Pressure-resistant test device for hydraulic accessories

Abstract

The utility model discloses a pressure test device for a hydraulic accessory, which belongs to the field of test devices and comprises a test bench, a hydraulic control console fixedly connected to the top end of the test bench, an oil test component and a gas test component which are respectively arranged on two sides in the test bench, and an operating console arranged at the top end of the test bench, a fixing seat for fixing the hydraulic accessory is arranged at the top end of the operation table; a rotary disc fixedly connected with the bottom end of the fixing base is rotationally embedded in the top end of the operation table, and a positioning assembly used for locking the position of the rotary disc is arranged at the bottom end of the operation table. In order to improve the detection efficiency of a large batch of hydraulic accessories, the number of the fixed seats is two. The rotatable turntable can be used for rotating and turning around the fixed seat, so that the hydraulic accessory can conveniently turn around and then carry out gas detection or oil detection after completing oil detection or gas detection, the hydraulic accessory is prevented from being disassembled, turned around and mounted back and forth to complete oil detection and gas detection, and a large amount of time can be saved while the detection steps are simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a hydraulic accessory pressure resistance testing device. Background Art

[0002] The accessories in the helicopter hydraulic system are key components to ensure the normal operation of the system. They are responsible for the control, regulation, protection of the system, and the maintenance of the cleanliness of the hydraulic oil and suitable working conditions. Hydraulic accessories need to be tested for oil and gas pressure resistance before leaving the factory.

[0003] After investigation, the Chinese invention patent with publication number CN117927536A discloses a hydraulic cylinder pressure test device and its test method. The hydraulic cylinder pressure test device and its test method, by replacing the connecting pipe of the cylinder body, the cylinder body is tested for oil filling and gas filling, and the cylinder is driven to move by the moving plate. During this process, the electric telescopic rod will drive the extrusion plate to move, and the data generated on the outside of the data scale plate after the extrusion plate moves is used to judge the pressure degree and oil leakage of the cylinder body during the gas filling process. By setting the adjustment plate, during the movement of the adjustment plate, the external environment required in different test methods is met, and at the same time, the connection between the two test environments is blocked by adjusting the rack, and the extrusion plate and the data scale plate are used to meet the same degree of pressure under different test environments, thereby meeting the test effect of the cylinder body, and the method of use is simple. After searching, it was found that in order to avoid bending of the connecting pipe at the connection port of the hydraulic accessory during oil testing and air testing of the hydraulic accessories, which would affect the accuracy of the detection, it was necessary to align the connection port of the hydraulic accessory with the connection port of the oil test or air test, and then the hydraulic accessory needed to be disassembled back and forth and turned around before being installed, which would reduce the detection efficiency and waste a lot of time.

[0004] Therefore, the utility model provides a hydraulic accessory pressure test device to solve the above problems. Utility Model Content

[0005] The utility model provides a hydraulic accessory pressure test device, which aims to solve the existing problems proposed in the background technology, that in order to avoid bending of the connecting pipe at the hydraulic accessory connecting port affecting the accuracy of detection, the connecting port of the hydraulic accessory needs to be aligned with the connecting port of the oil test or the gas test, and then the hydraulic accessory needs to be disassembled and turned back and forth before installation, which will reduce the detection efficiency and waste a lot of time.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic accessory pressure test device, comprising a test bench, a hydraulic control console fixedly connected to the top of the test bench, an oil test component and a gas test component respectively arranged on both sides of the test bench, and an operating table arranged on the top of the test bench, wherein a fixing seat for fixing the hydraulic accessory is arranged on the top of the operating table; a plurality of T-slots are provided on the fixing seat, and T-nuts are arranged in the T-slots;

[0007] The difference from the existing test device is that: a turntable fixedly connected to the bottom of the fixed seat is rotatably embedded at the top of the operating table, and a positioning component for locking the position of the turntable is arranged at the bottom of the operating table; the fixed seat can be rotated and turned by the rotatable turntable, which is convenient for turning around after the hydraulic accessory completes the oil test or the gas test and then performing the gas test or the oil test, avoiding the need to disassemble and reinstall the hydraulic accessory to complete the oil test and the gas test, simplifying the detection steps and saving a lot of time;

[0008] Among them, in order to improve the detection efficiency of large quantities of hydraulic accessories, two fixing seats are provided, and the two fixing seats are symmetrically arranged along the axis of the turntable; the two fixing seats can be used to simultaneously perform oil testing and gas testing on two hydraulic accessories, respectively, which improves the detection efficiency of large quantities of hydraulic accessories and can also save a lot of time.

[0009] Preferably, the positioning assembly includes a U-shaped frame fixed to the bottom end of the turntable, a positioning rod that passes through the top end of the operating table is slidably inserted into the U-shaped frame, the external fixed sleeve of the positioning rod is provided with a fixing ring that contacts the bottom end of the operating table, a tightening spring is sleeved on the outside of the positioning rod and located between the bottom end of the fixing ring and the inside of the U-shaped frame, and the top of the turntable is symmetrically provided with positioning grooves used in conjunction with the positioning rod; wherein the tightening spring is initially in a state of extrusion and force accumulation, and by utilizing the plug-in cooperation between the positioning rod and the positioning groove, after the turntable rotates 180°, the next positioning groove will correspond to the positioning rod, and then the positioning rod will be inserted back into the positioning groove under the action of the spring elastic force, thereby completing the locking of the turntable.

[0010] Preferably, a guide groove is provided at the front end of the test bench, and an auxiliary rod fixedly connected to the bottom end of the positioning rod is slidably sleeved inside the guide groove.

[0011] Preferably, the oil measuring assembly comprises a hydraulic oil inlet valve and a hydraulic oil outlet valve both connected to the hydraulic oil tank.

[0012] Preferably, the gas testing component comprises an air pump and a test valve, the output end of the air pump is fixedly connected to an air outlet valve, and the air outlet valve and the test valve are both connected to a pressure test gauge for testing the gas pressure.

[0013] Preferably, the test device also includes a collecting component arranged on the operating table, the collecting component includes a collecting box, both sides of the front side wall of the top end of the operating table are fitted with clamping plates fixedly connected to the bottom end of the collecting box, the bottom end of the collecting box is fixedly connected to a guide plate in contact with the inner wall of the rear side wall of the top end of the operating table, and both ends of the operating table are fixedly connected with baffles for limiting the position of the collecting box; the collecting box can be used to collect oil leaked from the hydraulic accessories during the oil testing process, thereby preventing the oil testing or gas testing efficiency from being reduced and preventing the oil from dripping onto the fixed seat, which is difficult to clean due to the small spacing between the slots on the fixed seat.

[0014] Beneficial effects:

[0015] The test device is provided with a turntable fixedly connected to the bottom of the fixed seat on the operating table. The fixed seat can be rotated and turned by using the rotatable turntable, which is convenient for turning around and then performing gas testing or oil testing after the hydraulic accessories have completed oil testing or gas testing, avoiding the need to disassemble and install the hydraulic accessories back and forth to complete oil testing and gas testing, simplifying the testing steps and saving a lot of time.

[0016] The test device can perform oil test and gas test on two hydraulic accessories at the same time by using two fixed seats, which can improve the efficiency of testing large quantities of hydraulic accessories and save a lot of time.

[0017] The test device can collect the oil leaked from the hydraulic accessories during the oil testing process by means of a collection assembly and a collection box, thereby preventing the oil from dropping on the fixing seat due to the small spacing between the slots on the fixing seat and making it difficult to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a hydraulic accessory pressure test device;

[0019] Figure 2 It is a schematic diagram of the structure of the gas measurement component;

[0020] Figure 3 for Figure 1 Bottom view of the middle structure;

[0021] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0022] Figure 5 A schematic diagram of the collection component structure.

[0023] In the figure:

[0024] 1. Test bench; 2. Hydraulic control console; 3. Oil measuring assembly; 31. Hydraulic oil inlet valve; 32. Hydraulic oil outlet valve; 4. Air measuring assembly; 41. Air pump; 42. Air outlet valve; 43. Test valve; 44. Pressure test gauge; 5. Operating table; 6. Fixed seat; 7. Turntable; 8. Positioning assembly; 81. U-shaped frame; 82. Positioning rod; 83. Fixed ring; 84. Fastening spring; 85. Auxiliary rod; 86. Guide groove; 9. Collection assembly; 91. Collection box; 92. Clamping plate; 93. Guide plate; 94. Baffle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides a hydraulic accessory pressure test device, such as Figure 1-5 As shown, the test device comprises a test bench 1, a hydraulic control console 2 fixedly connected to the top of the test bench 1, an oil test component 3 and a gas test component 4 respectively arranged on both sides of the test bench 1, and an operating table 5 arranged on the top of the test bench 1, and a fixing seat 6 for fixing the hydraulic accessories is arranged on the top of the operating table 5; a plurality of T-slots are opened on the fixing seat 6, and T-nuts are arranged in the T-slots;

[0027] A turntable 7 fixedly connected to the bottom of the fixed seat 6 is rotatably embedded at the top of the operating table 5, and a positioning assembly 8 for locking the position of the turntable 7 is provided at the bottom of the operating table 5; the fixed seat 6 can be rotated and turned by the rotatable turntable 7, which is convenient for turning around after the hydraulic accessory completes the oil test or gas test and then performing the gas test or oil test, avoiding the need to disassemble and reinstall the hydraulic accessory back and forth to complete the oil test and gas test, simplifying the detection steps and saving a lot of time;

[0028] Among them, in order to improve the detection efficiency of large quantities of hydraulic accessories, two fixed seats 6 are provided, and the two fixed seats 6 are symmetrically arranged along the axis of the turntable 7; the two fixed seats 6 can be used to simultaneously perform oil testing and gas testing on two hydraulic accessories, respectively, which improves the detection efficiency of large quantities of hydraulic accessories and can also save a lot of time.

[0029] When in use, first fix the hydraulic accessory on the fixing seat 6 by bolts, and then connect the hydraulic accessory with the oil testing component 3 or the gas testing component 4 through the pipeline, and then you can perform oil testing or gas testing on the hydraulic accessory. After the oil testing or gas testing is completed, remove the pipeline, and then push the fixing seat 6 to drive the turntable 7 to rotate axially on the top of the operating table 5, so that the turntable 7 drives the fixing seat 6 to rotate 180° and stops, and then connect the gas testing component 4 or the oil testing component 3 through the pipeline, and then perform gas testing or oil testing on the hydraulic accessory, avoiding the need to disassemble and reinstall the hydraulic accessory back and forth to complete the oil testing and gas testing, simplifying the detection steps and saving a lot of time.

[0030] Specifically, the positioning assembly 8 includes a U-shaped frame 81 fixed to the bottom end of the turntable 7, a positioning rod 82 that passes through the top end of the operating table 5 is slidably inserted in the U-shaped frame 81, the outer fixed sleeve of the positioning rod 82 is provided with a fixing ring 83 that contacts the bottom end of the operating table 5, and a fastening spring 84 is sleeved on the outside of the positioning rod 82 and located between the bottom end of the fixing ring 83 and the inside of the U-shaped frame 81, and the top end of the turntable 7 is symmetrically provided with a positioning groove used in conjunction with the positioning rod 82; wherein, the fastening spring 84 is initially in a state of extrusion force and force storage, and by utilizing the plug-in cooperation of the positioning rod 82 and the positioning groove, after the turntable 7 rotates 180°, the next positioning groove will correspond to the positioning rod 82, and then the positioning rod 82 will be inserted back into the positioning groove under the action of the spring elastic force, thereby completing the locking of the turntable 7;

[0031] Furthermore, a guide groove 86 is provided at the front end of the test bench 1, and an auxiliary rod 85 is slidably sleeved inside the guide groove 86 and fixedly connected to the bottom end of the positioning rod 82; the auxiliary rod 85 is used to conveniently drive the positioning rod 82 to move, and then conveniently contact the positioning rod 82 to lock the turntable 7, so as to conveniently drive the turntable 7 to rotate axially.

[0032] When in use, the auxiliary rod 85 drives the positioning rod 82 to move downward, and the positioning rod 82 drives the fixing ring 83 to move. While the fixing ring 83 moves, the tightening spring 84 is squeezed to contract and accumulate force. At the same time, the top of the positioning rod 82 moves out of the positioning groove, and then the turntable 7 can be axially rotated. When the turntable 7 is in the process of rotation, the auxiliary rod 85 is released. Under the action of the spring, the top of the positioning rod 82 always keeps in contact with the bottom end of the turntable 7. When the turntable 7 rotates 180°, the other positioning groove corresponds to the positioning rod 82, and then the positioning rod 82 is inserted into the inside of the positioning groove under the action of the spring.

[0033] Specifically, the oil measuring component 3 includes a hydraulic oil inlet valve 31 and a hydraulic oil outlet valve 32, both of which are connected to the hydraulic oil tank; a hydraulic pump is connected to the hydraulic oil outlet valve 32 and the hydraulic oil tank through a pipeline. When in use, the hydraulic oil inlet valve 31 and the hydraulic oil outlet valve 32 are connected to the hydraulic accessories through the pipeline.

[0034] Specifically, the gas testing component 4 includes an air pump 41 and a detection valve 43. The output end of the air pump 41 is fixedly connected to an air outlet valve 42. The air outlet valve 42 and the detection valve 43 are both connected to a pressure detection gauge 44 for detecting the gas pressure. When in use, the air outlet valve 42 and the detection valve 43 are connected to the hydraulic accessory through a pipeline, and the two pressure detection gauges 44 can detect whether the internal intake pressure and outlet pressure of the hydraulic accessory are consistent.

[0035] Refer to 1 and Attachment Figure 5 As shown, the test device also includes a collecting component 9 arranged on the operating table 5, and the collecting component 9 includes a collecting box 91. Both sides of the front side wall of the top of the operating table 5 are fitted with clamping plates 92 fixedly connected to the bottom end of the collecting box 91, and the bottom end of the collecting box 91 is fixedly connected to a guide plate 93 in contact with the inner wall of the rear side wall of the top of the operating table 5. Both ends of the operating table 5 are fixedly connected with a baffle 94 for limiting the position of the collecting box 91; the collecting box 91 can be used to collect the oil leaked from the hydraulic accessories during the oil testing process, so as to prevent the oil testing or gas testing efficiency from being reduced while preventing the oil from dripping on the fixing seat 6, which is difficult to clean due to the small spacing between the slots on the fixing seat 6.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic accessory pressure test device, comprising a test bench (1), a hydraulic control console (2) fixedly connected to the top of the test bench (1), an oil test component (3) and a gas test component (4) respectively arranged on both sides of the test bench (1), and an operating table (5) arranged at the top of the test bench (1), wherein a fixing seat (6) for fixing the hydraulic accessory is arranged at the top of the operating table (5); Features: A turntable (7) fixedly connected to the bottom end of the fixing seat (6) is rotatably embedded at the top end of the operating table (5), and a positioning component (8) for locking the position of the turntable (7) is provided at the bottom end of the operating table (5); There are two fixed seats (6), and the two fixed seats (6) are symmetrically arranged along the axis of the rotating disk (7).

2. The hydraulic accessory pressure test device according to claim 1, characterized in that: The positioning assembly (8) comprises a U-shaped frame (81) fixed to the bottom end of the rotating disk (7), a positioning rod (82) penetrating the top end of the operating table (5) being slidably inserted in the U-shaped frame (81), a fixing ring (83) in contact with the bottom end of the operating table (5) being fixedly sleeved outside the positioning rod (82), a fastening spring (84) being sleeved outside the positioning rod (82) and located between the bottom end of the fixing ring (83) and the inside of the U-shaped frame (81), and a positioning groove for use with the positioning rod (82) being symmetrically provided at the top end of the rotating disk (7).

3. The hydraulic accessory pressure test device according to claim 2 is characterized in that: A guide groove (86) is provided at the front end of the test bench (1), and an auxiliary rod (85) fixedly connected to the bottom end of the positioning rod (82) is slidably sleeved inside the guide groove (86).

4. The hydraulic accessory pressure test device according to claim 1, characterized in that: The oil measuring assembly (3) comprises a hydraulic oil inlet valve (31) and a hydraulic oil outlet valve (32) both of which are connected to the hydraulic oil tank.

5. The hydraulic accessory pressure test device according to claim 1, characterized in that: The gas detection assembly (4) comprises an air pump (41) and a detection valve (43); the output end of the air pump (41) is fixedly connected to an air outlet valve (42); and the air outlet valve (42) and the detection valve (43) are both connected to a pressure detection gauge (44) for detecting gas pressure.

6. The hydraulic accessory pressure test device according to claim 1, characterized in that: The test device further comprises a collecting assembly (9) arranged on the operating table (5), the collecting assembly (9) comprising a collecting box (91), both sides of the front side wall at the top of the operating table (5) are fitted with clamping plates (92) fixedly connected to the bottom of the collecting box (91), the bottom of the collecting box (91) is fixedly connected to a guide plate (93) in contact with the inner wall of the rear side wall at the top of the operating table (5), and both ends of the operating table (5) are fixedly connected to baffles (94) for limiting the position of the collecting box (91).

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