opening is connected to the oil filling cover plate by bolts, and the oil port is provided on the oil filling cover plate.

[0015] The oil port includes a test port and a working oil port, the test port includes a first port and a second port, the working oil port includes a third oil port and a fourth oil port, one of the first port and the second port is used to inject gas into the test housing and then connect to a measuring unit through an external pipeline after the gas injection is completed, or to inject oil and then connect to a measuring unit through an external pipeline after the oil injection is completed, the measuring unit includes a pressure gauge or a measuring cylinder, the pressure gauge is used to measure the air pressure in the housing, and the measuring cylinder is used to measure the oil leakage of the oil distributor; one of the first port and the second port is used as a pressure equalizing port when injecting oil into the test housing and when draining the hydraulic oil in the test housing;

[0016] The third oil port and the fourth oil port are used to provide hydraulic oil for the forward and reverse oil circuits of the oil distributor, respectively, and are respectively connected to oil pipes internally and externally to a hydraulic station. The other ends of the oil pipes are respectively connected to the A oil port and the B oil port. The hydraulic station is used to control the oil pipe passage.

[0017] The oil drain assembly is arranged at the bottom of the test housing, and comprises an oil outlet and an oil drain plug, wherein the oil drain plug is arranged in the oil outlet.

[0018] Optionally, both the A oil port and the B oil port are provided with an interface plate, the interface plate is provided with an oil hole corresponding to the oil port, a pipe joint is provided in the oil hole, and the pipe joint is connected to the oil pipe.

[0019] Optionally, an opening is provided on a side of the test housing away from the power unit, and an observation cover is connected to the opening by bolts, through which the oil level in the test housing and the test conditions during the test can be observed.

[0020] Optionally, the power unit includes a test motor, which is arranged on a motor stand, and the test housing is arranged on a housing stand, the output end of the test motor is connected to a motor coupling, one end of the rotating shaft is connected to a rotating shaft coupling, and the motor coupling is connected to the rotating shaft coupling.

[0021] On the other hand, the present invention provides a method for testing the working condition simulation performance of an oil distributor for an adjustable pitch full-rotation mechanism, the testing method being implemented by the working condition simulation performance testing device for an oil distributor for an adjustable pitch full-rotation mechanism as described in any one of the above items, and comprising:

[0022] Fill the test housing with hydraulic oil through the oil filling assembly, and after the hydraulic oil is filled, connect the first external pipe in the oil filling assembly to the measuring cylinder;

[0023] The hydraulic station pumps oil at set pressure to the A and B ports through the oil injection assembly;

[0024] Adjust the output speed of the power unit to reach the operating speed of the propeller to simulate the actual working state of the oil distributor;

[0025] Observe the change in oil volume detected by the measuring unit within a unit time. The hydraulic oil increment detected by the measuring unit is the leakage amount of the oil distributor within a unit time.

[0026] The leakage amount of the oil distributor per unit time is compared with a preset range. If the leakage amount of the oil distributor per unit time is within the preset range, the oil distributor is qualified, otherwise the oil distributor is unqualified.

[0027] Furthermore, before the test method begins, a sealing test needs to be performed on the test housing, and the sealing test includes:

[0028] Connect the first port to an external pressure gauge and the second port to an external hand pump;

[0029] Use a hand pump to pressurize the test shell, stop after a set time, and observe whether there is a pressure drop on the pressure gauge. If there is a pressure drop on the pressure gauge, the test shell is not sealed properly. If there is no pressure drop on the pressure gauge, the test shell is sealed properly.

[0030] Furthermore, the testing method also includes:

[0031] Dismantle the device and oil distributor;

[0032] Check whether the rotating sleeve and oil inlet ring in the oil distributor have abnormal wear. If there is no abnormal wear, the oil distributor is qualified.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The device of the present invention can simulate the performance of the oil distributor assembly during the pitch adjustment process of the propeller, and test the hydraulic oil leakage performance under different pressure states. The leakage data will affect whether the pitch adjustment function is normally implemented, thereby realizing early verification of the performance of the oil distributor, and can effectively reduce the probability of failure of the oil distributor during the use of the adjustable pitch full-rotation mechanism, thereby improving work efficiency and simplifying and facilitating operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of an oil distributor for an adjustable pitch full-rotation mechanism in an embodiment of the present invention;

[0036] Figure 2 It is a left-side structural schematic diagram of a working condition simulation performance testing device for an oil distributor for an adjustable pitch full-rotation mechanism in one embodiment of the present invention;

[0037] Figure 3 It is a right side structural schematic diagram of a working condition simulation performance testing device for an oil distributor for an adjustable pitch full-rotation mechanism in one embodiment of the present invention;

[0038] Figure 4 for Figure 2 A schematic diagram of the partially enlarged structure at C in the middle;

[0039] Figure 5 for Figure 2 Schematic diagram of the local enlarged structure at point D in the middle.

[0040] Figure 6 This is a top view of the oil filling cover.

[0041] In the figure: 1. oil distribution shell; 2. oil inlet ring; 3. rotating sleeve; 4. oil port A; 5. oil port B; 6. oil distributor; 7. test motor; 8. motor stand; 9. motor coupling; 10. rotary shaft coupling; 11. rotary shaft; 12. test shell; 13. shell stand; 14. oil filling assembly; 141. first port; 142. second port; 143. third oil port; 144. fourth oil port; 145. oil filling cover; 146. sealing plug; 151. first oil pipe; 152. second oil pipe; 16. interface plate; 17. pipe joint; 18. oil drain assembly; 181. oil outlet; 182. oil drain plug; 19. observation cover; 20. transition plate; 21. sealing plate; 22. rotary oil seal; 23. sealing ring; 24. sealing cover. DETAILED DESCRIPTION

[0042] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0045] Embodiment 1:

[0046] The embodiment of the present invention provides a working condition simulation performance test device for an oil distributor for an adjustable pitch full-rotation mechanism, which is used to simulate the working condition of the oil distributor for an adjustable pitch full-rotation mechanism and test its performance, thereby judging whether the oil distributor is qualified. Figure 1 As shown, it includes a rotating sleeve 3, an oil inlet ring 2 and an oil distribution housing 1, and the oil distribution housing 1 is provided with an A oil port 4 and a B oil port 5.

[0047] like Figure 2 and Figure 3 As shown, the working condition simulation performance test device of the oil distributor for the adjustable pitch full-rotation mechanism includes a test housing 12 and a power unit for driving the oil distributor 6 to operate under simulated working conditions. In this embodiment, the power unit includes a test motor 7. The test housing 12 is arranged on a housing stand 13. The test housing 12 is a rectangular parallelepiped with five closed sides, and an unclosed side is provided with an opening. The oil distributor 6 is arranged in the test housing 12.

[0048] like Figure 4 As shown, the test motor 7 is arranged on the motor stand 8, the output end of the test motor 7 is connected to one end of the rotary shaft 11, and the other end of the rotary shaft 11 extends into the test housing 12 and is connected to the rotary sleeve 3. In this embodiment, the output end of the test motor 7 is connected to the motor coupling 9, one end of the rotary shaft 11 is connected to the rotary shaft coupling 10, and the motor coupling 9 and the rotary shaft coupling 10 are connected to realize the connection between the test motor 7 and the rotary shaft 11. In some embodiments, in order to further realize the connection and fastening of the rotary shaft coupling 10 and the rotary shaft 11, the rotary shaft coupling 10 and the rotary shaft 11 are also connected by bolts.

[0049] A transition plate 20 is connected to the inner wall of the test housing 12 on one side close to the test motor 7 (i.e., the unclosed side), and the oil distributor 6 is arranged on the transition plate 20. The function of the transition plate 20 is that the structure of the oil distributor 6 varies according to the model, so the test housing 12 cannot be suitable for all types of oil distributors 6. Therefore, the transition plate 20 is provided to facilitate fixing various types of oil distributors 6 in the test housing 12.

[0050] To ensure the sealing of the test housing 12, a sealing plate 21 is connected to the outer wall of the test housing 12 on one side (i.e., the unsealed side) close to the test motor 7. In this embodiment, the oil distributor 6 is connected to the transition plate 20 by bolts, the transition plate 20 is connected to the inner wall of the test housing 12 by bolts, and the sealing plate 21 is connected to the outer wall of the test housing 12 by bolts, but it is not limited thereto, and other connection methods that can realize the sequential fixing of the sealing plate 21, the test housing 12, and the transition plate 20 should also be possible.

[0051] A through hole is provided on the sealing plate 21, and the rotating shaft 11 is inserted into the through hole and extends to the inside of the test shell 12 to be connected with the rotating sleeve 3. To further ensure the sealing performance, a rotating oil seal 22 is provided in the circumferential direction of the through hole. The specifications of the rotating oil seal are: Ø60XØ75X8, and the cross-section form is R01-P of the Aiko seal, which can ensure the sealing effect during operation.

[0052] The test housing 12 is provided with an oil filling assembly 14 for filling oil into the test housing 12 and the oil distribution housing, and an oil drain assembly 18 for draining the hydraulic oil in the test housing 12. The oil filling assembly 14 is arranged above the test housing 12, and includes an oil port and an oil filling cover plate 145. An opening is provided above the test housing 12, and the opening is sealed by the oil filling cover plate 145. The oil filling cover plate 145 is fixed to the test housing 12 by bolts.

[0053] like Figure 5 and Figure 6 As shown, the oil port is arranged on the oil filling cover plate 145, which includes a test port and a working oil port. The test port includes a first port 141 and a second port 142, and the working oil port includes a third oil port 143 and a fourth oil port 144. One of the first port 141 and the second port 142 is used to inject gas into the test housing 12 and connect to the measuring unit through an external pipeline after the gas injection is completed, or to inject oil and connect to the measuring unit through an external pipeline after the oil injection is completed. In this embodiment, the measuring unit is a barometer or a measuring cylinder, which is used to measure the sealing of the housing or the oil leakage of the oil distributor 6. One of the first port 141 and the second port 142 is used as a pressure equalizing port when injecting oil into the test housing 12 and when draining the hydraulic oil in the test housing 12. The purpose of providing the pressure equalizing port is that when oil is injected into the test shell 12, the air in the test shell 12 needs to be discharged from the first port 141 or the second port 142, otherwise, the oil cannot be injected smoothly; when the oil is discharged, the air needs to enter the test shell 12 through the first port 141 or the second port 142, otherwise, negative pressure may be formed in the test shell 12, making it difficult to drain the oil in the test shell 12.

[0054] The third oil port 143 and the fourth oil port 144 are respectively used to provide hydraulic oil for the forward and reverse oil circuits of the oil distributor 6. The third oil port 143 and the fourth oil port 144 are respectively connected through the first oil pipe 151 and the second oil pipe 152. The first oil pipe 151 and the second oil pipe 152 are high-pressure rubber hoses. The first oil pipe 151 is connected to the A oil port 4, and the second oil pipe 152 is connected to the B oil port 5.

[0055] In this embodiment, all the test ports and working oil ports are equipped with sealing screw plugs 146 .

[0056] The oil drain assembly 18 is disposed at the bottom of the test housing 12, and includes an oil outlet 181 and an oil drain plug 182. The oil drain plug 182 is disposed in the oil outlet 181. After the test is completed, the hydraulic oil in the test housing 12 is drained through the oil outlet 181.

[0057] In some embodiments, in order to make the first oil pipe 151 and the second oil pipe 152 suitable for multiple types of oil distributors, an interface plate 16 is provided at the A oil port 4 and the B oil port 5, and the interface plate 16 is provided with oil holes corresponding to the A oil port 4 and the B oil port 5, and a pipe joint 17 is provided in the oil hole, and the pipe joint 17 is connected to the first oil pipe 151 and the second oil pipe 152 respectively.

[0058] In some embodiments, to ensure that the oil can only leak from between the oil inlet ring and the rotating sleeve, a sealing cover plate 24 is provided at the front end of the oil distributor.

[0059] In some embodiments, the test housing 12 is provided with an opening on one side away from the test motor 7, and the opening is connected with an observation cover 19 by bolts, and the oil level in the test housing 12 and the test conditions during the test can be observed through the observation cover 19. In order to further ensure the overall sealing of the test housing 12, a sealing ring 23 is provided between the observation cover 19 and the opening circumference.

[0060] Embodiment 2:

[0061] This embodiment also provides a testing method, which is implemented by the working condition simulation performance testing device for the oil distributor for the adjustable pitch full-rotation mechanism described in Example 1.

[0062] Before the test method begins, the test housing 12 needs to be tested for sealing, and the A oil port and the B oil port are sealed using corresponding screw plugs and copper sealing gaskets; the sealing test includes: connecting the first port 141 to an external pressure gauge, and connecting the second port 142 to an external hand pump;

[0063] Use a hand pump to pressurize the test shell 12, stop after a set time, and observe whether there is a pressure drop on the pressure gauge. If there is a pressure drop on the pressure gauge, the sealing of the test shell 12 is unqualified. If there is no pressure drop on the pressure gauge, the sealing of the test shell 12 is qualified.

[0064] Specifically include:

[0065] Screw the tooling joint onto the first port, connect the tooling joint to the 7bar compressed air in the factory, and install a pressure gauge with a range of 1.6Mpa on the second port.

[0066] Inflate the cavity and stop when the pressure gauge displays a value of 0.1MPa. Wait for 20 minutes and observe whether the pressure on the pressure gauge drops.

[0067] If there is no pressure drop, it means that the tooling and parts before this test are installed correctly and the air tightness verification is qualified. Subsequent tests can be continued.

[0068] After the sealing meets the conditions, the oil distributor 6 is tested. The specific test method is as follows:

[0069] Fill the test housing 12 with oil through the first port 141 or the second port 142, and connect the first port 141 external pipe to the measuring cylinder after the oil is filled. Further, ensure that the oil is about to overflow from the oil filling assembly, and the liquid level is preferably 1 mm from the upper end surface of the oil filling assembly.

[0070] The hydraulic station pumps oil at a set pressure to the A oil port 4 and the B oil port 5 through the third oil port 143 or the fourth oil port 144 through the oil pipe.

[0071] First, conduct an operation test of the oil distributor under the main oil port (i.e., oil port A) to check that all parts of the process equipment are fully assembled, the bolts are tightened, and the surface is cleaned to ensure there is no abnormal oil seepage or leakage.

[0072] Turn on the test motor 7 and run it at 1 / 3 rated speed for 20 minutes. Observe whether the test device has abnormal noise, oil leakage, abnormal temperature rise, etc. If not, continue the test.

[0073] During this period, the leakage volume is measured, and a temperature gun is used to detect the oil temperature of the hydraulic oil and test leakage oil of the tooling pump station. The leakage oil temperature is not allowed to be higher than 65°C.

[0074] Adjust the motor speed to 2 / 3 of the rated speed for a running test, and continue to observe whether any abnormal situation occurs. The running time is 15 minutes, during which temperature measurement and leakage measurement are carried out; adjust the motor speed to the rated speed of 300rpm and then carry out a running test for 45 minutes, observe whether any abnormal situation occurs, during which temperature measurement and leakage measurement are carried out.

[0075] Follow the above steps for one cycle and finally extend the test time at rated speed by 15 minutes. This 3-hour test is the oil distributor leakage test under the normal vehicle oil circuit.

[0076] Carry out the oil distributor leakage test on the reverse oil circuit according to the test steps of the forward oil circuit, also for 3 hours.

[0077] If the oil temperature and leakage rate are qualified, the leakage test for this item is qualified.

[0078] The oil temperature limit is 65°C, and the hydraulic oil leakage is 1.0-1.3L / min to be qualified.

[0079] Observe the change in the volume of oil in the measuring cylinder per unit time. The increase in the oil volume in the measuring cylinder is the leakage amount of the oil distributor 6 per unit time.

[0080] The leakage amount of the oil distributor 6 per unit time is compared with a preset range. If the leakage amount of the oil distributor 6 per unit time is within the preset range, the oil distributor 6 is qualified; otherwise, the oil distributor 6 is unqualified.

[0081] After the test, the device and the oil distributor 6 are disassembled;

[0082] Check whether the rotating sleeve 3 and the oil inlet ring 2 in the oil distributor 6 have abnormal wear. If there is no abnormal wear, the oil distributor 6 is qualified.

[0083] The test method of the present invention can find that when the oil distributor leaks too little, the friction is too large, the heat increases, and the lubrication and cooling effects are affected. When the lubricating oil temperature of the whole machine exceeds the upper limit of 80°C, it will affect the normal operation of various parts and even the risk of propeller shaft locking, increasing the safety hazard.

[0084] When the oil distributor leaks too much, the pitch adjustment speed will be too slow, or even the pitch cannot be changed, which will affect the navigation of the ship.

[0085] Therefore, it is very necessary to test the oil distributor before installation. The present invention overcomes the problem that if the oil distributor fails during the whole machine test run, it will be troublesome to disassemble, with serious waste of construction time and manpower, and the product will also have the risk of damage.

[0086] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for testing the performance of an oil distributor for an adjustable pitch full-rotation mechanism, wherein the oil distributor (6) comprises a rotary sleeve (3), an oil inlet ring (2) and an oil distributor housing (1), wherein the oil distributor housing is provided with an A oil port (4) and a B oil port (5), and wherein: The testing method is implemented based on a performance testing device for an oil dispenser for an adjustable pitch full-rotation mechanism, and the performance testing device for an oil dispenser for an adjustable pitch full-rotation mechanism comprises: A power unit for driving the oil distributor (6) to operate under simulated working conditions; A test housing (12) for mounting the oil distributor (6), the test housing (12) being provided with an oil injection assembly (14) for injecting oil into the test housing (12) and into the oil distribution housing (1), the oil injection assembly (14) comprising an oil port and an oil injection cover plate (145), an opening being provided above the test housing (12), the oil injection cover plate (145) being connected to the opening in a circumferential direction by bolts, and the oil port being provided on the oil injection cover plate (145); The oil port comprises a test port and a working oil port, the test port comprises a first port (141) and a second port (142), and the working oil port comprises a third oil port (143) and a fourth oil port (144); One of the first port (141) and the second port (142) is used to inject gas into the test housing (12) and then connect to a measuring unit through an external pipeline after the gas injection is completed, or to inject oil into the test housing (12) and then connect to a measuring unit through an external pipeline after the oil injection is completed, wherein the measuring unit comprises a pressure gauge or a measuring cylinder, wherein the pressure gauge is used to measure the air pressure in the housing, and the measuring cylinder is used to measure the oil leakage of the oil distributor (6); The other of the first port (141) and the second port (142) is used as a pressure equalizing port when filling oil into the test housing (12) and when draining the hydraulic oil in the test housing (12); The third oil port (143) and the fourth oil port (144) are used to provide hydraulic oil for the forward and reverse oil circuits of the oil distributor (6), respectively, and are internally connected to oil pipes and externally connected to a hydraulic station. The other ends of the oil pipes are connected to the A oil port (4) and the B oil port (5), respectively. The hydraulic station is used to control the oil pipe passage. The test housing (12) is further provided with an oil drain assembly (18) for draining the hydraulic oil in the test housing (12); the oil drain assembly (18) is arranged at the bottom of the test housing (12), and comprises an oil outlet (181) and an oil drain screw plug (182); the oil drain screw plug (182) is arranged in the oil outlet (181); When the performance test is performed on the oil distributor (6), the oil injection assembly is also connected to a measuring unit, and the measuring unit is used to measure the oil leakage of the oil distributor; The output end of the power unit is connected to one end of a rotary shaft (11), the other end of the rotary shaft (11) extends into the test housing (12) and is connected to the rotary sleeve (3), and the oil port A and the oil port B are respectively connected to an oil injection assembly (14) via oil pipes; The performance test method of the oil distributor for the adjustable pitch full-rotation mechanism includes: Filling the test housing with hydraulic oil through the oil filling assembly (14), and after the hydraulic oil is filled, connecting the first port in the oil filling assembly (14) to the measuring unit through an external pipeline; The hydraulic station pumps oil at different set pressures to the A oil port (4) or the B oil port (5) through the oil injection assembly (14); Adjust the output speed of the power unit to reach the operating speed of the propeller to simulate the actual working state of the oil distributor (6); Observe the change in volume of the hydraulic oil detected by the measuring unit within a unit time, the hydraulic oil increment detected by the measuring unit being the leakage amount of the oil distributor (6) within a unit time; Comparing the leakage amount of the oil distributor (6) per unit time with a preset range; if the leakage amount of the oil distributor (6) per unit time is within the preset range, the oil distributor is qualified; otherwise, the oil distributor is unqualified; Before the test begins, a sealing test is performed on the test housing (12), wherein the sealing test includes: The first port (141) is connected to an external pressure gauge, and the second port (142) is connected to an external hand pump; Use a hand pump to pressurize the test shell (12), stop after a set time, and observe whether there is a pressure drop on the pressure gauge. If there is a pressure drop on the pressure gauge, the test shell is not sealed properly. If there is no pressure drop on the pressure gauge, the test shell is sealed properly.

2. The performance testing method of the oil distributor for the adjustable pitch full-rotation mechanism according to claim 1 is characterized in that: A transition plate (20) is connected to an inner wall of the test housing (12) on one side close to the power unit, and a sealing plate (21) is provided on an outer wall on one side close to the power unit. The oil distributor (6) is arranged on the transition plate (20).

3. The performance testing method of the oil distributor for the adjustable pitch full-rotation mechanism according to claim 2 is characterized in that: The oil distributor (6) is connected to the transition plate (20) via bolts, the transition plate (20) is connected to the inner wall of the test housing (12) via bolts, and the sealing plate (21) is connected to the outer wall of the test housing (12) via bolts; The sealing plate (21) is provided with a through hole, the through hole being used to pass the rotary shaft (11), and a rotary oil seal (22) is provided in the through hole.

4. The performance testing method of the oil distributor for the adjustable pitch full-rotation mechanism according to claim 1 is characterized in that: The A oil port (4) and the B oil port (5) are both provided with an interface plate (16), the interface plate (16) being provided with oil holes corresponding to the oil ports, the oil holes being provided with a pipe joint (17), and the pipe joint (17) being connected to an oil pipe.

5. The performance testing method of the oil distributor for the adjustable pitch full-rotation mechanism according to claim 1 is characterized in that: An opening is provided on a side of the test housing (12) away from the power unit, and an observation cover plate (19) is connected to the opening via bolts. The observation cover plate (19) is used to observe the oil level in the test housing (12) and the test conditions during the test.

6. The performance testing method of the oil distributor for the adjustable pitch full-rotation mechanism according to claim 1 is characterized in that: The power unit comprises a test motor (7), the test motor (7) is arranged on a motor stand (8), the test housing (12) is arranged on a housing stand (13), the output end of the test motor (7) is connected to a motor coupling (9), one end of the rotary shaft (11) is connected to a rotary shaft coupling (10), and the motor coupling (9) and the rotary shaft coupling (10) are connected.

7. The performance testing method of the oil distributor for the adjustable pitch full-rotation mechanism according to claim 1 is characterized in that: The test method also includes: Disassemble the device and the oil distributor (6); Check whether the rotating sleeve (3) and the oil inlet ring (2) in the oil distributor (6) have abnormal wear. If there is no abnormal wear, the oil distributor is qualified.

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