Functional multi-angle adjustable slide rail type self-moving pressure test equipment

Abstract

The invention belongs to the field of hydraulic support oil cylinder performance detection, and particularly relates to functional multi-angle adjustable sliding rail type self-moving pressure testing equipment which comprises a pressure testing mechanism and a pressure control monitoring system, the pressure control monitoring system is arranged on one side of the pressure testing mechanism, the pressure testing mechanism comprises a supporting frame body, and a walking rail is arranged in the supporting frame body. A sliding rail vehicle is arranged on the walking rail, one end of the sliding rail vehicle is connected with an oil cylinder containing frame, a plurality of positioning holes are formed in the oil cylinder containing frame, a guide hole is formed in one end, corresponding to the oil cylinder containing frame, of the supporting frame body, the oil cylinder containing frame penetrates through the guide hole and is fixed to the supporting frame body through a cylindrical limiting pin, and an oil cylinder is placed on the oil cylinder containing frame. The two ends of the oil cylinder are in bolted connection with the sliding rail vehicle and the supporting frame body respectively, and an oil inlet of the oil cylinder is communicated with the pressure control monitoring system. Through the pressure test mechanism and the pressure control monitoring system, the performance of oil cylinders with different lengths and different angles can be accurately detected, and the safety and reliability of a hydraulic support system are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the field of performance detection of hydraulic support cylinders, and particularly relates to a functional multi-angle adjustable slide rail type self-shifting pressure testing device. Background Art

[0002] The hydraulic support is the key in the "three-machine matching" equipment for fully mechanized mining and also the core equipment for roof safety support. The performance reliability and stability of the hydraulic support cylinder directly affect the working efficiency of the hydraulic support, thus determining the overall reliability of roof support. Therefore, it is of great significance to ensure the efficient operation of the cylinder during the entire face mining process and achieve low failure rate and performance stability.

[0003] The service cycle of a fully mechanized mining face is usually 6 to 18 months. After the mining is completed, it is necessary to return to the well for inspection, repair, maintenance, and conduct a comprehensive overhaul of the entire support system. Among them, the core content of the overhaul is the inspection and maintenance of the cylinder assembly to ensure its excellent performance in subsequent working faces. However, there are still systematic deficiencies and imperfect standardization in the current evaluation and verification methods for the overhaul quality of cylinders. There is no pressure testing equipment that can be used to judge the overhaul quality of cylinders with different lengths and angles, which restricts the performance guarantee of the support cylinders.

[0004] Therefore, how to provide a functional multi-angle adjustable slide rail type self-shifting pressure testing device has become a problem that needs to be considered by those skilled in the art. Summary of the Invention

[0005] In view of the problems existing in the above-mentioned prior art, the present invention discloses a functional multi-angle adjustable slide rail type self-shifting pressure testing device. The present invention can more accurately detect potential defects of the cylinder and is applicable to cylinders of different sizes, significantly improving the safety and reliability of the hydraulic support system. The present invention specifically discloses the following technical solutions:

[0006] A functional multi-angle adjustable slide rail type self-shifting pressure testing device includes a pressure testing mechanism and a pressure control and monitoring system. The pressure control and monitoring system is arranged on one side of the pressure testing mechanism. The pressure testing mechanism includes a support frame body. A walking rail is arranged inside the support frame body. A slide rail vehicle is arranged on the walking rail. One end of the slide rail vehicle is connected with an oil cylinder placing rack. A plurality of positioning holes are arranged on the oil cylinder placing rack. A guiding hole is opened on one end of the support frame body corresponding to the oil cylinder placing rack. The oil cylinder placing rack passes through the guiding hole and is fixed on the support frame body by a cylindrical limiting pin. The oil cylinder is placed on the oil cylinder placing rack. Both ends of the oil cylinder are respectively bolted to the slide rail vehicle and the support frame body. The oil inlet of the oil cylinder is communicated with the pressure control and monitoring system.

[0007] Further, the support frame body includes a base fixing plate, a test press side plate, a test piece stabilizing device, a test piece pressure bearing device, and an oil cylinder fixing mechanism. The test press side plates are arranged on both sides of the base fixing plate. One of the test press side plates is provided with a guiding hole. The test piece stabilizing device is fixedly connected to the four corners of the test press side plate. The test piece pressure bearing device is arranged on both sides of the test press side plate. The oil cylinder fixing mechanism is arranged on the test press side plate where the guiding hole is provided.

[0008] Further, the oil cylinder fixing mechanism includes an oil cylinder support guard plate and a plurality of first support ear seats. The plurality of first support ear seats are arranged around the oil cylinder support guard plate. The oil cylinder support guard plate is arranged on the test press side plate. The oil cylinder support guard plate is provided with a through hole corresponding to the guiding hole.

[0009] Further, the test press side plate includes two test press cover plates and an inner support plate arranged horizontally in the middle.

[0010] Further, the slide rail vehicle includes guide wheels, an oil cylinder test pressure supporting plate, an oil cylinder holding support frame, a supporting cushion plate, a supporting flat seat, second support ear seats, and a positioning bracket. The guide wheels are installed on the oil cylinder test pressure supporting plate. The front end of the oil cylinder test pressure supporting plate is provided with an oil cylinder holding support frame. The oil cylinder holder is fixed on the oil cylinder holding support frame. The supporting cushion plate is fixed at the rear end of the oil cylinder test pressure supporting plate. The supporting flat seat is arranged on the front end face of the oil cylinder test pressure supporting plate. The second support ear seats are arranged around the supporting flat seat on the oil cylinder test pressure supporting plate. The second support ear seats and the first support ear seats are on the same central axis. The positioning bracket is arranged on the rear end face of the supporting cushion plate.

[0011] Further, the positioning bracket includes a limiting I-beam and a positioning clamp frame. The limiting I-beam is horizontally fixed on the rear end face of the supporting cushion plate. The limiting I-beam is flush with the test piece pressure bearing device. The positioning clamp frame is arranged at both ends of the limiting I-beam. The positioning clamp frame is slidably arranged in the test piece pressure bearing device.

[0012] Further, an arc-shaped support plate for oil cylinder support is arranged at one end of the oil cylinder holder close to the slide rail vehicle.

[0013] Further, a protective cover is also included. The protective cover is arranged around the support frame body.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. Compared with traditional oil cylinder pressure test devices, this one has the characteristics of multi-functional integration and can test oil cylinders of different lengths and angles. It can not only complete the basic tests of oil cylinder performance (such as pressure, sealing performance, leakage rate, etc.), but also simulate various working conditions of the oil cylinder in the actual working environment through the control system, such as load changes, pressure fluctuations, etc. The high integration of the device makes the test process more efficient, reduces the operation links and equipment investment, and at the same time improves the convenience and safety of operation;

[0016] 2. The present invention realizes the all-round and accurate test of the oil cylinder performance by means of the control system and high-precision sensors to monitor the pressure, flow rate, sealing performance and leakage of the oil cylinder in real time, overcomes the limitations of traditional detection methods, makes the evaluation of the oil cylinder performance more comprehensive and scientific, can detect the potential defects of the oil cylinder more accurately, and thus significantly improves the safety and reliability of the hydraulic support system;

[0017] 3. The present invention adopts high-precision pressure sensors and a stable pressure test mechanism, which can accurately detect the pressure-bearing capacity and sealing performance of the oil cylinder in an extremely short time. The detection accuracy is up to ±0.1MPa and ±0.01mL / min. This innovative design solves the problems of inaccurate oil leakage detection and limited pressure-bearing test range in traditional oil cylinder tests, ensures that the sealing performance and pressure resistance of the oil cylinder in the working state can meet the high-standard safety requirements, and greatly improves the service life and reliability of the oil cylinder;

[0018] 4. The present invention is applicable to the detection of oil cylinders in various complex environments. Through the setting of the protective cover, it can effectively avoid the interference of external environmental factors on the test results and improve the stability and applicability of the device. Description of the Drawings

[0019] Figure 1 is a schematic diagram of the main structure of the present invention;

[0020] Figure 2 is a schematic diagram of the structure of the pressure test mechanism of the present invention without the protective cover installed;

[0021] Figure 3 is a top view of the pressure test mechanism of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of the slide rail car of the present invention;

[0023] Figure 5 is a schematic diagram of the installation of the oil cylinder storage rack of the present invention.

[0024] Among them, 1. Base fixing plate; 2. Pressure test piece stabilizer; 3. Pressure test piece pressure bearing device; 4. Travel rail; 5. Oil cylinder storage rack; 6. Oil cylinder support guard plate; 7. First support ear seat; 8. Pressure test machine mask; 9. Inner support plate; 10. Guide rail wheel; 11. Oil cylinder pressure test support plate; 12. Oil cylinder storage support frame; 13. Support backing plate; 14. Support flat seat; 15. Second support ear seat; 16. Limit I-beam; 17. Positioning clamp frame; 18. Arc-shaped support plate; 19. Protective cover. Detailed implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] Embodiment 1

[0027] Referring to the attached Figures 1-5 , this embodiment discloses a functional multi-angle adjustable sliding rail type self-moving pressure test device, which includes a pressure test mechanism and a pressure control and monitoring system. The pressure control and monitoring system is arranged on one side of the pressure test mechanism. The pressure test mechanism includes a support frame body. A travel rail 4 is arranged inside the support frame body. A sliding rail vehicle is arranged on the travel rail 4. One end of the sliding rail vehicle is connected with an oil cylinder storage rack 5. A plurality of positioning holes are arranged on the oil cylinder storage rack 5. An arc-shaped support plate 18 for oil cylinder support is arranged at one end of the oil cylinder storage rack 5 close to the sliding rail vehicle. A guide hole is opened at one end of the support frame body corresponding to the oil cylinder storage rack 5. The oil cylinder storage rack 5 passes through the guide hole and is fixed on the support frame body by a cylindrical limit pin. The oil cylinder is placed on the oil cylinder storage rack 5. Both ends of the oil cylinder are bolted to the sliding rail vehicle and the support frame body respectively. The oil inlet of the oil cylinder is communicated with the pressure control and monitoring system.

[0028] Specifically, the support frame body includes a base fixing plate 1, a pressure test machine side plate, a pressure test piece stabilizer 2, a pressure test piece pressure bearing device 3 and an oil cylinder fixing mechanism. The pressure test machine side plates are arranged on both sides of the base fixing plate 1. The pressure test machine side plates in this embodiment include two pressure test machine masks 8 and an inner support plate 9 arranged horizontally in the middle to improve its structural strength. A guide hole is opened on one side pressure test machine side plate. The pressure test piece stabilizer 2 is fixedly connected to the four corners of the pressure test machine side plate. The pressure test piece pressure bearing device 3 is arranged on both sides of the pressure test machine side plate. The oil cylinder fixing mechanism is arranged on the pressure test machine side plate on the side where the guide hole is opened.

[0029] The oil cylinder fixing mechanism includes an oil cylinder support guard plate 6 and several first support lugs 7. The several first support lugs 7 are arranged around the oil cylinder support guard plate 6. The oil cylinder support guard plate 6 is arranged on the side plate of the testing press, and the oil cylinder support guard plate 6 is provided with through holes corresponding to the guide holes.

[0030] As a preferred embodiment of the present invention, the rail car includes a guide wheel 10, an oil cylinder pressure testing support plate 11, an oil cylinder holding support frame 12, a support backing plate 13, a support flat seat 14, a second support lug 15 and a positioning bracket. The guide wheel 10 is installed on the oil cylinder pressure testing support plate 11. The front end of the oil cylinder pressure testing support plate 11 is provided with an oil cylinder holding support frame 12. The oil cylinder holding frame 5 is fixed on the oil cylinder holding support frame 12. The support backing plate 13 is fixed to the rear end of the oil cylinder pressure testing support plate 11. The support flat seat is arranged on the front end face of the oil cylinder pressure testing support plate 11. The second support lug 15 is arranged around the support flat seat 14 on the oil cylinder pressure testing support plate 11. The second support lug 15 and the first support lug 7 are on the same central axis. The positioning bracket is arranged on the rear end face of the support backing plate 13.

[0031] As a preferred embodiment of the present invention, the positioning bracket includes a limit I-beam 16 and a positioning clamp frame 17. The limit I-beam 16 is horizontally fixed to the rear end face of the support backing plate 13. The limit I-beam 16 is flush with the pressure testing piece pressure bearing device 3. The positioning clamp frame 17 is arranged at both ends of the limit I-beam 16. The positioning clamp frame 17 is slidably arranged in the pressure testing piece pressure bearing device 3. The positioning clamp frame 17 can be fixed to the pressure testing piece pressure bearing device 3 through a cylindrical limit pin.

[0032] As a preferred embodiment of the present invention, it further includes a protective cover 19. The protective cover 19 is arranged around the periphery of the support frame body.

[0033] The working principle of the pressure testing equipment of the present invention can be divided into the following steps:

[0034] 1. Oil cylinder device connection: After the oil cylinder is overhauled, adjust the oil cylinder holding frame of the pressure testing mechanism to the set length of the test oil cylinder and fix it through a cylindrical limit pin. Fix the oil cylinder on the pressure testing mechanism, and connect the pressure control and monitoring system to the oil filling port of the oil cylinder. After the system is started, the pressure inside the oil cylinder rises by injecting hydraulic oil and gradually reaches the preset working pressure.

[0035] 2. Pressure control and monitoring: Precisely control and real-time monitor the pressure inside the oil cylinder through the control system to ensure that the pressure stably reaches the target value and maintain continuous testing within the specified time.

[0036] 3. Performance detection: During the pressure testing process, the system automatically detects the sealing performance, compressive strength, resilience performance and potential leakage points of the oil cylinder, and feeds back data through the pressure sensor to real-time evaluate whether there is any abnormality in the oil cylinder.

[0037] 4. Data analysis and feedback: Based on the real-time data fed back by the pressure sensor, through the built-in data analysis algorithm, evaluate whether the performance of the oil cylinder meets the maintenance requirements to ensure that the repaired oil cylinder can be used normally in the working face.

[0038] The above are only the preferred embodiments of the present invention, and do not impose any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A functional multi-angle adjustable slide rail type self-moving pressure testing device, characterized in that It includes a pressure test mechanism and a pressure control and monitoring system. The pressure control and monitoring system is arranged on one side of the pressure test mechanism. The pressure test mechanism includes a support frame body. A walking rail is arranged inside the support frame body. A slide rail vehicle is arranged on the walking rail. One end of the slide rail vehicle is connected with an oil cylinder storage rack. A number of positioning holes are arranged on the oil cylinder storage rack. A guiding hole is opened on one end of the support frame body corresponding to the oil cylinder storage rack. The oil cylinder storage rack passes through the guiding hole and is fixed on the support frame body by a cylindrical limit pin. The oil cylinder is placed on the oil cylinder storage rack. Both ends of the oil cylinder are bolted to the slide rail vehicle and the support frame body respectively. The oil inlet of the oil cylinder is communicated with the pressure control and monitoring system.

2. The functional multi-angle adjustable slide rail type self-moving pressure testing device according to claim 1, wherein, The support frame body includes a base fixing plate, a test press side plate, a test piece stabilizer, a test piece pressure bearing device and an oil cylinder fixing mechanism. The test press side plates are arranged on both sides of the base fixing plate. A guiding hole is opened on one of the test press side plates. The test piece stabilizer is fixedly connected to the four corners of the test press side plate. The test piece pressure bearing device is arranged on both sides of the test press side plate. The oil cylinder fixing mechanism is arranged on the test press side plate where the guiding hole is opened.

3. The functional multi-angle adjustable sliding rail type self-moving pressure testing device according to claim 2, wherein The oil cylinder fixing mechanism includes an oil cylinder support guard plate and a number of first support ear seats. The number of first support ear seats are arranged around the oil cylinder support guard plate. The oil cylinder support guard plate is arranged on the test press side plate. The oil cylinder support guard plate is provided with a through hole corresponding to the guiding hole.

4. A functional multi-angle adjustable slide rail type self-moving pressure testing device according to claim 2, characterized in that, The test press side plate includes two test press cover plates and an inner support plate arranged horizontally in the middle.

5. A functional multi-angle adjustable slide rail type self-moving pressure testing device according to claim 3, characterized in that The slide rail vehicle includes guide wheels, an oil cylinder test pressure bearing plate, an oil cylinder storage support frame, a support cushion plate, a support flat seat, a second support ear seat and a positioning bracket. The guide wheels are installed on the oil cylinder test pressure bearing plate. An oil cylinder storage support frame is arranged at the front end of the oil cylinder test pressure bearing plate. The oil cylinder storage rack is fixed on the oil cylinder storage support frame. The support cushion plate is fixed at the rear end of the oil cylinder test pressure bearing plate. The support flat seat is arranged on the front end face of the oil cylinder test pressure bearing plate. The second support ear seat is arranged around the support flat seat on the oil cylinder test pressure bearing plate. The second support ear seat and the first support ear seat are on the same central axis. The positioning bracket is arranged on the rear end face of the support cushion plate.

6. A functional multi-angle adjustable slide rail type self-moving pressure testing device according to claim 5, characterized in that, The positioning bracket includes a limit I-beam and a positioning clamp frame. The limit I-beam is horizontally fixed on the rear end face of the support cushion plate. The limit I-beam is flush with the test piece pressure bearing device. The positioning clamp frame is arranged at both ends of the limit I-beam. The positioning clamp frame is slidably arranged in the test piece pressure bearing device.

7. A functional multi-angle adjustable slide rail type self-moving pressure testing device according to claim 1, characterized in that, An arc-shaped support plate for oil cylinder support is arranged at one end of the oil cylinder storage rack close to the slide rail vehicle.

8. A functional multi-angle adjustable sliding rail type self-moving pressure testing device according to claim 1, characterized in that, It also includes a protective cover. The protective cover is arranged around the support frame body.

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