Pressure-resistant test platform suitable for multiple models of mine hydraulic oil cylinder

Abstract

This invention relates to the field of pressure resistance testing technology and discloses a pressure resistance testing platform suitable for various models of mining hydraulic cylinders. The platform includes a platform base, with a hydraulic control system and control panel fixedly mounted on the top. A test chamber is also located on the top of the platform base. A filter pump station is fixedly mounted on the outer wall of the test chamber. A hydraulic cylinder is placed on the inner wall of the top of the test chamber, and a connecting pipeline system is snapped onto the top of the hydraulic cylinder. The hydraulic control system and filter pump station are electrically connected to the control panel. The test chamber achieves liquid communication between the main chamber and the test chamber through a guide plate. Combined with the circulating filtration function of the filter pump station, this ensures the cleanliness of the liquid within the test chamber and prevents foreign matter from interfering with leak observation. An optional ultrasonic generator further cleans the adhering substances on the inner wall of the test chamber, transferring foreign matter to the main chamber through liquid flow, significantly improving the accuracy and reliability of the test results.

Description

Technical Field

[0001] This invention relates to the field of pressure resistance testing technology, specifically a pressure resistance testing platform applicable to various models of mining hydraulic cylinders. Background Technology

[0002] Hydraulic cylinders, as core power components in mining equipment, are widely used in underground tunneling machines, hydraulic supports, and transportation machinery. Their sealing performance and pressure resistance directly affect the safety and operating efficiency of the equipment. To ensure the reliability of hydraulic cylinders under complex underground working conditions, pressure testing is an indispensable part of the production and quality inspection process.

[0003] In the prior art, hydraulic cylinder pressure resistance test platforms typically adopt a fixed connection method, connecting the cylinder to the test pipeline through a threaded or flanged structure, and using a hydraulic pump to provide test pressure, combined with a pressure sensor to monitor the cylinder's sealing and pressure resistance performance.

[0004] However, existing testing platforms have the following shortcomings:

[0005] Traditional testing platforms are typically designed for specific models of hydraulic cylinders, making it difficult to adapt to various sizes of cylinders in downhole operations. This necessitates frequent replacement of connecting parts or specialized fixtures, resulting in low testing efficiency.

[0006] Threaded or flanged connections are cumbersome to operate, and the installation and disassembly are time-consuming, which affects the progress of batch testing.

[0007] Existing platforms mostly rely on manual pressure adjustment and data recording, lacking intelligent control and data management functions, making it difficult to meet the modern industrial demand for efficient testing processes and data traceability. Summary of the Invention

[0008] This invention provides a pressure resistance testing platform suitable for various models of mining hydraulic cylinders, solving the problems mentioned in the background art.

[0009] The present invention provides the following technical solution: a pressure resistance testing platform applicable to multiple models of mining hydraulic cylinders, comprising a platform base, a hydraulic control system and a control panel fixedly mounted on the top of the platform base, a test chamber also provided on the top of the platform base, a filter pump station fixedly mounted on the outer wall of the test chamber, a hydraulic cylinder placed on the inner wall of the top of the test chamber, a connecting pipeline system snapped onto the top of the hydraulic cylinder, and the hydraulic control system and the filter pump station electrically connected to the control panel.

[0010] As a preferred embodiment of the present invention, the hydraulic control system includes an oil tank and a hydraulic pump. A pump output end is fixedly mounted on one side of the output end of the hydraulic pump. Two sets of output pipelines are provided on the outer wall of the pump output end. A radiator is fixedly mounted on the top of the oil tank. A circulation pipeline is fixedly mounted on the outer wall of the radiator. A motor is fixedly mounted on the top of the oil tank. A booster device is fixedly mounted on one side of the output shaft of the motor. A booster device is fixedly mounted on the outer wall of the motor.

[0011] As a preferred embodiment of the present invention, the radiator and the oil tank are connected, the circulation pipe and the oil tank are connected, the radiator also includes a cooling fan, the radiator, the circulation pipe and the oil tank form a circulation path, the two sets of pressurizing devices are respectively connected to one side of the two sets of connecting pipe systems, the two sets of output pipes are respectively connected to the other side of the two sets of connecting pipe systems, and the input port of the pump output end is connected to the oil tank.

[0012] As a preferred embodiment of the present invention, the test chamber includes a main cavity and a test cavity. A flow guide is provided on the top of an adjacent side of the main cavity and the test cavity. A flow guide plate is fixedly installed on the flow guide. A top fixing frame is fixedly installed on the top of the inner wall of the main cavity. A top support plate is fixedly installed on the top of the top fixing frame.

[0013] As a preferred embodiment of the present invention, the hydraulic cylinder is placed on the inner wall of the test chamber, and the main chamber and the test chamber are connected by a guide plate, and the guide plate is inclined to one side of the main chamber.

[0014] The filter pump station is located on the outer wall of one side of the main cavity. The input port of the filter pump station is connected to the main cavity, and the output port of the filter pump station is connected to the test cavity.

[0015] As a preferred embodiment of the present invention, the connecting pipeline system includes a connector, both sides of which are provided with side through holes, and a central limiting groove is provided in the middle of the connector. A telescopic mechanism is fixedly installed on the inner wall of the side through holes. A push ring is fixedly installed at the top telescopic end of the telescopic mechanism. A plurality of pressing ring plates are fixedly installed in a ring at the bottom of the push ring. A ball is embedded in the pressing ring plate on the side near the axis of the central limiting groove. A cover plate is fixedly installed on the top of the connector by screws. A sliding groove and a fixing hole are respectively provided in a ring at the top of the cover plate. A fixing ring plate is fixedly installed in a ring at the bottom of the cover plate. A sealing sleeve is provided on the inner wall of the central limiting groove.

[0016] As a preferred embodiment of the present invention, the fixed ring plate and the pressing ring plate are positioned correspondingly, a plurality of pressing ring plates are sleeved on the outside of a plurality of fixed ring plates, the sealing sleeve is located on the inner wall of a plurality of fixed ring plates, the pressing ring plate is slidably sleeved on the inner wall of the sliding groove, and a plurality of pressing ring plates, fixed ring plates and central limiting groove are located on the same axis.

[0017] The thickness of the fixed ring plate on the side away from the cover plate is greater than the thickness of the fixed ring plate on the side closer to the cover plate.

[0018] As a preferred embodiment of the present invention, the hydraulic cylinder includes a cylinder body, a hydraulic interface is slidably sleeved in the inner cavity of the cylinder body, and piston rods are fixedly mounted on both outer walls of the cylinder body.

[0019] As a preferred embodiment of the present invention, the control panel includes a display module, an input module, a processor module, a data storage module, and a communication interface;

[0020] The display module is fixedly mounted on the outer surface of the control panel and is used to display test parameters in real time, including upper chamber test time, upper chamber pressure arrival time, upper chamber end time, upper chamber maximum pressure, lower chamber test time, lower chamber pressure arrival time, lower chamber end time, lower chamber maximum pressure, and test status prompts.

[0021] The input module is located on the outer surface of the control panel and includes manual input buttons and a touch screen, used to input test pressure parameters, select test modes, and trigger test commands.

[0022] The processor module is electrically connected to the display module, input module, data storage module and communication interface. The processor module is also electrically connected to the hydraulic control system and the connecting pipeline system. It is used to process the input test parameters, control the hydraulic oil supply and pressurization process, and monitor the pressure changes during the test.

[0023] The data storage module is used to record test data, including test date, pressure holding time, product name, product specifications, product number, and test personnel information;

[0024] The communication interface is located on the side of the control panel and is used to export test data through an external storage device or connect to an external monitoring system.

[0025] The control panel uses a processor module to coordinate the control of the hydraulic control system and the connecting pipeline system, supports switching between manual and automatic modes, and displays a zero-pressure status after the test is completed.

[0026] The present invention has the following beneficial effects:

[0027] 1. This pressure resistance testing platform is applicable to multiple models of mining hydraulic cylinders. The connecting pipeline system adopts a sealing sleeve with replaceable inner diameter. With a quick connection mechanism and the extrusion design of the clamping ring plate and the fixed ring plate, it can adapt to the interface specifications of 95% of hydraulic cylinders. No special fixtures or complex adjustments are required, which significantly improves the versatility of the testing platform and reduces the cost for enterprises to purchase special equipment for different cylinder models.

[0028] Compared to traditional threaded or flanged connections, the connecting pipeline system achieves rapid sealing and connection through a telescopic mechanism, reducing the connection time to within a few seconds and significantly improving the efficiency of cylinder installation and disassembly.

[0029] The synergy between the hydraulic control system and the control panel supports automated injection, pressurization, and unloading processes, significantly shortening the single test cycle and meeting the high-efficiency requirements of mass production testing.

[0030] 2. This pressure resistance test platform is applicable to various models of mining hydraulic cylinders. The test chamber achieves liquid communication between the main chamber and the test chamber through a guide plate. Combined with the circulation filtration function of the filter pump station, it ensures that the liquid in the test chamber is clean and avoids foreign objects interfering with leakage observation.

[0031] An optional ultrasonic generator can further clean the adhering substances on the inner wall of the test chamber and transfer foreign objects to the main chamber through liquid flow, significantly improving the accuracy and reliability of the test results. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0033] Figure 2 This is a schematic diagram of the test chamber structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the hydraulic control system structure of the present invention;

[0035] Figure 4 This is a schematic diagram of the hydraulic cylinder structure of the present invention;

[0036] Figure 5 This is a schematic cross-sectional view of the connecting pipeline system of the present invention;

[0037] Figure 6 This is a schematic diagram of the exploded structure of the connecting pipeline system of the present invention;

[0038] Figure 7 This is a schematic diagram of the fixed ring plate structure of the present invention;

[0039] Figure 8 This is a schematic diagram of the cross-sectional structure of the test chamber of the present invention.

[0040] In the diagram: 1. Platform base; 2. Hydraulic control system; 3. Control panel; 4. Test chamber; 5. Filter pump station; 6. Connecting pipeline system; 7. Hydraulic cylinder;

[0041] 201. Oil tank; 202. Hydraulic pump; 203. Pump output end; 204. Output pipeline; 205. Radiator; 206. Circulation pipeline; 207. Motor; 208. Booster device;

[0042] 401. Main cavity; 402. Test cavity; 403. Flow guide port; 404. Flow guide plate; 405. Top fixing frame; 406. Top support plate;

[0043] 601. Connector; 602. Side through hole; 603. Central limiting groove; 604. Telescopic mechanism; 605. Push ring; 606. Pressing ring plate; 607. Ball bearing; 608. Cover plate; 609. Sliding groove; 610. Fixing hole; 611. Fixing ring plate; 612. Sealing sleeve;

[0044] 701. Cylinder block; 702. Piston rod; 703. Hydraulic interface. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Please see Figures 1-8 This is a pressure resistance testing platform suitable for various models of mining hydraulic cylinders. It includes a platform base 1, a hydraulic control system 2 and a control panel 3 fixedly mounted on the top of the platform base 1, a test chamber 4 on the top of the platform base 1, a filter pump station 5 fixedly mounted on the outer wall of the test chamber 4, a hydraulic cylinder 7 placed on the inner wall of the top of the test chamber 4, and a connecting pipeline system 6 snapped onto the top of the hydraulic cylinder 7. The hydraulic control system 2 and the filter pump station 5 are electrically connected to the control panel 3.

[0047] In a preferred embodiment: the hydraulic control system 2 includes an oil tank 201 and a hydraulic pump 202. A pump output end 203 is fixedly mounted on one side of the output end of the hydraulic pump 202. Two sets of output pipes 204 are provided on the outer wall of the pump output end 203. A radiator 205 is fixedly mounted on the top of the oil tank 201. A circulation pipe 206 is fixedly mounted on the outer wall of the radiator 205. A motor 207 is fixedly mounted on the top of the oil tank 201. A booster device 208 is fixedly mounted on one side of the output shaft of the motor 207. The booster device 208 is fixedly mounted on the outer wall of the motor 207.

[0048] In a preferred embodiment: radiator 205 is connected to oil tank 201, circulation pipe 206 is connected to oil tank 201, radiator 205 also includes a cooling fan, radiator 205, circulation pipe 206 and oil tank 201 form a circulation path, two sets of booster devices 208 are respectively connected to one side of two sets of connecting pipe systems 6, two sets of output pipes 204 are respectively connected to the other side of two sets of connecting pipe systems 6, and the input port of pump output end 203 is connected to oil tank 201.

[0049] In the above structure, the hydraulic control system 2 uses the hydraulic pump 202 to drive the pump output end 203 to operate. The hydraulic oil in the oil tank 201 is transmitted to the output pipeline 204 through the pump output end 203 for output. The two sets of output pipelines 204 are connected to two sets of connecting pipeline systems 6 respectively, so that the hydraulic oil is transmitted to the inner cavity of the hydraulic cylinder 7 through the connecting pipeline system 6. When the hydraulic cylinder 7 is tested for cylinder sealing performance by the equipment, the amount of hydraulic oil input in the inner cavity of the hydraulic cylinder 7 can be controlled according to the preset parameters of the inner cavity of the control panel 3. By setting the motor 207, the motor 207 drives the booster device 208 to operate. The two sets of booster devices 208 are connected to the two sets of connecting pipeline systems 6 respectively, so that after the hydraulic oil is transmitted to the inner cavity of the hydraulic cylinder 7 through the connecting pipeline system 6, the motor 207 and the booster device 208 can further pressurize the hydraulic cylinder 7, thereby realizing the pressure resistance test of the inner cavity of the hydraulic cylinder 7.

[0050] In a preferred embodiment: the test chamber 4 includes a main cavity 401 and a test cavity 402. The top of the adjacent side of the main cavity 401 and the test cavity 402 are provided with a flow guide 403. The flow guide 403 is fixedly equipped with a flow guide plate 404. The top of the inner wall of the main cavity 401 is fixedly equipped with a top fixing frame 405. The top of the top fixing frame 405 is fixedly equipped with a top support plate 406.

[0051] In a preferred embodiment: the hydraulic cylinder 7 is placed on the inner wall of the test chamber 402, the main chamber 401 and the test chamber 402 are connected by a guide plate 404, and the guide plate 404 is inclined towards the main chamber 401.

[0052] The filter pump station 5 is located on the outer wall of one side of the main cavity 401. The inlet of the filter pump station 5 is connected to the main cavity 401, and the outlet of the filter pump station 5 is connected to the test cavity 402.

[0053] In the above structure, by providing a flow guide port 403 and connecting the main cavity 401 and the test cavity 402 with a flow guide plate 404, when the hydraulic cylinder 7 is placed on the inner wall of the test cavity 402 for testing, the liquid in the inner cavity of the test cavity 402 can be guided to the inner cavity of the main cavity 401 through the flow guide plate 404. This allows foreign objects in the liquid in the test cavity 402 to be transferred to the inner cavity of the main cavity 401, thereby avoiding the problem that foreign objects in the liquid in the test cavity 402 would prevent the hydraulic cylinder 7 from leaking during testing.

[0054] The filter pump station 5 is connected to the main cavity 401 through its inlet and to the test cavity 402 through its outlet. This allows the liquid inside the main cavity 401 to be filtered by the filter pump station 5 and to be transferred to the inner cavity of the test cavity 402 through the filter pump station 5, so that the liquid inside the test cavity 402 can completely cover the hydraulic cylinder 7.

[0055] By setting up a filter pump station 5, when the hydraulic cylinder 7 located in the inner cavity of the test chamber 402 is leaking hydraulic oil, the filter pump station 5 can be started directly. This allows the liquid in the inner cavity of the main cavity 401 to be transferred to the test chamber 402 through the filter pump station 5. The liquid in the inner cavity of the test chamber 402 is then transferred to the main cavity 401 through the guide plate 404 and filtered by the filter pump station 5, thereby purifying the liquid in the test chamber 402.

[0056] Optionally, an ultrasonic generator can be embedded in the bottom cavity of the test chamber 402. The ultrasonic generator is used to ultrasonically clean the foreign objects in the cavity of the test chamber 402, and the liquid is transferred to the cavity of the test chamber 402 through the filter pump station 5. The flow of the liquid drives the foreign objects to move into the main cavity 401, thereby solving the problem of hydraulic oil adhering to and covering the inner wall of the test chamber 402.

[0057] In a preferred embodiment: the connecting pipeline system 6 includes a connector 601, with side through holes 602 on both sides of the connector 601, a central limiting groove 603 in the middle of the connector 601, a telescopic mechanism 604 fixedly mounted on the inner wall of the side through holes 602, a push ring 605 fixedly mounted on the top telescopic end of the telescopic mechanism 604, a plurality of pressing ring plates 606 fixedly mounted on the bottom of the push ring 605 in an annular shape, a ball bearing 607 embedded on the side of the pressing ring plate 606 near the axis of the central limiting groove 603, a cover plate 608 fixedly mounted on the top of the connector 601 by screws, a sliding groove 609 and a fixing hole 610 respectively annularly opened on the top of the cover plate 608, a fixing ring plate 611 fixedly mounted on the bottom of the cover plate 608 in an annular shape, and a sealing sleeve 612 provided on the inner wall of the central limiting groove 603.

[0058] In a preferred embodiment: the fixed ring plate 611 and the clamping ring plate 606 are positioned correspondingly, a plurality of clamping ring plates 606 are sleeved on the outside of a plurality of fixed ring plates 611, the sealing sleeve 612 is located on the inner wall of a plurality of fixed ring plates 611, the clamping ring plate 606 is slidably sleeved on the inner wall of the sliding groove 609, and the plurality of clamping ring plates 606, fixed ring plates 611 and central limiting groove 603 are located on the same axis;

[0059] The thickness of the fixed ring plate 611 on the side away from the cover plate 608 is greater than the thickness of the fixed ring plate 611 on the side closer to the cover plate 608.

[0060] In the above structure, the cover plate 608 and the connector 601 are fixedly assembled. The sealing sleeve 612 is sleeved on the outer wall of the piston rod 702, and several fixing ring plates 611 are sleeved on the outer wall of the sealing sleeve 612. The telescopic mechanism 604 drives the push ring 605 to move towards the fixing ring plate 611, so that the push ring 605 drives several pressing ring plates 606 to move towards the fixing ring plate 611. The inner wall of the central limiting groove 603 abuts against the outer wall of the pressing ring plate 606, and the ball bearings 607... The fixed ring plate 611 is rolled to the outer wall of the fixed ring plate 611. At the same time, the thickness of the fixed ring plate 611 on the side away from the cover plate 608 is greater than the thickness of the fixed ring plate 611 on the side close to the cover plate 608. When the pressing ring plate 606 drives the rolling ball 607 to move towards the fixed ring plate 611, the pressing ring plate 606 increases the abutment pressure on the fixed ring plate 611 through the rolling ball 607. This causes the fixed ring plate 611 to squeeze the sealing sleeve 612, thereby achieving a sealing sleeve connection between the sealing sleeve 612 and the piston rod 702.

[0061] By replacing the sealing sleeve 612 with one of the same outer diameter but a different inner diameter, the connecting pipeline system 6 can quickly connect different models of hydraulic cylinders 7.

[0062] In a preferred embodiment, the hydraulic cylinder 7 includes a cylinder body 701, a hydraulic interface 703 is slidably sleeved in the inner cavity of the cylinder body 701, and piston rods 702 are fixedly mounted on both outer walls of the cylinder body 701.

[0063] In the above structure, during testing, the hydraulic cylinder 7 is placed in the inner cavity of the test chamber 402 by hoisting. The sealing sleeve 612 is fitted onto the outer wall of the piston rod 702, so that the bottom arc direction of the connector 601 is aligned with the arc direction of the cylinder 701. The telescopic mechanism 604 is controlled by the control panel 3, so that the telescopic mechanism 604 drives the pressing ring plate 606 to move towards the fixed ring plate 611 through the push ring 605. Then, the pressing ring plate 606 squeezes the fixed ring plate 611 through the ball bearings 607, so that the part of the sealing sleeve 612 fitted onto the piston rod 702 is squeezed and contracted, thereby realizing the rapid connection between the connecting pipeline system 6 and the hydraulic cylinder 7. This solves the problem that traditional test platforms require frequent rotation of the threaded structure, resulting in slow connection between pipelines.

[0064] In a preferred embodiment: the control panel 3 includes a display module, an input module, a processor module, a data storage module, and a communication interface;

[0065] The display module is fixedly mounted on the outer surface of the control panel 3 and is used to display test parameters in real time, including upper chamber test time, upper chamber pressure time, upper chamber end time, upper chamber maximum pressure, lower chamber test time, lower chamber pressure time, lower chamber end time, lower chamber maximum pressure, and test status prompts.

[0066] The input module is located on the outer surface of the control panel 3 and includes manual input buttons and a touch screen, used to input test pressure parameters, select test modes, and trigger test commands.

[0067] The processor module is electrically connected to the display module, input module, data storage module and communication interface. The processor module is also electrically connected to the hydraulic control system 2 and the connecting pipeline system 6. It is used to process the input test parameters, control the hydraulic oil supply and pressurization process, and monitor the pressure changes during the test.

[0068] The data storage module is used to record test data, including test date, pressure holding time, product name, product specifications, product number, and test personnel information;

[0069] The communication interface is located on the side of the control panel 3 and is used to export test data through an external storage device or connect to an external monitoring system.

[0070] The control panel 3 uses a processor module to coordinate the control of the hydraulic control system 2 and the connecting pipeline system 6, supports switching between manual and automatic modes, and displays the zero pressure status after the test is completed.

[0071] Working principle: When the operator turns on the power of the test platform, the control panel 3 enters the initialization interface and prompts the device self-test status.

[0072] The processor module performs self-tests on the hydraulic control system 2, the connecting pipeline system 6, and the sensors to ensure that each component is operating normally.

[0073] Parameter settings:

[0074] The operator manually inputs test parameters through the input module, including: test pressure required by the drawing, test mode, test object information. The input parameters are stored in the data storage module through the processor module and displayed in real time on the display module for confirmation. The hydraulic control system 2 is started, and the liquid in the main chamber 401 is filtered and injected into the test chamber 402 to ensure that the liquid in the test chamber 402 is clean and reaches the preset liquid level. The hydraulic cylinder 7 to be tested is placed on the inner wall of the test chamber 402 using hoisting equipment, ensuring that the piston rod 702 faces the connecting pipeline system 6.

[0075] The liquid in the test chamber 402 completely covers the hydraulic cylinder 7, which facilitates subsequent leakage observation. According to the size of the piston rod 702, a sealing sleeve 612 with a suitable inner diameter is selected and installed in the connector 601.

[0076] Control panel 3 sends commands via processor module to drive telescopic mechanism 604. Telescopic mechanism 604 pushes push ring 605, causing clamping ring plate 606 to move towards fixed ring plate 611. Clamping ring plate 606 applies pressure to fixed ring plate 611 via ball bearings 607, compressing sealing sleeve 612 to achieve a sealed connection with piston rod 702. The larger thickness design of fixed ring plate 611 on the side away from cover plate 608 ensures a gradual increase in pressure, improving sealing reliability. After connection is completed, display module prompts "Connection complete," confirming no leakage between hydraulic cylinder 7 and connecting pipeline system 6.

[0077] The operator clicks the "lower chamber pressure test" button through the input module, and the processor module controls the hydraulic control system 2 to start.

[0078] Hydraulic pump 202 draws hydraulic oil from oil tank 201 through pump output end 203, and injects it into the lower chamber of hydraulic cylinder 7 through output pipeline 204 and connecting pipeline system 6; display module displays the "liquid entering the lower chamber" status in real time and updates the current liquid level and pressure data;

[0079] When the lower chamber of the cylinder is filled with hydraulic oil, the processor module automatically stops the hydraulic pump 202 from supplying fluid based on the feedback signal from the pressure sensor; the system enters the pressure holding state, and the control panel 3 displays the pressure holding time and pressure value through the display module. The operator observes whether there are any signs of leakage in the liquid in the test chamber 402.

[0080] If a leak is detected, the filter pump station 5 is activated, guiding the liquid in the test chamber 402 back to the main chamber 401 through the guide plate 404. After filtration, the liquid is re-injected to ensure a clean test environment. The pressurization device 208 applies high pressure to the lower chamber of the hydraulic cylinder 7 through the connecting pipeline system 6, up to 52MPa, meeting the pressure resistance test requirements of 95% of downhole hydraulic cylinders 7. The processor module monitors pressure changes in real time and displays the updated pressure curve, pressure arrival time, and maximum pressure value.

[0081] During the test, the radiator 205 and the circulation pipe 206 form a hydraulic oil circulation path to prevent the oil temperature from getting too high and ensure system stability. When the operator clicks the "unload" button, the processor module controls the hydraulic control system 2 to release the pressure inside the hydraulic cylinder 7. The hydraulic oil flows back to the oil tank 201 through the connecting pipeline system 6, and the display module prompts "pressure zero". The filter pump station 5 continues to run, circulating and filtering the liquid in the test chamber 402 to keep the test environment clean.

[0082] Finally, hydraulic cylinder 7 is disassembled to complete the single test procedure.

[0083] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0084] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure resistance testing platform suitable for various models of mining hydraulic cylinders, comprising a platform base (1), characterized in that: The top of the platform base (1) is fixedly equipped with a hydraulic control system (2) and a control panel (3). The top of the platform base (1) is also equipped with a test chamber (4). The outer wall of the test chamber (4) is fixedly equipped with a filter pump station (5). The top inner wall of the test chamber (4) is equipped with a hydraulic cylinder (7). The top of the hydraulic cylinder (7) is connected to a connecting pipeline system (6). The hydraulic control system (2) and the filter pump station (5) are electrically connected to the control panel (3). The test chamber (4) includes a main cavity (401) and a test cavity (402). The top of the adjacent side of the main cavity (401) and the test cavity (402) are provided with a flow guide (403). The flow guide (403) is fixedly equipped with a flow guide plate (404). The top of the inner wall of the main cavity (401) is fixedly equipped with a top fixing frame (405). The top of the top fixing frame (405) is fixedly equipped with a top support plate (406). The hydraulic cylinder (7) is placed on the inner wall of the test chamber (402). The main chamber (401) and the test chamber (402) are connected by a guide plate (404), and the guide plate (404) is inclined towards the main chamber (401). The filter pump station (5) is located on the outer wall of the main chamber (401). The input port of the filter pump station (5) is connected to the main chamber (401), and the output port of the filter pump station (5) is connected to the test chamber (402). The connecting pipeline system (6) includes a connector (601), with side through holes (602) on both sides of the connector (601) and a central limiting groove (603) in the middle of the connector (601). A telescopic mechanism (604) is fixedly installed on the inner wall of the side through hole (602). A push ring (605) is fixedly installed at the top telescopic end of the telescopic mechanism (604), and a plurality of clamping ring plates (605) are fixedly installed in a ring at the bottom of the push ring (605). 6) A ball bearing (607) is embedded on the side of the clamping ring plate (606) near the axis of the central limiting groove (603). A cover plate (608) is fixedly mounted on the top of the connector (601) by screws. A sliding groove (609) and a fixing hole (610) are respectively opened in the top of the cover plate (608). A fixing ring plate (611) is fixedly mounted in the bottom of the cover plate (608). A sealing sleeve (612) is provided on the inner wall of the central limiting groove (603). The fixed ring plate (611) and the clamping ring plate (606) are positioned correspondingly. A plurality of clamping ring plates (606) are sleeved on the outside of a plurality of fixed ring plates (611). The sealing sleeve (612) is located on the inner wall of a plurality of fixed ring plates (611). The clamping ring plate (606) is slidably sleeved on the inner wall of the sliding groove (609). A plurality of clamping ring plates (606), fixed ring plates (611) and central limiting groove (603) are located on the same axis. The thickness of the fixed ring plate (611) on the side away from the cover plate (608) is greater than the thickness of the fixed ring plate (611) on the side closer to the cover plate (608).

2. The pressure resistance testing platform applicable to multiple models of mining hydraulic cylinders according to claim 1, characterized in that: The hydraulic control system (2) includes an oil tank (201) and a hydraulic pump (202). A pump output end (203) is fixedly mounted on one side of the output end of the hydraulic pump (202). Two sets of output pipes (204) are provided on the outer wall of the pump output end (203). A radiator (205) is fixedly mounted on the top of the oil tank (201). A circulation pipe (206) is fixedly mounted on the outer wall of the radiator (205). A motor (207) is fixedly mounted on the top of the oil tank (201). A booster device (208) is fixedly mounted on one side of the output shaft of the motor (207). A booster device (208) is fixedly mounted on the outer wall of the motor (207).

3. The pressure resistance testing platform applicable to multiple models of mining hydraulic cylinders according to claim 2, characterized in that: The radiator (205) is connected to the oil tank (201), the circulation pipe (206) is connected to the oil tank (201), the radiator (205) also includes a cooling fan, the radiator (205), the circulation pipe (206) and the oil tank (201) form a circulation path, the two sets of booster devices (208) are respectively connected to one side of the two sets of connecting pipeline systems (6), the two sets of output pipelines (204) are respectively connected to the other side of the two sets of connecting pipeline systems (6), and the input port of the pump output end (203) is connected to the oil tank (201).

4. The pressure resistance testing platform applicable to multiple models of mining hydraulic cylinders according to claim 1, characterized in that: The hydraulic cylinder (7) includes a cylinder body (701), a piston rod (702) is slidably sleeved in the inner cavity of the cylinder body (701), and hydraulic interfaces (703) are fixedly mounted on both outer walls of the cylinder body (701).

5. The pressure resistance testing platform applicable to multiple models of mining hydraulic cylinders according to claim 1, characterized in that: The control panel (3) includes a display module, an input module, a processor module, a data storage module, and a communication interface. The display module is fixedly mounted on the outer surface of the control panel (3) and is used to display test parameters in real time, including the upper chamber test pressure time, the upper chamber pressure arrival time, the upper chamber end time, the upper chamber maximum pressure, the lower chamber test pressure time, the lower chamber pressure arrival time, the lower chamber end time, the lower chamber maximum pressure, and test status prompts. The input module is located on the outer surface of the control panel (3) and includes manual input buttons and a touch screen, used to input test pressure parameters, select test modes, and trigger test commands. The processor module is electrically connected to the display module, the input module, the data storage module, and the communication interface. The processor module is also connected to the hydraulic system. The control system (2) and the connecting pipeline system (6) are electrically connected to process the input test parameters, control the hydraulic oil supply and pressurization process, and monitor the pressure changes during the test. The data storage module is used to record test data, including test date, pressure holding time, product name, product specifications, product number and test personnel information. The communication interface is located on the side of the control panel (3) and is used to export test data through an external storage device or connect to an external monitoring system. The control panel (3) realizes the coordinated control of the hydraulic control system (2) and the connecting pipeline system (6) through the processor module, supports the switching between manual mode and automatic mode, and prompts the zero pressure status through the display module after the test is completed.

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